Siae - Sdh Manual - General 3z5s

ALS Access Link Series SDH radio family

manual

MN.00164.E - 001 Volume 1/1

The information contained in this handbook is subject to change without notice. Property of Siae Microelettronica S.p.A. All rights reserved according to the law and according to the international regulations. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, without written permission from Siae Microelettronica S.p.A. Unless otherwise specified, reference to a Company, name, data and address produced on the screen displayed is purely indicative aiming at illustrating the use of the product. MS-DOS®, MS Windows® are trademarks of Microsoft Corporation HP®, HP OpenView NNM and HP–UX are Hewlett Packard Company ed trademarks. UNIX is a UNIX System Laboratories ed trademark. Oracle® is a Oracle Corporation ed trademark. Linux term is a trademark ed by Linus Torvalds, the original author of the Linux operating system. Linux is freely distributed according the GNU General Public License (GPL). Other products cited here in are constructor ed trademarks.

ALS

Section 1. GUIDE

9

1

DECLARATION OF CONFORMITY ............................................................................... 9

2

PURPOSE AND STRUCTURE OF THE MANUAL ............................................................12 2.1

PURPOSE OF THE MANUAL .................................................................................12

2.2

AUDIENCE BASIC KNOWLEDGE ..........................................................................12

2.3

STRUCTURE OF THE MANUAL .............................................................................12

Section 2. INSTALLATION

15

3

LIST OF ABBREVIATIONS.........................................................................................15

4

EQUIPMENT INTRODUCTION ...................................................................................17 4.1

SYSTEM OVERVIEW ..........................................................................................17

4.2

APPLICATION ...................................................................................................17

4.3

SYSTEM ARCHITECTURE ....................................................................................17 4.3.1 IDU.......................................................................................................18 4.3.1.1

IDU SDH modular (IDU ALS)......................................................18

4.3.1.2

IDU SDH compact (IDU ALS-C) ..................................................19

4.3.2 ODU......................................................................................................19 4.3.3 Frequency reuse systems (with XPIC) ........................................................19 4.4

MANAGEMENT SYSTEM......................................................................................19 4.4.1 Hardware platform ..................................................................................20 4.4.2 Management ports ..................................................................................20

5

INSTALLATION AND PROCEDURES FOR ENSURING THE ELECTROMAGNETIC COMPATIBILITY.......................................................................................................27 5.1

ALS SYSTEM ....................................................................................................27

5.2

MECHANICAL INSTALLATION..............................................................................27 5.2.1 IDU installation.......................................................................................27 5.2.1.1

Connections for 1+0 frequency reuse systems..............................27

5.2.1.2

Connections for 1+1 frequency reuse systems..............................27

5.2.2 ODU installation......................................................................................28

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5.2.2.1

ODU installation for AS version...................................................28

5.2.2.2

ODU installation for ALS version .................................................28

5.3

ELECTRICAL WIRING.........................................................................................28

5.4

GROUNDING CONNECTION ................................................................................30

IDU SDH CONNECTIONS .................................................................................31 6.1

IDU ALS CONNECTORS......................................................................................31

6.2

IDU ALS-C CONNECTORS...................................................................................34

INSTALLATION ONTO THE POLE OF THE ODU AS WITH SEPARATED ANTENNA ........38 7.1

INSTALLATION KIT ...........................................................................................38

7.2

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................38

7.3

INSTALLATION PROCEDURE ...............................................................................39

7.4

GROUNDING ....................................................................................................41

INSTALLATION ONTO THE WALL OF THE ODU AS WITH SEPARATED ANTENNA .......52 8.1

INSTALLATION KIT ...........................................................................................52

8.2

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................52

8.3

INSTALLATION PROCEDURE ...............................................................................52

8.4

GROUNDING ....................................................................................................54

INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA ......64 9.1

FOREWORD .....................................................................................................64

9.2

INSTALLATION KIT ...........................................................................................64

9.3

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................64

9.4

INSTALLATION PROCEDURE ...............................................................................65 9.4.1 Installation onto the pole of the system and the antenna ..................65 9.4.2 Installation of ODU..................................................................................65 9.4.3 ODU installation......................................................................................66

9.5

ANTENNA AIMING.............................................................................................67

9.6

COMPATIBILITY................................................................................................67

9.7

GROUNDING ....................................................................................................67

10 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309) ...............................................................................84 10.1

FOREWORD .....................................................................................................84

10.2

INSTALLATION KIT ...........................................................................................84

10.3

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................85

10.4

INSTALLATION PROCEDURE ...............................................................................85

10.5

1+0 MOUNTING PROCEDURES ...........................................................................86 10.5.1 Setting antenna polarization .....................................................................86 10.5.2 Installation of the centring ring on the antenna ...........................................86 10.5.3 Installation of 1+0 ODU ...............................................................86 10.5.4 Installation onto the pole of the assembled structure ...................................86 10.5.5 Installation of ODU (on 1+0 ).........................................................86 10.5.6 Antenna aiming ......................................................................................87 10.5.7 ODU grounding.......................................................................................87

10.6

1+1 MOUNTING PROCEDURES ...........................................................................87 10.6.1 Hybrid/circulator installation.....................................................................87 10.6.2 Installation of ODUs ................................................................................88

11 INSTALLATION ON POLE OF ODU ALS WITH SEPARATED ANTENNA .........................98

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11.1

TOOLS REQUIRED FOR INSTALLATION ................................................................98

11.2

INSTALLATION PROCEDURE ...............................................................................98

12 INSTALLATION ON POLE OF THE ODU ALS WITH INTEGRATED ANTENNA ..............110 12.1

FOREWORD ................................................................................................... 110

12.2

NEEDED TOOLS.............................................................................................. 110

12.3

INSTALLATION PROCEDURE ............................................................................. 110

12.4

ANTENNA ALIGNMENT ..................................................................................... 111

12.5

INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS ....................................... 127

13 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS .........................................129 13.1

Frequency reuse ............................................................................................. 129

13.2

Characteristics ............................................................................................... 129

14 ODU AS SUBSTITUTION FOR 1+1 FREQUENCY DIVERSITY SYSTEM .......................132 14.1

1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU ............................ 132

Section 3. LINE-UP AND MAINTENANCE

135

15 PROGRAMMING AND SUPERVISION .......................................................................135 15.1

GENERAL....................................................................................................... 135

16 LINE-UP OF THE RADIO HOP..................................................................................136 16.1

LINE-UP OF THE RADIO HOP ............................................................................ 136 16.1.1 Antenna alignment and received field measurement .................................. 136 16.1.2 Network element configuration ............................................................... 136 16.1.3 Radio checks ........................................................................................ 137

16.2

LASER FUNCTIONALITY TEST ........................................................................... 138 16.2.1 Switch-on procedure ............................................................................. 138 16.2.2 Automatic laser shut-down check ............................................................ 138

16.3

LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMS WITH XPIC (IDU ALS)... 138 16.3.1 Additional line-up operations for XPIC ...................................................... 138

16.4

NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS) .......................... 139 16.4.1 Management of automatic manual operations ........................................... 139 16.4.2 Automatically activated manual operations ............................................... 140

17 LINE UP OF ETHERNET LIM ....................................................................................144 17.1

GENERAL....................................................................................................... 144

17.2

ETHERNET FUNCTIONALITY.............................................................................. 144

17.3

SWITCH CONFIGURATION ............................................................................... 144 17.3.1 Tributary enabling................................................................................. 144 17.3.2 SWITCH GENERAL PARAMETERS ............................................................. 145 17.3.3 LAN1................................................................................................... 145 17.3.4 LAN2 / LAN3 ........................................................................................ 146 17.3.5 PORT-A / PORT-B.................................................................................. 147 17.3.6 SPANNING TREE ................................................................................... 148

17.4

CONFIGURATION EXAMPLES ............................................................................ 149

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17.4.1 Local LAN1 - Remote LAN1..................................................................... 149 17.4.2 Local LAN1 - Remote LAN1, Local LAN2 - Remote LAN2, Segregated ............ 151 17.5

LIM ETHERNET: GENERAL NOTES ON MANUAL OPERATIONS ................................ 152 17.5.1 1+0 LINK............................................................................................. 153 17.5.2 1+1 HOT STAND-BY (1 ANTENNA / SPACE DIVERSITY) .............................. 154 17.5.3 1+1 Frequency Div. (1 antenna / space diversity) ..................................... 156

18 PERIODICAL CHECKS .............................................................................................157 18.1

GENERAL....................................................................................................... 157

18.2

CHECKS TO BE CARRIED OUT .......................................................................... 157

19 TROUBLESHOOTING...............................................................................................158 19.1

GENERAL....................................................................................................... 158

19.2

TROUBLESHOOTING PROCEDURE ..................................................................... 158 19.2.1 Loop facilities ....................................................................................... 158 19.2.2 Alarm messages processing.................................................................... 159

19.3

FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC ... 160 19.3.1 Manual operations activated by FMP ........................................................ 160

20 EQUIPMENT CONFIGURATION /SAVE/. PARAMETER MODIFICATION AND CREATION OF VIRTUAL CONFIGURATIONS ...........................161 20.1

SCOPE .......................................................................................................... 161

20.2

PROCEDURE................................................................................................... 161 20.2.1 General equipment configuration............................................................. 161 20.2.2 Addresses and routing table ................................................................... 162 20.2.3 Remote Element Table........................................................................... 163

21 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING THE PARAMETERS ..............................................................................164 21.1

SCOPE .......................................................................................................... 164

21.2

CONFIGURATION ............................................................................... 164

21.3

CONFIGURATION .......................................................................... 164

22 ALS - FIRMWARE UPDATE ......................................................................................166 22.1

INTRODUCTION.............................................................................................. 166

22.2

SYSTEM VERSION OF FIRMWARE ...................................................................... 166

22.3

PRELIMINARY CHECKS .................................................................................... 167

22.4

FIRMWARE UPGRADE ...................................................................................... 167 22.4.1 N90485 - Equipment controller application ................................. 167 22.4.2 N90487 - Radio application (first branch) ................................... 169 22.4.3 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA (first branch)........................................................................................ 170 22.4.4 N90486 or N90530 - Modem (first branch) ................................. 170 22.4.5 Radio branch switch (1+1 systems only) .................................................. 171 22.4.6 N90487 - Radio application - second branch (1+1 system only) .... 172 22.4.7 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA second branch (1+1 system only) ........................................................... 172 22.4.8 N90486 or N90530 - Modem - second branch (1+1 system only) .. 172 22.4.9 N90486 or N90508 - Baseband ................................................. 173

22.5

FINAL CHECK ................................................................................................. 173 22.5.1 Downgrade procedure ........................................................................... 174

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Section 4. CHARACTERISTICS AND DESCRIPTIONS SPECIFICATION

175

23 SYSTEM CHARACTERISTICS ...................................................................................175 23.1

GENERAL....................................................................................................... 175

23.2

SYSTEM CHARACTERISTICS ............................................................................. 176

24 CHARACTERISTICS OF THE IDU .............................................................................180 24.1

GENERAL....................................................................................................... 180

24.2

STM-1 ELECTRICAL INTERFACE ........................................................................ 180

24.3

STM-1 OPTICAL INTERFACE ............................................................................. 180

24.4

2 Mbit/s WAYSIDE INTERFACE.......................................................................... 181

24.5

2 Mbit/s INTERFACE (E1), LIM 2xSTM-1/LIM 4xSTM-1 ......................................... 181

24.6

ETHERNET INTERFACE AND SWITCH CHARACTERISTICS ..................................... 182

24.7

64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11 .............................................. 184

24.8

ALARM INTERFACE.......................................................................................... 184

24.9

NETWORK MANAGEMENT INTERFACE ................................................................ 185

24.10 MODULATOR/DEMODULATOR ........................................................................... 185 24.11 CABLE INTERFACE .......................................................................................... 186 24.12 AVAILABLE LOOPS .......................................................................................... 186 24.13 BATTERY INTERFACE....................................................................................... 186 24.14 POWER SUPPLY CURRENT ................................................................................ 187 25 CHARACTERISTICS OF ODU....................................................................................188 25.1

GENERAL....................................................................................................... 188

26 DESCRIPTION OF THE SDH IDU .............................................................................189 26.1 26.2

GENERAL....................................................................................................... 189 DESCRIPTION OF IDU SDH MODULAR (IDU ALS) ................................................ 189 26.2.1 LIM ETHERNET description ..................................................................... 189 26.2.2 Description of the LIM nxSTM1 ............................................................... 193 26.2.2.1

STM-1 interface ..................................................................... 193

26.2.2.2

2xSTM-1 interface .................................................................. 194

26.2.2.3

4xSTM-1 interface .................................................................. 195

26.2.2.4

Up to 4xSTM-1 synchronisation ................................................ 195

26.2.3 Description of the RIM ........................................................................... 195 26.2.3.1

Modem ................................................................................. 195

26.2.3.2

Power supply and cable interface.............................................. 196

26.2.4 Description of RIM with XPIC .................................................................. 197 26.2.5 Description of the controller ................................................................... 197 26.2.5.1

Interface ports ....................................................................... 198

26.2.5.2

Equipment firmware ............................................................... 198

26.2.6 IDU telemetry ...................................................................................... 199 26.2.7 IDU loops ............................................................................................ 199 26.2.7.1

Line loop ............................................................................... 199

26.2.7.2

Baseband loop ....................................................................... 199

26.2.7.3

IDU loop ............................................................................... 199

26.2.8 Front of SDH IDU modular (IDU ALS) .............................................. 200 26.3

DESCRIPTION OF IDU SDH COMPACT (IDU ALS-C).............................................. 200 26.3.1 General ............................................................................................... 200 26.3.1.1

ALS - MN.00164.E - 001

STM-1 interface ..................................................................... 200

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26.3.1.2

2xSTM-1 interface .................................................................. 201

26.3.1.3

Modem ................................................................................. 202

26.3.1.4

Power supply and cable interface.............................................. 203

26.3.2 Controller ............................................................................................ 203 26.3.2.1

Interface ports ....................................................................... 203

26.3.2.2

Equipment firmware ............................................................... 203

26.3.3 IDU telemetry ...................................................................................... 204 26.3.4 IDU loops ............................................................................................ 204 26.3.4.1

Line loop ............................................................................... 205

26.3.4.2

Baseband loop ....................................................................... 205

26.3.4.3

IDU loop ............................................................................... 205

26.3.5 Front of SDH IDU compact (IDU ALS-C)........................................... 205 27 ODU AS DESCRIPTION ...........................................................................................225 27.1

GENERAL....................................................................................................... 225

27.2

TRANSMIT SECTION........................................................................................ 225

27.3

RECEIVE SECTION .......................................................................................... 225

27.4

CABLE INTERFACE .......................................................................................... 226

27.5

ATPC OPERATION ........................................................................................... 226

27.6

1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM ............................. 226

27.7

POWER SUPPLY .............................................................................................. 227

27.8

FREQUENCY REUSE......................................................................................... 227

28 ODU ALS DESCRIPTION .........................................................................................231 28.1

GENERAL....................................................................................................... 231

28.2

TRANSMITTER SECTION .................................................................................. 231

28.3

RECEIVER SECTION ........................................................................................ 232

28.4

CABLE INTERFACE .......................................................................................... 232 28.4.1 Power supply........................................................................................ 232

28.5

BRANCHING UNIT........................................................................................... 233

28.6

ATPC............................................................................................................. 233

28.7

RF LOOP (OPTION) ......................................................................................... 234

28.8

FREQUENCY REUSE......................................................................................... 234

Section 5. COMPOSITION

241

29 IDU COMPOSITION ................................................................................................241 29.1

GENERAL....................................................................................................... 241

29.2

COMPOSITION OF IDU SDH MODULAR .............................................................. 241

29.3

COMPOSITION OF IDU SDH COMPACT ............................................................... 242

30 ODU COMPOSITION ...............................................................................................243

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30.1

GENERAL....................................................................................................... 243

30.2

ODU AS COMPOSITION ................................................................................... 243

30.3

ALS ODU COMPOSITION .................................................................................. 244

ALS - MN.00164.E - 001

Section 6. SAFETY RULES AND EQUIPMENT DISPOSAL

247

31 FIRST AID FOR ELECTRICALSHOCK AND SAFETY RULES ........................................247 31.1

FIRST AID FOR ELECTRICAL SHOCK .................................................................. 247 31.1.1 Artificial respiration ............................................................................... 247 31.1.2 Treatment of burns ............................................................................... 247

31.2

SAFETY RULES ............................................................................................... 249

31.3

CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical & Electronic Equipment) ... 250

31.4

INTERNAL BATTERY ........................................................................................ 250

32 LIST OF FIGURES ...................................................................................................251 33 LIST OF TABLES .....................................................................................................257 34 ASSISTANCE SERVICE............................................................................................259 34.1

RQ.00961 MODULE ......................................................................................... 259

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ALS - MN.00164.E - 001

Section 1. GUIDE

1

DECLARATION OF CONFORMITY

SIAE Microelettronica S.p.A Via Buonarroti, 21 - Cologno (MI) - Italy DECLARES THAT THE PRODUCTS

Digital Radio Relay Systems model ALS comply with the essential requirements of article 3 of the R&TTE Directive (1999/05/EC) and therefore are marked: The following standards have been applied: EN 60950:2000 "Safety of information technology equipment" EN 301 489-4 v. 1.3.1 (2002-8) "Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 4: Specific conditions for fixed radio links and ancillary equipment and services" ETSI EN 302 217-2-2 V1.1.3 (2004-12) "Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part 2-2: Harmonized EN covering essential requirements of Article 3.2 of R&TTE Directive for digital systems operating in frequency bands where frequency co-ordination is applied." The equipment makes use of non-harmonized frequency bands. Following the requirements of the R&TTE Directive (article 12) and the relevant decision of the EC, in term of classification of Radio Equipment and Telecommunications Terminal Equipment and associated identifiers, the ALS shall carry the 'class 2' identifier: Cologno Monzese, 16/05/2005

ALS - MN.00164.E - 001

On behalf of SIAE Microelettronica S.p.A. Chairman and Executive Officer Alberto Mascetti

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2

PURPOSE AND STRUCTURE OF THE MANUAL

2.1

PURPOSE OF THE MANUAL

The purpose of this manual consists in providing the with information which permit to operate and maintain the ALS radio family. Warning: This manual does not include information relevant to the SCT/LCT management program windows and relevant application. They will be provided by the program itself as help-on line.

2.2

AUDIENCE BASIC KNOWLEDGE

The following knowledge and skills are required to operate the equipment: •

a basic understanding of SDH transmission

•

installation and maintenance experience on digital radio system

•

knowledge of IP/OSI networking.

2.3

STRUCTURE OF THE MANUAL

The manual is subdivided in sections, each one developing a subject pointed out as title of the section. Each section consists of a set of chapters, which describe more in detail the main subject.

Section 1 - Guide It expounds the purpose and the structure of the manual.

Section 2 - Installation The mechanical installation procedures are herein set down as well as the electrical connections. The content of the tool kit (if supplied) is also listed.

Section 3 - Line-up and maintenance Line-up procedures are described as well as checks to be carried out for the equipment correct operation. The list of the instruments to be used and their characteristics are also set down.The routine maintenance actions are described as well as fault location procedures in order to identify the faulty unit and to re-establish the operation after its replacement with a spare one.

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ALS - MN.00164.E - 001

Section 4 - Characteristics and description It traces the broad line of equipment operation and lists the main technical characteristics. List of abbreviation meaning is also supplied.

Section 5 - Composition Position, part numbers of the components the equipment consist of, are shown in this section.

Section 6 - Safety rules and equipment disposal It provides the information about the main safety rules and the equipment disposal (electrical and electronical wastes).

Section 7 - Lists and assistance The section contains the lists of the figures and the tables of the manual and the information relevant to the assistance service.

ALS - MN.00164.E - 001

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ALS - MN.00164.E - 001

Section 2. INSTALLATION

3

LIST OF ABBREVIATIONS

-

ATPC

Automatic Transmit Power Control

-

BB

Baseband

-

BBER

Background Block Error Ratio

-

BCM

Block Coded Modulation

-

BER

Bit Error Ratio

-

CC

Co-channel

-

C/I

Carrier to Interference (ratio)

-

DCC

Data Communication Channel

-

DRRS

Digital Radio Relay Systems

-

ECC

Embedded Control Channel

-

EMC

Electromagnetic Compatibility

-

ERC

European Radiocommunications Committee

-

HDLC

High-level Data Link Control

-

IDU

Indoor Unit

-

IF

Intermediate Frequency

-

LED

Light Emitted Diode

-

LAPS

Link Access Procedure SDH

-

LAN

Local Area Network

-

LIM

Line Interface Module

-

LO

Local Oscillator

-

LOS

Loss Of Signal

-

LOF

Loss Of Frame

-

LCT

Local Craft Terminal

-

MIB

Management Information Base

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MSOH

Multiplex Section Overhead

-

MST

Multiplex Section Termination

-

MTBF

Mean Time Between Failure

-

NE

Network Element

-

NMI

Network Management Interface

-

ODU

Outdoor Unit

-

PDH

Plesiochronous Digital Hierarchy

-

PPI

Plesiochronous Physical Interface

-

PPP

Point to Point Protocol

-

RFC

Radio Frequency Channel

-

RFCOH

Radio Frame Complementary OverHead

-

RIM

Radio Interface Module

-

RPS

Radio Protection Switching

-

RST

Regenerator Section Termination

-

RTPC

Remote Transmission Power Control

-

RSL

Received Signal Level

-

RSOH

Regenerator Section OverHead

-

RSPI

Radio Synchronous Physical Interface

-

RST

Regenerator Section Termination

-

RTPC

Remote Transmission Power Control

-

SDH

Synchronous Digital Hierarchy

-

SETS

SDH Equipment Timing Source

-

SETG

SDH Equipment Timing Generator

-

SNMP

Simple Network Management Protocol

-

SOH

Section OverHead

-

SPI

Synchronous Physical Interface

-

STM-1

Synchronous Transport Module Level 1(155.52 Mbit/s)

-

T/IP

Transmission Control Protocol/Internet Protocol

-

TMN

Telecommunications Management Network

-

TU

Tributary Unit

-

VC

Virtual Container

-

XPIC

XPIC Interference Canceller

-

XIF

XPIC Improvement Factor

-

VLAN

Virtual LAN

ALS - MN.00164.E - 001

4

EQUIPMENT INTRODUCTION

4.1

SYSTEM OVERVIEW

Access Link Series (ALS) radio family, is radio link family designed and developed by SIAE Microelettronica S.p.A. for high capacity transmission. The equipment offers scalable data rates from STM-1 up to 4xSTM-1 making use of 32 QAM or 128QAM software programmable modulation. Crosspolar Interference Canceller (XPIC) circuit allows the frequency reuse of the radio channel thus permitting to double the transmission capacity. Cost-effective, high reliability, fast installation, commonalities and fully programmability are the most outstanding performances that permits the ALS radio family to cope with success the very demanding telecommunication market.

4.2

APPLICATION

The equipment finds application in the following fields: •

urban and regional network

•

media diversity protection

•

Gigabit ethernet extension

•

SDH ring

•

high capacity interconnection among GSM/UMTS cellular infrastructures

•

spur route from backbone network.

4.3

SYSTEM ARCHITECTURE

The ALS equipment is split mount type. It consists of two separate units called IDU and ODU available in different versions: •

IDU is 19” wired mechanical structure for indoor rack mounting. The unit height depends on the different assembly versions. It contains circuitry for in/out tributary interfacing and management of the whole equipment.

•

ODU is a light, waterproof metallic body for pole or wall mounting. The internal circuitry makes up the RF head interfacing the antenna. The two units are interconnected via a single coaxial cable.

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17

4.3.1

IDU

The IDU unit is available in two versions: •

IDU SDH modular, for STM-1 and Ethernet traffic, called IDU ALS

•

IDU SDH compact, for STM-1 traffic, called IDU ALS-C.

4.3.1.1

IDU SDH modular (IDU ALS)

The IDU SDH is available in the following capacities: •

1+0, 1 unit high, up to 2xSTM-1 capacity

•

1+1, 1 unit high, up to 2xSTM-1 capacity

•

1+0, 1 unit high, up to 2xSTM-1 capacity with XPIC

•

1+1, 2 unit high, up to 2xSTM-1 capacity with XPIC

•

1+0, 1 unit high, up to 4xSTM-1 capacity

•

1+1, 2 unit high, up to 4xSTM-1 capacity

•

1+0, 1 unit high, up to 4xSTM-1 capacity with XPIC

•

1+1, 2 unit high, up to 4xSTM-1 capacity with XPIC

•

2x(1+0), 1 unit high, up to 2xSTM-1 each carrier

•

1+0, 1 unit high, Ethernet traffic, 290 Mbit/s capacity

•

1+1, 1 unit high, Ethernet traffic, 290 Mbit/s capacity

•

1+0, 1 unit high, Ethernet traffic, 580 Mbit/s capacity

•

1+1, 2 unit high, Ethernet traffic, 580 Mbit/s capacity each carrier

•

2x(1+0), 1 unit high, Ethernet traffic, 290 Mbit/s capacity each carrier.

STM-1 interfaces can be electrical or optical. With plug-in modules the electrical or optical interface can be selected by the for each STM-1 interface. The ALS IDU consists of LIM, CONTROLLER, RIM modules inserted into a wired shelf. The LIM interface contains tributaries and processes the STM-n frames in RST operating mode. Fig.1, Fig.2, Fig.3 and Fig.4 show equipment layouts, pointing out capacity and configuration with ODU AS as example (these configurations can ODU ALS too). Ethernet transmission - LIM Ethernet + services interfaces are the following: •

1 Gigabit optical port (plug-in)

•

2 10/100BaseT ports

•

8xE1.

Ethernet and E1 traffic, depending on requested capacity, is encapsulated (proprietary protocol) in various VC3. In this way the link can work in MST and in point to point connection only. The aggregate Ethernet traffic and service channels is sent to modulator of each RIM. In Rx side the opposite occurs. In 1+1 configuration the LIM duplicates the aggregate frames at Tx side and performs the changeover at Rx side. The RIM is supplied with the following:

18

•

all the circuitry for the 32/128QAM programmable modemodulation including FEC corrector. In case of cochannel operation the XPIC circuit option is used

•

the power supply unit that supplies power to the IDU circuits and sends the battery voltage to the ODU. Protection against cable short/open is also supplied.

•

the cable interface for the bidirectional communication between IDU and ODU via interconnecting cable.

ALS - MN.00164.E - 001

The Controller: •

contains the equipment software that permits to control and to manage all the equipment functionality through a main controller and associated peripherals distributed within IDU and ODU

•

interfaces the management system through Ethernet, RS232 and USB ports

•

receives external alarms and sends to relay s along the internal alarms generated by the equipment.

4.3.1.2

IDU SDH compact (IDU ALS-C)

IDU ALS-C compact is available for 1xSTM-1/2xSTM-1 capacity and 1+0 configuration. The unit description is included in the homonymous paragraph.

4.3.2

ODU

The ODU unit contains circuits that permits to interface from one side one IDU and the antenna from the other side. The QAM modulated carrier is shifted to RF frequency bands through a double conversion. Similarly it occurs at the receive side to send the IF converted carrier to the demodulator within the IDU. It is possible to two ODU units on one single ing plate (pole or wall). In the system there is the hybrid for 1+1 hot stand-by configuration or the circulator for 1+1 frequency diversity configuration. ODU unit is available for ODU AS and ODU ALS versions.

4.3.3

Frequency reuse systems (with XPIC)

The frequency reuse systems permit to double the link capacity. It is possible to transmit one carrier on vertical polarization and one on horizontal polarization. A cross polar interference canceller (XPIC) is necessary to reduce the effects of cross polar interference. The idea is that, with XPIC, the receiver re-constructs the wanted signal and deletes the interference. The interference is unknown and it is obtained in function of received signal on other polarization. The XPIC circuits are housed into indoor unit.

4.4

MANAGEMENT SYSTEM

The ALS family radio equipment can be managed by the following: •

SCT/LCT for the management of subnetworks. The two programs are running on the PC under windows platform.

•

NMS5UX for the management of large networks. The program is running on workstation under Unix platform and Linux platform.

Both tools use SNMP as management protocol along with IP or IPoverOSI as communication protocol. The main management functionalities implemented are: •

fault management (alarms, events, date, time, type, address, severity, etc...)

•

equipment configuration and test: configuration parameters, loopback, manual forcing of 1+1 switching, mapping of relay alarms and input

ALS - MN.00164.E - 001

19

•

software management: software release management and software ing

•

performance management: all performance according with ITU-T G.828 are ed, BER measurements, Rx level measurements etc...

•

security management: management of security levels for operator access.

4.4.1

Hardware platform

The hardware/software platform used by SCT/LCT is based on personal computer having at least following characteristics: •

microprocessor Pentium 133 MHz or more

•

64 Mbyte RAM

•

windows compatible graphic monitor

•

NIC interface

•

HD with 50 Mbyte of free space

•

Windows 95/Windows NT/Windows 98/Windows 2000/Windows XP.

4.4.2

Management ports

The SCT/LCT program is connected to the equipment via the following communication ports: •

Ethernet LAN, 10BaseT, 10Base2, AUI

•

Asynchronous RS232 serial line

•

USB port

•

Radio via DCC (Data Communication Channel embedded into the SOH of STM-n frame).

AS

2xSTM- 1

1U IDU ALS Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version

20

ALS - MN.00164.E - 001

Branching

AS 2xSTM-1

1U IDU ALS Fig.2 – 1xSTM-1 and 2xSTM-1 protected version

ODU AS

4xSTM - 1

1U IDU ALS Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version with RIM XPIC

ALS - MN.00164.E - 001

21

Branching

Branching

IDU ALS Fig.4 – 4xSTM1 optical interface protected version and RIM XPIC

22

ALS - MN.00164.E - 001

Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS

ALS - MN.00164.E - 001

23

SCT/ LCT

64 kbit/s

1x2 Mbit/s

1xSTM-1

64 kbit/s

1x2 Mbit/s

1xSTM-1

SOH insert

SOH insert

Controller princ. Visual. allarmi

Gest. ODU

CONTROLLER Contr. IDU

RSOH insert

RSOH drop

LIM

Batt.

PSU

Gest. ODU

Decoder

Encoder Interf. cavo

IDU

Alim. IDU

DEM

MOD

RIM1

Rx

- Alim. ODU Contr. ODU

+

Interf. cavo

Tx

RT1

ODU AS

Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS

24

ALS - MN.00164.E - 001

SCT/ LCT

64 kbit/s

2x2 Mbit/s

64 kbit/s 2xSTM-1

2x2 Mbit/s

2xSTM-1

2xSTM-1 DEMUX

2xSTM-1 MUX

Controller princ. Visual. allarmi

Gest. ODU

CONTROLLER Contr. IDU

Elab. SDH

Elab. SDH

LIM

Batt.

PSU

Gest. ODU

Decoder

Encoder Interf. cavo.

IDU

Alim. IDU

DEM

MOD

RIM1

Rx

- Alim. ODU Contr. ODU

+

Interf. cavo

Tx

RT1

ODU

Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or frequency diversity versions with ODU AS

ALS - MN.00164.E - 001

25

SCT/ LCT

2x2 Mbit/s 64 kbit/s

2x2 Mbit/s 64 kbit/s 2xSTM-1

2xSTM-1

2xSTM-1 DEMUX

Elab. SDH

IDU

Controller princ. Visual. allarmi

Gest. ODU

CONTROLLER Contr. IDU

2xSTM-1 MUX

Elab. SDH

LIM

Batt.

PSU

Interf. cavo

RIM2

Alim. IDU

DEM

Decoder

Gest. ODU

Interf. cavo

Alim. IDU

MOD

PSU

DEM

MOD

Coder

Batt.

