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    BSC6900 GSM

    V900R012C01

    Installation Guide

    Issue 04

    Date 2011-03-07

    HUAWEI TECHNOLOGIES CO., LTD.

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    Copyright Huawei Technologies Co., Ltd. 2011. All rights reserved.

    No part of this document may be reproduced or transmitted in any form or by any means without prior written

    consent of Huawei Technologies Co., Ltd.

    Trademarks and Permissions

    and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

    All other trademarks and trade names mentioned in this document are the property of their respective holders.

    Notice

    The purchased products, services and features are stipulated by the contract made between Huawei and the

    customer. All or part of the products, services and features described in this document may not be within the

    purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representations

    of any kind, either express or implied.

    The information in this document is subject to change without notice. Every effort has been made in the

    preparation of this document to ensure accuracy of the contents, but all statements, information, and

    recommendations in this document do not constitute the warranty of any kind, express or implied.

    Huawei Technologies Co., Ltd.

    Address: Huawei Industrial Base

    Bantian, Longgang

    Shenzhen 518129

    People's Republic of China

    Website: http://www.huawei.com

    Email: [email protected]

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    About This Document

    Overview

    This document describes how to install the BSC6900 UMTS devices, including the externalpower cables, PGND cables, boards, signal cables, cabinet accessories, Local Maintenance

    Terminal (LMT) PC, and alarm box. It also describes how to check the hardware installation.

    In addition, the document provides the method of making connectors for the power cables and

    signal cables, the method of making and attaching engineering labels, and the requirements for

    the operational environment of the equipment.

    Product Version

    The following table lists the product version related to this document.

    Product Name Product Version

    BSC6900 V900R012C01

    Intended Audience

    This document is intended for installation personnel.

    Organization

    1 Changes in the BSC6900 GSM Installation Guide

    This chapter describes the changes in the BSC6900 GSM Installation Guide.

    2 Preparations for Installation

    Before the BSC6900 installation, you need to arrange the installation tools, unpack the packing

    cases, and check the items.

    3 Procedures for Installation

    BSC6900 GSM

    Installation Guide About This Document

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    This chapter describes how to install the BSC6900 and its accessories, power cables and PGND

    cables, OMUa boards, signal cables, Local Maintenance Terminal (LMT) PC, and alarm box.

    4 Installing the Power Cables and PGND Cables

    This chapter describes how to install the power cables and PGND cables between theBSC6900 and the power distribution frame (PDF) and also how to install the PGND cables

    between the cabinets of the BSC6900.

    5 Checking and Setting the Subrack DIP Switch

    This chapter describes how to check and set the DIP switch of a subrack. In general, the subrack

    is installed in the cabinet before delivery.

    6 Installing Boards and Setting Board DIP Switches

    The boards except the OMUa board are installed in the subrack before delivery. If the EIUa/

    PEUa board is installed in the cabinet, you need to check and set the DIP switches of the EIUa/

    PEUa board. The OMUa should be installed on site.

    7 Installing the Signal Cables

    This chapter describes how to install the signal cables according to the layout requirements. The

    signal cables to be installed include clock signal cables, Ethernet cables, E1/T1 cables and optical

    cables.

    8 Installing the Local Maintenance Terminal (LMT) PC and the Alarm Box

    This chapter describes how to install the LMT PC and the alarm box. If the LMT PC and the

    alarm box are installed in the maintenance room, install them together with the BSC6900

    equipment.

    9 Attaching the Engineering Labels to the Cables

    This chapter describes how to attach engineering labels to the power, PGND, and signal cables

    after the cables are installed

    10 Checking the Hardware Installation

    This chapter describes how to check the hardware installation. The hardware consists of the

    cabinet, cables, Local Maintenance Terminal (LMT) PC, and alarm box. In addition, you should

    check the installation environment.

    11 Installation Illustrations

    This chapter describes the exploded views of cabinet, cabinet assembly diagrams, and cable

    connections of cabinets.

    12 Hardware Installation Records

    The hardwareinstallation records provide templates for recording the information about the

    BSC6900 hardware installation.

    Conventions

    Symbol Conventions

    The symbols that may be found in this document are defined as follows.

    About This Document

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    Symbol Description

    Indicates a hazard with a high level of risk, which if not

    avoided, will result in death or serious injury.

    Indicates a hazard with a medium or low level of risk, which

    if not avoided, could result in minor or moderate injury.

    Indicates a potentially hazardous situation, which if not

    avoided, could result in equipment damage, data loss,

    performance degradation, or unexpected results.

    Indicates a tip that may help you solve a problem or save

    time.

    Provides additional information to emphasize or supplement

    important points of the main text.

    General Conventions

    The general conventions that may be found in this document are defined as follows.

    Convention Description

    Times New Roman Normal paragraphs are in Times New Roman.

    Boldface Names of files, directories, folders, and users are inboldface. For example, log in as user root.

    Italic Book titles are in italics.

    Courier New Examples of information displayed on the screen are in

    Courier New.

    Command Conventions

    The command conventions that may be found in this document are defined as follows.

    Convention Description

    Boldface The keywords of a