ODU manag

Decoder

Coder

RIM1

-

Contr. ODU

+ -

Interf. cavo

Contr. ODU

+

Interf. cavo

Alim. ODU

Rx

Tx

RT2

Alim. ODU

Rx

Tx

RT1

ODU

Freq. Diversity

Hot Stand-by

Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS

26

ALS - MN.00164.E - 001

SCT/ LCT

2xSTM-1

4xSTM-1

2xSTM-1

2xSTM-1 DEMUX

2xSTM-1 MUX

2xSTM-1 DEMUX

2xSTM-1 MUX

Controller princ.

Visual. allarmi

Gest. ODU

CONTROLLER Contr. IDU

Elab. SDH

Elab. SDH

Elab. SDH

Elab. SDH

LIM

IDU

Batt.

DEM

Decoder

PSU

Interf. cavo

RIM2

Alim. IDU

XPIC

MOD

Gest. ODU

Interf. cavo

Alim. IDU

XPIC

DEM

MOD

Coder

Batt.

PSU

Gest. ODU

Decoder

Coder

RIM1

-

Contr. ODU

+

Interf. cavo

Contr. ODU

+

Interf. cavo

Alim. ODU

Rx

Tx

Alim. ODU

Rx

Tx

ODU2

ODU1

5

INSTALLATION AND PROCEDURES FOR ENSURING THE ELECTROMAGNETIC COMPATIBILITY

5.1

ALS SYSTEM

The equipment consists of IDU and ODU(s) units and is mechanically made up of a wired 19" subrack (IDU) and a weather proof metallic container (ODU). After unpacking, mechanical installation takes place followed by electrical connections as described in the following paragraphs. IDU and ODU installation procedures are different depending on their versions, only is these differences entail different procedures.

5.2

5.2.1

MECHANICAL INSTALLATION

IDU installation

On their sides the subracks making up the several IDU versions are provided with two holes for the M6 screws fastening the subracks to a rack or to a mechanical 19" structure. The front of the IDU mechanical structure is provided with two holes at the sides. This permits to fasten the subrack to a 19” rack by means of 4 M6 screws. Other close equipment have to be spaced by 1/2 unit (22 mm).

5.2.1.1

Connections for 1+0 frequency reuse systems

The frequency reuse systems require interconnections between the RIMs. They make use of cables with SMA-SMA male connectors. Fig.9 shows the interconnections for 1+0 version.

5.2.1.2

Connections for 1+1 frequency reuse systems

The frequency reuse systems require interconnections between the RIMs. They make use of cables with SMA-SMA male connectors. Fig.10 shows interconnections for 1+1 version.

ALS - MN.00164.E - 001

27

5.2.2

ODU installation

The description of installation procedures are different depending on ODU versions, As or ALS.

5.2.2.1

ODU installation for AS version

Refer to following procedures: •

Installation onto the pole of the ODU AS with separated antenna (see chapter 7)

•

Installation onto the wall of the ODU AS with separated antenna (see chapter 8)

•

Installation onto the pole of the ODU AS with integrated antenna (see chapter 9)

•

Installation onto the pole of the ODU AS with integrated antenna (KIT V32307, V32308, V32309) (see chapter 10)

5.2.2.2

ODU installation for ALS version

Refer to following procedures: •

Installation onto the pole of the ODU ALS with separated antenna (see chapter 11)

•

Installation onto the pole of the ODU AS with integrated antenna (see chapter 12)

STM1-1

STM1-2

STM1-3

-

STM1-4 RIM 1 RIM 2 W.S.1

W.S.2

V11

X

X

X

X

+

FAIL

-

IDU ODU R

RIM 1 REM

IN/OUT

RS232

RIM 2

+

TEST

Q3 LCT

Fig.9 – Interconnections for frequency reuse - 1+0 version

STM1-1

STM1-2

STM1-3

-

STM1-4 RIM 1 V11

W.S.2

X

X

X

X

X

X

X

X

+

RIM 2 W.S.1

RIM 1

+

RIM 2

RIM 1

+

RIM 2

-

IDU ODU R

RIM 1 TEST REM

RS232

IN/OUT

RIM 2

+

Q3 LCT

Fig.10 – Interconnections for frequency reuse - 1+1 version

5.3

ELECTRICAL WIRING

The electrical wiring must be done using appropriate cables thus assuring the equipment responds to the electromagnetic compatibility standards. The cable terminates to flying connectors which have to be connected to the corresponding connectors on the equipment front. Position and pin-out of the equipment connectors are available in this section. Tab.1 shows the characteristics of the cables to be used and the flying connector types.

28

ALS - MN.00164.E - 001

Tab.11 - Cable and connector characteristics

Interconnecting points

Type of connector terminating the cable

Battery

Polarised SUB-D 3W3 female connector

Section of each wire ≥ 2.5 sqmm

1

1.0/2.3 male connector

75 ohm coaxial cable ST214 type or equivalent

SUB-D 25 pin male connector

–120 Ohm balanced four symmetric pairs with shield –75 Ohm unbalanced four coaxial cable pairs with the shield connect to ground pin (see “6 IDU SDH CONNECTIONS” document for pin details)

1.0/2.3 male connector

- 75 ohm coaxial cable with double shield

inputs/alarms output

Female type D connector with 9 pins and shielded holder

9 conductor cable with double brass sheath type interconductor DB 28.25 or equivalent

RS232

Female type D connector with 9 pins and shielded holder/CAT5 shielded (ALS-C only)

9 conductor cable with double brass sheath type interconductor DB 28.10 or equivalent

GND

Faston male type

Section area ≥ 6 sq. mm.

LCT USB

Female USB type B

Cable USB 1.1

Tributary signals

1

Type of cable/conductor

For power cable length longer than 20 m. a section of 4 mm is required.

ALS - MN.00164.E - 001

29

5.4

GROUNDING CONNECTION

Fig.11 and annexed legend show how to perform the grounding connections.

Indoor

3

4

4

3

ODU unit 1

5

IDU unit

7

(+) (-)

2

6

Station ground

Local ground

ground Rack Legend (1)

IDU grounding point, fast type. The cross section area of the cable used must be ≥ 4 sq. mm. The faston is available on the IDU both sides.

(2)

ODU grounding bolt. The cross section area of the cable used must be ≥ 16 sq. mm.

(3)

IDU-ODU interconnection coax cable terminated with N-type male (ODU side) and SMA male (IDU side).

(4)

Grounding kit type Cabel Metal or similar to connect the shield of interconnection cable.

(5)

Matching cable (tail) terminated with N male and N female connectors.

(6)

Battery grounding point of IDU to be connected to earth by means of a cable with a section area 2.5 sq. mm. Length ≤ 10 m.

(7)

Grounding cords connected to a real earth internal of station. The cross section area of the cable must be ≥ 16 sq. mm. Fig.11 - Grounding connection

30

ALS - MN.00164.E - 001

6

IDU SDH CONNECTIONS

6.1

IDU ALS CONNECTORS

The connections are performed through connectors on RIM/LIM/CONTROLLER modules. Fig.12 shows the connectors position. Warning: The connector position are the same for all the IDU version. The connectors are the following:

LIM module •

STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with electrical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module

•

WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.

•

V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 fro connector pin-out.

LIM Ethernet module •

100/1000BaseX: plug-in module with optical interface, LC connector

•

10/100BaseT: RJ45 connector (see pin out in Tab.6)

•

Tributaries 1/8: SCSI 50 pin connector (see Fig.14, Tab.8, 75 Ohm or Tab.9 120 Ohm)

•

V11: RJ45 connector for 64 kbit/s contra-directional (see pin out in Tab.3).

CONTROLLER module •

LCT: connector USB type B male. For pin-out refer to USB standards

•

IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.

•

RS232: connector SUB-D, 9 pins male type. Refer to Tab.5 for connector pin-out.

•

Q3: connector BNC or connector RJ45. Refer to Tab.6 for connector RJ45.

RIM module •

Connector SMA/50 Ohm female for connection to ODU

•

Connector SUB-D, 3 pin male for connection to battery

•

Connector SMA/50 Ohm female for connection to other RIM for XPIC correction (only for XPIC equipment).

ALS - MN.00164.E - 001

31

STM1-1

-

STM1-2 RIM 1

+

FAIL

RIM 2 W.S.1

W.S.2

V11 IDU ODU R

Q3 LCT

TEST REM

IN/OUT

RS232

LIM 2xSTM1

10-100 BaseT

100-1000 BaseX

3

2

1

-

DPX ACT LINK

RIM 1

+

FAIL

RIM 2

Trib 1-8

V11 IDU ODU R Q3

LCT

RS232

TEST REM

IN/OUT

LIM Ethernet Fig.12 – Typical connector position (IDU ALS)

Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s Pin

Description

1

Tx–C

2

Tx–F

3

GND

4

––

5

Rx–C

6

Rx–F

7

GND

8

––

Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface

32

Pin

Description

1

D–V11–Tx

2

D+V11–Tx

3

C–V11–Tx

4

C+V11–Tx

5

D–V11–Rx

6

D+V11–Rx

7

C–V11–Rx

8

C+V11–Rx

ALS - MN.00164.E - 001

Tab.4 – in/out connector pin-out for external alarm input and alarm transfer to outside Pin

Description

1

Realy 1 common

2

NA/NC relay 1

3

Realy 2 common

4

NA/NC relay 2

5

input 04

6

input 03

7

input 02

8

input 01

9

GND

Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU) Pin

Description

1

Not to be connected

2

Rx D (IN)

3

Tx D (OUT)

4

Not to be connected

5

GND

6/7/8/9

––

Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection

ALS - MN.00164.E - 001

Pin

Description

1

Tx+

2

Tx–

3

Rx+

4

––

5

––

6

Rx–

7

––

8

––

33

6.2

IDU ALS-C CONNECTORS

The connections are performed through connectors on the unit front. Fig.13 shows the connectors position. The connectors are the following: •

STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with electrical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module

•

WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.

•

V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 for connector pin-out.

•

LCT: connector USB type B male. For pin-out refer to USB standards

•

IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.

•

RS232: connector RJ45 type. Refer to Tab.7 for connector pin-out.

•

Q3: double connector RJ45. Refer to Tab.6 for connector RJ45.

•

Connector SMA/50 Ohm female for connection to ODU

•

Connector SUB-D, 3 pin male for connection to battery Tab.7 - Pin out of IDU compact RS232 connector Pin

Description

1

RTS

2

TxD

3

DTR

4

DSR

5

Gnd

6

RxD

7

CTS

8

n.c.

V11

RS232

Q3/1

Q3/2

2Mb/s WAY SIDE STM1-1

STM1-2

LCT 1

2

IN/OUT

+

2 1

-

ODU TEST

IDU ON

Fig.13 - Connectors position (IDU ALS-C)

34

ALS - MN.00164.E - 001

Tab.8 - Tributary IN/OUT - 75 Ohm Pin

75 Ohm

48

Ground A

23

Tributary 1/9/17/25/33/41/49 input

50

Ground A

25

Tributary 1/9/17/25/33/41/49 output

47

Ground A

22

Tributary 2/10/18/26/34/42/50 input

45

Ground A

20

Tributary 2/10/18/26/34/42/50 output

42

Ground A

17

Tributary 3/11/19/27/35/43/51 input

43

Ground A

18

Tributary 3/11/19/27/35/43/51 output

40

Ground A

15

Tributary 4/12/20/28/36/44/52 input

39

Ground A

14

Tributary 4/12/20/28/36/44/52 output

36

Ground B

11

Tributary 5/13/21/29/37/45/53 input

37

Ground B

12

Tributary 5/13/21/29/37/45/53 output

34

Ground B

9

Tributary 6/14/22/30/38/46 input

33

Ground B

8

Tributary 6/14/22/30/38/46 output

29

Ground B

4

Tributary 7/15/23/31/39/47 input

31

Ground B

6

Tributary 7/15/23/31/39/47 output

28

Ground B

3

Tributary 8/16/24/32/40/48 input

26

Ground B

1

Tributary 8/16/24/32/40/48 output

25

.........................

1

.........................

50

26

Fig.14 - Pin-out Tributary IN/OUT 50 SCSI

ALS - MN.00164.E - 001

35

Tab.9 - Tributary IN/OUT - 120 Ohm

36

Pin

120 Ohm

49

Tributary 1/9/17/25/33/41/49 input

23

Tributary 1/9/17/25/33/41/49 input

44

Ground A

24

Tributary 1/9/17/25/33/41/49 output

25

Tributary 1/9/17/25/33/41/49 output

44

Ground A

21

Tributary 2/10/18/26/34/42/50 input

22

Tributary 2/10/18/26/34/42/50 input

44

Ground A

46

Tributary 2/10/18/26/34/42/50 output

20

Tributary 2/10/18/26/34/42/50 output

44

Ground A

16

Tributary 3/11/19/27/35/43/51 input

17

Tributary 3/11/19/27/35/43/51 input

44

Ground A

19

Tributary 3/11/19/27/35/43/51 output

18

Tributary 3/11/19/27/35/43/51 output

44

Ground A

41

Tributary 4/12/20/28/36/44/52 input

15

Tributary 4/12/20/28/36/44/52 input

44

Ground A

13

Tributary 4/12/20/28/36/44/52 output

14

Tributary 4/12/20/28/36/44/52 output

44

Ground A

10

Tributary 5/13/21/29/37/45/53 input

11

Tributary 5/13/21/29/37/45/53 input

32

Ground B

38

Tributary 5/13/21/29/37/45/53 output

12

Tributary 5/13/21/29/37/45/53 output

32

Ground B

35

Tributary 6/14/22/30/38/46 input

9

Tributary 6/14/22/30/38/46 input

32

Ground B

7

Tributary 6/14/22/30/38/46 output

8

Tributary 6/14/22/30/38/46 output

32

Ground B

ALS - MN.00164.E - 001

ALS - MN.00164.E - 001

5

Tributary 7/15/23/31/39/47 input

4

Tributary 7/15/23/31/39/47 input

32

Ground B

30

Tributary 7/15/23/31/39/47 output

6

Tributary 7/15/23/31/39/47 output

32

Ground B

27

Tributary 8/16/24/32/40/48 input

3

Tributary 8/16/24/32/40/48 input

32

Ground B

2

Tributary 8/16/24/32/40/48 output

1

Tributary 8/16/24/32/40/48 output

32

Ground B

37

7

INSTALLATION ONTO THE POLE OF THE ODU AS WITH SEPARATED ANTENNA

7.1

INSTALLATION KIT

Following installation kits are supplied with the equipment: •

•

1+0 system -

antisliding strip (see Fig.15)

-

ing plate plus 60–114 mm pole fixing bracket and relevant nuts and bolts (see Fig.16)

-

adapting tools and relevant bolts and nuts for 219 mm pole

-

antenna side flange, variable as function of RF frequency (see Fig.18)

-

with ODU fast locking mechanism (see Fig.16)

-

connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional) (see Fig.18)

-

kit for ground connection making part of ODU

1+1 system -

antisliding strip (see Fig.15)

-

ing plate plus pole fixing bracket and relevant nuts and bolts (see Fig.16)

-

adapting tools and relevant bolts and nuts for 219 mm pole

-

hybrid/circulator with ODU fast locking mechanism (see Fig.20), (hybrid for 1+1 hot stand-by configuration, circulator for 1+1 frequency diversity configuration)

-

flexible waveguide trunk for connection to antenna (optional) (see Fig.18)

-

kit for ground connection making part of the two ODUs.

Warning: in order to avoid damages to flexible waveguides, don’t fold or twist them more than values specified as limit in installation instructions of the waveguide supplier.

7.2

38

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

•

N.2 13mm torque wrench

•

N.1 15 mm torque wrench

•

N.1 17 mm torque wrench

•

N.1 3 mm Allen wrench

ALS - MN.00164.E - 001

7.3

INSTALLATION PROCEDURE

Installation procedure proceeds according to the following steps: 2

•

1+0 system: installation onto the pole of the ing plate

•

1+0 system: installation onto the pole of the ing plate by Band-it

•

1+1 system: installation onto the pole of the ing plate

•

Installation of the ODU (common to both 1+0 and 1+1 system)

•

ODU grounding

2

1+0 system – Installation onto the pole of the ing plate Fig.15 – Mount antislide strip around the pole. The position of the plastic blocks depends on the position of the ing plate (see next step) Fig.16 – Adhere the ing plate to the antisliding strip plastic blocks and then secure it to the pole through the fixing bracket for 60–114 mm pole (see Fig.16). Bolts and nuts are available on the ing plate. Tightening torque must be 32 Nm. Warning: As shown in Fig.17 an adapting kit must be used for the 219 mm pole. It consists of an additional plate to enlarge the standard ing plate dimension and relevant U–bolt for 219 mm pole fixing. Fig.18 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimensions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with the following torque: Tab.10 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Fig.18 – Fix the antenna side flange to the with ODU fast locking mechanism. The flange can be mounted horizontally (as shown in Fig.18) or vertically as function of convenience. Fig.19 – Fix the with ODU fast locking mechanism to the ing plate making use of available bolts and nuts. Fig.19 shows the possible positions. Tightening torque must be 18 Nm.

1+0 system - Installation onto the pole of the ing plate by Band-it In case of installation of an ODU 1+0 with separated antenna, the pole fixing system Band-it can be used: through the holes (see Fig.22) on the base of the ODU two metallic strips are placed tightening the pole. Two clips close the strips. The characteristics of the strip are: •

thickness = 0,76 mm

•

width = 19 mm

•

material = steel AISI 201/304

Clip characteristics are: •

2

material = steel AISI 201/304,

In case of 219 mm pole, an adapting kit is supplied for the purpose.

ALS - MN.00164.E - 001

39

1+1 versions – Installation onto the pole of the ing plate Fig.15 – Mount antislide strip around the pole. The position of the plastic blocks depends on the position of the ing plate (see next step) Fig.16 – Position the ing plate to the antisliding strip plastic blocks and then secure it to the pole through the fixing bracket for 60–114 mm pole. Bolts and nuts are available on the ing plate kit. Tightening torque must be 32 Nm. Fig.20 – Secure the hybrid/circulator with ODU fast locking mechanism to the ing plate using bolt and nuts available on the plate. Tightening torque must be 18 Nm. Remove the plastic cover from the hybrid flange sides. Warning: Do not remove the foil from the hybrid flange sides. Fig.20 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimensions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with the following torque:

Tab.11 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flange as shown in Fig.24. This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU 1

Bring the ODU with the two hands and position the ODU handle at the bottom side.

2

Remove the plastic cover from the ODU flange side. Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE 4 to the O–ring of Fig.23.

3

Position the ODU body close to the with ODU fast locking mechanism and align the correspondent flanges: -

1+0, align ODU side flange (see Fig.23) to antenna side flange (ODU position depends on the polarization) see Fig.18

-

1+1 hot stand-by, align ODU side flange (see Fig.23) to hybrid side flange (see Fig.20)

-

1+1 frequency diversity, align ODU side flange (see Fig.23) to circulator side flange (see Fig.20)

Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.21. 4

After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the and search for alignment between reference tooth on the (see Fig.18 – 1+0 version or Fig.20 – 1+1 version) and ODU body reference tooth (see detail Fig.23)

5

When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rotation stops.

6

Secure ODU body on the by tightening bolts (1) (see Fig.18 – 1+0 version or Fig.20 – 1+1 version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by version is shown in Fig.24. Final assembly of 1+1 frequency diversity version is shown in Fig.25. A parasol mounting is optionally possible.

40

ALS - MN.00164.E - 001

7.4

GROUNDING

The ODU must be connected to ground making reference to details of Fig.26.

Plastic blocks

Antisliding strip

Fig.15 - Antisliding strip

ALS - MN.00164.E - 001

41

Use 17 mm wrench (32Nm torque)

ing plate Use 15 mm wrench (32Nm torque)

Fig.16 - 60–114 mm pole ing plate fixing

42

ALS - MN.00164.E - 001

Fig.17 - Adapting kit for 219 mm pole

ALS - MN.00164.E - 001

43

Antenna side flange

with ODU fast locking mechanism

Reference tooth Reference tooth

1 1 13 mm wrench 6 Nm torque

Position of antenna side flange *: The flexible waveguides must not be bent more than their limit bending radius (see technical characteristics attached to the waveguide itself) Fig.18 - Possible mounting position

44

ALS - MN.00164.E - 001

13 mm key (Torque = 18)

A plate

Adapting kit for 219 mm pole

with ODU fast locking mechanism

B

C

Fig.19 - Possible positions of the with ODU fast locking mechanism

ALS - MN.00164.E - 001

45

Flexible waveguide * Use 13 mm wrench (18 Nm torque)

Hybrid with ODU fast locking mechanism

Reference tooth

Reference tooth

1

Optional vawe guide 1

RT1

Use 13 mm wrench (6 Nm torque)

RT2

*: The flexible waveguides must not be bent more than their limit bending radius (see technical characteristics attached to the waveguide itself) Fig.20 - Installation onto the pole of the ing plate

46

ALS - MN.00164.E - 001

Polarization disk

Fig.21 - Circulator for 1+1 frequency diversity systems

ALS - MN.00164.E - 001

47

Fig.22 - Band-it pole fixing

O-ring

Tooth "N"

"BNC"

Ground bolt Fig.23 - ODU reference tooth

48

ALS - MN.00164.E - 001

Fig.24 - Final ODU assembly of 1+1 hot stand-by version

ALS - MN.00164.E - 001

49

Fig.25 - Final assembly of 1+1 frequency diversity system

50

ALS - MN.00164.E - 001

2

1 1

Bolt

2

Grounding collar Fig.26 - ODU grounding

ALS - MN.00164.E - 001

51

8

INSTALLATION ONTO THE WALL OF THE ODU AS WITH SEPARATED ANTENNA

8.1

INSTALLATION KIT

Following installation kits are supplied with the equipment depending on different versions: •

•

8.2

1+0 system -

wall ing plate with additional surface extension plates (see Fig.27)

-

antenna side flange, variable as function of RF frequency (see Fig.28)

-

with ODU fast locking mechanism (see Fig.28)

-

connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional) (see Fig.28)

-

kit for ground connection making part of ODU

1+1 system -

ing plate with additional surface extension tools (see Fig.27)

-

hybrid/circulator with ODU fast locking mechanism (see Fig.30), (hybrid for 1+1 hot stand-by configuration, circulator for 1+1 frequency diversity configuration)

-

connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional) (see Fig.28)

-

kit for ground connection making part of the two ODUs.

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

•

N.2 13mm torque wrench

•

N.1 15 mm torque wrench

•

N.1 17 mm torque wrench

•

N.1 3 mm allen wrench.

8.3

INSTALLATION PROCEDURE

Installation procedure proceeds according to the following steps:

52

•

1+0 system: installation onto the wall of the ing plate

•

1+1 system: installation onto the wall of the ing plate

•

installation of the ODU (common to both 1+0 and 1+1 system)

•

ODU grounding.

ALS - MN.00164.E - 001

1+0 system – Installation onto the wall of the ing plate Fig.27 – Fix on the ing plate the two supplied extension plates to increase the wall surface. Fig.27 – Secure the ing plate on the wall using the more suitable screws. Fig.28 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimensions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with the following torque: Tab.12 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Fig.28 – Fix the antenna side flange to the with ODU fast locking mechanism. The flange can be mounted horizontally (as shown in Fig.28) or vertically as function of convenience. Fig.29 – Fix the with ODU fast locking mechanism to the ing plate making use of available bolts and nuts. Fig.29 shows three possible positions. Tightening torque must be 18 Nm.

1+1 system – Installation onto the wall of the ing plate Fig.27 – Fix on the ing plate the two supplied extension plates to increase the wall surface. Fig.27 – Secure the ing plate on the wall using the more suitable screws. Fig.30 – Secure the hybrid with ODU fast locking mechanism to the ing plate using bolt and nuts available on the plate. Tightening torque must be 18 Nm. Remove the plastic cover from the hybrid flange sides. Warning: Do not remove the foil from the hybrid flange sides. Fig.30 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimensions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with the following torque: Tab.13 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flange as shown in Fig.34 This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU 1

Bring the ODU with the two hands and position the ODU handle at the bottom side.

2

Remove the plastic cover from the ODU flange side. Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE 4 to the O–ring of Fig.33.

3

Position the ODU body close to the with ODU fast locking mechanism and align the correspondent flanges: -

1+0, align ODU side flange (see Fig.33) to antenna side flange (ODU position depends on the polarization) see Fig.28.

-

1+1 hot stand-by, align ODU side flange (see Fig.33) to hybrid side flange (see Fig.30)

-

1+1 frequency diversity, align ODU side flange (see Fig.33) to circulator side flange (see Fig.30)

Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.31.

ALS - MN.00164.E - 001

53

4

After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the and search for alignment between reference tooth on the (see Fig.28 – 1+0 version or Fig.30 – 1+1 version) and ODU body reference tooth (see detail Fig.33)

5

When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rotation stops.

6

Secure ODU body on the by tightening bolts (1) (see Fig.28 – 1+0 version or Fig.30 – 1+1 version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by system is shown in Fig.34. Final assembly of 1+1 frequency diversity system is shown in Fig.35. A parasol mounting is optionally possible.

8.4

GROUNDING

The ODU must be connected to ground making reference to details of Fig.36.

54

ALS - MN.00164.E - 001

Extension plate ing plate

M8 bolt and nut

Another possible fixation

Fig.27 - Wall ing plate

ALS - MN.00164.E - 001

55

Antenna side flange

with ODU fast locking mechanism

Reference tooth Reference tooth

1 1 13 mm wrench 6 Nm torque

Position of antenna side flange

Fig.28 - with ODU fast locking mechanism

56

ALS - MN.00164.E - 001

Fig.29 - Possible mounting positions

ALS - MN.00164.E - 001

57

Flexible waveguide Use 13 mm wrench (18 Nm torque)

Hybrid with ODU fast locking mechanism

Reference tooth

Reference tooth

Optional wave guide

1

1

RT1

RT2

Fig.30 - Installation onto the wall of the ing plate

58

ALS - MN.00164.E - 001

Fig.31 - Circulator of 1+1 frequency diversity system

ALS - MN.00164.E - 001

59

Vertical

Horizontal

Fig.32 - Position of the ODU body: 1+0 system - depending on the polarisation. 1+1 hot stand-by system - polarisation is always vertical (handle always at the left side) 1+1 frequency diversity system - polarisation is always horizontal (handle always at the right side)

O-ring

"N"

"BNC"

Ground bolt Fig.33 - ODU body reference tooth

60

ALS - MN.00164.E - 001

Suncover (optional)

Fig.34 - Final assembly of 1+1 hot stand-by version

ALS - MN.00164.E - 001

61

Fig.35 - Final assembly of 1+1 frequency diversity version

62

ALS - MN.00164.E - 001

2

1 1

Bolt

2

Earth cable collar Fig.36 - ODU grounding

ALS - MN.00164.E - 001

63

9

INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA

9.1

FOREWORD

The installation onto the pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.

9.2

INSTALLATION KIT

Following installation kits are supplied with the equipment depending on different systems:

1+0 system •

60 to 114 mm pole mounting kit consisting of: -

centering ring and relevant screws (see Fig.37)

-

antislide strip (see Fig.38)

-

pole system and pole fixing brackets (see Fig.39)

-

ODU with O–ring and devices for ground connection

1+1 system •

-

centering ring and relevant screws (see Fig.37)

-

antislide strip (see Fig.38)

-

pole system and pole fixing brackets (see Fig.39)

•

hybrid for hot stand-by version (see Fig.48) or circulator for frequency diversity version (see Fig.49)

•

polarization twist disk (see Fig.51)

•

2 ODUs with O–rings and devices for ground connection.

9.3

64

pole mounting kit from 60 to 114 mm for 1+1 consisting of:

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

•

N.2 13 mm torque wrench

•

N.1 15 mm torque wrench

•

N.1 17 mm torque wrench

•

N.1 3 mm allen wrench.

ALS - MN.00164.E - 001

9.4

INSTALLATION PROCEDURE

Installation procedure proceeds according with the following steps:

1+0 system 1

installation onto the pole of the system

2

installation of the antenna

3

installation of ODU

4

antenna aiming

5

ODU grounding

1+1 system 1

installation onto the pole of the system

2

installation of the antenna

3

installation of hybrid/circulator circuit

4

installation of the two ODUs

5

antenna aiming

6

ODU grounding.

9.4.1

Installation onto the pole of the system and the antenna

Fig.37 – Set the antenna in such a position as to be able to operate on its rear side. Locate the five threaded holes around antenna flange. Mount centering ring onto antenna flange and tight it with 3 calibrated bolts. Caution: centering ring should be mounted so that the screws do not stick out. Define if the antenna will be mounted with vertical or horizontal polarization. Check that free drain holes stay at bottom side. Mount bolt type M10x30, in position A leaving it loose of 2 cm approx. With horizontal polarization mount bolt type M10x30 in position D, leaving it loose of 2 cm approx. Fig.38 – Mount antislide strip onto the pole. Place blocks as in Fig.38 following antenna aiming direction. Tighten the strip with screwdriver. Fig.39 – Mount pole ing system with relevant pole fixing brackets following antenna aiming direction as indicated by arrow. Antislide strip should result at the center of ing plate. ing system should lean against antislide clamp with the tooth as in Fig.40. Position the antenna in such a way that bolt in position A or D of Fig.37 cross through hole E of Fig.41. Secure the system to the pole by means of the pole fixing brackets and relevant fixing bolts. Fig.42 – Rotate the antenna body until the remainder three antenna holes coincide with the three holes. Secure the antenna to the by thightening the relevant ing through bolts.

9.4.2

Installation of ODU

1+0 system 1

Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring (4) of Fig.45 by protecting finger hands with gloves.

ALS - MN.00164.E - 001

65

2

Bring the ODU with the two hands and position the ODU handle at the bottom side. The ODU handle can assume position of Fig.43 depending on the polarization.

3

Position the ODU body near the system and align ODU side flange to antenna side flange (see Fig.44). With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert the ODU body into the and search for alignment between reference tooth on the (see Fig.44) and ODU body reference tooth (see detail of Fig.45).

4

When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rotation stops. Fig.46 and Fig.47 show ODU housing final position for vertical and horizontal polarization respectively.

5

Secure ODU body on the system by tightening bolts (1) of Fig.44.

1+1 system Fig.48 (hot stand-by) or Fig.49 (frequency diversity) – Apply silicon grease, type “RHODOSIL PATE 4” to O–rings (1). Insert O–rings (1) and (6) into twist polarization disk (2). Vertical polarization Fix the disk on hybrid flange placing marker (4), on disk, close to V mark. Horizontal polarization Fix the disk on hybrid flange placing reference (4), on disk, close to H mark. Caution: Twist disk has two planes. Take care of position marker (4) on twist disk. The position of marker (4) plane should be in to hybrid like in figure. Tighten progressively and alternatively four screws (7) with four spring washers (8) with the following torque: Tab.14 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Fig.51 – Fix hybrid to system with four bolts (1) taking care of RT1/RT2 position shown by labels of Fig.51. Tighten progressively and alternatively four bolts (1). In 13 and 15 GHz ODU the polarization disk is fixed to hybrid flange by means of three screws, as shown in Fig.50.

9.4.3

ODU installation

1

Bring the ODU with the two hands and position the ODU handle at the bottom side.

2

Remove the plastic cover from the ODU flange side. Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE 4 to the O–ring of Fig.45.

3

Position the ODU body close to the with ODU fast locking mechanism and align the correspondent flanges: -

1+0, align ODU side flange (see Fig.45) to antenna side flange (ODU position depends on the polarization) see Fig.44.

-

1+1 hot stand-by, align ODU side flange (see Fig.45) to hybrid side flange (see Fig.48)

-

1+1 frequency diversity, align ODU side flange (see Fig.45) to circulator side flange (see Fig.49)

Note: Hybrid (see Fig.48) and circulator (see Fig.49) differ for waveguide orientation.

66

ALS - MN.00164.E - 001

4

After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the and search for alignment between reference tooth on the (see Fig.44 – 1+0 version or Fig.48 and Fig.49 – 1+1 version) and ODU body reference tooth (see detail Fig.45)

5

When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rotation stops.

6

Secure ODU body on the by tightening bolts (1) (see Fig.44 – 1+0 version or Fig.48 and Fig.49 – 1+1 version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by version is shown in Fig.52. Final assembly of 1+1 frequency diversity version is shown in Fig.53. A parasol mounting is optionally possible.

9.5

ANTENNA AIMING

Antenna aiming for 1+0 version and 1+1 version is the same. The antenna aiming devices allow to perform the following adjustments with respect to the starting aiming position: -

Horizontal

± 15° operating on the nut (3) shown in Fig.54, only after having loosen the nuts (7), (8), (9), (10) of Fig.55.

-

Vertical

± 15° operating on vertical adjustment worm screw (2) shown in Fig.54 only after having loosen nuts (1), (2), (11) of Fig.55 and (4) and (5) of Fig.54. For adjustment from 0° to +30° extract nut (1) Fig.55 and position it in hole (4), extract nut (2) Fig.55 and position it in hole (6). Operate on vertical adjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.55 and (4) of Fig.54. For adjustment from 0° to –30° extract nut (1) of Fig.55 and position it in hole (3), extract nut (2) of Fig.55 and position it in hole (5). Operate on vertical adjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.55 and (4) of Fig.54. For vertical adjustment some markers, every 10°, are available on . The bigger marker gives 0° starting aiming position. Once the optimum aiming position is obtained, tighten firmly the four nuts (1), (2), (11) of Fig.55 and (4) and (5) of Fig.54 for vertical adjustment and the four nuts (7), (8), (9), (10) of Fig.55 for horizontal adjustment. Tighten with 15 mm wrench and 32 Nm torque.

9.6

COMPATIBILITY

The pole installation kit of the ODU unit in 1+0 and 1+1 configuration is compatible with integrated antenna complying with SIAE standard with measures 0.2 m, 0.4 m, 0.6 m, 0.8 m of diameter.

9.7

GROUNDING

See Fig.56. On ODU grounding can be connected with the available bolt spring washer and flat washers as shown.

ALS - MN.00164.E - 001

67

A

D

D

C

B

C

A

B

Vertical polarization

Horizontal polarization

3 mm Allen key 2,5 Nm torque

2 3

A C

1

B

1

Antenna

2

Calibrated Allen screw

3

Centering ring Fig.37 - Centering ring position

68

ALS - MN.00164.E - 001

2

1

1

Steel belt

2

Plastic blocks Fig.38 - Antislide strip

ALS - MN.00164.E - 001

69

1

2 Antenna aiming direction

3

15 mm wrench 32 Nm torque

3

3

1 3

3

3 1

Pole fixing brackets

2

Tooth

3

Bolt

4

Pole system Fig.39 - mount on pole

70

ALS - MN.00164.E - 001

Antenna aiming direction

1

1

Tooth Fig.40 - ing system position

E

Fig.41 - Hole E

ALS - MN.00164.E - 001

71

B

A

C

D 15 mm wrench 32 Nm torque

A, B, C, D Bolt slots Fig.42 - Antenna installation on pole

Vertical

Horizontal

Fig.43 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisation is always horizontal. Handle at the right side.

72

ALS - MN.00164.E - 001

13 mm wrench 6 Nm torque

1

V

Vertical polarization

V 1 1

13 mm wrench 6 Nm torque

H

Horizontal polarization

H 1 H: Reference tooth Fig.44 - system for ODU housing and reference tooth in evidence

ALS - MN.00164.E - 001

73

Reference tooth O-ring ODU side flange

"N"

"BNC"

Ground bolt Fig.45 - ODU body reference tooth

30°

Fig.46 - ODU housing final position for vertical polarization

74

ALS - MN.00164.E - 001

30°

30°

Fig.47 - ODU housing final position for horizontal polarization

ALS - MN.00164.E - 001

75

7 8 1 2 4

6

5

3

1

O–ring

2

Polarization twist disk

3

Hybrid mechanical body

4

Position marker of twist disk

5

Reference label for twist disk

6

O–ring

7

Allen screws

8

Spring washer Fig.48 - Hybrid and polarization disk

76

ALS - MN.00164.E - 001

7

1

2 4

6

5 3

1

O-Ring

2

Polarizer disk

3

Circulator mechanical body

4

Disk position indication

5

Disk reference

6

O-Ring

7

Allen screws with spring washers Fig.49 - Circulator and polarization disk

ALS - MN.00164.E - 001

77

Horizontal polarization

Vertical polarization

Fig.50 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)

78

ALS - MN.00164.E - 001

1 RT1 2 1 RT2 1

Bolts

2

Spring washer

13 mm wrench 18 Nm torque

Fig.51 - Hybrid mount on pole

ALS - MN.00164.E - 001

79

Fig.52 - ODU final position for 1+1 version

Fig.53 - Final ODU assembly of 1+1 frequency diversity version

80

ALS - MN.00164.E - 001

3

4 5

2

1

Marker

2

Vertical adjustment

3

Horizontal adjustment

4

Bolt

5

Fixing nut

1

Fig.54 - Vertical and horizontal adjustments

ALS - MN.00164.E - 001

81

15 mm wrench 32 Nm torque

15 mm wrench 32 Nm torque

4

11

7

1

3

8

10 9 5

2

6

15 mm wrench 32 Nm torque

15 mm wrench 32 Nm torque

1., 2., 3., 4. Horizontal aiming block bolts 5., 6., 7. Vertical aiming block bolts 8., 11. Threaded hole for vertical aiming up to –30° 9., 10. Threaded hole for vertical aiming up to +30° Fig.55 - Antenna aiming block

82

ALS - MN.00164.E - 001

2

1 1

Bolt

2

Earth cable collar Fig.56 - ODU grounding

ALS - MN.00164.E - 001

83

10

INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309)

10.1

FOREWORD

The description concerns pole mounting of ODU, in 1+0 and 1+1 system, using following installation kits: -

V32307

for ODU with frequency from 10 to 13 GHz

-

V32308

for ODU with frequency from 15 to 38 GHz

-

V32309

for ODU with frequency from 7 to 8 GHz

Differences regard the dimensions and the presence of the centring ring (see Fig.57): -

V32307

centring ring for antenna flange from 10 to 13 GHz

-

V32308

centring ring for antenna flange from 15 to 38 GHz

-

V32309

no centring ring (and relevant screws).

10.2

INSTALLATION KIT

Following installation kits are supplied with the equipment depending on different systems.

1+0 system •

60 to 129 mm pole mounting kit: -

centring ring and relevant screws

-

pole system plus antenna (already assembled) and pole fixing brackets

-

1+0 ODU and relevant screws

-

ODU with O–ring and devices for ground connection

1+1 system •

84

60 to 129 mm pole mounting kit: -

centring ring and relevant screws

-

pole system plus antenna (already assembled) and pole fixing brackets

-

1+0 ODU

-

hybrid and relevant screws

-

polarization twist disk and relevant screws

-

2 ODUs with O–rings and devices for ground connection.

ALS - MN.00164.E - 001

10.3

REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

•

N.1 2.5 mm Allen wrench

•

N.1 3 mm Allen wrench

•

N.1 6 mm Allen wrench

•

N.1 13 mm spanner

•

N.2 17 mm spanner.

10.4

INSTALLATION PROCEDURE

Installation procedure is listed below:

1+0 system 1

antenna polarization

2

installation of the centring ring on the antenna

3

installation of 1+0 ODU

4

installation onto the pole of the assembled structure

5

installation of ODU

6

antenna aiming

7

ODU grounding

1+1 system 1

antenna polarization

2

installation of the centring ring on the antenna

3

installation of 1+0 ODU

4

installation onto the pole of the assembled structure

5

installation of hybrid (hot stand-by version) or circulator (frequency diversity version)

6

installation of ODUs

7

antenna aiming

8

ODU grounding.

ALS - MN.00164.E - 001

85

10.5

10.5.1

1+0 MOUNTING PROCEDURES

Setting antenna polarization

Fig.57 – Set the antenna in such a position to operate on its rear side. Locate the four M3 Allen screws around the antenna flange. Unscrew them (use 2.5 mm Allen wrench) and position the antenna flange according on: horizontal wave guide –> vertical polarization, vertical wave guide –> horizontal polarization. Screw again the four Allen screws (torque = 1 Nm).

10.5.2

Installation of the centring ring on the antenna

Fig.57 – Set the antenna in such a position to operate on its rear side. Locate the three holes around the antenna flange. Mount the centring ring onto antenna flange and tight it with the 3 Allen screws M4 (use 3mm Allen wrench, torque 2 = Nm).

10.5.3

Installation of 1+0 ODU

Fig.57 – Mount the onto assembled structure (pole system plus antenna) using the four M8 Allen screws (use 6 mm Allen wrench, torque 18 = Nm). Two of the four screws, diagonally opposed, must be mounted with the two bushes around.

10.5.4

Installation onto the pole of the assembled structure

Fig.57 – Mount the assembled structure on the pole using the two pole fixing brackets and the four M10 screws (use 17 mm spanner, torque = 13 Nm); the heads of the screws are inserted on the antenna side, the four nuts and the springs between nut and brackets are inserted on bracket side.

10.5.5

Installation of ODU (on 1+0 )

Fig.58 – Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–ring by protecting fingers with gloves. Fig.59 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handle can assume the positions shown in the figure depending on the polarization. Position the ODU body near the and align the wave guide of the ODU to the Wave guide of the antenna: respect to the position of wave guide alignment, turn the ODU body approx. 30° counter–clockwise into the and search for matching between reference tooth on the (see Fig.60) and reference tooth on the ODU body. Fig.61 – When alignment of the references teeth is achieved, turn the ODU body clockwise until rotation is stopped. In figure are shown ODU final position for both polarisations. Fig.60 – When ODU positioning is over, secure ODU body on the by tightening bolts (use 13mm spanner, torque = 6Nm).

86

ALS - MN.00164.E - 001

10.5.6

Antenna aiming

Antenna aiming procedure for 1+0 version or 1+1 version is the same. Horizontal aiming: ±5° operating on the 17 mm nut shown in Fig.62 with a 17 mm spanner, only after having loosen the two 17 mm nut on the pivot. Vertical aiming: ±20° operating on the 13 mm nut shown in Fig.62 with a 13 mm spanner, only after having loosen the three 13 mm nut on the pole . Once optimum position is obtained, tighten firmly all the nuts previously loosen.

10.5.7

ODU grounding

ODU grounding is achieved with: •

M8 screw without washers

•

M6 screw with washer

as shown in Fig.63.

10.6

1+1 MOUNTING PROCEDURES

In further page are explained all the mounting step not already discussed in paragraph ”10.5 1+0 MOUNTING PROCEDURES”

10.6.1

Hybrid/circulator installation

Fig.64 (hybrid for hot stand-by version) or Fig.65 (circulator for frequency diversity version) – The polarization twist disk must be always fixed on hybrid/circulator flange. Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–rings by protecting fingers with gloves. Bring the polarization twist disk with the position marker down. Insert the O–ring into polarization twist disk. Vertical polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towards V mark. Horizontal polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towards H mark. Tighten progressively and alternatively the four screws and spring washer with following torque: Tab.15 - Torques for tightening screws Frequencies

Screw

Tool

Torque

from 18 to 38 GHz

Allen screw M3

Allen key 2.5 mm

1 Nm

up to 15 GHz

Allen screw M4

Allen key 3 mm

2 Nm

Fig.67 – Fix hybrid body to 1+0 with four M8 bolts (use 13 mm spanner, torque = 18 Nm), tighten progressively and alternatively the bolts. In case of installation of ODU at the frequency of 13 or 15 GHz, the polarizer disk s the flange of the hybrid with only three screws, as displayed in Fig.66.

ALS - MN.00164.E - 001

87

10.6.2

Installation of ODUs

For both ODUs. Fig.58 – Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring by protecting fingers with gloves. Fig.59 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handle can assume the positions shown in the figure depending on the polarization. Position the ODU body near the and align the wave guide of the ODU to the wave guide of the hybrid/circulator: respect to the position of wave guide alignment, turn the ODU body approx. 30° counter–clockwise and then insert the ODU body into the . For 1+1 system the handle of the ODU is always positioned on the right. The polarization twist disk on the hybrid/circulator matches the antenna polarization. Fig.68 – When alignment of the reference teeth is achieved, turn the ODU body clockwise until the rotation stops. In figure are shown ODUs final position. Fig.60 – When ODU positioning is over, secure ODU body on the by tightening bolts (use 17 mm spanner, torque = 6 Nm). WARNING: Internal codes (e.g. installation items, antennas, PCB) are here reported only as example. The Manufacturer reserves the right to change them without any previous advice. At the end of the installation the system will be as in Fig.68 for hot stand-by version or as in Fig.69 for frequency diversity version.

Four 13mm screws Centring ring (not present in V32309)

Three 3mm Allen screws (not present in V32309)

Antenna

1+0 Two bushes

Fig.57 - 1+0 pole mounting

88

ALS - MN.00164.E - 001

Fig.58 - ODU body reference tooth

Vertical

Horizontal

Fig.59 - Position of the ODU body: 1+0 system - depending on the polarisation. 1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side) 1+1 frequency diversity system - polarisation is always vertical (handle always at the left side)

ALS - MN.00164.E - 001

89

3 1 2

1 5 4

4 1 5

1 2 3 1

6 mm Allen screw

2

Bush (diagonally placed)

3

17 mm Tightening bolts (max torque = 6 Nm)

4

Reference point for horizontal polarization

5

Reference point for vertical polarization Fig.60 - 1+0

90

ALS - MN.00164.E - 001

Right handle for horizontal polarization Left handle for horizontal polarization Fig.61 - ODU final position

Horizontal aiming: two 17mm block screws

Vertical aiming: three 13mm block screws Pole

17mm nut for horizontal adjustment of antenna

Internal 5mm Allen screw for vertical adjustment of antenna

Fig.62 - Antenna aiming

ALS - MN.00164.E - 001

91

2

1 1

Bolt

2

Earth cable collar Fig.63 - ODU grounding

92

ALS - MN.00164.E - 001

7 8 1 2 4

6

5

3

1

O–ring

2

Polarization twist disk

3

Hybrid mechanical body

4

Position marker of twist disk

5

Reference label for twist disk

6

O–ring

7

Allen screws

8

Spring washer Fig.64 - Hybrid and polarization disk

ALS - MN.00164.E - 001

93

7 8 1

2 4

6

5 3

1

O–ring

2

Polarization twist disk

3

Hybrid mechanical body

4

Position marker of twist disk

5

Reference label for twist disk

6

O–ring

7

Allen screws

8

Spring washer Fig.65 - Circulator and polarisation disk

94

ALS - MN.00164.E - 001

Horizontal polarization

Vertical polarization

Fig.66 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)

ALS - MN.00164.E - 001

95

Fig.67 - Hybrid/circulator installation

96

ALS - MN.00164.E - 001

Fig.68 - Installation of 1+1 hot stand-by ODUs

Fig.69 - Installation of 1+1 frequency diversity ODUs

ALS - MN.00164.E - 001

97

11

INSTALLATION ON POLE OF ODU ALS WITH SEPARATED ANTENNA

11.1

TOOLS REQUIRED FOR INSTALLATION

Here below is the list of tools required for installation: •

pole ing kit for 219 mm pole V46000

•

pole ing kit for 114 mm pole V46002

•

pole ing kit for 90 mm pole V46003

•

17 mm open–ended spanner (not supplied)

•

13 mm open–ended spanner (not supplied)

•

10 mm torque wrench (not supplied)

11.2

INSTALLATION PROCEDURE

According with pole diameter use the following pole ing kit: •

218 mm pole V46000

•

114 mm pole V46002

•

90 mm pole V46003

Refer to Fig.73 and Fig.74 (1+1), Fig.75 and Fig.76 (1+0). 1

See Fig.70 – Fix the antenna bend at 90° to the ODU antenna flange of branching inserting the greased O–ring with silicon grease in small quantity (torque wrench 3 mm, screw M4, 2.5 Nm)

2

See Fig.71 – Install the two brackets to branching with two bolts for brackets A and B, without fixing.

3

Mount the collar with the self–locking unit (see Fig.72) on bracket and pole, position them perpendicular to the pole and fix them (M10 32 Nm). Fix correctly the three bolts of branching too (M10 32 Nm). See Fig.73 and Fig.74 (1+1); Fig.75 and Fig.76 (1+0). Install bracket (1) on the pole through collar (2). The collar es through holes (6) of the bracket. The bracket is secured to the pole by means of plain washer (3), spring washer (4) and hexagonal bolt (5). Fix second bracket (16) on ODU branching projection (7) through plain washer (3), spring washer (4) and hexagonal bolt (8).

98

4

Lean pre–assembled structure as per point 3. on the bracket (1) already installed on the pole.

5

Secure bracket (16) on the pole by using second collar (10).

6

Secure the whole ODU body on the pole by fixing bracket (1) to two projections (9) (one for 1+0) of the branching body through plain washer (3), spring washer (4) and bolt (8).

7

Take transceivers (13) (one in the 1+0 system) and put them in place on the branching shell by aligning two coupling pins on the transceiver shell to coupling holes (16) of Fig.77. Fast coupling levers (14) (see Fig.75) move in such a way to facilitate the correct mechanical coupling.

ALS - MN.00164.E - 001

8

Screw knobs (15) first by hands and then using 10 mm torque wrench to tighten the two mechanical bodies (branching and transceiver). Warning: set torque wrench to 4 Nm.

9

If equipment has a frequency > 10 GHz the antenna bend at 90° to connect the antenna is fixed to branching with quick lock flange connection. You may insert it also later after the final connection to the pole (see Fig.78). Installation of two ODU 1+0 using the two antenna polarizations may be done in the way shown in Fig.79.

10 Connect the grounding cord to projection (≤25 mm2) (15) of Fig.74 or Fig.76 from bolt (M8 18 Nm) provided from the branching. Use a proper bug, adequate to the cable section and with fixing hole Ø 8.2 mm. Insert bolt, washer and bug in the proper order. See Fig.80. 11 See Fig.81, Fig.82 and Fig.83. Use the six calibrated screws of pole ing kit to connect the wave guide between ODU and antenna in the proper polarization. that flange O–ring are inserted correctly, a bit greased without making dirty the flanges. Don’t damage them by fixing. 12 Fix the flexible wave guide to the pole with the proper locks. 13 Insert on ODU–IDU connecting cable the proper connector for outdoor use (N male). 14 Connect the N female connector of ODU to the above–said cable. 15 Insert the coax cable into a grounding kit near to the ODU. 16 Connect the grounding kit cable to the ground centre of the structure. 17 Label the cable with carefulness. 18 Mount the sun–screen with the four screws and relevant bushes (see Fig.84). 19 Check ODU operation using local loops. 20 After checking on both stations proceed to antenna aiming.

ALS - MN.00164.E - 001

99

Antenna bend at 90°

O-ring N. 4 screw M4 2.5 Nm Allen wrench 3 mm

Antenna bend at 90°

O-ring N. 4 screw M4 2.5 Nm Allen wrench 3 mm

Fig.70 - ODU 1+1 and 1+0

100

ALS - MN.00164.E - 001

17 mm open-ended spanner Bolt M10 32Nm

Bracket A

Bracket B

ODU grounding point

17 mm open-ended spanner Bolt M10 32Nm

Bracket A

Bracket B

ODU grounding point

Fig.71 - ODU 1+0 and 1+1

ALS - MN.00164.E - 001

101

Fig.72 - Collar mounting ODU 1+0 and 1+1

102

ALS - MN.00164.E - 001

14 15

3

13

1

4

5

2

Fig.73 - Side view (1+1)

7

16

12

10

3

4

8

4

8

11

6

9

3

1 15

Fig.74 - Rear view (1+1)

ALS - MN.00164.E - 001

103

14

15

3

4

5

2 1

13

Fig.75 - Side view (1+0)

7 12 16 10

11 9 3

4

8

3

4

8

6

15

Fig.76 - Rear view (1+0)

104

ALS - MN.00164.E - 001

16

16

Fig.77 - Details for transceiver mounting on the branching shell

Fig.78 - Antenna bend

ALS - MN.00164.E - 001

105

Pole Φ 114 mm n.1 ODU 1+0

n.1 ODU 1+0

Fig.79 - ODU installation (top view and front view)

13 mm open-ended spanner Spring washer Plain washer Lug Plain washer

Fig.80 - Grounding cord connection

106

ALS - MN.00164.E - 001

Wave guide

13 mm open-ended spanner

Grounding cable ≥ 25 mm2 Cellflex 1/4" Ground Grounding kit for cable cellflex 1/4"

Fig.81 - Wave guide fixing, cable connection

ALS - MN.00164.E - 001

107

Pol. V

Pol. H

Wave guide Guide lock Antenna tie-rods (if provided)

.Grounding cable ≥ 25 mm2 Ground

Grounding kit for cable Cellflex

Cellflex 1/4"

Ground lug

Fig.82 - Installation on pole of the outdoor unit (1+0)

108

ALS - MN.00164.E - 001

Pol. V

Pol. H

Antenna tie-rods (if provided)

Wave guide

Guide lock

Ground kit Cellflex cable

Grounding cable ≥ 25 mm2 Cellflex 1/4" Ground Ground lug

Fig.83 - Installation on pole of 3 m antenna of two ODU using two polarization

Fig.84 - Sun–screen

ALS - MN.00164.E - 001

109

12

INSTALLATION ON POLE OF THE ODU ALS WITH INTEGRATED ANTENNA

12.1

FOREWORD

The installation on pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.

12.2

NEEDED TOOLS

Set of accessories supplied: •

pole ing kit (V52000)

•

alignment regulating kit (V00501)

•

integrated antenna

•

ODU to antenna connecting kit (V52004–V520093)

•

17 mm open–ended spanners (not supplied)

•

3 mm allen wrench (not supplied)

•

22 mm open–ended spanner (not supplied)

•

27 mm open–ended spanner (not supplied)

•

10 mm torque wrench (not supplied)

•

n° 1 Phillips screwdriver (not supplied).

12.3

INSTALLATION PROCEDURE

Warning: If required each attached figure shows the maximum tightening torque for the screw tightening. Proceed as listed below:

3

110

1

Fig.85 – that the antenna is polarised according to the requirements, by comparing it to the mentioned figure. Otherwise, unscrew the four screws (2) and rotate by 90 degrees the body of the feed (1). The four screws (2) are to be fastened at the centre of the elliptic slot that allows the polarisation to be fine–adjusted within ± 3 degrees.

2

Fig.86 – Set the antenna in such a position as to be able of working on its rear side.

3

Fig.86 – Take out from the unit to antenna connection kit the mechanical details shown in the figure. Apply the O–rings of the trunk (2) a small quantity of silicon grease N00706 and then mount the trunk on the antenna feed body. In the case of horizontal polarisation mount the twisted wave– guide trunk.

The code changes as function of operating frequency and antenna polarisation.

ALS - MN.00164.E - 001

4

Fig.87 – Take out the pole ing kit. Unscrew the screws (4) and remove the ing bracket (3) from the ing ones (1) and (2).

5

Fig.88 – Install the ing bracket (5) on the antenna (1) rear side by means of the four screws (2), the spring washers (3) into the holes (6).

6

Fig.89 – Install the antisliding collar on the pole.

7

Fig.89 – Install on the pole the ing brackets (5) and (6) by means of two collars (4), a nut (1), a washer (3) and a spring washer (2). Position the brackets (5) and (6) aligned with the direction (7) of the radio beam and then tighten them to the pole in a permanent way.

8

Fig.90 – Fix the antenna to the pole inserting the pin (4) of the ing bracket (2) into the pivot (8) of the ing bracket (1) and tighten lightly by means of the screws (7), spring washers (5), washers (6).

9

Fig.90 – Unscrew the nut (3) fixed on the plate (2). Take the pins (1) and position them as shown in the mentioned figure. Screw again the nut (3) till to have the plate (2) at beating ready to be clamped by means of the screw (4).

10 Fig.92 (for 1+1 branching); Fig.93 (for 1+0 branching) – Place the branching projections (11) on the bracket (1). Insert the screws (4), the spring washers (5), washers (6) without tighten them to the end. Conduct the branching so long as the two pins of the branching flange fit in the corresponding holes of the antenna flange. Warning: Before securing the two flanges via coupling ring (7) it is compulsory to apply some silicon grease N00706 on the ring thread. Terminate by tightening screws (4). 11 Fig.94 (1+1) and Fig.95 (1+0) – Take transceivers (1) and put them in place on the branching shell by aligning two coupling pins on the transceiver shell to coupling holes (10) of Fig.92 (1+1) and Fig.93 (1+0). Fast coupling levers (2) move in such a way to facilitate the correct mechanical coupling. 12 Fig.94 (1+1) and Fig.95 (1+0) – Screw knobs (3) first by hands and then using 10 mm torque wrench to tighten the two mechanical bodies (branching and transceiver). 13 Fig.92 – Tighten to end screws (4). 14 Fig.94 (1+1) and Fig.95 (1+0) – Connect the grounding cord to projection (4) accessible on the branching body (5) rear side, and tights it through M8 bolt an relevant plain an spring-washers. 15 Fig.98 – Put the covering shield in place and secure it to the branching body through the four wing screws making part of the covering. Note: In case of transceiver removal to get access to transceiver fixing knobs it is necessary:

12.4

-

loose the covering wing screws

-

lift the covering up, pull it backward and then lower it down to put it in place.

ANTENNA ALIGNMENT

The antenna alignment devices allow to perform the following adjustments with respect to the starting aiming position: -

horizontal:

± 15°, operating on the nut (3) shown in Fig.96, only after having loosen the screws (2)

-

vertical

± 20°, operating on the nut (1) shown in Fig.97, only after having loosen the screws (2)

-

polarisation

± 3°, unscrewing the four screws (2) shown in Fig.99, remove the screw (4) and loosen the other four screws (3). Turn then the antenna feed body till to optimise the polarisation. Tighten the four screws (2) the four ones (3) and the screw (4).

Once the optimum aiming position is obtained, tighten firmly the four nuts (3) shown in Fig.96 for the horizontal adjustment and the four nuts (1) shown in Fig.97 for the vertical one. After tightening the screws, it is possible to recover the fine alignment kit for further aims.

ALS - MN.00164.E - 001

111

a

1

Antenna feed

2

No. 4 M4x14 screws

a

Vertical polarisation

b

Horizontal polarisation

b

Fig.85 - Checking the antenna polarisation

112

ALS - MN.00164.E - 001

1

Antenna feed

2

Wave guide trunk straight or twisted

3

N° 5 M4x14 screws

4

N° 5 flat washers

5

N° 5 spring washers

6

Drain holes Fig.86 - Rear view of the antenna

ALS - MN.00164.E - 001

113

7

1

ing bracket

2

ing bracket for pole installation

3

ing bracket

4

No. 4 screws

5

No. 4 spring washers

6

No. 4 flat washers

7

Teflon washer Fig.87 - Pole ing kit

114

ALS - MN.00164.E - 001

1

Antenna

2

No. 4 M10x20 screws (max torque = 45 Nm)

3

No. 4 spring washers

4

Drain holes

5

ing bracket

6

Fixing holes

7

Wave–guide trunk

8

Quick–coupling flange Fig.88 - ing bracket mounting on the antenna rear side

ALS - MN.00164.E - 001

115

3

4 2

1

5

1

Pole mounting collars

2

ing bracket

3

Pole mounting ing bracket

4

Radio beam direction

5

Antisliding collar Fig.89 - ing bracket mounting

116

ALS - MN.00164.E - 001

1

ing bracket

2

ing bracket

3

Antenna

4

Pin

5

No. 4 spring washers

6

No. 4 flat washers

7

No. 4 M10x25 screws (max torque = 45 Nm)

8

Pivot Fig.90 - Antenna fixing to the pole

ALS - MN.00164.E - 001

117

1

Pin

2

Plate

3

Alignment adjustment nut

4

M6 screws Fig.91 - Alignment adjustment kit mounting

118

ALS - MN.00164.E - 001

10

10

1

ing bracket

2

Wave–guide trunk

3

1+1 branching

4

No. 4 screws

5

No. 4 spring washers

6

No. 4 flat washers

7

Quick–coupling ring with hexagonal nut for tightening (f ≤15 Ghz, max torque = 25 Nm; f ≥18 Ghz, max torque = 20 Nm)

8

O–ring

9

ODU flange

10 Coupling holes 11 Branching projections Fig.92 - 1+1 branching mounting on ing bracket

ALS - MN.00164.E - 001

119

10

1

ing bracket

2

Wave–guide trunk

3

1+0 branching

4

No. 3 screws

5

No. 4 spring washers

6

No. 4 flat washers

7

Quick–coupling ring with hexagonal nut for tightening (f ≤15 Ghz, max torque = 25 Nm; f ≥18 Ghz, max torque = 20 Nm)

8

O–ring

9

ODU flange

10 Coupling holes Fig.93 - 1+0 branching mounting on ing bracket

120

ALS - MN.00164.E - 001

4

1

Transceiver (number 1 on the left)

2

Fast coupling levers

3

Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm) Fig.94 - ODU mounting in 1+1 configuration

ALS - MN.00164.E - 001

121

4

1

Transceiver

2

Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm) Fig.95 - ODU mounting in 1+0 configuration

122

ALS - MN.00164.E - 001

1

Fixed pin

2

Screws

3

Nut for horizontal alignment adjustment Fig.96 - Horizontal alignment adjustment

ALS - MN.00164.E - 001

123

1

Nut for vertical alignment adjustment

2

Screws Fig.97 - Vertical alignment adjustment

124

ALS - MN.00164.E - 001

1

Shield

Fig.98 - Outdoor unit with covering

ALS - MN.00164.E - 001

125

4

1

Antenna feed

2

No. 4 screws

3

No. 4 screws

4

No. 1 screws Fig.99 - Checking the antenna alignment

126

ALS - MN.00164.E - 001

12.5

INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS

The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrier on horizontal path. One carrier can have a traffic of one STM–1 for a total of 2xSTM–1 or 2xSTM–1 for a total of 4xSTM–1 traffic. For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functionalities some care shall be taken for IDU–ODU cabling.

Antennas The antennas will be double polarization antennas.

RF channel RF channel shall be the same for vertical polarization path and horizontal polarization path.

J0 J0 SOH byte shall be different on vertical polarization path and horizontal polarization path.

ATPC Low ATPC level shall be 15 dB higher than BER 10–6 threshold (see chapter “23 SYSTEM CHARACTERISTICS”).

IDU–ODU cable The IDU–ODU cable length difference shall be: •

•

Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.100 and Fig.101) shall not differ more than: -

3 meters for 2xSTM1 links 32QAM

-

3 meters for 2xSTM1 links 128QAM

-

1,5 meters for 4xSTM1 links 128QAM

IDU RIM to RIM cable. The cables RIM1A to RIM1B and RIM2A to RIM2B shall be SMA to SMA cables – F01693 and connected as Fig.102 and Fig.103.

Additional notes On ALS with XPIC some manual operations create other manual operation, for more information please refer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)”. On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more information please refer to chapter “19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC”.

ALS - MN.00164.E - 001

127

RT1A

RT2A

RT1B

RT2B

RIM1A RIM1B RIM2A RIM2B Fig.100 - IDU-ODU cables

RT1A

RT1B

RIM1A RIM1B Fig.101 - IDU-ODU cables

-

+

ON

ON

ON

+

ON

-

FAIL 1

2

3

4

W.S.1

W.S.2 R

V11 IDUODU

Q3 LCT

RS232

X

X

TEST REM

IN/OUT

X

X

Fig.102 - XPIC SMA to SMA cables

STM1-1

STM1-2

STM1-3

-

STM1-4

V11

W.S.2

X

X

X

X

X

X

X

X

+

RIM1 RIM2 W.S.1

-

RIM1

+

RIM2

-

RIM1

+

RIM2

-

IDU ODU R

RIM1

RS232

IN/OUT

TEST REM

RIM2

+

Q3 LCT

Fig.103 - XPIC SMA to SMA cables

128

ALS - MN.00164.E - 001

13

INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS

13.1

Frequency reuse

The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrier on horizontal path. One carrier can have a traffic of one STM-1 for a total of 2xSTM-1 or 2xSTM-1 for a total of 4xSTM-1 traffic. For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functionalities some care shall be taken for IDU-ODU cabling. ALS XPIC systems use IDU ALS; ODU can be AS version or ALS version, in accordance with necessity.

13.2

Characteristics

Antennas The antennas will be double polarization antennas.

RF channel RF channel shall be the same for vertical polarization path and horizontal polarization path.

J0 J0 SOH byte relevant to vertical polarization path shall be different from the one relevant to horizontal polarization path.

ATPC Low ATPC level shall be 15 dB higher than BER 10-6 threshold (see chapter “23 SYSTEM CHARACTERISTICS”).

IDU-ODU cable The IDU-ODU cable length difference shall be: •

Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.104 and Fig.105) shall not differ more than: -

3 meters for 2xSTM1 links 32QAM

-

3 meters for 2xSTM1 links 128QAM

-

1,5 meters for 4xSTM1 links 128QAM

ALS - MN.00164.E - 001

129

•

IDU RIM to RIM cable. The cables: -

RIM1A to RIM1B

-

RIM2A to RIM2B

shall be SMA to SMA cables - F01693 and connected as Fig.106 and Fig.107.

Additional notes On ALS with XPIC some manual operations create other manual operation, for more information please refer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)”. On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more information please refer to chapter “19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC”.

RT1A

RT2A

RT1B

RT2B

RIM1A RIM1B RIM2A RIM2B Fig.104 - IDU-ODU cables

RT1A

RT1B

RIM1A RIM1B Fig.105 - IDU-ODU cables

130

ALS - MN.00164.E - 001

ON

2

3

W.S.1

4

W.S.2 R Q3

LCT

RS232

IN/OUT

V11 IDU ODU

REM

TEST

X

X

X

X

-

+

ON

ON 1

+

ON FAIL

-

Fig.106 – Connection cables

STM1-1

STM1-2

STM1-3

-

STM1-4

V11

W.S.2

X

X

X

X

X

X

X

X

+

RIM1 RIM2 W.S.1

-

RIM1

+

RIM2

-

RIM1

+

RIM2

-

IDU ODU R

RIM1

RS232

IN/OUT

TEST REM

RIM2

+

Q3 LCT

Fig.107 – Connection cables

ALS - MN.00164.E - 001

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14

ODU AS SUBSTITUTION FOR 1+1 FREQUENCY DIVERSITY SYSTEM

14.1

1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU

In 1+1 frequency diversity system the separation of an ODU from circulator causes a service interruption on the other ODU too. The following procedure must be followed order to avoid this interruption (see Fig.108):

132

1

locate the ODU (1) to substitute, loose the bolts (4), insert the guillotine shutter (3) in the slot (2) until the end

2

rotate and extract the ODU (1) as usual (see “System Installation” chapter)

3

insert the new ODU as usual (see “System Installation” chapter)

4

extract the shutter (3) from slot (2), tighten the bolts (4).

ALS - MN.00164.E - 001

4

1

2

3 4

1

ODU to be substituted

2

Slot

3

Guillotine shutter

4

Bolts (6 Nm torque) Fig.108 - Substitution of ODU in 1+1 frequency diversity system

ALS - MN.00164.E - 001

133

134

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Section 3. LINE-UP AND MAINTENANCE

15

PROGRAMMING AND SUPERVISION

15.1

GENERAL

The radio equipment was designed to be easily programmed and supervised. The following tools are implemented to the purpose: •

SCT Subnetwork Craft Terminal + LCT Local Craft Terminal. They are used for remote and local control of a subnetwork consisted of a maximum of 100 equipment.

•

NMS5-UX Network Management. It is used for the remote control of an entire network consisted of different SIAE equipment.

For details refer to relevant documentation. SCT/LCT documentation is available as help on-line.

ALS - MN.00164.E - 001

135

16

LINE-UP OF THE RADIO HOP

16.1

LINE-UP OF THE RADIO HOP

The line-up consists of the following steps: •

on site radio terminal installation (perform connections and ODU installation as described in the relevant chapters)

•

equipment switch-on (operate the ON/OFF switch on the IDU front)

•

antenna alignment for maximum received RF signal level

•

network element configuration

•

check measurements.

16.1.1

Antenna alignment and received field measurement

Purpose of antenna alignment is to maximize the RF received signal level. Proceed as follows: •

connect a multimeter to BNC connector on the ODU for AGC measurement

•

adjust antenna pointing as soon as the maximum AGC voltage value is achieved.

16.1.2

Network element configuration

A factory default address is assigned to each network element that must normally be re-configurated on site following the network rules. To the purpose it is required to connect the PC, where the SCT/LCT program has been installed, to the network interface port. This has to be done via serial cable (connector RS232) or USB cable (connector LCT). Warning: the checks that follow require a good knowledge of the program use. The description of each menu and relevant windows are given by the program itself as help on line. Run the program and perform the connection to equipment by choosing from menu “Option” the connection made via serial cable or via LAN. Perform the to the equipment by entering: 4

•

Equipment IP address

•

ID (default: SYSTEM)

•

(default: SIAEMICR)

Proceed to re-configurate the network element according with the following procedure:

4 If the Ethernet interface IP address is not known, select the serial cable connection where the IP address is shown automatically.

136

ALS - MN.00164.E - 001

•

IP Address: select menu “Equipment” from the menu bar and then Communication Setup->Port Configuration. Enter the required port addresses in the available communication ports. Press ? for details.

•

Routing Table and Default Gateway: select menu “Equipment” from the menu bar and then Communication Setup-> Routing Table: enter the routes or default gateway if necessary. Press ? for details. Warning: the routing policy depends on the routing type: manual IP/OSPF/Is-IS. The relevant routing rules must be normally given by network .

•

Remote Element Table: select menu “Tools” from menu bar and then Subnetwork Configuration Wizard. Station name and remote element table must be assigned following description of the contextual help on-line (?).

•

Agent IP Address: select menu “Equipment” and then “Properties”. Assign the address in accordance to the address of the remote element you want to reach.

16.1.3

Radio checks

It is advisable to perform the following measurements to check the correct operation of the radio hop. To the purpose make use of the SCT/LCT program and relevant help on line. The measurements list of the following: •

transmitted power

•

received power

•

RF frequency

•

BER measurement.

All these checks make use of the SCT/LCT program. •

•

Transmitted power, received RF level, RF frequency -

Run SCT/LCT program and then perform the connection to the equipment you want to check.

-

Make double click on the select equipment until main RADIO window is shown.

-

On top of the window Tx/Rx power and frequency values are displayed. In case of Tx power and frequency setup proceed to Branch 1/2 and Power/Frequencies submenus.

BER measurement -

RUN SCT/LCT program and then perform the connection to the equipment you want to check.

-

Make double click on the selected equipment until main RADIO window is shown.

-

On the left side select BER 1/2 measure. In alternative it is possible to use the PRBS function if one line is free.

-

Perform the BER measurement and check that values comply with the requirements.

ALS - MN.00164.E - 001

137

16.2

LASER FUNCTIONALITY TEST

16.2.1

Switch-on procedure

•

Connect input to output with a fibre optic cable

•

Program and look for STM-1 East/West window

•

Click on STM-1 West (East) of LCT program until relative window is displayed

•

Set Automatic Shut-down to “auto” mode into SCT/LCT program

•

Check that Led “ON" is ON.

In case of opposite situation is shown, wait for expiration of "x" time present in "Auto Restart Time" box (range from 60 to 300 sec.). Note: The laser is switched on every "x" seconds for 2 seconds thus permitting the opposite side laser to receive and consequently the two transmitters to be switched on. If faster laser switch-on is required, set "automatic shutdown" to "manual" mode and then press "restart" to send immediately the switch-on control. Note: if laser power measurement is required, set "automatic shut-down" to "test" mode, preset test time from 2 to 100 sec. and then press "Restart" to activate the test.

16.2.2

Automatic laser shut-down check

•

Set automatic shut-down to “auto” mode

•

Remove the optical cable from Rx West (East) side the optical cable and check that Led “ON” goes off.

16.3

LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMS WITH XPIC (IDU ALS)

Line-up consists of the following steps: •

Line-up of radio hop (as described in relevant chapter)

•

Additional line-up operations for XPIC

16.3.1

Additional line-up operations for XPIC

Additional line-up steps are:

138

1

Check fade margin on both paths (horizontal or vertical) while making the fade margin on one path the other should be switched off. Measurements shall be done both ends.

2

decoupling between Tx vertical and receiver horizontal and vice-versa, switching off the transmitter relative to Rx, see Fig.109. -

Step 1: Tx (H) off into side B, Tx (V) into side B decoupling to Rx (H) into site A

-

Step 2: Tx (V) off into site B, Tx (H) into site B decoupling to Rx (V) into site A

ALS - MN.00164.E - 001

-

Step 3: Tx (H) off into side A, Tx (V) into side A decoupling to Rx (H) into site B

-

Step 4: Tx (V) off into side A, Tx (H) into side A decoupling to Rx (V) into site B.

3

Connect everything to have normal operation with XPIC

4

Start from everything perfectly running: -

set ATPC off on all Tx

-

set Tx maximum power in all transceiver

-

insert an attenuation equal to antenna XPD. Practically decrease output power of 17 dB on a transmitter by SCT/LCT. that in this situation the corresponding receiver doesn’t have errors. To XPIC functionality, disconnect XPIC Rx cable and that there are errors in the receiver. Restore output power of Tx. Do the same on all receivers.

Site A

Site B

Tx

Tx

Rx

Rx

Tx

Tx

V

V

H

H Rx

Rx

Fig.109 – Decoupling - Step 1

16.4

NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)

On ALS with XPIC some manual operations create automatically other manual operations. The purpose is to give a correct functionality of loop IF, loop RF and save traffic on the other path where there is no forcing.

16.4.1

Management of automatic manual operations

The manual operations discussed into this document are: •

loop RF

•

loop IF

•

carrier only

•

Tx off

•

RT PSU off.

ALS - MN.00164.E - 001

139

16.4.2

Automatically activated manual operations

For configuration with XPIC in systems 1+0 the Tab.16 details for any manual operation which are the automatically activated manual operations in local equipment and remote equipment.

Tab.16 – Configuration: XPIC 1+0 Local terminal

140

Remote terminal

Manual operation

Automatically activated manual operation

Automatically activated manual operation

Radio-1A Loop RF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio -1A transmitter off

Radio-1B Loop RF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio -1B transmitter off

Radio-1A Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio -1A transmitter off

Radio-1B Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio -1B transmitter off

Radio-1A Carrier only

Rim 1B Xpic Input Disable

Radio-1B Carrier only

Rim 1A Xpic Input Disable

Radio-1A Tx off

Rim 1B Xpic Input Disable

Radio-1B Tx off

Rim 1A Xpic Input Disable

Radio-1A RT PSU off

Rim 1B Xpic Input Disable

Radio-1A transmitter off Rim 1B Xpic Input Disable

Radio-1B RT PSU off

Rim 1A Xpic Input Disable

Radio-1B transmitter off Rim 1A Xpic Input Disable

ALS - MN.00164.E - 001

Tab.17 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity Local termination Manual operation

Remote terminal

Automatically activated manual operation

Automatically activated manual operation

Radio-1A Loop RF

Rim Rim Rim Rim

1A 2A 1B 2B

Xpic Xpic Xpic Xpic

Input Input Input Input

Disable Disable Disable Disable

Radio-1A transmitter off Radio-2A transmitter off

Radio-2A Loop RF

Rim Rim Rim Rim

1A 2A 1B 2B

Xpic Xpic Xpic Xpic

Input Input Input Input

Disable Disable Disable Disable

Radio-1A transmitter off Radio-2A transmitter off

Radio-1B Loop RF

Rim Rim Rim Rim

1A 2A 1B 2B

Xpic Xpic Xpic Xpic

Input Input Input Input

Disable Disable Disable Disable

Radio-1B transmitter off Radio-2B transmitter off

Radio-2B Loop RF

Rim Rim Rim Rim

1A 2A 1B 2B

Xpic Xpic Xpic Xpic

Input Input Input Input

Disable Disable Disable Disable

Radio-1B transmitter off Radio-2B transmitter off

Radio-1A Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-2A Loop IF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-1B Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-2B Loop IF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-1A Carrier only

If Tx 1A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2A Carrier only

If Tx 2A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

Radio-1B Carrier only

If Tx 1B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

Radio-2B Carrier only

If Tx 2B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

Radio-1A Tx off

If Tx 1A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2A Tx off

If Tx 2A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

Radio-1B Tx off

If Tx 1B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

Radio-2B Tx off

If Tx 2B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

Radio-1A RT PSU off

ALS - MN.00164.E - 001

Rim 1B Xpic Input Disable

If Tx 1A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

141

Local termination

142

Remote terminal

Manual operation

Automatically activated manual operation

Automatically activated manual operation

Radio-2A RT PSU off

Rim 1B Xpic Input Disable

If Tx 2A local is active: Rim 1B Xpic Input Disable Rim 2B Xpic Input Disable

Radio-1B RT PSU off

Rim 1A Xpic Input Disable

If Tx 1B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

Radio-2B RT PSU off

Rim 2A Xpic Input Disable

If Tx 2B local is active: Rim 1A Xpic Input Disable Rim 2A Xpic Input Disable

ALS - MN.00164.E - 001

Tab.18 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity Local termination

Remote terminal

Manual operation

Automatically activated manual operation

Automatically activated manual operation

Radio-1A Loop RF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-1A transmitter off

Radio-2A Loop RF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2A transmitter off

Radio-1B Loop RF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-1B transmitter off

Radio-2B Loop RF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2B transmitter off

Radio-1A Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-1A transmitter off

Radio-2A Loop IF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2A transmitter off

Radio-1B Loop IF

Rim 1A Xpic Input Disable Rim 1B Xpic Input Disable

Radio-1B transmitter off

Radio-2B Loop IF

Rim 2A Xpic Input Disable Rim 2B Xpic Input Disable

Radio-2B transmitter off

Radio-1A Carrier only

Rim 1B Xpic Input Disable

Radio-2A Carrier only

Rim 2B Xpic Input Disable

Radio-1B Carrier only

Rim 1A Xpic Input Disable

Radio-2B Carrier only

Rim 2A Xpic Input Disable

Radio-1A Tx off

Rim 1B Xpic Input Disable

Radio-2A Tx off

Rim 2B Xpic Input Disable

Radio-1B Tx off

Rim 1A Xpic Input Disable

Radio-2B Tx off

Rim 2A Xpic Input Disable

Radio-1A RT PSU off

Rim 1B Xpic Input Disable

Radio-1A transmitter off Rim 1B Xpic Input Disable

Radio-2A RT PSU off

Rim 2B Xpic Input Disable

Radio-2A transmitter off Rim 2B Xpic Input Disable

Radio-1B RT PSU off

Rim 1A Xpic Input Disable

Radio-1B transmitter off Rim 1A Xpic Input Disable

Radio-2B RT PSU off

Rim 2A Xpic Input Disable

Radio-2B transmitter off Rim 2A Xpic Input Disable

ALS - MN.00164.E - 001

143

17

LINE UP OF ETHERNET LIM

17.1

GENERAL

The argument of the chapter is the line-up of Ethernet traffic in a radio link with Ethernet LIM con SCT/LCT software details referred to Ethernet application. Two configurations for LAN transmission through the radio link are also described. Requirements: •

the radio link is active with all the parameters properly set

•

equipment are set to be reached by supervision

17.2

ETHERNET FUNCTIONALITY

The point to point ALS radio link with Ethernet LIM offers functions of a typical level 2 transparent bridge: •

level 2 QoS management with priority queue control

•

flow control

•

access to carrier through MAC address examination (MAC filtering)

•

VLAN management with VLAN segregation on the carrier

•

Spanning-Tree Protocol management, to avoid undesirable loops in the network

•

Quality of Service (QoS) is managed at level 2 and 3 with 4 priority queues for every port.

The module can accept Ethernet frames up to 1522Bytes, 1632Bytes and/or 12KB (Jumbo Frame, only on LAN1).

17.3

17.3.1

SWITCH CONFIGURATION

Tributary enabling

First step in Ethernet switch configuration is enable the same E1 tributary number on both equipment of the link. Activation of enabled tributaries is performed only when their configuration is the same on local and on remote equipment. Using LCT software, select Base Band, Line Side, Tributary and enable the same tributary on local equipment and on remote equipment by clicking on the tributary activation switch. To enable the configuration select Apply button and subsequently Confirm. Every configuration mistake causes Config mismatch alarm and the unsuccessful enabling of configuration itself.

144

ALS - MN.00164.E - 001

17.3.2

SWITCH GENERAL PARAMETERS

Using LCT software, select Base Band, Line Side, Ethernet Switch, the following card are present: General – set packet size, Max Packet Size, the MAC address duration in address table, MAC Addr. Aging Time (between 15sec. and 63min:45sec.), the sending delay of LinK Loss Forwarding alarm, LLF Histeresys (between 0 and 10 sec.). To enable the configuration select Apply button and subsequently Confirm. Priority – set packets forwarding in output queues, depending on their priority, 802.1P Priority Management, and queue emptying, Scheduling. In Ethernet Switch window are present the command to open the VLAN map, Virtual Lan Configuration, and the level 3 priority management table, PTOS/DS: •

Virtual Lan Configuration – In the VLAN map can be added the VLAN ID of all the Virtual LAN that enter the switch, which ports can be crossed by them and how manage the tag after having crossed the port: Enab. Unchanged (tag is not modified), Enab. Untagged (tag is deleted), Enab. Tagged (tag is left), Disabled (port is not crossed).

•

PTOS/DS – In this table every ToS/DS value of input packet is linked to an output queue. If priority tag is not available, the packet is sent to the queue relevant the Default Prority of its input port.

17.3.3

LAN1

Using LCT software, select Base Band, Line Side, LAN1, the following cards are present: Interface – following parameters can be set: Flow Control Full Dplx (Auto, Enable, Disable), Speed/Duplex (Full-Duplex-100M, Full-Duplex-1G, Full-Duplex-1G JUMBO), Full-Duplex-1G JUMBO mode jumps the switch and allows JUMBO frames up to 12KB. Rate Control field limits the port throughput (from 64KB to Full Rate, Disable status included), LLF field selects how to enable Link Loss Forwarding alarm. Lan per Port (802.1Q) – Output port of packets in input from LAN1 can be set Filtering (802.1Q): •

•

Ingress Filtering Check, parameter 802.1Q input filter -

Disable 802-1Q – output port is set in Lan per Port card

-

FallBack – If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the output port is defined in Lan per Port card

-

Secure - If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the packet is dropped.

Frame Egress Mode, output packet VLAN tag management -

Unmodified – VLAN tag of the output packet is not touched, if it is present at the input it remains at the output also, if it is not present at the input it is not added at the output

-

Untagged – the output packet has no tag: if the tag is present at the input, it is removed at the output, if the tag is not present at the input, it is not added at the output

-

Tagged – if the tag is present at the input, it remains at the output, if the tag is not present at the input, the output packet receives the input port default VLAN tag

-

Add Double Tag – A second tag (Provider tag) is added to the output packet while at the input packet of the same port the second tag is removed if recognised as Provider tag

•

Default Vid is the VLAN tag set as default to untagged input packet when the output must be tagged.

•

Force Default Vid if marked, untagged input packets receive the Default Vid as VLAN tag while tagged input packets have its tag overwritten by Default Vid

ALS - MN.00164.E - 001

145

Priority (802.1P): management of priority of packets in output •

•

Priority -

Disable – 802.1P parameter is not considered, the packet goes in the output queue pointed out by Default priority

-

802.1P – 802.1P parameter defines the output priority of packets

-

IpTos – IPToS/DS parameter defines the output priority of packets

-

802.1P- IpTos, 802.1P parameter defines the output priority of packets, in case of its absence, parameter IPToS is evaluated

-

IpTos-802.1P, IPToS parameter defines the output priority of packets, in case of its absence, parameter 802.1P is evaluated

Default priority – for untagged packets with untagged output, is the output queue, for untagged packets with tagged output is the output queue and is the value (from 0 min to 7 Max) written as 802.1P tag

Laser Control – The LASER shutdown can be configured, the transmitter can be checked and the optical plug-in module is recognised. Warning – Don’t look inside optical connector, it’s dangerous for eyes. Spanning Tree – Bridge level 2 functionality can be configured: •

•

Enable -

Disabled, the port does not use Spanning Tree Protocol

-

Bridge1 o Bridge2, the port uses Spanning Tree Protocol (port has not to be set in Full-Duplex1G JUMBO mode) in Bridge1 or Bridge2

Type -

Edge, port does not use Spanning Tree Protocol (there is no redundancy)

-

No Edge, port uses Spanning Tree Protocol (there is redundancy)

•

Priority, from 0, min, to 15, max

•

Path Cost, crossing cost (2000…200000)

17.3.4

LAN2 / LAN3

LAN2 and LAN3 port have the same functions. Using LCT software, select Base Band, Line Side, LAN2 (or LAN3), the following cards are present: Interface – following parameters can be set: Flow Control Full Dplx (Auto, Enable, Disable), Speed/Duplex (Full-Duplex-100M, Half-Duplex-100M, Full-Duplex-10M, Half-Duplex-10M). Rate Control field limits the port throughput (from 64KB to Full Rate, Disable status included), LLF field selects how to enable Link Loss Forwarding alarm. Lan per Port (802.1Q) – Output port of packets in input from LAN2 (or LAN3) can be set Filtering (802.1Q): •

•

Ingress Filtering Check, parameter 802.1Q input filter -

Disable 802-1Q – output port is set in Lan per Port card

-

FallBack – If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the output port is defined in Lan per Port card

-

Secure - If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the packet is dropped.

Frame Egress Mode, output packet VLAN tag management -

146

Unmodified – VLAN tag of the output packet is not touched, if it is present at the input it remains at the output also, if it is not present at the input it is not added at the output

ALS - MN.00164.E - 001

-

Untagged – the output packet has no tag: if the tag is present at the input, it is removed at the output, if the tag is not present at the input, it is not added at the output

-

Tagged – if the tag is present at the input, it remains at the output, if the tag is not present at the input, the output packet receives the input port default VLAN tag

-

Add Double Tag – A second tag (Provider tag) is added to the output packet while at the input packet of the same port the second tag is removed if recognised as Provider tag

•

Default Vid is the VLAN tag set as default to untagged input packet when the output must be tagged.

•

Force Default Vid if marked, untagged input packets receive the Default Vid as VLAN tag while tagged input packets have its tag overwritten by Default Vid

Priority (802.1P): management of priority of packets in output •

•

Priority -

Disable – 802.1P parameter is not considered, the packet goes in the output queue pointed out by Default priority

-

802.1P – 802.1P parameter defines the output priority of packets

-

IpTos – IPToS/DS parameter defines the output priority of packets

-

802.1P- IpTos, 802.1P parameter defines the output priority of packets, in case of its absence, parameter IPToS is evaluated

-

IpTos-802.1P, IPToS parameter defines the output priority of packets, in case of its absence, parameter 802.1P is evaluated

Default priority – for untagged packets with untagged output, is the output queue, for untagged packets with tagged output is the output queue and is the value (from 0 min to 7 Max) written as 802.1P tag

Loop – An electric loop (line side) can be enabled. Spanning Tree – Bridge level 2 functionality can be configured: •

•

Enable -

Disabled, the port does not use Spanning Tree Protocol

-

Bridge1 o Bridge2, the port uses Spanning Tree Protocol (port has not to be set in Full-Duplex1G JUMBO mode) in Bridge1 or Bridge2

Type -

Edge, port does not use Spanning Tree Protocol (there is no redundancy)

-

No Edge, port uses Spanning Tree Protocol (there is redundancy)

•

Priority, from 0, min, to 15, max

•

Path Cost, crossing cost (2000…200000)

17.3.5

PORT-A / PORT-B

Depending on link configuration (point to point or East/West) one (PORT-A) or two internal ports (PORT-A and PORT-B) are available. Consequently, using LCT software, select Base Band, Line Side, PORT-A (or PORT-B), the following cards are present: Interface – Port can be enabled or not. Lan per Port (802.1Q) – Output port of packets in input from PORT-A (or PORT-B) can be set Filtering (802.1Q): •

Ingress Filtering Check, parameter 802.1Q input filter -

Disable 802-1Q – output port is set in Lan per Port card

-

FallBack – If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the output port is defined in Lan per Port card

ALS - MN.00164.E - 001

147

•

Secure - If VLAN tag of input packet matches with those defined in VLAN map, the output port is defined in VLAN map, if VLAN tag does not match or is not present, the packet is dropped.

Frame Egress Mode, output packet VLAN tag management -

Unmodified – VLAN tag of the output packet is not touched, if it is present at the input it remains at the output also, if it is not present at the input it is not added at the output

-

Untagged – the output packet has no tag: if the tag is present at the input, it is removed at the output, if the tag is not present at the input, it is not added at the output

-

Tagged – if the tag is present at the input, it remains at the output, if the tag is not present at the input, the output packet receives the input port default VLAN tag

-

Add Double Tag – A second tag (Provider tag) is added to the output packet while at the input packet of the same port the second tag is removed if recognised as Provider tag

•

Default Vid is the VLAN tag set as default to untagged input packet when the output must be tagged.

•

Force Default Vid if marked, untagged input packets receive the Default Vid as VLAN tag while tagged input packets have its tag overwritten by Default Vid

Priority (802.1P): management of priority of packets in output •

•

Priority -

Disable – 802.1P parameter is not considered, the packet goes in the output queue pointed out by Default priority

-

802.1P – 802.1P parameter defines the output priority of packets

-

IpTos – IPToS/DS parameter defines the output priority of packets

-

802.1P- IpTos, 802.1P parameter defines the output priority of packets, in case of its absence, parameter IPToS is evaluated

-

IpTos-802.1P, IPToS parameter defines the output priority of packets, in case of its absence, parameter 802.1P is evaluated

Default priority – for untagged packets with untagged output, is the output queue, for untagged packets with tagged output is the output queue and is the value (from 0 min to 7 Max) written as 802.1P tag

Spanning Tree – Bridge functionality can be configured: •

•

Enable -

Disabled, the port does not use Spanning Tree Protocol

-

Bridge1 o Bridge2, the port uses Spanning Tree Protocol (port has not to be set in Full-Duplex1G JUMBO mode) in Bridge1 or Bridge2

Type -

Edge, port does not use Spanning Tree Protocol (there is no redundancy)

-

No Edge, port uses Spanning Tree Protocol (there is redundancy)

•

Priority, from 0, min, to 15, max

•

Path Cost, crossing cost (2000…200000)

17.3.6

SPANNING TREE

Spanning Tree function of entire equipment can be configured. Using LCT software, select Base Band, Line Side, Spanning Tree, the following cards are present: General – Parameters:

148

•

Force Version – Stp 802.1 D or Rapid Stp 802.1w, SPT version

•

Hello Time – generation period of BPDU (Bridge Protocol Data Unit) messages, values are between 1 and 10 sec., recommended 2 sec.

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•

Max Age – values between 6 and 40 sec., recommended 20 sec.

•

Forward Delay – values between 4 e 30 sec., recommended 15 sec.

•

Summary – Spanning Tree status

Bridge1 e Bridge 2 – Depending on link configuration (point to point or East/West) one (PORT-A, Bridge 1) or two internal port, with relevant bridge, are active (PORT-A and PORT-B, Bridge 1 and Bridge 2). Following parameters can be set: •

MAC Address –MAC address relevant to the Bridge

•

Priority – Priority of the switch, from 0, high priority, to 15, low priority.

17.4

17.4.1

CONFIGURATION EXAMPLES

Local LAN1 - Remote LAN1

In this example the network on local LAN1 port is connected with the network at remote LAN1 port. In LAN1 window, Filtering (802.1Q) card, in field Ingress Filtering Check select Disable 802.1Q, in field Frame Egress Mode select Unmodified. Using LCT software, select Base Band, Line Side, LAN1 and PORT-A and perform, on local and on remote equipment, the setting represented in Fig.110 and in Fig.111. LAN1 parameters Speed and Flow control are equal on local and on remote side.

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149

Fig.110 - LAN1 port configuration on local and on remote equipment

150

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Fig.111 - Internal port configuration on local and on remote equipment

17.4.2

Local LAN1 - Remote LAN1, Local LAN2 - Remote LAN2, Segregated

In this example the Ethernet traffic on LAN1 is divided from traffic on LAN2 by means of different VLANs used for radio transport only. Using LCT software, select Base Band, Line Side, LAN1 and PORT-A and perform, on local and on remote equipment, the following configuration: •

LAN1 parameters Speed and Flow control are equal on local and on remote side

•

LAN2 parameters Speed and Flow control are equal on local and on remote side

•

Disable all the output ports in LAN per port 802.1Q card (in LAN1 and in LAN2 card, on local and on remote side)

•

Select Fallback in Ingress Filtering Check, Untagged in Frame Egress mode and set the default VLAN ID, 4001 as VLAN id1, 4002 as VLAN id2, indifferent in PORT-A (card Filtering 802.1Q). Repeat the same on the remote side.

•

In Ethernet Switch select Virtual LAN Configuration and by means of Add command, add the two following lines in Virtual Lan Configuration table (see Fig.112). Repeat the same on the remote side.

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151

Fig.112 - –VLAN table for transmission of two LANs segregated between them

17.5

LIM ETHERNET: GENERAL NOTES ON MANUAL OPERATIONS

In links with LIM Ethernet, in configurations with radio A and radio B concatenated together, in case of manual operations active on one of the two radio, the Controller performs actions in order to protect at least part of the traffic. A manual operation does not affect traffic if the branch, interested by operation, is in stand-by or protected (in Tx and/or in Rx), so capacity reduction will occur only if branch is active (in Tx and/or Rx). The necessary forcing of Tx and/or Rx switches to protect traffic, even if reduced, must be performed by operator before manual operation itself. In order to perform a traffic loop in configuration where radio A and radio B are concatenated together, loops to select are radio A baseband and radio B baseband. If these radios are in 1+1 configuration, the branch active in Rx must be selected in radio A and in radio B.

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17.5.1

1+0 LINK

Tab.19 shows manual operations and relevant effects on traffic Tab.19 - Manual operations and relevant effects on traffic in 1+0 link (ODU AS/ALS) MANUAL OPERATION

NOTES AND PREVENTIVE FORCING

Loop RF radio1A

Traffic reduced: concatenation with radio B only

Loop RF radio1B

Traffic reduced: concatenation with radio A only

Loop IF radio1A

Traffic reduced: concatenation with radio B only

Loop IF radio1B

Traffic reduced: concatenation with radio A only

Loop B B radio1A

Traffic reduced: concatenation with radio B only

Loop B B radio1B

Traffic reduced: concatenation with radio A only

Carrier Only radio1A

Traffic reduction requested by remote due to Rx problems

Carrier Only radio1B

Traffic reduction requested by remote due to Rx problems

Tx off radio1A

Traffic reduction requested by remote due to Rx problems

Tx off radio1B

Traffic reduction requested by remote due to Rx problems

RT PSU off radio1A

Traffic reduction requested by local and remote due to Rx /Tx problems

RT PSU off radio1B

Traffic reduction requested by local and remote due to Rx /Tx problems

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153

17.5.2

1+1 HOT STAND-BY (1 ANTENNA / SPACE DIVERSITY)

Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions are shown in Tab.20 (ODU ALS) and Tab.21 (ODU AS). Tab.20 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU ALS): problems in Rx/Tx occur if manual operation is performed on the active branch MANUAL OPERATION

154

Rx

NOTES AND PREVENTIVE FORCING

Loop RF radio1A

concatenation with radio B only

Loop RF radio2A

concatenation with radio B only

Loop RF radio1B

concatenation with radio A only

Loop RF radio2B

concatenation with radio A only

Loop IF radio1A

1A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop IF radio1A

2A

Forcing: Tx -> 1A; Rx -> 2A

Loop IF radio2A

1A

Forcing: Tx -> 2A; Rx -> 1A

Loop IF radio1A

2A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 2A

Loop IF radio1B

1B

concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop IF radio1B

2B

Forcing: Tx -> 1B; Rx -> 2B

Loop IF radio2B

1B

Forcing: Tx -> 2B; Rx -> 1B

Loop IF radio2B

2B

concatenation with radio A only - Forcing: Tx -> 2B; Rx -> 2B

Loop B B radio1A

1A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop B B radio1A

2A

Forcing: Tx -> 1A; Rx -> 2A

Loop B B radio2A

1A

Forcing: Tx -> 2A; Rx -> 1A

Loop B B radio2A

2A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 2A

Loop B B radio1B

1B

concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop B B radio1B

2B

Forcing: Tx -> 1B; Rx -> 2B

Loop B B radio2B

1B

Forcing: Tx -> 2B; Rx -> 1B

Loop B B radio2B

2B

concatenation with radio A only - Forcing: Tx -> 2B; Rx -> 2B

Carrier Only radio1A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio1B

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2B

Traffic reduction requested by remote in case of Rx problems

Tx off radio1A

Traffic reduction requested by remote in case of Rx problems

Tx off radio2A

Traffic reduction requested by remote in case of Rx problems

Tx off radio1B

Traffic reduction requested by remote in case of Rx problems

Tx off radio2B

Traffic reduction requested by remote in case of Rx problems

RT PSU off radio1A

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2A

Traffic reduction requested by local and remote in case of Rx /Tx problems

RT PSU off radio1B

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2B

Traffic reduction requested by local and remote in case of Rx /Tx problems

ALS - MN.00164.E - 001

Tab.21 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU AS): problems in Rx/Tx occur if manual operation is performed on the active branch MANUAL OPERATION

Rx

NOTES AND PREVENTIVE FORCING

Loop RF radio1A

1A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop RF radio1A

2A

Forcing: Tx -> 1A; Rx -> 2A

Loop RF radio2A

1A

Forcing: Tx -> 2A; Rx -> 1A

Loop RF radio2A

2A

concatenation with radio B only - Forcing: Tx -> 2A; Rx -> 2A

Loop RF radio1B

1B

concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop RF radio1B

2B

Forcing: Tx -> 1B; Rx -> 2B

Loop RF radio2B

1B

Forcing: Tx -> 2B; Rx -> 1B

Loop RF radio2B

2B

concatenation with radio A only - Forcing: Tx -> 2B; Rx -> 2B

Loop IF radio1A

1A

concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop IF radio1A

2A

Forcing: Tx -> 1A; Rx -> 2A

Loop IF radio2A

1A

Forcing: Tx -> 2A; Rx -> 1A

Loop IF radio2A

2A

concatenation with radio B only - Forcing: Tx -> 2A; Rx -> 2A

Loop IF radio1B

1B

concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop IF radio1B

2B

Forcing: Tx -> 1B; Rx -> 2B

Loop IF radio2B

1B

Forcing: Tx -> 2B; Rx -> 1B

Loop IF radio2B

2B

concatenation with radio A only - Forcing : Tx -> 2B; Rx -> 2B

Loop B B radio1A

1A

concatenation with radio B only - Forcing : Tx -> 1A; Rx -> 1A

Loop B B radio1A

2A

Forcing: Tx -> 1A; Rx -> 2A

Loop B B radio2A

1A

Forcing: Tx -> 2A; Rx -> 1A

Loop B B radio2A

2A

concatenation with radio B only - Forcing: Tx -> 2A; Rx -> 2A

Loop B B radio1B

1B

concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop B B radio1B

2B

Forcing: Tx -> 1B; Rx -> 2B

Loop B B radio2B

1B

Forcing: Tx -> 2B; Rx -> 1B

Loop B B radio2B

2B

concatenation with radio A only - Forcing: Tx -> 2B; Rx -> 2B

Carrier Only radio1A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio1B

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2B

Traffic reduction requested by remote in case of Rx problems

Tx off radio1A

Traffic reduction requested by remote in case of Rx problems

Tx off radio2A

Traffic reduction requested by remote in case of Rx problems

Tx off radio1B

Traffic reduction requested by remote in case of Rx problems

Tx off radio2B

Traffic reduction requested by remote in case of Rx problems

RT PSU off radio1A

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2A

Traffic reduction requested by local and remote in case of Rx /Tx problems

RT PSU off radio1B

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2B

Traffic reduction requested by local and remote in case of Rx /Tx problems

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17.5.3

1+1 Frequency Div. (1 antenna / space diversity)

Manual operations, relevant effects on traffic in 1+1 Frequency Div. (1 antenna / space diversity) and preventive actions are shown in Tab.22. Tab.22 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna/space diversity) and preventive actions: problems in Rx/Tx occur if manual operation is performed on active branch

156

MAN. OPERATION

Rx

NOTES AND PREVENTIVE FORCING

Loop RF radio1A

1A

concatenation with radio B only - Forcing: Rx -> 1A

Loop RF radio1A

2A

Forcing: Rx -> 2A

Loop RF radio2A

1A

Forcing: Rx -> 1A

Loop RF radio2A

2A

concatenation with radio B only - Forcing: Rx -> 2A

Loop RF radio1B

1B

concatenation with radio A only - Forcing: Rx -> 1B

Loop RF radio1B

2B

Forcing: Rx -> 2B

Loop RF radio2B

1B

Forcing: Rx -> 1B

Loop RF radio2B

2B

concatenation with radio A only - Forcing: Rx -> 2B

Loop IF radio1A

1A

concatenation with radio B only - Forcing: Rx -> 1A

Loop IF radio1A

2A

Forcing: Rx -> 2A

Loop IF radio2A

1A

Forcing: Rx -> 1A

Loop IF radio2A

2A

concatenation with radio B only - Forcing: Rx -> 2A

Loop IF radio1B

1B

concatenation with radio A only - Forcing: Rx -> 1B

Loop IF radio1B

2B

Forcing: Rx -> 2B

Loop IF radio2B

1B

Forcing: Rx -> 1B

Loop IF radio2B

2B

concatenation with radio A only - Forcing : Rx -> 2B

Loop B B radio1A

1A

concatenation with radio B only - Forcing : Rx -> 1A

Loop B B radio1A

2A

Forcing: Rx -> 2A

Loop B B radio2A

1A

Forcing: Rx -> 1A

Loop B B radio2A

2A

concatenation with radio B only - Forcing: Rx -> 2A

Loop B B radio1B

1B

concatenation with radio A only - Forcing: Rx -> 1B

Loop B B radio1B

2B

Forcing: Rx -> 2B

Loop B B radio2B

1B

Forcing: Rx -> 1B

Loop B B radio2B

2B

concatenation with radio A only - Forcing: Rx -> 2B

Carrier Only radio1A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2A

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio1B

Traffic reduction requested by remote in case of Rx problems

Carrier Only radio2B

Traffic reduction requested by remote in case of Rx problems

Tx off radio1A

Traffic reduction requested by remote in case of Rx problems

Tx off radio2A

Traffic reduction requested by remote in case of Rx problems

Tx off radio1B

Traffic reduction requested by remote in case of Rx problems

Tx off radio2B

Traffic reduction requested by remote in case of Rx problems

RT PSU off radio1A

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2A

Traffic reduction requested by local and remote in case of Rx /Tx problems

RT PSU off radio1B

Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2B

Traffic reduction requested by local and remote in case of Rx /Tx problems

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18

PERIODICAL CHECKS

18.1

GENERAL

Periodical checks are used to check correct operation of the radio equipment without the presence of any alarm condition. The SCT/LCT programs running on the PC are used for the purpose.

18.2

CHECKS TO BE CARRIED OUT

The following checks must be carried out: •

check of the transmitted power;

•

check of the received field strength (the reading must match the value resulting from hop calculations);

•

check of the bit error ratio and the hop performances.

For checking procedures, please refer to SCT/LCT program and relevant help-on line.

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19

TROUBLESHOOTING

19.1

GENERAL

The equipment consists of the following replaceable parts: •

•

ALS SDH with IDU SDH compact -

IDU (ALS-C)

-

ODU AS o ALS

ALS SDH with IDU SDH modular (IDU ALS) -

LIM

-

CONTROLLER

-

RIM

-

ODU.

Purpose of the troubleshooting is to pinpoint the faulty part and replace it with spare. Warning: the replacement of the faulty CONTROLLER module with spare causes the spare CONTROLLER to be re-programmed.

19.2

TROUBLESHOOTING PROCEDURE

Troubleshooting procedure is used both with IDU SDH modular equipment and IDU SDH compact equipment. In case of IDU SDH compact equipment, replace the whole IDU if the troubleshooting detects a failure on one of the following modules: •

LIM

•

CONTROLLER

•

RIM.

Troubleshooting starts as soon as one of the following alarm condition: alarm LED “ON” on the IDU front or alarm messages are displayed by managers SCT/LCT. Two methods are used to troubleshoot the cause of fault: •

loop facilities

•

alarm message processing using the manager SCT/LCT

19.2.1

Loop facilities

The equipment is provided with different loops with the aid to locate the faulty equipment and then the faulty module the equipment consists of. Warning: the majority of loops causes the traffic to be lost.

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The available loops are the following: •

local tributary loops: usually used to test the cables interfacing the equipment upstreams

•

remote tributary loops: usually used to test the two direction link performance making use of an unused tributary (if available).

•

baseband loop: it permits to test the LIM circuits

•

IDU loop: it permits to test the complete IDU

•

RF loop: it permits to test the complete radio terminal

19.2.2

Alarm messages processing

When an alarm condition occurs, the equipment generates a number of alarm messages that appear on the SCT windows ie: log history area and equipment view current alarm. Investigation on the alarm message meaning permits to troubleshoot the faulty module.

Alarm message organisation The alarms (traps) are organized as alarm grouping relevant to a specific functions performed by the equipment. The alarm grouping is available only in the view current alarm submenu. What follows is the list of the alarm grouping: •

COMMON - alarms which are not related to a specific part of the equipment but relevant to the link as DCC radio link alarm or link telemetry fail. If these alarms are ON the link is lost. Investigation must be made on a possible bad propagation or equipment failure. See the condition of the others alarm grouping.

•

LIM - This grouping may generate alarms for the following causes:

•

•

-

external fault: tributary signal loss

-

LIM failure: i.e. loss of the power supply inside the module or clock loss

-

alarm that can be propagated by RIM or ODU modules as baseband Rx alarm. The Baseband loop permits to discover if the cause of this alarm activation is external or internal to the LIM. If yes the module must be replaced.

RIM - This grouping may generate alarms for the following causes: -

external fault: demodulator fail alarm and local ODU alarm are generated when the ODU becomes faulty.

-

RIM failure - power supply alarm along with cable short/open alarms or modulator/demodulator alarms are activated.

RT - This grouping may generate alarms for the following causes: -

external fault: Rx power low alarm is generated given by a bad propagation or by a faulty remote terminal.

-

ODU failure: PSU fail alarm or RF VCO alarm or RT IF alarm is activated. If this happens, replace the ODU.

•

UNIT - This grouping generates alarms when one of the units, the equipment consists of, is faulty or does not respond to the controller polling. Replace the faulty unit.

•

CONTROLLER - There is not an alarm message relevant to a controller module failure. An alarm condition causes Led IDU to steady lights up. Warning: The replacement of controller module requires the spare to be realigned.

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159

19.3

FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC

The Fault Management Procedure (FMP) is used into 1+0 systems with a vertical and an horizontal carrier giving a total traffic of 2xSTM-1 or 4xSTM-1. Purpose of FMP is to identify a malfunction caused by equipment failure and protect radio path horizontal or vertical where there is no problem. FMP will distinguish between alarm coming from external causes (e.g. fading) and alarms coming from a defect into equipment. Tx Power Control can be in Automatic or Manual mode. Low ATPC threshold shall be 15 dB higher than BER = 10-6 Prx level. See chapter "System Characteristics ". FMP is used into 1+0 systems in case of a single hardware failure. In 1+1 systems a single hardware failure is protected by doubled configuration structure. FMP switches off automatically the alarmed path protecting the not alarmed path. Once the decision is taken it is permanent and only an operator with SCT/LCT program or NMSUX can reset the status.

19.3.1

Manual operations activated by FMP

FMP can activate the following manual operations:

160

•

remote Tx off

•

local Xpic disable

•

disable FMP.

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20

EQUIPMENT CONFIGURATION /SAVE/ . PARAMETER MODIFICATION AND CREATION OF VIRTUAL CONFIGURATIONS

20.1

SCOPE

This chapter describes the procedure to create configuration files. Equipment configuration files must be used in case of replacing a faulty CONTROLLER module with the spare. To the purpose it is necessary to , from each equipment the network consists of, equipment configurations and save them on three configuration files. It is advisable to do it upon the first installation. Configuration file on the spare CONTROLLER permits to restore previous operating condition. It is also possible to create virtual configuration without being connected to equipment.

20.2

PROCEDURE

To configure the spare CONTROLLER the following must be ed/saved on the file/ed: •

General equipment configuration

•

Addresses and routing table

•

Remote element table

To do it, run the SCT/LCT program (see relevant documentation available on line) until "Subnetwork Craft Terminal" application window is displayed.

20.2.1

General equipment configuration

and save 1

Select Open Configuration Template from Tools menu following this path: Tools Æ Equipment Configuration Wizard Æ File Æ Open Configuration Template. The system will show Template Selection window.

2

Choose from Template Selection window the type of equipment and version (for instance radio PDH AL: 2x2, 4x2, 8x2, 16x2 Mbit/s) from which you want to make the .

3

Press OK. The system will display the Configuration Wizard window referring to the selected type of equipment and version (example: radio ALS: STM-1)

4

Press push button and select Get Current Type Configuration from Equipment. The system will display the Configuration File window. The window will show the equipment list.

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161

5

Select the equipment you wish to a configuration file from (normally the local equipment) by activating the relevant box.

6

Press OK. The system displays the Communication Status window where is pointed out: -

the operation status: in progress/complete.

-

errors area: where error messages relevant to possible abort of the operation are displayed.

At the end of the operation by pressing OK, the system displays, the ed equipment parameters present into the Configuration Wizard window. 7

Save the ed configuration into a file by selecting Save File As command from File → Save → Save File As. The system will display Save This Config. File. Type the file name into the proper box (with "cfg" extension) and set the path to be used to save the file.

8

Press Save push button to finish.

After having installed the spare LIM proceed as follows: 1

Select Open File from Tools menu following this path: Tools menu → Equipment Configuration Wizard → File → Open → Open File. The system will display Select a Config. File window.

2

Select the wanted file and open it by pushing Open push button. The system will display the file content.

3

Press push button and select Configure Equipment as Current File.

4

Activate the box relevant to the equipment you wish to configuration file to (normally the local equipment) and select Configure Equipment as Current File.

5

Press OK. The system displays the Communication Status window where is pointed out:

6

-

the operation status: in progress/completed

-

errors area: where error messages relevant to possible abort of operation are displayed.

Press OK to finish.

20.2.2

Addresses and routing table

and save

162

1

Select Open Address Configuration Template from Tools menu following this path: Tools menu → Equipment Configuration Wizard → File → Open → Open Address Configuration Template. The system will show the mask of the Address Configuration Template.

2

Press push button and select Get Current Type Configuration from Equipment. The system will display the Configuration File window.

3

Select the equipment you wish to a configuration from (normally the local equipment).

4

Press OK. The system displays the Communication Status window where is pointed out: -

the operation status: in progress

-

errors area: where error messages relevant to possible abort of the operation are displayed.

ALS - MN.00164.E - 001

At the end of the operation, the system displays, the equipment parameter present into the Configuration Wizard window. 5

Save the ed configuration into a file by selecting Save File As command from File → Save → Save File As The system will display the Save This Config. File window. Into the proper boxes type the file name (with "cfg" extension) and set the path to be used to save the file.

6

Press Save push button to finish.

1

Select Open File command from Tools menu following this path: Tools → Equipment Configuration Wizard → File → Open → Open File. The system will display Select a Config. File window.

2

Select the wanted file and open it by pushing Open push button. The system will display the parameters contained into the file.

3

Press push button and select Configure Equipment as Current File.

4

Activate the box relevant to the equipment you wish to configuration file to (normally the local equipment).

5

Press OK.

6

The system will display Type Selection window. Activate boxes IP port addresses configuration e Routing table. If OSPF facility is enabled, you can only select Standard (IP/Communication/OSPF) Settings.

7

Press OK. The system will show a warning indicating the possibility to proceed the or not.

8

Press OK. The system will show the in progress.

9

At the end of the will be shown the file content.

20.2.3

Remote Element Table

and save 1

Select window Subnetwork Configuration Wizard from menu Tools.

2

Select equipment Local from Actual Configuration Area and then press Retrieve. In New configuration area is shown the list of remote equipment included the local.

3

Press Save to file. The system will show window Save remote element configuration file.

4

Save the file with Rel extension and then press Save to finish.

1

Select Subnetwork Configuration Wizard from menu Tool.

2

Press Read from file and then select the desired file (with Rel extension).

3

Press Open push button and then the system will show the file content into the New Configuration Area.

4

Select into the Actual configuration area the equipment you desire to , the list of the remote element included the local.

5

Press Send to send the list.

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21

BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING THE PARAMETERS

21.1

SCOPE

This chapter describes the procedure to back up the full equipment configuration. This permits to recover the original equipment configuration in case of faulty CONTROLLER module replacement with spare.

21.2

CONFIGURATION

Foreword: it is advisable to the configuration during the first installation. Proceed as follows: 1

Select “Equipment Configuration Wizard” from menu "Tools"; "Equipment Configuration Wizard" window will be displayed.

2

Select “” and then “Backup Full Equipment Configuration”; “Template Selection” window will be displayed.

3

Select the correct equipment template (in case of uncorrected choice the backup will be aborted).

4

Press OK and then select the equipment to be ed from “ Configuration File” window.

5

Press OK and then edit the file name from “Save backup as” window.

6

Press Save; “Equipment Configuration Wizard: Complete Backup” window will appear. The window shows dynamically the backup procedure. If everything is OK, at the end of the will appear the word “done” showing the procedure success.

7

21.3

Press OK to finish.

CONFIGURATION

Once the spare LIM has been installed proceed as follows:

164

1

Select “Equipment Configuration Wizard” from menu “Tools”. “Equipment Configuration Wizard” window will be displayed.

2

Select “” and than “Restore Full Equipment Configuration” from Equipment Configuration Wizard. “Select Backup File” window will be displayed.

ALS - MN.00164.E - 001

3

Select the wanted backup file with extension .bku and then press Open. “ Configuration File” window will be displayed.

4

Select the equipment to and then press OK; “Equipment Configuration Wizard: Complete restore” window will be displayed. This window shows dynamically the operation. The word “done” indicates that has been successfully.

5

Press OK to finish.

Warning: In case of EOC alarm proceed to restart the equipment.

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22

ALS - FIRMWARE UPDATE

22.1

INTRODUCTION

This chapter contains the description of the procedure to update ALS radio with SDH firmware. Firmware update IS TRAFFIC AFFECTING: this procedure minimize the duration of traffic interruptions. This procedure is applicable to each equipment of the network: it is presented as a procedure applicable using the SCT/LCT, both from a local connection or from a remote one, but an equivalent procedure may be followed from the NMS5UX management system.

22.2

SYSTEM VERSION OF FIRMWARE

Firmware software modules are described by an object called System version. The system version is made up by a code and a version: SRALSOxy version 0x.0y.0z where X and y are digits describing the release and the last z is the digit regarding the version of the release. Few examples are: SRALSO11 version 01.01.01 SRALSO12 version 01.02.03 Tab.23 – System version composition SRALSOxy (0x.0y.0z)

Version

ALS radio link

E82079

0a.0b.0c

Equipment controller boot (C12080)

N90485

0a.0b.0c

Equipment controller appl.

0a.0b.0c

Fpga_Base_Band (LIM Ed. 01)

0a.0b.0c

Conf_Base_Band (LIM Ed. 01)

0a.0b.0c

Fpga_Base_Band (LIM Ed. 02)

0a.0b.0c

Conf_Base_Band (LIM Ed. 02)

0a.0b.0c

Fpga_Modem (RIM Ed. 01)

0a.0b.0c

Conf_Modem (RIM Ed. 01)

0a.0b.0c

Fpga_Modem (RIM Ed. 02)

0a.0b.0c

Conf_Modem (RIM Ed. 02)

0a.0b.0c

Fpga_Modem (RIM XPIC)

0a.0b.0c

Conf_Modem (RIM XPIC)

E82076

0a.0b.0c

Radio boot

N92487

0a.0b.0c

Radio appl.

N90489

0a.0b.0c

Radio Fpga (ALS6, ALS18, ALS23)

N90543

0a.0b.0c

Radio Fpga (ALS13)

N90483

N90508

N90486

N90530

N90533

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ALS - MN.00164.E - 001

22.3

PRELIMINARY CHECKS

Once received from SIAE a new system version, always check inside the "release notes" if the new system version can be applied on the working one directly or if an intermediate step should be performed before. Before starting the upgrade procedure be sure of the status of the equipment to be ed. In the SCT window “Current alarms” the absence of internal alarms, i.e. alarms related to: •

hardware module failures

•

software module failure

•

hardware or software mismatch

•

units not responding

If the is performed on a terminal connected to the SCT via the PPP radio, also the absence of any alarm related to the radio connection, i.e.: •

RX power low

•

TX power low

•

HBER, LBER or EWL.

The presence of any other kind of alarm must in any case be justified and its cause known before proceeding with the procedure. Upgrade should not be performed in presence of alarms. In any case, if any alarm is present, save a Fault Report (using the SCT menu Equipment/Reports/Fault Report) as a reference, to after the upgrade that no further alarms appeared. To assure the possibility to perform a downgrade from the new version back to the old one, you must save all the configuration data (using the SCT configuration wizard) before starting this update. Note: Saving the configuration before proceeding with the of a new version is always recommended, even if downgrade is not foreseen.

22.4

FIRMWARE UPGRADE

A list of necessary steps is provided. Please, be sure to have read previous chapters before performing the upgrade. Note: the order of the paragraphs corresponds to the order to be followed in the upgrade procedure to guarantee the minimum impact on the traffic and the proper behaviour of the equipment.

22.4.1

N90485 - Equipment controller application

In SCT window setup select in Type field Forced. Locate the file als_all_osi.dwl on your PC (in Fig.113 you can see an example of Setup window, please note that the file path in the example may not correspond to the one you have).

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167

Fig.113 – setup window for equipment controller application Press Start to execute the . Confirm the command clicking on Procedure to ? button (see Fig.114) before expiration time.

Fig.114 – Confirm of the operation The ing window (see Fig.115) appears with status.

Fig.115 – progress

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During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in the log window of SCT and new SW release appears in the software unit table of Equipment Software Version window. Important note: if Software Aborted message appears in log window of SCT or if Software Completed message does not appear, the operation has not been properly performed, hence the bench switch must not be done. After the , click on Bench Switch button to switch on the memory bench with the new firmware as in Fig.116.

Fig.116 – Equipment software version window

22.4.2

N90487 - Radio application (first branch)

Warning: This procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1. If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch 2. In setup window select type Only difference or not present/peripheral. Locate the file n90487_0a0b0c -br2A.dwl on your PC (similar to Fig.113). Please note the actual file name has the actual firmware module version (e.g. 01.01.00) instead of 0a0b0c.

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169

In a 1+1 equipment this file refers to radio branch 2. Press Start to execute the . Confirm the command clicking on Proceed to ? button (see Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . This upgrade procedure IS NOT TRAFFIC AFFECTING only if performed on the stand-by branch. After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.3

N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA (first branch)

Warning: This procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1. If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch2. In SCT window setup (similar to Fig.113) select type Only difference or not present/peripheral. Locate the file n90489_0a0b0c_br2A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br2A.dwl (for ALS13) on your PC. Press Start to execute the . Confirm the command clicking on the Proceed to ? button (as in Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.4

N90486 or N90530 - Modem (first branch)

Warning: this procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1. If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch 2. In the SCT window setup (similar to Fig.113) select type Only difference or not present/peripheral. Locate the file n90486_rim2a.dwl on your PC. must always select n90486_rim2a.dwl; the controller will manage the of this file or of the file n90530_*** depending on the version of the controller itself. Press Start to execute the .

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ALS - MN.00164.E - 001

Confirm the command clicking on the Proceed to ? button (as in Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.5

Radio branch switch (1+1 systems only)

Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 1 ES (Errored Second) and 1 SES (Severely Errored Second). OPen ALS LCT, select Radio Switch page and set Branch-2 for both Rx preferential and Tx Preferential fields (see Fig.117).

Fig.117 – Radio switch window Press Apply to perform the new setting. Confirm the command clicking on the Confirm changes? button (as in Fig.114) before expiration time. As a consequence of the Tx switch, some Rx alarms will appear on the remote terminal, on both branches.

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171

22.4.6

N90487 - Radio application - second branch (1+1 system only)

Warning: this procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1. If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch 2. In setup window select type Only difference or not present/peripheral. Locate the file n90487_0a0b0c_br1A.dwl on your PC (similar to Fig.113). In a 1+1 equipment this file refer to radio branch 1. Press Start to execute the . Confirm the command clicking on Proceed to ? button (see Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.7

N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA - second branch (1+1 system only)

Warning: This procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1. If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch 2. In SCT window setup (similar to Fig.113) select type Only difference or not present/peripheral. Locate the file n90489_0a0b0c_br1A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br1A.dwl (for ALS13) on your PC. Press Start to execute the . Confirm the command clicking on the Proceed to ? button (as in Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.8

N90486 or N90530 - Modem - second branch (1+1 system only)

Warning: This procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In 1+1 system, to minimize the impact on traffic the has to be performed on the stand-by branch. In this procedure we assume that initially the working radio branch is branch 1.

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ALS - MN.00164.E - 001

If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch 2. In SCT window setup (similar to Fig.113) select type Only difference or not present/peripheral. Locate the file n90486_rim1a.dwl on your PC. Press Start to execute the . Confirm the command clicking on the Proceed to ? button (as in Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. During , the relevant Status message is present in the log window of the SCT. During the no traffic interruption and no alarm should appear. During the the ing Warning is present in the summary . After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.9

N90486 or N90508 - Baseband

Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 4 ES (Errored Seconds) and 4 SES (Severely Errored Seconds). In SCT window setup (similar to Fig.113) select type Only difference or not present/peripheral. Locate the file n90483.dwl on your PC. In a 1+1 equipment this file refer to radio branch 1. Press Start to execute the . Confirm the command clicking on the Proceed to ? button (as in Fig.114) before expiration time. A window will appear, giving the status of the , similarly to Fig.115. This upgrade procedure IS TRAFFIC AFFECTING (about 4 ES and 4 SES has been observed). After the , the Software Completed message appears in log window of SCT and new SW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.5

FINAL CHECK

When the upgrade procedure is finished, the status of the equipment by opening the SCT Current alarms window and ing the absence of alarms. If before starting the upgrade procedure some alarms were present, compare Current alarms list with the previously saved one. In case of new alarms, the possible cause and check the equipment configuration regarding on previously saved Fault Report.

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173

22.5.1

Downgrade procedure

If any unresolvable problem occurs while running the newly ed version, a downgrade is still possible. This chapter explains how to perform it. If upgrade procedure has been performed step by step, the link works on branch 2, in Tx and in Rx. Downgrade operation can be performed on branch 1 (in stand-by). Note: a complete downgrade may not br necessary to recover the full functionalities of the equipment. In this case you can perform only some of the following steps.

Equipment controller The downgrade of the Equipment Controller firmware is easily done by a simple bench switch (the previously running firmware being still present in the stand-by memory bench.

Radio application (first radio branch) To perform the downgrade of the radio application please follow the procedure of paragraph 22.4.2, selecting the file n90487_br1.dwl from the relevant system version.

Radio FPGA (first radio branch) To perform the downgrade of the radio FPGA please follow the procedure of paragraph 22.4.3 selecting the file n90489_br1.dwl from the relevant system version.

Modem (first radio branch) To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.4, selecting the file n90486_br1.dwl from the relevant version.

Radio application (second radio branch) To perform the downgrade of the radio application please follow the procedure of paragraph 22.4.6, selecting the file n90487_br2.dwl from the relevant system version.

Radio FPGA (second radio branch) To perform the downgrade of the radio FPGA please follow the procedure of paragraph 22.4.7, selecting the file n90489_br2.dwl from the relevant system version.

Modem (second radio branch) To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.8, selecting the file n90486_br2.dwl from the relevant system version.

Baseband To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.9, selecting the file n90483.dwl from the relevant system version.

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Section 4. CHARACTERISTICS AND DESCRIPTIONS SPECIFICATION

23

SYSTEM CHARACTERISTICS

23.1

GENERAL

In this chapter: •

system characteristics, relevant to the whole radio equipment

In the following chapters: •

IDU characteristics

•

ODU characteristics: the following characteristics, relevant to the radio frequency, are included in attached manuals: -

operating band and subbands

-

band number and width of RF filter

-

subdivision of the operating band in different transmitters

-

TX guaranteed characteristics

-

Rx guaranteed characteristics

-

consumption and power supply characteristics

-

losses in branching and flange typology towards antenna or wave guide.

•

description of IDU and its functional modules

•

description of ODU and its functional modules.

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175

23.2

SYSTEM CHARACTERISTICS 5

-

Configuration

-

Modulation

32/128QAM

-

Demodulation

coherent

-

Possible channel schemes (see Fig.118)

adjacent channel polarised (ACAP) adjacent channel co-polarised (AC) co-channel dual polarisation (CCDP)

-

Transmission capacity -

1+0/1+1 Hot Stand-by 1 antenna or 2 antennas/ 1+1 frequency diversity/2+0

Main signal

-

Service channel

-

Interfaces

STM-1 2xSTM-1 4xSTM-1

6

up to 2x2 Mbit/s way side 1x64 kbit/s, V11 contradirectional

-

Line interfaces

STM-1 electrical ITU-T G.703 STM-1 optical I1/S.1.1/L1.1 as per ITU-T G.957 63x2 Mbit/s G.703 6 Ethernet IEEE 802.3 10/100BaseT, 100BaseFx, 6 1000BaseSx or Lx 6

-

STM-1 tributary port impedance

75 Ohm micro coaxial

-

Impedance and 2 Mbit/s trib. port connectors

120 Ohm balanced type D 25 pins

Switching protection

6

-

Switching configuration

1+1 Hot Stand-by or 1+1 frequency diversity

-

Tx switching outage time

≤ 180 ms

-

Rx switching type

hitless

-

Static delay recovery

± 32 bit

-

Dynamic delay recovery

± 16 bit

Frequency reuse with XPIC

6

-

Internal C/I (128 QAM)

1 dB degradation for an internal C/I ≥ 17 dB

-

Internal C/I (32 QAM)

1 dB degradation for an internal C/I ≥ 14 dB

Performance monitoring -

G.828 counters

-

Transmitter and receiver power counters -

176

ES, SES, SEP, BBE, UAS

Received Level and Transmitted Level Threshold Seconds- Number of seconds during whom the received (transmitted power) is below (above) a predefined threshold "n". The number of threshold is 4. The operator can set the threshold value.

5

SDH IDU compact is only 1+0

6

only for SDH IDU modular

ALS - MN.00164.E - 001

-

Received Level and Transmitted Level Tide Mark - The Received (Transmitted) Level Tide Mark is a mechanism that records the maximum and the minimum value reached by RL (TL) during a measurement period.

Environmental conditions -

Temperature range

ETSI EN 300-019

-

IDU

-5°C to +45°C

-

ODU

-33°C to +50°C

-

Relative humidity

93% up to 30°C

-

ODU Weather proofing

as per Recc. IP65

-

EMC (Electromagnetic compatibility)

ETS 300-489-4

Dimensions -

IDU 1U mod./compact (lxhxp)

480x45x260 mm

-

IDU 2U modular (lxhxp)

480x90x260 mm

-

ODU AS 1+0 (lxhxp)

254x254x121 mm

-

ODU AS 1+1 (lxhxp)

358x254x296 mm

-

ODU ALS 1+0 (lxhxp)

165x400x190 mm

-

ODU ALS 1+1 (lxhxp)

316x400x229 mm

Weights of ODU -

ODU AS 1+0

5.5 kg.

-

ODU AS 1+1

15 kg.

-

ODU ALS 1+0

9 kg.

-

ODU ALS 1+1

19 kg.

IDU/ODU AS connection -

Nominal impedance

50 Ohm

-

Coaxial cable

1 cable for 1+0 configuration 2 cables for 1+1 configuration

-

Cable attenuation

<30 dB for 330 MHz

-

Cable return loss

better than 22 dB for 330 MHz

-

Cable max. length

<300 m (1/4” Cellflex cable)

IDU/ODU ALS connection -

Nominal impedance

50 Ohm

-

Coaxial cable

1 cable for 1+0 configuration 2 cables for 1+1 configuration

-

Cable attenuation

<30 dB for 330 MHz

-

Cable return loss

min 22 dB from 100 to 400 MHz

-

Total cable resistance

1,9 Ohm

-

Cable max length

see Tab.24

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177

Tab.24 – Cable examples

SIAE cable code

Max cable length K09212A

K09259

K09217A

K09202

SDH ALS 18-38

300 m

300 m

300 m

550 m

SDH ALS 6-15

200 m

210 m

220 m

550 m

V

V or H

V

H

H

ACAP

AC

CCDP

Fig.118 – Example of channel arrangements on the same route

Tx and Rx switches in 1+1 system Two different configurations are available for ALS 1+1 radio equipment: •

hot stand-by - the controller, depending on precise criteria, manages Rx (hitless) and Tx switches

•

frequency diversity - the controller manages only Rx switch (hitless) because both radio send contemporarly.

Criteria used for switches are listed in Tab.25 and Tab.26. Tab.25 - Tx switch Priority

Level

Alarm

High

1

RIM PSU alarm

2

Manual forcing

3

Cable short alarm

3

Cable open alarm

3

Modulator failure alarm

3

ODU unit failure alarm

3

VCO failure alarm

3

IF unit alarm

3

Tx power low alarm

4

Demand from remote (both remote receivers in HBER)

5

Revertive Tx

Low

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Tab.26 - Rx switch Priority

Level

Alarm

High

1

RIM PSU alarm

2

Manual forcing

3

Cable short alarm

3

Cable open alarm

3

ODU unit failure alarm

3

VCO failure alarm

3

IF unit alarm

3

Demodulator failure alarm

3

BER

4

Early warning

5

Rx Power low alarm

6

CRC pulse

7

Revertive Rx

Low

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24

CHARACTERISTICS OF THE IDU

24.1

GENERAL

The following IDU characteristics are guaranteed for the temperature range from -5°C to +45° C and are the same for IDU ALS and ALS-C, if not differently specified.

24.2

STM-1 ELECTRICAL INTERFACE

Input side -

Bit rate

155520 kbit/s ±20 ppm

-

Line code

CMI

-

Rated impedance

75 ohm

-

Rated level

1 Vpp ± 0.1 V

-

Return Loss

≥15 dB from 8 MHz to 240 MHz

-

Max. attenuation of the input cable

12.7 dB at 78 MHz (

f law)

Output side -

Bit rate

155520 kbit/s ±4,6 ppm

-

Rated level

1 Vpp ±0.1 V

-

Pulsa shape

see mask of Figures 24 and 25 of ITU-T Rec. G.703

24.3

STM-1 OPTICAL INTERFACE

The optical interface can be specialized for different applications, by simply equipping the STM-1 optical interface with the appropriate pluggable transceiver (with LC optical connectors). Information about the presence/absence and type of transceiver is transferred to the main controller. The characteristics of all the possible optical interfaces are summarized in the Tab.27- Possible optical interfaces:

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Tab.27 - Possible optical interfaces

Interf.

Ref.

Launched power (dBm)

Minimum sensitivity (dBm)

Operating wavelength

Transceiver

Fiber

Distance (km)

L-1.2

G.957

0 ... -5

-34

1480-1580

Laser

Single-Mode

Up to 80

L-1.1

G.957

0 ... -5

-34

1263-1360

Laser

Single-Mode

Up to 40

S-1.1

G.957

-8 ...-15

-28

1263-1360

Laser

Single-Mode

Up to 15

I-1

ANSI

-14 ... -20

-28

1263-1360

Led

MultiMode

Up to 2

The LIM is provided with Automatic Laser Shutdown functionality as prescribed by ITU-T G.664 Recommendation.

24.4

2 Mbit/s WAYSIDE INTERFACE

Input side

±50 ppm

-

Bit ate

2048 kbit/s

-

Line code

HDB3

-

Rated impedance

120 Ohm

-

Rated level

2.37 Vp/75 Ohm or 3 Vp/120 Ohm

-

Return loss

12 dB from 57 kHz to 102 kHz 18 dB from 102 kHz to 2048 kHz 14 dB from 2048 kHz to 3072 kHz

-

Max attenuation of the input cable

6 dB according to

-

Accepted jitter

see mask in Table 2, ITU-T Rec. G.823

-

Transfer function

see mask in Figure 1, ITU-T Rec. G.742

-

Output jitter

Rec. G.783 (Table 10.1 (4/97))

f law

Output side -

Bit rate

2048 kbit/s ±50 ppm

-

Rated impedance

120 Ohm

-

Rated level

2.37 Vp/75 Ohm or 3 Vp/120 Ohm

-

Pulsa shape

see mask in Figure 15, ITU-T Rec. G.703

24.5

2 Mbit/s INTERFACE (E1), LIM 2xSTM-1/LIM 4xSTM-1

Input side -

Bit rate

2048 kbit/s ± 50 ppm

-

Line code

HDB3

-

Rated impedance

75 ohm and 120 ohm, depending on used pin

ALS - MN.00164.E - 001

181

-

Rated level

2.37 Vp/75 Ohm or 3 Vp/120 Ohm

-

Return loss

12 dB from 57 kHz to 102 kHz 18 dB from 102 kHz to 2048 kHz 14 dB from 2048 kHz to 3072 kHz

-

Max attenuation of the input cable

6 dB according to

-

Accepted jitter

see mask in Table 2, CCITT Rec. G.823

-

Transfer function

see mask in Figure 1, CCITT Rec. G742

-

Output jitter

Rec. G.783 (Table 10.1 (4/97))

f

trend

Output side -

Bit rate

2048 kbit/s ± 50 ppm

-

Rated impedance

75 Ohm or 120 Ohm

-

Rated level

2.37 Vp/75 Ohm or 3 Vp/120 Ohm

-

Pulse shape

see mask in Figure 15, CCITT Rec. G.703

24.6

182

ETHERNET INTERFACE AND SWITCH CHARACTERISTICS

-

Bit rate

100 Mbit/s or 1 Gbit/s, LAN, 10 Mbit/s or 100 Mbit/s, LAN2 and LAN3

-

WAN throughput

580 Mbit/s max

-

Frame

GFP

-

Concatenation

proprietary

-

Bridge loop avoidance

Rapid STP

-

Optical interface

100BaseFx or 1000BaseSx or 1000BaseLx

-

Optical connector

LC

-

Electrical interface

10BaseT or 100BaseT

ALS - MN.00164.E - 001

Switch characteristics See Tab.28. Tab.28 - Switch characteristics Parameter

Value

Notes

ports (external)

3

2x10/100 + 1x100/1000

WAN ports (internal)

3

Up to 580 Mbit/s

Mode

Half/full duplex Full duplex

For 10/100 electrical Fixed for 100/1000 optical

Address learning capacity

8K

Globally for the switch

MAC aging time

0÷1 hour

15 sec steps software configurable

802.1Q VLANs

Up to 4095

Software configurable

Port based VLAN

Yes/Not

Software configurable

Packet buffer memory

1 Mbit

Globally for the switch

Max frame size

1632 Bytes

Software (standard or extended) Jumbo per LAN1

Ethernet output queue

4

Fixed

Weight queues

Strictly/weighted

Software configurable

QoS

None/802.1p/TOS–DS

Software configurable

Layer 2 flow control

Yes/Not

Software configurable

MDI/MDX (electrical)

Yes/Not

Software configurable

100BaseFx optical interface characteristics -

Fibre type

Multimode 50/125 µm or 62.5/125 µm

-

Transceiver type

Pluggable

-

Connector type

LC

-

Operating distance

up to 2 km

-

Optical center wavelength

1310 nm

-

Optical transmit power

–14 ÷ –22 dBm

-

Receive sensitivity

–29 dBm

-

Average receive power max

–14 dBm

-

Link power budget

7 dB

-

Compliance

100BaseFx as for IEEE 802.3

1000BaseSx optical interface characteristics -

Fibre type

Multimode 50/125 µm or 62.5/125 µm

-

Transceiver type

Pluggable

-

Connector type

LC

-

Operating distance 125 µm)

up to 550 m (50/125 µm) or up to 300 m (62.5/

-

Optical center wavelength

850 nm

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183

-

Optical transmit power

–2 ÷ –9.5 dBm

-

Receive sensitivity

–17 dBm

-

Average receive power max

0 dBm

-

Link power budget

7.5 dB

-

Compliance

1000BaseSx as for IEEE 802.3z

1000BaseLx optical interface characteristics -

Fibre type

Singlemode 9/125 µm

-

Transceiver type

Pluggable

-

Connector type

LC

-

Operating distance

up to 10 km

-

Optical center wavelength

1310 nm

-

Optical transmit power

–3 ÷ –9.5 dBm

-

Receive sensitivity

–19 dBm

-

Average receive power max

–3 dBm

-

Link power budget

9.5 dB

-

Compliance

1000BaseLx as for IEEE 802.3z

24.7

64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11

-

Tolerance

±100 ppm

-

Equipment side

contra-directional

-

Coding

clock and data on independent wire

-

Electrical interface

see Rec. ITU-T V.11

24.8

ALARM INTERFACE

output -

Relay s

normally open (NO) or normally closed (NC)

-

Open s R min.

100 MOhm at 500 Vdc

-

Closed s R max.

0.5 Ohm

-

Switching voltage Vmax

100 V

-

Switching voltage Imax

1A

input

184

-

Equivalent circuit recognized as a closed

200 Ohm resist. (max) referred to -6 V (min)

-

Equivalent circuit recognized as a open

60 kOhm (min) referred to +4 V (max)

ALS - MN.00164.E - 001

24.9

NETWORK MANAGEMENT INTERFACE

AUI interface

6

-

Connector

15 pin SUB–D

-

Connection to LAN

with a branching cable and a transceiver to the Ethernet Thick coaxial cable

-

Protocol

T/IP and IPoverOSI

RJ45 interface -

LAN type

Ethernet Twisted Pair 802.3 10BaseT

-

Connector

RJ45

-

Connection to LAN

direct with a CAT5 Twisted Pair

-

Protocol

T/IP or IPoverOSI

BNC interface

6

-

LAN type

Ethernet thinnet 802.3 10Base2

-

Connector

BNC

-

Connection to LAN

RG58 coax. cable 50 Ohm

-

Protocol

T/IP or IPoverOSI

RS232 interface -

Electrical interface

V.28

-

Connector

9 pin SUB-D female

-

Asynchronous baud rate

9600, 19200, 38400, 57600

-

Protocol

PPP

USB LCT interface -

Version

1.1

-

Connector

USB (B) female

-

Speed rate

12 Mbit/s

-

Protocol

PPP

24.10 MODULATOR/DEMODULATOR -

-

Carrier modulating frequency -

Tx side

330 MHz

-

Rx side

140 MHz

Type of modulation

ALS - MN.00164.E - 001

32QAM/128QAM

185

-

Type of coding

BCM (Block Coded Modulation)

-

Modulating signal gross bit rate

169036.846 kbit/s (STM-1) 338073.692 kbit/s (2xSTM-1)

-

Spectrum shaping

raised cosine (roll-off = 0.45 for 32QAM; 0.26 or 0.35 for 128QAM)

-

Demodulation

coherent

-

Baseband adaptive equalizer

21 taps

-

Coding gain (asymptotic)

11 dB

24.11 CABLE INTERFACE -

Interconnection with the ODU unit

single coaxial cable for both Tx and Rx

-

Cable length

see chapter “23 SYSTEM CHARACTERISTICS”

-

Rated impedance

50 Ohm

-

Signal running along the cable -

Tx nominal frequency

330 MHz

-

Rx nominal frequency

140 MHz

-

Transceiver management signals

388 kbit/s bidirectional

-

Carrier for transceiver management signals

IDU to ODU = 17.5 MHz/-15 dBm ODU to IDU = 5.5 MHz/-15 dBm

-

Remote power supply

direct from battery voltage

24.12 AVAILABLE LOOPS Following IDU loops are available: •

STM-1 loop, line side

•

STM-1 loop, radio side

•

baseband loop

•

IDU loop.

24.13 BATTERY INTERFACE -

Input battery voltage

48Vdc +20% -15%

Warning: As protection to power supply circuit, inside the equipment and behind the front , there is a fuse with the following characteristics:

186

ALS - MN.00164.E - 001

-

Nominal current

3A

-

Nominal voltage

125 Vdc

-

Type

timed

-

Dimensions

6.10 mm x 2.59 mm

-



soldering, not remplaceable during the service

-

Position

RIM module, behind front

24.14 POWER SUPPLY CURRENT Power supply (Recc. EN 300 132-2) -

Battery voltage

-

Imax at 48 Vdc

48 Vdc +20% -15% (positive to ground)

-

1+0 modular terminal

<2 A (ALS6/7/8/11/13/15) <1,3 A (ALS18/23/25/28/38)

-

1+1 modular terminal

<3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.) <2,3 A (ALS18/23/25/28/38) (<1,15A for con.)

-

1+0 XPIC modular terminal

<3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.) <2,3 A (ALS18/23/25/28/38) (<1,15A for con.)

-

1+1 XPIC modular terminal

<7,2 A (ALS6/7/8/11/13/15) (<1,8 A for con.) <4,6 A (ALS18/23/25/28/38) (<1,15A for con.)

-

1+0 compact terminal

<1,9 A (ALS6/7/8/11/13/15) <1,2 A (ALS18/23/25/28/38)

ALS - MN.00164.E - 001

187

25

CHARACTERISTICS OF ODU

25.1

GENERAL

The following ODU characteristics, relevant to the radio frequency, are included in attached manuals:

188

•

operating band and subbands

•

band number and width of RF filter

•

subdivision of the operating band in different transmitters

•

TX guaranteed characteristics

•

Rx guaranteed characteristics

•

consumption and power supply characteristics

•

losses in branching and flange typology towards antenna or wave guide.

ALS - MN.00164.E - 001

26

DESCRIPTION OF THE SDH IDU

26.1

GENERAL

SDH IDU is available in modular and compact versions. Modular version has nxSTM1 or Ethernet line interface. Compact version has only STM-1 line interface. Both versions can be connected to ODU AS and ODU ALS.

26.2

DESCRIPTION OF IDU SDH MODULAR (IDU ALS)

The SDH IDU consists of a wired mechanical shelf housing the following: •

LIM (Line Interface Module)

•

RIM (Radio Interface Module)

•

Controller.

In the following there is a description of each individual module.

26.2.1

LIM ETHERNET description

Three Ethernet ports are available: 2x10/100BaseT + 1x100BaseFX o 1000BaseSX/LX (Class 1 LED or Laser). Functions are those of a transparent bridge working on OSI level 2: •

Level 2 QoS management with priority queues control

•

Flow control

•

Access to carrier through MAC address examination

•

VLAN management with VLAN segregation on the carrier

•

Spanning-Tree Protocol management to avoid undesirable loops in the network

Quality of Service (QoS) is managed at level 2 and 3 with 4 priority queues for every port. Packets are sent to the right queue after analysis of the three bits of IEEE 802.1 tag or analysis of the bits of ToS field in the IP header. The module can accept Ethernet frames up to 1632 bytes but through LAN1 port configured as Full-Duplex 1Gigabit JUMBO, the limit is 12KB. Ethernet traffic is mapped in a GFP-F frame and multiplexed in VC3 (proprietary protocol): ALS link with Ethernet LIM allows point to point or East/West connection with identical equipment only. In order to provide independent routes in the network, two virtual concatenations are available. Every port (3 external and 2 internal) can be associated to a different concatenation with transport variable capacity, with 580Mbit/s radio side maximum throughput (290 mbit/s per direction in East/West configuration).

ALS - MN.00164.E - 001

189

Besides the Ethernet ports are available one V11 64 kbit/s contradir. channel (RJ45 connector) and eight E1 streams (single SCSI 50 pin connector) with 75 Ohms and 120 Ohms electrical interface: impedance selection occurs through proper connection of pins during connector cabling preparation. The eight streams are multiplexed and sent to Ethernet mapper circuit while the V11 channel is directly connected to STM-1 streams processor.

Functional description Ethernet traffic is processed at level 2, “transparent bridge” mode. The three external Ethernet ports are connected to an internal level 2 switch that routes the traffic in different direction depending on the MAC address (MAC filtering). LAN1 port in Full-Duplex 1Gigabit JUMBO (MAC filtering off) mode jumps this internal switch and sends traffic to GFP-F framer directly. Ethernet packet before to be sent to the proper VC3 is mapped in a GFP-F frame. For radio transport can exist up to 2 virtual concatenations of VC3 (each with relevant bridge). A block diagram is in Fig.119 with all the following main functional blocks.

Electrical interface Electrical interface complies to 802.3 standard and provides two RJ45 connectors on the front .

Optical interface Optical interface is obtained with a pluggable Laser o LED transceiver with LC connector. Equipment controller gives the information about transceiver presence/absence/type.

GMII Interface and GFP-F Frame This circuit matches the switch GMII interface with the internal interface; packed traffic, before being carried through concatenated VC3, is encapsulated using GFP-F protocol that s multilink transport.

Ethernet mapper This circuit maps encapsulated packed traffic and tributaries (8 E1 streams) inside VC3 concatenated together. Traffic can be divided in 2 different virtual concatenation in order to create different routes in the network. Each port can be associated to a different concatenation with transport variable capacity, with 580Mbit/s internal side maximum throughput.

Micro Interface All the configuration and management functions of the module are performed by Micro Interface

Microprocessor The microprocessor manages dinamically the Spanning Tree Protocol. It has a Dual Port RAM for the interconnection towards the main Controller

RAM Memory necessary to recover the delay among the various VC3 of the same concatenation and to recover the originary sequence of Ethernet packet.

190

ALS - MN.00164.E - 001

STM-1 manager The block converts the two virtual concatenations in STM-1 streams (and viceversa) in the same way described in 26.2.2.3 4xSTM-1 interface and in Fig.121.

V11

8xE1 mux/demux

Front

Trib. 1-8

JUMBO frame

100FX or 1000 SX/LX

Optical transceiver Electrical interface

100B T

100B T

Electrical interface

1 Layer 2 SWITCH

GMII interface and GFP framer

Ethernet mapper

2

STM-1 manager

3 4

RAM Microprocessor interface μ Processor

RAM FLASH

Dual Port Ram Controller module

Fig.119 - LIM Ethernet block diagram

ALS - MN.00164.E - 001

191

From DEM1

From DEM2

Frame aligner

Frame aligner

Alarms Alarms (LOF, RPM, J0) dem1 and (LOF, RPM, J0) 2 alarms, Ber

Data–ck–frame sync

Data–ck–frame sync

Hitless switch

2xSTM–1 radio side SOH Drop

Switch control

F1 D1–D3 RPM J0 STM–1 + 2 Mbit/s STM–1

STM–1 + 2 Mbit/s STM–1

RSOH insert 1

RSOH insert 2

F1 D1–D3 B1 J0

F1 D1–D3 B1 J0

2 Mbit/s

2 Mbit/s wayside drop/destuff Wayside interf.

2 Mbit/s

2 Mbit/s wayside drop/destuff

Service channels interconnection

STM–1

STM–1

line 1

line 2

Equip. controller

64 kbit/s/V11 local drop

Fig.120 - LIM block diagram, RST mode - 2x2STM-1 version - from radio side to line side

STM–1#1 STM–1#2

As per circuitry of Fig. 119 and 120

MODEM A

ODU A

As per circuitry of Fig. 119 and 120

MODEM B

ODU B

STM–1#3 STM–1#4

LIM Fig.121 - LIM - 4xSTM-1 mode

192

ALS - MN.00164.E - 001

26.2.2

Description of the LIM nxSTM1

The LIM is placed between the line side and the RIM circuitry. It interfaces the STM-1, 2xSTM-1, 4xSTM-1 tributary signals as below described.

26.2.2.1

STM-1 interface

Line side to radio side As shown in Fig.123, the STM-1 from the line side is coming from the SPI physical interface, electrical or optical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes termination. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word made by an alignment circuit. The SOH drop circuit extracts the following bytes: •

B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information. B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828. It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of the current frame prior to scrambling.

•

D1, D2, D3 are the DCC channels and are sent to main controller for supervision and management of regenerator sections

•

F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or ed to the radio side.

Remaining bytes are not changed and transit with no change. In case of input signal fail or failed recognition of A1/A2 or J0 byte on both radio streams an alarm criteria is provided (LOS/LOF) which allows to: •

enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH towards the radio side.

•

insert an MS AIS signal on the SOH and on the payload.

The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM1 frame to the two RIMs. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using the media dependent bytes and extra columns ed to STM-1 frame. The total bit rate corresponds to 157248 kbit/s. Remaining bytes are not used and transit with no change.

Radio side to line side As shown in Fig.123 STM-1 signals from RIMs are sent to SOH Drop circuits. The extraction of byte from SOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes by means of an aligner. Besides, it is performed a check on the path identifier contained into J0 byte. In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteria is provided (LOS/LOF) which allows to: •

enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH towards the line side.

•

insert an MS AIS signal on MSOH section of SOH and on the payload.

The SOH drop circuit extracts the following bytes: •

B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information. B1 byte is sent to main controller in order to process the performance monitoring relevant to G.826. It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of the current frame prior to scrambling.

•

D1, D2, D3 are the DCC channel and are sent to main controller for supervision and management of regenerator sections

•

F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or ed to the radio side.

•

2 Mbit/s wayside from media dependent bytes and extra columns ed to STM-1 frame.

ALS - MN.00164.E - 001

193

Remaining bytes are not changed and transit with no change. In 1+1 version STM-1 signals at the output of the two SOH drop circuits are sent to the Rx switching section. The switch is of hitless type. It provides the dynamic alignment for the two streams before switching with delay compensation up to ±16 bit. Switching operation can be observed on front LEDS. Alarms and controls managed by the main controller manage the switching operation according to the following priority list: •

power supply failure alarm

•

local manual force command

•

major receiver alarms: receiver failure, cable interface alarm, demodulator, LOS/LOF alarms

•

HBER alarm: bit error rate with threshold presettable 10-6 or 10-3

•

HBER alarm: bit error rate with threshold presettable 10-9 or 10-6

•

Early warning: bit error rate with threshold presettable 10-12 or 10-9

•

Prx alarm: presettable threshold within the received field range

•

preferred branch presetting.

The STM-1 signal at switching output is sent to SOH Insert circuit to insert B1, DCC and F1. In case of local restart A1, A2 bytes are regenerated for frame alignment purpose. SPI output circuit allows to adapt levels and code to G.703 specification for electrical interface or G.957 for optical interface.

26.2.2.2

2xSTM-1 interface

Line side to radio side (see Fig.124) The two STM-1 signals enter similar input circuits already seen in Fig.123, that is SPI and SOH drop. The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 input signals. The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 frames plus additional columns dedicated for the insertion of two local 2 Mbit/s wayside. The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous between them (see paragraph 26.2.2.4 Up to 4xSTM-1 synchronisation for details). The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring. As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the LIM front is only one. The operating mode is controlled as follows: •

line side: via software it is possible to terminate one F1 and enable the transit to the other in through modality

•

radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in through modality.

At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s. Along with the relevant clock the 314496 kbit/s signal is sent to the two modulators within the RIM via an hybrid for signal duplication.

Radio side (see Fig.125) The 2xSTM-1 signal plus relevant cks from demodulators within the RIMs are sent to the frame aligner circuits with the purpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch) that drive the hitless switch. This latter provides dynamic alignment of ±7 bytes before switching. The 2xSTM-1 radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring) signals that were embedded in the 2x2STM-1 frame in the far terminal, radio side.

194

ALS - MN.00164.E - 001

At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the 2 Mbit/s way side. The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfaces and then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to be delivered to the line side. Take into that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local service interface. The other F1 carries another 64 kbit/s-V11 channel (if used) in -through mode.

26.2.2.3

4xSTM-1 interface

Refer to Fig.126. The four STM-1 signals are two by two grouped (precisely STM-1#1 with STM-1#2 and STM-1#3 with STM1#4) and then sent to two different 2xSTM-1 multiplexers. The signal processing is equal to that already seen in paragraph 26.2.2.2 2xSTM-1 interface. The output of the 2x2 STM-1 multiplexers are individually sent to modem 1 and modem 2 to be applied, through the two transceivers, to a double-polarization antenna. This occurs when the frequency re-use system is used.

26.2.2.4

Up to 4xSTM-1 synchronisation

Refer to Fig.127. The 2xSTM1 or 4xSTM-1 configurations require: •

the input STM-1s to be synchronous among them;

•

the selection of the clock signal achieved from one of the input STM-1.

This to the purpose to generate a common synchronisation that enables the generation of one (2xSTM-1 transmission) or two 2xSTM-1 (4xSTM-1 transmission) frames along with the 2x2 Mbit/s waysides and 64 kbit/s service channel. As shown by the Fig.127 the clocks extracted from the up to four STM-1 signals are sent to a selection circuit that chooses one of the four signals depending on the control sent by a selection logic. This latter acts on the base of alarm roots (LOS-loss of input signal or LOF-loss of frame) priority assigned and manual forcing. The selected clock drives an oscillator through a PLL circuit. The oscillator will generate the required synchronisation for the 2xSTM-1 frame generation. If no input signals are available the internal oscillator source is used for the local restart.

26.2.3

Description of the RIM

The RIM consists of a common board housing the following mains circuits: •

32/128 QAM modemodulator

•

power supply and cable interface.

26.2.3.1

Modem

Reference is made to Fig.128.

ALS - MN.00164.E - 001

195

Modulator side The aggregate signal from LIM is enriched with extra redundancy for FEC operation reaching the total modulating rate shown below: •

169036,846 kbit/s (1xSTM-1 version)

•

338073,692 kbit/s (2xSTM-1 version).

The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digital filters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier. The QAM modulated carrier is ed, through an IF low filter and an amplifier, to the cable interface circuit for the connection to the IDU/ODU cable.

Demodulator side The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input ing through the cable interface circuit. An IF amplifier provided with AGC compensates for cable loss. This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used for Xpic operation. The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery information are achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent to the adaptive equalizer to minimize the intersymbolic interference. The data are then ed to the decoder and the error corrector for the relevant processing and for generation of a single aggregate signal to be sent to the LIM.

26.2.3.2

Power supply and cable interface

Reference is made to Fig.130. The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. The battery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed the LIM and the RIM. The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protection protects the battery against cable short. The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combination and separation filters. Signals from IDU to ODU are the following: •

battery voltage between the core and the cable shield

•

330 MHz, 32/128QAM modulated carrier carrying the main signal

•

17.5 MHz FSK modulated carrier coming from the LIM and carrying the controls for ODU management.

Signal from ODU to IDU are the following:

196

•

5 MHz FSK modulated carrier going to LIM and carrying the measurements and alarms from ODU

•

140 MHz 32/128 QAM modulated carrier carrying the main signal

ALS - MN.00164.E - 001

26.2.4

Description of RIM with XPIC

The RIM with XPIC for frequency reuse systems consists of a common board housing the following main circuits: •

32/128QAM modemodulator

•

32/128QAM additional demodulator

•

power supply and cable interface.

Modemodulator, power supply and cable interface are the same of normal RIM.

Additional demodulator for frequency reuse system The frequency reuse system allows the coexistence of two radio bearer transmission on the same radio channel. Each radio bearer carries up to 2xSTM-1 signal. The system consists of two fully independent transceivers, each of one connected to one polarisation of a dual polarized antenna (see Fig.129). Each receiving path receives the signal from the same polarisation and the interference signal from the cross polarisation. The interference signal can varies both in amplitude and phase as a function of the RF channel distortion due to the propagation condition. The frequency reuse system makes use of an additional demodulator that receives the IF signal from the receiver placed on the cross polarized antenna. The demodulator is equipped with an adaptive equalizer (XPIC) able to perform in the time domain the opposite function of the channel distortion. The signal thus generated, summed-up with the one available on the main demodulator, permits to cancel the interference contained in the copolar signal. This RIM has 3 connectors (see Fig.122) on front : •

SMA connector for IF IDU-ODU cable

•

SMA connector to send Rx signal to other RIM on other polarization

•

SMA connector to receive Rx signal from the other RIM working on the other polarization.

ON

ON

ON

ON

-

+

FAIL 1

2

3

4

W.S.1

W.S.2

RS232

IN/OUT

REM

TEST

X

X

X

X

-

+

R Q3 LCT

V11 IDUODU

Fig.122 – RIM with XPIC into 1RU IDU ALS

26.2.5

Description of the controller

The controller module supplies the following: •

the interface ports for the management program access

•

the equipment software for equipment management

•

the alarm interface through relay s that permits to transfer outside the alarm severity associated to each alarm root along with external input alarms.

ALS - MN.00164.E - 001

197

26.2.5.1

Interface ports

The SCT/LCT or NMS5UX management program takes access to the equipment through the following interface ports: •

LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s

•

RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s

•

Q3-Ethernet IEEE 802.3 with three different access connector options: RJ45/AUI/BNC.

•

STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.

26.2.5.2

Equipment firmware

Equipment firmware controls and manages all the equipment functionalities. It is distributed over two hardware levels: main controller within the controller module and peripheral controller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/s frame carried by FSK modemodulators (see Fig.131) housed into IDU and ODU.

Main controller The activities performed by the main controller are the following: •

Communication management: it makes use of SNMP as management protocol and IP or IPoverOSI as communication protocol stacks. See Fig.132 and Fig.133 for details. The interface ports to permits the dialogue man-machine between the SCT/LCT - NMS5UX programs and the main controller are listed in paragraph 26.2.5.1.

•

Log-in: the main controller manages the equipment or network / by setting and then controlling the ’s ID and relevant .

•

Database (MIB): validation and storing in a non-volatile memory of the equipment configuration parameters.

•

Equipment configuration: distribution of the parameters stored in the MIB towards the peripheral µPs for their attenuation in addition to the controls from not stored in the MIB (i.e. loops, manual forcing etc....)

•

Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Local logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of the alarm signalling on the LIM front .

•

Performances: PM management as per Recc. G.828.

•

: the main controller is equipped with two flash memory banks containing the running program (active bank) and the stand-by program (inactive bank). This permits to a new software release to the inactive bank without distributing the traffic. Bank switch enables the new release to be used. activity is based on FTP protocol which s application programs, FPGA configuration, configuration files on main controller inactive bank or directly on the peripheral controllers.

Peripheral controller The peripheral controllers take place within the ODU and are slaved to main controller with the task of activating controls and alarm reporting of dedicated functionality.

198

ALS - MN.00164.E - 001

26.2.6

IDU telemetry

Refer to Fig.134. The telemetry is used to: •

propagate towards the far radio terminal the following information: ATPC, inputs and alarms. It makes use of the S (2,2) media dependent byte for the transport.

•

permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388 kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cable making use of a 5.5 MHz FSK modulated carrier.

Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/s framed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulated carrier.

26.2.7

IDU loops

To control the IDU correct operation a set of local and remote loops are made available. The controls are sent by the management program (SCT/LCT or NMS5UX). Refer to Fig.135 for details.

26.2.7.1

Line loop

Local loop Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT interconnecting cables.

Remote loop Each output STM-1 signal is routed back towards the radio. This permits to control the path back and forward.

26.2.7.2

Baseband loop

The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to the output lines. This permits to control all the LIM circuitry.

26.2.7.3

IDU loop

This loop permits to control the full IDU operation. It happens inside the RIM. The modulator output signal is routed back to the demodulator. Upon enabling the loop, the 330 MHz modulator output frequency is converted to 140 MHz (demodulator input).

Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable disconnected from IDU to give a final result.

ALS - MN.00164.E - 001

199

26.2.8

Front of SDH IDU modular (IDU ALS)

Fig.136 shows the front of SDH IDU modular (with RIM XPIC) with LEDs and connectors highlighted.

26.3

DESCRIPTION OF IDU SDH COMPACT (IDU ALS-C)

26.3.1

General

IDU SDH compact version is an indoor unit for SDH equipment produced in single board structure. There’s no protected configuration and no XPIC. Two different hardware composition are available for the same unit in order to operate with interfaces and services a) and b), as illustrated in the Tab.29. Tab.29 - Service and interfaces Type

Payload

Service

a

2xSTM1 electrical with 1.0/2.3 2xE1 (wayside) connectors

1xV11 1xRS232

b

2XSTM1 optical/electrical with plug-in module 2xE1 (wayside) connectors

1xUSB 2xETH10/100

Capacities 155 Mbit/s (with 32QAM/128QAM modulation) and 311 Mbit/s (with 128QAM modulation) are provided. Specifically the possible alternatives are: •

STM1 (155 Mbit/s) 128QAM - 28 MHz

•

STM1 (155 Mbit/s) 32QAM - 56 MHz

•

2xSTM1 (311 Mbit/s) 128QAM - 56 MHz.

IDU consists of a single module which contains all devices to realize following functions: •

line interface

•

radio interface

•

equipment controller

•

IDU loop

•

baseband loop

•

line loop.

26.3.1.1

STM-1 interface

Line side to radio side As shown in Fig.137, the STM-1 signal from the line side is coming from the SPI physical interface, electrical or optical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes termination. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word made by an alignment circuit. The SOH drop circuit extracts the following bytes: •

200

B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information. B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828.

ALS - MN.00164.E - 001

It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of the current frame prior to scrambling. •

D1, D2, D3 are the DCC channels and are sent to main controller for supervision and management of regenerator sections

•

F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or ed to the radio side.

Remaining bytes are not changed and transit with no change. In case of input signal fail or failed recognition of A1/A2 or J0 byte on both radio streams an alarm criteria is provided (LOS/LOF) which allows to: •

enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH towards the radio side.

•

insert an MS AIS signal on the SOH and on the payload.

The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM1 frame to modulator. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using the media dependent bytes and extra columns ed to STM-1 frame. The total bit rate corresponds to 157248 kbit/ s. Remaining bytes are not used and transit with no change.

Radio side to line side As shown in Fig.137 STM-1 signals from demodulator are sent to SOH Drop circuits. The extraction of byte from SOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes by means of an aligner. Besides, it is performed a check on the path identifier contained into J0 byte. In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteria is provided (LOS/LOF) which allows to: •

enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH towards the line side.

•

insert an MS AIS signal on MSOH section of SOH and on the payload.

The SOH drop circuit extracts the following bytes: •

B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information. B1 byte is sent to main controller in order to process the performance monitoring relevant to G.826. It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of the current frame prior to scrambling.

•

D1, D2, D3 are the DCC channel and are sent to main controller for supervision and management of regenerator sections

•

F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or ed to the radio side.

•

2 Mbit/s wayside from media dependent bytes and extra columns ed to STM-1 frame.

Remaining bytes are not changed and transit with no change. The STM-1 signal is sent to SOH Insert circuit to insert B1, DCC and F1. In case of local restart A1, A2 bytes are regenerated for frame alignment purpose. SPI output circuit allows to adapt levels and code to G.703 specification for electrical interface or G.957 for optical interface.

26.3.1.2

2xSTM-1 interface

Line side to radio side (see Fig.138) The two STM-1 signals enter similar input circuits already seen in Fig.137, that is SPI and SOH drop. The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 input signals. The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 frames plus additional columns dedicated for the insertion of two local 2 Mbit/s wayside.

ALS - MN.00164.E - 001

201

The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous between them. The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring. As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the front is only one. The operating mode is controlled as follows: •

line side: via software it is possible to terminate one F1 and enable the transit to the other in through modality

•

radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in through modality.

At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s. Along with the relevant clock the 314496 kbit/s signal is sent to modulator.

Radio side (see Fig.139) The 2xSTM-1 signal plus relevant clock from demodulator are sent to the frame aligner circuits with the purpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch). The 2xSTM-1 radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring) signals that were embedded in the 2x2STM-1 frame in the far terminal, radio side. At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the 2 Mbit/s way side. The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfaces and then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to be delivered to the line side. Take into that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local service interface. The other F1 carries another 64 kbit/s-V11 channel (if used) in -through mode.

26.3.1.3

Modem

Reference is made to Fig.140.

Modulator side The aggregate signal from line interface is enriched with extra redundancy for FEC operation reaching the total modulating rate shown below: •

169036,846 kbit/s (1xSTM-1 version)

•

338073,692 kbit/s (2xSTM-1 version).

The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digital filters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier. The QAM modulated carrier is ed, through an IF low filter and an amplifier, to the cable interface circuit for the connection to the IDU/ODU cable.

Demodulator side The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input ing through the cable interface circuit. An IF amplifier provided with AGC compensates for cable loss. This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used for Xpic operation. The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery information are achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent to the adaptive equalizer to minimize the intersymbolic interference. The data are then ed to the decoder and the error corrector for the relevant processing and for generation of a single aggregate signal to be sent to line interface.

202

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26.3.1.4

Power supply and cable interface

Reference is made to Fig.141. The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. The battery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed the IDU. The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protection protects the battery against cable short. The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combination and separation filters. Signals from IDU to ODU are the following: •

battery voltage between the core and the cable shield

•

330 MHz, 32/128QAM modulated carrier carrying the main signal

•

17.5 MHz FSK modulated carrier coming from the Controller and carrying the controls for ODU management.

Signal from ODU to IDU are the following: •

5 MHz FSK modulated carrier going to Controller and carrying the measurements and alarms from ODU

•

140 MHz 32/128 QAM modulated carrier carrying the main signal

26.3.2

Controller

The controller manages the following: •

the interface ports for the management program access

•

the equipment firmware for equipment functioning

•

the alarm interface through relay s that permits to transfer outside the alarm severity associated to each alarm root along with external input alarms.

26.3.2.1

Interface ports

The SCT/LCT or NMS5UX management program takes access to the equipment through the following interface ports: •

LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s

•

RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s

•

Q3-Ethernet IEEE 802.3 with RJ45 connector

•

STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.

26.3.2.2

Equipment firmware

Equipment firmware controls and manages all the equipment functionalities. It is distributed over two hardware levels: main controller within the controller module and peripheral controller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/s frame carried by FSK modemodulators (see Fig.142) housed into IDU and ODU.

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203

Main controller The activities performed by the main controller are the following: •

Communication management: it makes use of SNMP as management protocol and IP or IPoverOSI as communication protocol stacks. See Fig.143 and Fig.144 for details.

•

Log-in: the main controller manages the equipment or network / by setting and then controlling the ’s ID and relevant .

•

Database (MIB): validation and storing in a non-volatile memory of the equipment configuration parameters.

•

Equipment configuration: distribution of the parameters stored in the MIB towards the peripheral µPs for their attenuation in addition to the controls from not stored in the MIB (i.e. loops, manual forcing etc....)

•

Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Local logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of the alarm signalling on the front .

•

Performances: PM management as per Recc. G.828.

•

: the main controller is equipped with two flash memory banks containing the running program (active bank) and the stand-by program (inactive bank). This permits to a new software release to the inactive bank without distributing the traffic. Bank switch enables the new release to be used. activity is based on FTP protocol which s application programs, FPGA configuration, configuration files on main controller inactive bank or directly on the peripheral controllers.

Peripheral controller The peripheral controllers take place within the ODU and are slaved to main controller with the task of activating controls and alarm reporting of dedicated functionality.

26.3.3

IDU telemetry

Refer to Fig.145. The telemetry is used to: •

propagate towards the far radio terminal the following information: ATPC, inputs and alarms. It makes use of the S (2,2) media dependent byte for the transport.

•

permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388 kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cable making use of a 5.5 MHz FSK modulated carrier.

Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/s framed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulated carrier.

26.3.4

IDU loops

To control the IDU correct operation a set of local and remote loops are made available. The controls are sent by the management program (SCT/LCT or NMS5UX). Refer to Fig.146 for details.

204

ALS - MN.00164.E - 001

26.3.4.1

Line loop

Local loop Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT interconnecting cables.

Remote loop Each output STM-1 signal is routed back towards the radio. This permits to control the path back and forward.

26.3.4.2

Baseband loop

The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to the output lines. This permits to control all the line interface circuitry.

26.3.4.3

IDU loop

This loop permits to control the full IDU operation. The modulator output signal is routed back to the demodulator. Upon enabling the loop, the 330 MHz modulator output frequency is converted to 140 MHz (demodulator input).

Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable disconnected from IDU to give a final result.

26.3.5

Front of SDH IDU compact (IDU ALS-C)

Fig.147 shows the front of SDH IDU compact with LEDs and connectors highlighted.

ALS - MN.00164.E - 001

205

Fig.123 – LIM block diagram, RST mode - 1xSTM-1 operation

206

ALS - MN.00164.E - 001

Ck

to RIM2

to RIM1

STM–1

STM–1

from RIM2

STM–1

Ck

from RIM1

STM–1

F ramer

2 Mbit/s

RSOH bytes drop

STM–1

Local synchr gener.

Local restart

SOH Drop

Main controller

AL

AL

F ramer

Local synchr gener.

Local restart

Alarms

LOS/LOF

MS AIS

SOH byte control and Tx/R x switching management

MS AIS

RSOH bytes drop

STM–1

Rx Hitless criteria

Alarms

Sw criteria

As above

2 Mbit/s

2 Mbit/s wayside

SOH Insert

RSOH bytes insert

AL

AL

Data loss

2 Mbit/s wayside

SOH Drop

SP I In

Data loss

Ck

RSOH bytes insert

SOH Insert

G.703 or G.957

STM–1

SP I Out

G.703 or G.957

STM–1

Fig.124 – LIM block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side

ALS - MN.00164.E - 001

207

local insert

64 kbit/s/V11

F1 J0

E quip. controller

STM–1

Wayside interface

MS–AIS

Local restart & MS AIS measur.

Wayside interfaces

B1+B2 PM

STM–1 from line

B1

to MOD2

to MOD1

Data + CK

STM–1

STM–1/2 fail

STM–1 + wayside

2 Mbit/s wayside insert and stuffing

D1–D3

STM–1 /1 fail

F1 J0

SP I, RSOH DROP 2

2xSTM–1 Radio side multiplexer plus SOH Insert

J0

2x2 Mbit/s

F 1 D1–D3

STM–1 + wayside

2 Mbit/s wayside insert and stuffing

D1–D3

SP I, RSOH DROP 1

Service channels interconnections

B1+B2 PM

STM–1 from line

From DEM1

From DEM2

Frame aligner

Frame aligner

Alarms Alarms (LOF, RPM, J0) dem1 and (LOF, RPM, J0) 2 alarms, Ber

Data–ck–frame sync

Data–ck–frame sync

Hitless switch

2xSTM–1 radio side SOH Drop

Switch control

F1 D1–D3 RPM J0 STM–1 + 2 Mbit/s STM–1

STM–1 + 2 Mbit/s STM–1

RSOH insert 1

RSOH insert 2

F1 D1–D3 B1 J0

F1 D1–D3 B1 J0

Wayside interf.

STM–1

to line

to line

2 Mbit/s

2 Mbit/s wayside drop/destuff

Equip. controller

Service channels interconnection

STM–1

2 Mbit/s

2 Mbit/s wayside drop/destuff

64 kbit/s/V11 local drop

Fig.125 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side

STM–1#1 STM–1#2

As per circuitry of Fig. 124

MODEM A

ODU A

As per circuitry of Fig. 124

MODEM B

ODU B

STM–1#3 STM–1#4

LIM Fig.126 – LIM - 4xSTM-1 operation mode

208

ALS - MN.00164.E - 001

Ck from STM–1/1 Ck from STM–1/2 Ck from STM–1/3

Synchronism for 2xSTM–1 generation

Clock selection

Ck from STM–1/4 Control LOS 1–4 LOF 1–4 Priority control Manual forcing

Logic circuit for clock selection

Fig.127 – Synchronisation block diagram

ALS - MN.00164.E - 001

209

Fig.128 – Modemodulator block diagram

210

ALS - MN.00164.E - 001

Data to LIM

E rror corrector & decoder Carrier recovery Adaptive equalizer

encoder

Data from LIM F E C &

XP IC D

D

VCXO

CK recovery

Digital filter

A

A

D

D

A

A

D

D I&Q demod.

VCO 140 MHz

IF interface

VCO 140 MHz

I&Q demod.

A

A

I&Q modulator

330 MHz oscillator

IF & AGC

IF input

IF output

Cable interface

IF

Rx1

TxA Data H H

Main DEM

+ data H

H Dem with XPIC

RIM1 RIM2

Dem with XPIC V

Data V

V

Rx2

TxB

IF

Main DEM

+ data V

Fig.129 – Frequency reuse system arrangement

MOD

330 MHz

LIM

MOD FSK

5 MHz Cable interface 17,5 MHz

to/from ODU

DEM FSK Cable protec.

–48 V battery

Filtering & fuse

– –

+3.5 V +1.5 V +5 V

DEM 140 MHz Fig.130 – Power supply and cable interface block diagram

ALS - MN.00164.E - 001

211

ODU2

Peripheral controller 338 kb/s gen/rec.

388 kbit/s

F SK modem F SK modem

F SK modem

388 kbit/s generator receiver

ODU1

388 kb/s gen/rec.

388 kbit/s

Peripheral controller

Alarms

F SK modem

Main controller

388 kbit/s generator receiver

DCC Alarm/ Out In LCT RS232 LAN

Fig.131 – Main and peripheral controller connection

ALS APPLICATION SOFTWARE SNMP T/UDP IP / OSPF PPP Asynchronous RS – 232

LLC ISO 8802.2 MAC ISO 8802.3 ISO 8802.3 (Ethernet LAN)

PPP

PPP

STM–1 DCC Radio side STM–1 DCC Line side

Fig.132 – Full-IP protocol stack

212

ALS - MN.00164.E - 001

ALS APPLICATION SOFTWARE

SNMP

T/UDP

IP / OSPF

ISO 8473

ISO 10598 – IS

PPP

LLC ISO 8802.2 MAC ISO 8802.3

LAPD Q.921

Asynchronous RS– 232

ISO 8802 .3 (Ethernet LAN)

STM–1 DCC– Radio side

LAPD Q.921 STM–1 DCC– Line side

5 MHz F SK

17 M Hz MOD F SK To ODU via RIM DE M

SCT/ LCT

Main controller

Interface

S Telemetry (2.2) 2xSTM–1 towards frame remote

Fig.133 – OSI+IP protocol stack

Fig.134 – IDU telemetry

ALS - MN.00164.E - 001

213

Fig.135 – IDU loops

214

ALS - MN.00164.E - 001

up to 2xSTM–1

up to 2xSTM–1

Line loop L IM

Rem line loop 1xSTM–1 or 2xSTM–1 MUX

1xSTM–1 or 2xSTM–1 MUX BB loop

DE M QAM

RIM

140

330

MOD QAM

IDU loop 140 MHz

330 MHz

1

2

5

6

7

ON

FAIL 1

2

3

4

W.S.1

W.S.2 R Q3

LCT

10

8

RS232

11

REM

IN/OUT

12

13

V11 IDU ODU

14

TEST

X

X

X

X

9 -

+

ON

ON

4

+

ON

3

-

15

1

Led fail (self test controller)

-

Electrical or plug-in line interface (electrical or optical with LED ON) and fail

-

2xE1 wayside (RJ45)

-

V11 (RJ45)

-

IDU-ODU cable (SMA) connector

-

IF out XPIC (SMA) connector

-

IF in XPIC (SMA) connector

-

-48 Vdc power supply connector, positive to ground

-

Switch button

-

LCT (USB) connector

-

RS232 (SUB-D 9 pin male) connector

-

In/Out (SUB-D 9 pin male) connector

-

Q3 (RJ45) connector

-

Reset button

-

IDU alarm LEDs (red), ODU (red), REM (red), TEST (yellow) Fig.136 - Front of SDH IDU modular

ALS - MN.00164.E - 001

215

Fig.137 – Line interface block diagram, RST mode - 1xSTM-1 operation (IDU SDH compact)

216

ALS - MN.00164.E - 001

Ck

from RIM1

STM–1

to modulator

STM–1

F ramer

2 Mbit/s

Local synchr gener.

RSOH bytes drop

SOH Drop

LOS/LOF

MS AIS

Main controller

SOH byte control and

MS AIS

Ala rms

RSOH bytes drop

STM–1

Local restart

2 Mbit/s

2 Mbit/s wayside

SOH Insert

RSOH bytes insert

AL

AL

Data loss

2 Mbit/s wayside

SOH Drop

RSOH bytes insert

Alarms

AL

AL

F ramer

Local synchr gener.

Local restart

Data loss

Ck

SP I In

SOH Insert

G.703 or G.957

STM–1

SP I Out

input

G.703 or G.957

STM–1 output

Fig.138 – Line interface block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side - IDU SDH compact

ALS - MN.00164.E - 001

217

local insert

64 kbit/s/V11

F1 J0

E quip. controller

Service channels interconnections

B1+B2 PM

STM–1 B1+B2 PM

J0

MS–AIS

Local restart & MS AIS measur.

Wayside interfaces

B1

to modulator

Data + CK

STM–1

STM–1/2 fail

STM–1 + wayside

2 Mbit/s wayside insert and stuffing

D1–D3

STM–1 /1 fail

F1 J0

2xSTM–1 Radio side multiplexer plus SOH Insert

F 1 D1–D3

STM–1 + wayside

2 Mbit/s wayside insert and stuffing

D1–D3

Wayside interface

SP I, RSOH DROP 2

SP I, RSOH DROP 1 2x2 Mbit/s

STM-1 input n° 2

STM-1 input n° 1

From DEM

Alarms (LOF, RPM, J0)

Frame aligner Data–ck–frame sync

2xSTM–1 radio side SOH Drop

F1 D1–D3 RPM J0 STM–1 + 2 Mbit/s STM–1

STM–1 + 2 Mbit/s STM–1

STM–1

output n°1

RSOH insert 1

RSOH insert 2

F1 D1–D3 B1 J0

F1 D1–D3 B1 J0

2 Mbit/s

2 Mbit/s wayside drop/destuff Wayside interf.

2 Mbit/s

2 Mbit/s wayside drop/destuff

Service channels interconnection

STM–1

Equip. controller

64 kbit/s/V11 local drop

output n°2

Fig.139 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side (IDU SDH compact)

218

ALS - MN.00164.E - 001

Fig.140 – Modemodulator block diagram

ALS - MN.00164.E - 001

219

to line interface

E rror corrector & decoder Carrier recovery

from line interface

Adaptive equalizer

FEC & encoder

VCXO

CK recovery

Digital filter D

D

A

A

D

D

A

A

VCO 140 MHz

I&Q demod.

I&Q modulator

330 MHz oscillator

IF & AGC

Cable interface

a/da ODU

CONTROLLER

MOD

MOD FSK

330 MHz

5 MHz Cable interface 17,5 MHz

DEM FSK

to/from ODU

Cable protec.

–48 V battery

Filtering & fuse

– –

+3.5 V +1.5 V +5 V

DEM 140 MHz Fig.141 – Power supply and cable interface block diagram

220

ALS - MN.00164.E - 001

DCC

ODU

388 kb/s gen/rec. Peripheral controller

388 kbit/s

F SK modem

388 kbit/s generator receiver

Main controller

F SK modem

Alarm/ Out In LCT RS232

Alarms

LAN

Fig.142 – Main and peripheral controller connection

ALS APPLICATION SOFTWARE SNMP T/UDP IP / OSPF PPP Asynchronous RS – 232

LLC ISO 8802.2 MAC ISO 8802.3 ISO 8802.3 (Ethernet LAN)

PPP

PPP

STM–1 DCC Radio side STM–1 DCC Line side

Fig.143 – Full-IP protocol stack

ALS - MN.00164.E - 001

221

ALS APPLICATION SOFTWARE

SNMP

T/UDP

IP / OSPF

ISO 8473

ISO 10598 – IS

PPP

LLC ISO 8802.2 MAC ISO 8802.3

LAPD Q.921

Asynchronous RS– 232

ISO 8802 .3 (Ethernet LAN)

STM–1 DCC– Radio side

LAPD Q.921 STM–1 DCC– Line side

5 MHz F SK

17 M Hz MOD F SK To ODU via RIM DE M

SCT/ LCT

Main controller

Interface

S Telemetry (2.2) 2xSTM–1 towards frame remote

Fig.144 – OSI+IP protocol stack

Fig.145 – IDU telemetry

222

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Fig.146 – IDU loops

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223

up to 2xSTM–1

up to 2xSTM–1

Line loop

1xSTM–1 or 2xSTM–1 MUX

IDU SDH Compact

Rem line loop

1xSTM–1 or 2xSTM–1 MUX BB loop

DE M QAM

140

330

MOD QAM

IDU loop 140 MHz

to/from ODU

330 MHz

8 V11

9

LCT

STM1-2

ODU TEST

1

1

3

2

4

2

5

Q3/1

6

1

STM1-1 output (optical or electrical plug-in)

2

STM1-1 input (optical or electrical plug-in)

3

STM1-2 output (optical or electrical plug-in)

4

STM1-2 input (optical or electrical plug-in)

5

2xE1 (1, 2) wayside

6

ETH1 (RJ45) connector

7

ETH2 (RJ45) connector

8

V11 (RJ45) connector

9

RS232 (RJ45) connector

Q3/2

7

+

2 1

17

RS232

2Mb/s WAY SIDE STM1-1

16

IN/OUT

10

11

12

13

IDU ON

-

14 15

18

10 LCT (USB) connector 11 (SUB-D 9) 2 in, 1 out console 12 3,15 A 250V delayed fuse 5 ∅ 20 mm miniature 13 SUB-D 3W3 power supply connector 14 IDU-ODU cable SMA connector 15 Led Test (yellow) 16 ODU alarm Led (red) 17 IDU alarm Led (red) 18 Led On (green) Fig.147 - Front of IDU SDH compact

224

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27

ODU AS DESCRIPTION

27.1

GENERAL

The ODU (refer to Fig.148) consists of a two shell aluminium structure, one shell housing all the circuits, the other forming the covering plate. On the ODU there are: •

the “N” type connector for cable interfacing IDU and ODU

•

the “BNC” connector for connection to a multimeter with the purpose to measure the received field strength

•

a ground bolt.

The 1+1 hot stand–by version (refer to Fig.149) consist of two ODUs mechanically secured to a structure housing the hybrid (for 1+1 hot stand-by configuration) or the circulator (for 1+1 frequency diversity configuration) for the antenna connection.

27.2

TRANSMIT SECTION

Refer to block diagram shown in Fig.150. The 330 MHz QAM modulated carrier from the cable interface (see chapter 27.4 CABLE INTERFACE) is forwarded to a mixer ing through a cable equalizer for cable loss compensation up to 40 dB. The mixer and the following band filter give rise to a second IF Tx carrier the frequency of which depends on the go/return frequency value. The IF Tx frequency is µP controlled. Same happens to Rx IF and RF local oscillators. This latter is common to both Tx and Rx sides. The IF carrier is converted to RF and then amplified making use of MMIC circuits. The power at the MMIC output can be manually attenuated via software. The automatic adjustment is performed making use of an ATPC (see paragraph 27.5 ATPC OPERATION for details). The regulated output power is kept constant by a detector diode and a including the AGC. RF Tx signal is injected in Tx section of the duplexer. The Loop RF circuits permit the conversion of the RF Tx signal to Rx frequency of the terminal. In this way it is possible to control the total local radio terminal performance.

27.3

RECEIVE SECTION

The RF signal coming from the Rx band filter of the duplexer is sent to a low noise amplifier that amplify it to low NF. The following down–converter translates the RF frequency to IF Rx frequency.

ALS - MN.00164.E - 001

225

A second down converter converts this signal to 140 MHz IF frequency. The output level of this signal is kept constant to –5 dBm thank to the IF amplifier stages, AGC circuit controlled. Inside the IF Rx chain there are filters that give Rx selectivity. In addition the AGC gives a measure of the receive RF level.

27.4

CABLE INTERFACE

The cable interface permits to interface the cable interconnecting IDU to ODU and viceversa. It receives/transmits the following signals: •

330 MHz (from IDU to ODU)

•

140 MHz (from ODU to IDU)

•

17.5 MHz (from IDU to ODU)

•

5.5 MHz (from ODU to IDU)

•

remote power supply.

The 17.5 MHz (IDU -> ODU) and 5.2 MHz (ODU -> IDU) FSK modulated carriers, carry the telemetry channel. This latter consists of two 388 kbit/s streams one from IDU to ODU with the information to manage the ODU (RF power, RF frequency, capacity, etc...) while the other, from ODU to IDU, sends back to IDU measurements and alarms of the ODU. The ODU management is made by a µP.

27.5

ATPC OPERATION

The ATPC regulates the RF output power of the local transmitter depending on the value of the RF level that s the remote terminal. This value has to be preset from the local terminal as threshold high and low. The difference between the two thresholds must be equal or higher than 3 dB. As soon as the received level crosses the preset threshold level low (see Fig.151) due to the increase of the hop attenuation, a microP at the received side of the remote terminal sends back to the local terminal a control to increase the transmitted power. The maximum ATPC range is 40 dB. If the hop attenuation decreases and the threshold high is crossed then the control sent by the microP causes the output power to decrease.

27.6

1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM

The following 1+1 configurations are available: •

1+1 hot stand-by, realized by 2 ODUs coupled by a mechanical with one hybrid inside. Hybrid can be balanced or unbalanced.

•

1+1 frequency diversity, realized by 2 ODUs coupled by a mechanical with a circulator inside.

The two ODUs are coupled to the antenna side via a balanced or unbalanced hybrid/circulator.

226

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27.7

POWER SUPPLY

The battery voltage is dropped from the cable interface and then sent to a DC/DC converter to generate stabilized output voltages used by the ODU circuitry: Each voltage is protected against overcurrent with automatic restart. Protection against overvoltage occurs as soon as the output voltage raises more than 15% respect to the nominal voltage. The restart is automatic.

27.8

FREQUENCY REUSE

The frequency reuse system makes use of an XPIC circuit (Cross Polar Interference Canceller) and allows the coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries an individual STM–1 or 2xSTM–1. The system consists of two fully independent transceivers, and a crosspolarized antenna with polarization H connected to one transceiver and polarization V connected to the other transceiver. The initial co–channel interference is featured by the antenna cross polar discrimination factor (example 29 dB). This value may be not sufficient for frequency reuse system making use of modulations ≥ of 32QAM. After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitable discrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must be used. As shown in Fig.152, the received signals at the IF receiver outputs are processed by the demodulator placed on the copolar branch as well as by the canceller annexed to the demodulator processing the signals from the cross polar polarization. This process operates inbase band time domain. An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas a circuit similar to the equalizer, processes the signal on the cross route. Such a signal, summed with the one available at the equalizer output permits the cancelling of the interference contained in the copolar signal.

ALS - MN.00164.E - 001

227

Fig.148 - 1+0 ODU

Fig.149 - 1+1 ODU with branching

228

ALS - MN.00164.E - 001

Fig.150 - ODU block diagram

ALS - MN.00164.E - 001

229

PRx meas.

BNC

N type

PRx meas

x

AGC

-12 V

DEM 17.5 MHz

ctrl

variable bw (capacity depending)

388 kbit/s

MUX DEMUX

Alarm manag & control

+6.2 to 8.2 V

+3.5 V

Cable equaliz.

388 kbit/s

INV

Step up

140 MHz

REC 17.5 MHz

MOD 5.5 5.5 MHz MHz

17.5 MHz

Cable interface

-48 V

330 MHz

DC

DC

140 MHz

Alm comm loops ctrl

Rx

LO IF unit

Tx

T

approx. 765 MHz

ctrl

IF Tx

AGC

PTx att. control 0 to 40 dB

Tx

Rx

RF LO unit

MMIC

LNA

ctrl

RF loop

x

antenna side

Remote PRx dBm

Local

Remote Rx

Tx

Thresh High

PRx recording level

PTx actuation Thresh Low μP

μP PTx control Transmission

Rx

Tx

of PTx control

Hop attenuation (dB) Local PTx dBm

PTx max.

20 dB ATPC range PTx min.

Hop attenuation (dB)

Fig.151 - ATPC operation

IF Rx1

DEM

H data

+

H XPIC RIM1 RIM2 XPIC V

DEM

Rx2

+

V data

IF

Fig.152 - Frequency reuse system

230

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28

ODU ALS DESCRIPTION

28.1

GENERAL

Refer to Fig.153. The ODU mechanical structure consists of two aluminium shells that contain respectively the active circuits and the branching filter. It is the electrical interface with the radiant system and the coaxial cable connected to the indoor unit (IDU). The IDU–ODU cable connection is realised by a “N” type connector. In the 1+1 versions there are two “N” connectors available. A BNC connector is also available for the measurement of the received field by means of a multimeter. The ODU is available in the 1+0 version or in the 1+1 version. The subdivision of active circuits into the transceiver and ive circuits into the branching has allowed the execution of a mechanical structure that makes easier the maintenance operations. Two knobs and two fast coupling levers permit to remove the faulty transceiver and replace it with spare. One handle makes the transceiver transport easier.

28.2

TRANSMITTER SECTION

Refer to block diagram shown in Fig.154. The modulated signal at 330 MHz intermediate frequency dropped from cable interface (see chapter 28.4 CABLE INTERFACE) is forwarded to a mixer in order to translate it to a new IF frequency by beating with an IF local oscillator. The value of this IF frequency depends on the RF channelling. The frequency conversion from IF to the RF operating band is enabled through an SHP (Sub Harmonic Pumped) mixer. This latter is fed by a VCO (RF LO), common also to the receive section. At the mixer output, it is positioned a filter with metallic insert (E–plane metal insert filter). Such a filter provides the selection of the useful band and the erasing of the spurious signals coming from the mixer. The signal at the filter output is forwarded to a power amplifier the gain of which is controlled by an ATPC circuit (if enabled) or manually controlled. The ATPC range is from 0 to 20 dB, 1 dB step. ATPC function is managed by the main controller present in the IDU and it is particularly useful to reduce the possible interference generation.

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231

28.3

RECEIVER SECTION

Refer to block diagram shown in Fig.154. The signal coming from the branching is forwarded to a low noise amplifier. This operation allows to reduce the noise factor of the whole receiver. Then the signal is sent to a variable amplifier with the aim to limit the intermodulation in the following steps. At the output, a pre–conversion filter with metallic insert (E–plane metal insert filter) is positioned. Such a filter provides eliminating all the signals out of the receiving band. The reception mixer is a SHP (Sub Harmonic Pumped) type one. It allows to convert the received signal from RF band to IF Rx frequency making use of RFLO oscillator. At the mixer output, the signal is sent to a dielectric resonator filter to select the useful band and to eliminate mixer spurious signals. A second down conversion translates the IF Rx signal frequency to 140 MHz. At the mixer output, one filter shapes the band for STM–1 or 2xSTM–1 signal. This filter is realised by means of SAW technique to ensure high attenuations out of band. An AGC (Automatic Gain Control) circuit regulates the received signal at an output constant level before to be sent to the cable interface.

28.4

CABLE INTERFACE

The cable interface unit permits to interface the cable interconnecting IDU to ODU and viceversa. It receives/transmits the following signals (see Fig.159): •

330 MHz (from IDU to ODU)

•

140 MHz (from ODU to IDU)

•

17,5 MHz (from IDU to ODU)

•

5,5 MHz (from ODU to IDU)

•

remote power supply.

The 17.5 MHz and 5,5 MHz carriers, carry the telemetry channel. This latter consists of two 388 kbit/s streams one from IDU to ODU with the information to manage the ODU (RF power, frequency, capacity etc...) while the other, from ODU to IDU, sends back to IDU measurements and alarms of the ODU. A Mux/Demux and an alarm/management & control µP complete the telemetry channel.

28.4.1

Power supply

The cable interface unit manages the remote power supply VTAL for the outdoor unit provided through the interconnecting cable coming from indoor unit. Refer to Fig.154. This voltage is sent to two DC/DC converters, inserted into the power supply unit, to obtain the –12 V and +12 V stabilised voltages. The +12 V is sent to another DC/DC converter to obtain the stabilised voltage +5 V. These three outputs (+12 V, –12 V, +5 V) supply the whole transceiver. Each voltage has overcurrent protection (Overcurrent prot) to disable the relevant converter. The Alarm Detector block generates an alarm (PSU AL) due to undervoltage, if at least one of these voltages drops under the fixed threshold. The unit provides also an interrupt command for the +5 V and +12 V outputs if the output voltage –12 V is missing. This prevents the devices in the power amplifier stage from reaching their saturation current.

232

ALS - MN.00164.E - 001

28.5

BRANCHING UNIT

The branching unit allows coupling the antenna to the transmitting side and to the receiving one. The branching mainly consists of one filter fro the transmission and another filter for the reception, coupled at the antenna port by means of a duplexer. At Tx side an optional attenuator permits to lower the output power by 0/20 dB via software. The attenuator is placed in the transceiver for 38 GHz version only. The branching unit is available in the following versions: •

1+0 (see Fig.155)

•

1+1, hot stand–by 1 antenna with RF relay (see Fig.156)

This configuration is used up to 26 GHz. •

1+1, hot stand–by 1 antenna with hybrid (see Fig.157)

This configuration is used from 28 GHz up to 38 GHz. •

1+1 frequency diversity (see Fig.158).

1+1 hot stand–by version, comprises an electromechanical RF relay in Tx side for transmitter selection and a splitter in Rx side. Two 0/50 dB attenuators can be used in alternative to the electromechanic selector switch (see Fig.157). In this case the two 0/50 dB attenuators take place in the transceivers. Controls for transmitter selection to be coupled to the antenna are from main controller within the LIM. It processes the switching criteria according to the following priority: Tab.30 - Switching criteria priority Priority

From highest to lowest

28.6

Level

Definition

1

Power supply alarm

2

Local manual forcing

3

Cable open/Cable short

4

ODU failure/modulator failure

5

ATPC out of order

6

Preferential branch presetting

ATPC

The automatic transmit power control function (ATPC) is available in the equipment as a standard feature. The range is 20 dB implemented in 1 dB step. ATPC allows to improve the system performance. The most important impacts are: •

interference reduction;

•

power consumption reduction in nominal propagation condition.

The ATPC functional block diagram is shown in Fig.160.

West side The value of the received Rx power is extracted inside ODU Rx section and then transmitted to RIM making use of a 388 kbit/s frame forwarded through a 5,5 MHz carrier. Such a value is then inserted into the RFCOH frame to be sent to remote terminal.

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233

East side The remote terminal drops from the RFCOH frame the PRx information and then sends it to the ODU through a 388 kbit/s frame forwarded by a 17,5 MHz carrier. The value of the transmitted power is regulated by the ATPC processor circuit.

28.7

RF LOOP (OPTION)

The RF loop is realised inside the transceiver before the branching, routing the transmitted signal to the receiver (see Fig.154). To avoid interference, the far RF transmitter is automatically switched–off during the RF loop activity. The transmission signal is dropped from the transmitter by means of a coupler. Upon receiving a control from SCT/NMS5UX programs a shift oscillator is switched–on thus generating the Tx/Rx separation frequency signal. This latter is sent to one mixer along with the Tx signal. The beating between the two permits to convert the Tx frequency to Rx and then to convoy the Rx frequency to the Rx side through a coupler. Warning If RF loop is enabled on the remote terminal then the loop must be timed–out to avoid a permanent loss of connection with the remote terminal. Time–out presetting is performed by SCT/LCT or NMS5UX programs (for details see relevant documentation). The RF loop must be enabled on one terminal at the time. In case of 1+1, Tx and Rx branches must be forced on the looped branch. RF loop can be checked only at max PTX. If ATPC is active output power or disable ATPC and set PTx at maximum values.

28.8

FREQUENCY REUSE

The frequency reuse system makes use of an Xpic circuit (Cross Polar Interference Canceller) and allows the coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries an individual STM–1 or 2xSTM–1. The system consists of two fully independent transceivers, and a crosspolarized antenna with polarization H connected to one transceiver and polarization V connected to the other transceiver. The initial co–channel interference is featured by the antenna cross polar discrimination factor (example 29 dB). This value may be not sufficient for frequency reuse system making use of modulations ≥ 32QAM. After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitable discrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must be used. As shown in Fig.161, the received signals at the IF receiver outputs are processed by the demodulator placed on the copolar branch as well as by the canceller annexed to the demodulator processing the signals from the cross polar polarization. This process operates in base band time domain. An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas a circuit similar to the equalizer, processes the signal on the cross route. Such a signal, summed with the one available at the equalizer output permits the cancelling of the interference contained in the copolar signal.

234

ALS - MN.00164.E - 001

Transceiver

Branching BNC connector for PRx measurement N connector for IDU cable

Transceivers

Branching

BNC connectors for PRx measuerment

N connectors for IDU cable

Fig.153 - Lower view of the ODU 1+1 and ODU 1+0 units

ALS - MN.00164.E - 001

235

Fig.154 - Block diagram of the ODU

236

ALS - MN.00164.E - 001

140 MHz

to/from IDU

5.5 MHz

DEM

17.5 MHz 17.5 MHz

REC

388 kbit/s

Overcurr. protec.

388 kbit/s

MUX DEMUX

PRx Measure

1xSTM-1

2xSTM-1

Overcurr. protec.

MOD 5.5 MHz

AGC

12.5 MHz

Cable interface

VTAL

& cont. μP

manag.

Alarm

330 MHz

Overcurr. protec.

140 MHz

+5 V

Alarm commands loops

IF Tx

PSU AL

-12 V

+12 V

Alarm detect.

IF Rx

IF Tx

IF Rx

AGC

RF LO

RF

fromμP

RF Loop

da

μP

ATPC

Shifter

fromμP

LNA

fromμP

0/20 dB 380GHz solo

RF to branching

RF from branching

Tx

to/from transceiver

Antenna side

Rx

Fig.155 - 1+0 branching

From Tx1 Switching control From Tx2

Antenna Duplexer To Rx1

To Rx2

Fig.156 - 1+1 hot stand–by branching, 1 antenna (RF relay version)

ALS - MN.00164.E - 001

237

0/50 dB Tx1

Branching side

T Switching command from μP

Rx1

Antenna side

50/0 dB Tx2

T Switching command from μP

Rx2

Fig.157 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid)

238

ALS - MN.00164.E - 001

0/20 dB optional

T

from

command

A

0/20 dB optional

T

from

command

A

Fig.158 - 1+1 branching frequency diversity

48 Vdc

Rx Telemetering from IDU to ODU

5.5 MHz

Tx Telemitering from ODU to IDU

Rx signal

Tx signal

17.5 MHz

140 MHz

330 MHz

Fig.159 - Signals present on the IDU–ODU coaxial cable

ALS - MN.00164.E - 001

239

ODU STM-1

RFCOH

Tx

MOD

PRx meas.

Rx

ODU B R A N C H I N G

B R A N C H I N G

Rx

DEM

RFCOH

PRx meas.

ATPC Tx

RIM

RIM West side

East side Fig.160 - ATPC functional block diagram

Rx1

IF DEM

data H

+

H XPIC RIM1 RIM2 XPIC V

DEM

Rx2

+

data V

IF

Fig.161 - Frequency reuse system

240

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Section 5. COMPOSITION

29

IDU COMPOSITION

29.1

GENERAL

IDU SDH consists of the following versions: •

IDU SDH modular

•

IDU SDH compact

Each module is available in different versions and is composed of various subunits. Warning: Modules mentioned in this document are those that, following a failure, are considered as replaceable parts.

29.2

COMPOSITION OF IDU SDH MODULAR

The IDU consists of LIM/RIM/CONTROLLER modules made-up in different versions. Each module is identified through a label (see Fig.162) placed inside indicating the correspondent P/N. The P/Ns are the following: -

LIM

D12091 capacity 2xSTM-1 electrical interface D12092 capacity 4xSTM-1 electrical interface D12106-02 capacity 2xSTM-1 electrical/optical interface without plug-in D12107-02 capacity 4xSTM-1 electrical/optical interface without plug-in

-

E01409

plug-in module with Laser S11 interface

-

S04002

plug-in module with electrical STM-1 interface and 1.0/2.3 connector

-

RIM

D16027 (with Xpic) D16026 (without Xpic)

-

CONTROLLER

D12078 option RJ45

ALS - MN.00164.E - 001

241

ALS IDU

ALS-C IDU

Fig.162 - IDU P/N

29.3

COMPOSITION OF IDU SDH COMPACT

IDU is available in different versions; each of them is identified by a part number code. A label, on the top left side of IDU mechanical structure contains this part number. The available versions are:

242

-

IDU 1+0 2xSTM-1 electrical interface

GD0366

-

IDU 1+0 2xSTM-1 optical interface

GD0367.

ALS - MN.00164.E - 001

30

ODU COMPOSITION

30.1

GENERAL

SDH ODU is available in ALS and AS versions.

30.2

ODU AS COMPOSITION

The ODU AS consists of mechanical structure formed by two shells. One shell houses the transceiver module, the other houses the branching module. Both the transceiver and the branching are available in different versions depending on the operating band, the antenna configuration, the channel filters etc..... To the purpose on the branching mechanical structure is available a label showing the ODU most significant parameters and the P/N of the whole unit. Fig.163 shows label position whereas Fig.164 shows a typical example of the parameters evidenced by the label.

ODU serial nr. plate

ODU type plate (see next figure) Fig.163 - Label positions - ODU AS

ALS - MN.00164.E - 001

243

AS ODU

ALS ODU

Fig.164 - Equipment most significant data

30.3

ALS ODU COMPOSITION

IDU is made up of a mechanical structure consisting of two cases. One case houses the transceiver module and the other houses the branching module. Both transceiver and branching are available in different versions depending on the operating band, antenna configuration, channel filters, etc.... On branching mechanical structure a label is provided; it shows the most important ODU parameters and the part number of the whole unit.

244

ALS - MN.00164.E - 001

Transceiver

P/N transceiver label Branching

P/N ODU position

Transceiver

P/N transceiver label P/N ODU position

Branching

Fig.165 - Label positions - ODU ALS

ALS - MN.00164.E - 001

245

246

ALS - MN.00164.E - 001

Section 6. SAFETY RULES AND EQUIPMENT DISPOSAL

31

FIRST AID FOR ELECTRICALSHOCK AND SAFETY RULES

31.1

FIRST AID FOR ELECTRICAL SHOCK

Do not touch the patient with bare hands until the circuit has been opened. Open the circuit by switching off the line switches. If that is not possible protect yourself with dry material and free the patient from the conductor.

31.1.1

Artificial respiration

It is important to start mouth resuscitation at once and to call a doctor immediately. suggested procedure for mouth to mouth resuscitation method is described in the Tab.31.

31.1.2

Treatment of burns

This treatment should be used after the patient has regained consciousness. It can also be employed while artificial respiration is being applied (in this case there should be at least two persons present).

Warning •

Do not attempt to remove clothing from burnt sections.

•

Apply dry gauze on the burns.

•

Do not apply ointments or other oily substances.

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247

Tab.31 - Artificial breathing Phase

Description

1

Lay the patient on his back with his arms parallel to the body. If the patient is laying on an inclined plane, make sure that his stomach is slightly lower than his chest. Open the patients mouth and check that there is no foreign matter in mouth (dentures, chewing gum, etc.).

Figure

Kneel beside the patient level with his head. Put an hand under the patient’s head and one under his neck. 2

3

Lift the patient’s head and let it recline backwards as far as possible.

Shift the hand from the patient’s neck to his chin and his mouth, the index along his jawbone, and keep the other fingers closed together. While performing these operations take a good supply of oxygen by taking deep breaths with your mouth open.

With your thumb between the patient’s chin and mouth keep his lips together and blow into his nasal cavities.

4

248

5

While performing these operations observe if the patient’s chest rises. If not it is possible that his nose is blocked: in that case open the patient’s mouth as much as possible by pressing on his chin with your hand, place your lips around his mouth and blow into his oral cavity. Observe if the patient’s chest heaves. This second method can be used instead of the first even when the patient’s nose is not obstructed, provided his nose is kept closed by pressing the no strils together using the hand you were holding his head with. The patient’s head must be kept sloping backwards as much as possible.

6

Start with ten rapid expirations, hence continue at a rate of twelve/fifteen expirations per minute. Go on like this until the patient has regained consciousness, or until a doctor has ascertained his death.

ALS - MN.00164.E - 001

31.2

SAFETY RULES

When the equipment units are provided with the plate, shown in Fig.166, it means that they contain components electrostatic charge sensitive.

Fig.166 - Indication of components sensitive to electrostatic charges In order to prevent the units from being damaged while handling, it is advisable to wear an elasticised band (Fig.167) around the wrist ground connected through coiled cord (Fig.168).

Fig.167 - Elasticised band

Fig.168 - Dedicated cord

The units showing the label, shown in Fig.169, include laser diodes and the emitted power can be dangerous for eyes; avoid exposure in the direction of optical signal emission.

Fig.169 - Laser indication

ALS - MN.00164.E - 001

249

31.3

CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical & Electronic Equipment)

(Applicable in the European Union and other European countries with separate collection systems). This marking shown on the product (see Fig.170) or its literature indicates that it should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household s should either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling. Business s should their supplier and check the and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal.

Fig.170 - WEEE Symbol – 2002/96/CE EN50419

31.4

INTERNAL BATTERY

Inside the equipment, in IDU unit, there is a lithium battery. CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to law.

250

ALS - MN.00164.E - 001

32

LIST OF FIGURES

Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version............................................................ 20 Fig.2 – 1xSTM-1 and 2xSTM-1 protected version ............................................................... 21 Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version with RIM XPIC ............................................ 21 Fig.4 – 4xSTM1 optical interface protected version and RIM XPIC......................................... 22 Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS .................................... 23 Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS .................................... 24 Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or frequency diversity versions with ODU AS.......................................................................... 25 Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS ............................................ 26 Fig.9 – Interconnections for frequency reuse - 1+0 version ................................................. 28 Fig.10 – Interconnections for frequency reuse - 1+1 version ............................................... 28 Fig.11 - Grounding connection ........................................................................................ 30 Fig.12 – Typical connector position (IDU ALS) ................................................................... 32 Fig.13 - Connectors position (IDU ALS-C) ......................................................................... 34 Fig.14 - Pin-out Tributary IN/OUT 50 SCSI........................................................................ 35 Fig.15 - Antisliding strip ................................................................................................. 41 Fig.16 - 60–114 mm pole ing plate fixing ............................................................... 42 Fig.17 - Adapting kit for 219 mm pole .............................................................................. 43 Fig.18 - Possible mounting position.................................................................................. 44 Fig.19 - Possible positions of the with ODU fast locking mechanism .......................... 45 Fig.20 - Installation onto the pole of the ing plate ................................................... 46 Fig.21 - Circulator for 1+1 frequency diversity systems ...................................................... 47 Fig.22 - Band-it pole fixing ............................................................................................. 48 Fig.23 - ODU reference tooth .......................................................................................... 48 Fig.24 - Final ODU assembly of 1+1 hot stand-by version ................................................... 49 Fig.25 - Final assembly of 1+1 frequency diversity system.................................................. 50 Fig.26 - ODU grounding ................................................................................................. 51 Fig.27 - Wall ing plate ......................................................................................... 55 Fig.28 - with ODU fast locking mechanism ............................................................ 56 Fig.29 - Possible mounting positions ................................................................................ 57 Fig.30 - Installation onto the wall of the ing plate.................................................... 58 Fig.31 - Circulator of 1+1 frequency diversity system......................................................... 59 Fig.32 - Position of the ODU body: 1+0 system - depending on the polarisation. 1+1 hot stand-by system - polarisation is always vertical (handle always at the left side) 1+1 frequency diversity system - polarisation is always horizontal (handle always at the right side) 60 Fig.33 - ODU body reference tooth .................................................................................. 60

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Fig.34 - Final assembly of 1+1 hot stand-by version .......................................................... 61 Fig.35 - Final assembly of 1+1 frequency diversity version.................................................. 62 Fig.36 - ODU grounding ................................................................................................. 63 Fig.37 - Centering ring position ....................................................................................... 68 Fig.38 - Antislide strip.................................................................................................... 69 Fig.39 - mount on pole....................................................................................... 70 Fig.40 - ing system position ................................................................................. 71 Fig.41 - Hole E .............................................................................................................. 71 Fig.42 - Antenna installation on pole ..................................................................... 72 Fig.43 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisation is always horizontal. Handle at the right side...................................................................... 72 Fig.44 - system for ODU housing and reference tooth in evidence ............................ 73 Fig.45 - ODU body reference tooth .................................................................................. 74 Fig.46 - ODU housing final position for vertical polarization ................................................. 74 Fig.47 - ODU housing final position for horizontal polarization.............................................. 75 Fig.48 - Hybrid and polarization disk ................................................................................ 76 Fig.49 - Circulator and polarization disk............................................................................ 77 Fig.50 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 78 Fig.51 - Hybrid mount on pole ............................................................................. 79 Fig.52 - ODU final position for 1+1 version ....................................................................... 80 Fig.53 - Final ODU assembly of 1+1 frequency diversity version .......................................... 80 Fig.54 - Vertical and horizontal adjustments ..................................................................... 81 Fig.55 - Antenna aiming block......................................................................................... 82 Fig.56 - ODU grounding ................................................................................................. 83 Fig.57 - 1+0 pole mounting ............................................................................................ 88 Fig.58 - ODU body reference tooth .................................................................................. 89 Fig.59 - Position of the ODU body: 1+0 system - depending on the polarisation. 1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side) 1+1 frequency diversity system - polarisation is always vertical (handle always at the left side) 89 Fig.60 - 1+0 ..................................................................................................... 90 Fig.61 - ODU final position.............................................................................................. 91 Fig.62 - Antenna aiming ................................................................................................. 91 Fig.63 - ODU grounding ................................................................................................. 92 Fig.64 - Hybrid and polarization disk ................................................................................ 93 Fig.65 - Circulator and polarisation disk............................................................................ 94 Fig.66 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 95 Fig.67 - Hybrid/circulator installation ............................................................................... 96 Fig.68 - Installation of 1+1 hot stand-by ODUs.................................................................. 97 Fig.69 - Installation of 1+1 frequency diversity ODUs......................................................... 97 Fig.70 - ODU 1+1 and 1+0 ........................................................................................... 100 Fig.71 - ODU 1+0 and 1+1 ........................................................................................... 101 Fig.72 - Collar mounting ODU 1+0 and 1+1 .................................................................... 102 Fig.73 - Side view (1+1) .............................................................................................. 103

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Fig.74 - Rear view (1+1) .............................................................................................. 103 Fig.75 - Side view (1+0) .............................................................................................. 104 Fig.76 - Rear view (1+0) .............................................................................................. 104 Fig.77 - Details for transceiver mounting on the branching shell ........................................ 105 Fig.78 - Antenna bend ................................................................................................. 105 Fig.79 - ODU installation (top view and front view) .......................................................... 106 Fig.80 - Grounding cord connection ............................................................................... 106 Fig.81 - Wave guide fixing, cable connection ................................................................... 107 Fig.82 - Installation on pole of the outdoor unit (1+0) ...................................................... 108 Fig.83 - Installation on pole of 3 m antenna of two ODU using two polarization.................... 109 Fig.84 - Sun–screen .................................................................................................... 109 Fig.85 - Checking the antenna polarisation ..................................................................... 112 Fig.86 - Rear view of the antenna.................................................................................. 113 Fig.87 - Pole ing kit........................................................................................... 114 Fig.88 - ing bracket mounting on the antenna rear side ......................................... 115 Fig.89 - ing bracket mounting ............................................................................ 116 Fig.90 - Antenna fixing to the pole................................................................................. 117 Fig.91 - Alignment adjustment kit mounting ................................................................... 118 Fig.92 - 1+1 branching mounting on ing bracket ................................................... 119 Fig.93 - 1+0 branching mounting on ing bracket ................................................... 120 Fig.94 - ODU mounting in 1+1 configuration ................................................................... 121 Fig.95 - ODU mounting in 1+0 configuration ................................................................... 122 Fig.96 - Horizontal alignment adjustment ....................................................................... 123 Fig.97 - Vertical alignment adjustment ........................................................................... 124 Fig.98 - Outdoor unit with covering................................................................................ 125 Fig.99 - Checking the antenna alignment........................................................................ 126 Fig.100 - IDU-ODU cables ............................................................................................ 128 Fig.101 - IDU-ODU cables ............................................................................................ 128 Fig.102 - XPIC SMA to SMA cables ................................................................................. 128 Fig.103 - XPIC SMA to SMA cables ................................................................................. 128 Fig.104 - IDU-ODU cables ............................................................................................ 130 Fig.105 - IDU-ODU cables ............................................................................................ 130 Fig.106 – Connection cables ......................................................................................... 131 Fig.107 – Connection cables ......................................................................................... 131 Fig.108 - Substitution of ODU in 1+1 frequency diversity system ....................................... 133 Fig.109 – Decoupling - Step 1 .............................................................................. 139 Fig.110 - LAN1 port configuration on local and on remote equipment ................................. 150 Fig.111 - Internal port configuration on local and on remote equipment.............................. 151 Fig.112 - –VLAN table for transmission of two LANs segregated between them ................... 152 Fig.113 – setup window for equipment controller application ................ 168 Fig.114 – Confirm of the operation ................................................................................ 168 Fig.115 – progress ........................................................................................ 168 Fig.116 – Equipment software version window ................................................................ 169

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Fig.117 – Radio switch window...................................................................................... 171 Fig.118 – Example of channel arrangements on the same route......................................... 178 Fig.119

- LIM Ethernet block diagram............................................................................ 191

Fig.120 - LIM block diagram, RST mode - 2x2STM-1 version - from radio side to line side ..... 192 Fig.121 - LIM - 4xSTM-1 mode...................................................................................... 192 Fig.122 – RIM with XPIC into 1RU IDU ALS ..................................................................... 197 Fig.123 – LIM block diagram, RST mode - 1xSTM-1 operation ........................................... 206 Fig.124 – LIM block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side .................................................................................................................... 207 Fig.125 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side 208 Fig.126 – LIM - 4xSTM-1 operation mode ....................................................................... 208 Fig.127 – Synchronisation block diagram ........................................................................ 209 Fig.128 – Modemodulator block diagram ........................................................................ 210 Fig.129 – Frequency reuse system arrangement .............................................................. 211 Fig.130 – Power supply and cable interface block diagram ................................................ 211 Fig.131 – Main and peripheral controller connection ......................................................... 212 Fig.132 – Full-IP protocol stack ..................................................................................... 212 Fig.133 – OSI+IP protocol stack.................................................................................... 213 Fig.134 – IDU telemetry ............................................................................................... 213 Fig.135 – IDU loops ..................................................................................................... 214 Fig.136 - Front of SDH IDU modular ...................................................................... 215 Fig.137 – Line interface block diagram, RST mode - 1xSTM-1 operation (IDU SDH compact) . 216 Fig.138 – Line interface block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side - IDU SDH compact ............................................................................. 217 Fig.139 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side (IDU SDH compact) ...................................................................................... 218 Fig.140 – Modemodulator block diagram ........................................................................ 219 Fig.141 – Power supply and cable interface block diagram ................................................ 220 Fig.142 – Main and peripheral controller connection ......................................................... 221 Fig.143 – Full-IP protocol stack ..................................................................................... 221 Fig.144 – OSI+IP protocol stack.................................................................................... 222 Fig.145 – IDU telemetry ............................................................................................... 222 Fig.146 – IDU loops ..................................................................................................... 223 Fig.147 - Front of IDU SDH compact...................................................................... 224 Fig.148 - 1+0 ODU ...................................................................................................... 228 Fig.149 - 1+1 ODU with branching ................................................................................ 228 Fig.150 - ODU block diagram ........................................................................................ 229 Fig.151 - ATPC operation.............................................................................................. 230 Fig.152 - Frequency reuse system ................................................................................. 230 Fig.153 - Lower view of the ODU 1+1 and ODU 1+0 units................................................. 235 Fig.154 - Block diagram of the ODU ............................................................................... 236 Fig.155 - 1+0 branching .............................................................................................. 237 Fig.156 - 1+1 hot stand–by branching, 1 antenna (RF relay version).................................. 237

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Fig.157 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid) ............................. 238 Fig.158 - 1+1 branching frequency diversity ................................................................... 239 Fig.159 - Signals present on the IDU–ODU coaxial cable ................................................... 239 Fig.160 - ATPC functional block diagram......................................................................... 240 Fig.161 - Frequency reuse system ................................................................................. 240 Fig.162 - IDU P/N........................................................................................................ 242 Fig.163 - Label positions - ODU AS ................................................................................ 243 Fig.164 - Equipment most significant data ...................................................................... 244 Fig.165 - Label positions - ODU ALS............................................................................... 245 Fig.166 - Indication of components sensitive to electrostatic charges.................................. 249 Fig.167 - Elasticised band............................................................................................. 249 Fig.168 - Dedicated cord .............................................................................................. 249 Fig.169 - Laser indication ............................................................................................. 249 Fig.170 - WEEE Symbol – 2002/96/CE EN50419 .............................................................. 250

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33

LIST OF TABLES

Tab.1 - Cable and connector characteristics .......................................................................29 Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s ...............................................................32 Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface.....................................32 Tab.4 – in/out connector pin-out for external alarm input and alarm transfer to outside....33 Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU).....33 Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection..........................................33 Tab.7 - Pin out of IDU compact RS232 connector................................................................34 Tab.8 - Tributary IN/OUT - 75 Ohm ..................................................................................35 Tab.9 - Tributary IN/OUT - 120 Ohm ................................................................................36 Tab.10 - Torques for tightening screws..............................................................................39 Tab.11 - Torques for tightening screws..............................................................................40 Tab.12 - Torques for tightening screws..............................................................................53 Tab.13 - Torques for tightening screws..............................................................................53 Tab.14 - Torques for tightening screws..............................................................................66 Tab.15 - Torques for tightening screws..............................................................................87 Tab.16 – Configuration: XPIC 1+0 .................................................................................. 140 Tab.17 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity .................. 141 Tab.18 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity143 Tab.19 - Manual operations and relevant effects on traffic in 1+0 link (ODU AS/ALS) ............ 153 Tab.20 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU ALS): problems in Rx/Tx occur if manual operation is performed on the active branch............................................................................................154 Tab.21 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU AS): problems in Rx/Tx occur if manual operation is performed on the active branch ...................................................................................................... 155 Tab.22 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna/space diversity) and preventive actions: problems in Rx/Tx occur if manual operation is performed on active branch .........................................................................................................................156 Tab.23 – System version composition ............................................................................. 166 Tab.24 – Cable examples .............................................................................................. 178 Tab.25 - Tx switch........................................................................................................ 178 Tab.26 - Rx switch ....................................................................................................... 179 Tab.27 - Possible optical interfaces ................................................................................. 181 Tab.28 - Switch characteristics....................................................................................... 183 Tab.29 - Service and interfaces ............................................................................... 200 Tab.30 - Switching criteria priority.................................................................................. 233 Tab.31 - Artificial breathing ........................................................................................... 248

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34

ASSISTANCE SERVICE

The assistance service provided by Siae Microelettronica will be in compliance, if stipulated, to what specified in the Agreement of Software Maintenance. To exploit this service, fill in all its parts the Module for the notification of bad SW operation (RQ.00961) and send it to the following address: SIAE Microelettronica S.p.A via Michelangelo Buonarroti, 21 20093 Cologno Monzese Milano - Italy www.siaemic.it Fax + (39) 02 25391585 e-mail [email protected]

34.1

RQ.00961 MODULE

Each RQ916 module can contain at most one signalling. The information required for the signalling of the bad operation. Warning. The compiling of the parts General Information (Siae only), Trouble notified by, Reserved to Siae Department and Validation manager are at charge of the Siae personnel.

Section – Trouble Identification -

SIAE product name. Identifier or SIAE code of the product whose bad operation has been detected.

-

Version. Version of the sw product whose bad operation has been detected

-

Documentation Type. Identifier of the document where the problem has been detected.

-

Revision. Revision of the document where the problem has been detected.

-

Volume N. Number of the volume of the document where the problem has been detected.

-

Page N. Number of the page, into the volume, where the problem has been detected.

-

Typology. Severity of the detected bad operation: -

Critical, if it prevents the use of a main functionality of the product;

-

Important, if it prevents the use of a secondary functionality of the product;

-

Disturbing, if occasionally and in difficultly reproducible conditions, it prevents the use of a main functionality of the product;

-

Minor, if very seldom it prevents the use of a secondary functionality without important consequences;

-

Suggestion, if no functionality of the product is damaged but some aspects (e.g.: interface) can be improved.

-

Recurrent. Possibility (Yes) or not (No) to cause the bad operation after the same sequence of inputs given to the product.

-

Repeatable. Possibility (Yes) or not (No) to reproduce the detected bad operation.

-

Annexes. Possibility (Yes) or not (No) of annexed to the NM and their possible number.

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260

-

Title. Title of the bad operation.

-

Description. Clear and concise description of the bad operation, comprehensive of the edge conditions and, when possible and applicable, of the reference to the test (identifier and version of the technical documentation, test identifier).

ALS - MN.00164.E - 001

GENERAL INFORMATION (SIAE ONLY) Object Submitted

Software

Documentation

Number

Hardware

Distribution List: Quality Assurance

TROUBLE NOTIFIED BY Siae Operator Name

_______________________________

Date

Customer Report Ref.

_______________________________

Date

_______________________________

Customer Name Reference _______________________________

Tel

_______________________________

Company/Dept.

e-mail

_______________________________

_______________________________

Contract N

_______________________________

Address TROUBLE IDENTIFICATION

SW/FW failures SIAE product name

___________________________________________________

Version

______

Documentation type

___________________________________________________

Revision

______

Volume N.

___________________________________________________

Documentation

Page N. Typology

Critical

Important

Recurrent

Yes

No

Repeatable

Yes

No

Annexes

Yes: N°

No

Disturbing

Minor

Suggestion

Title: Description (including enviranmental conditions):

RESERVED TO SIAE DEPARTMENT Trouble

Accepted_Open Reasons

Rejected Notes Analysis performed by

Date

Expected Closing Date

Date

Approved by

CORRECTIVE ACTION DESCRIPTION

FIXED VALIDATION MANAGER

Executed by MN

Closed Open

Verified by

Date

Notes

Quality Record Module TROUBLE REPORT Siae Microelettronica all rights reserved.

Issued by Terzo L.

Approved by Gaviraghi S. Document Ref. RQ.00961

Date 24/09/02

Page 1/1 Rev/Ver 003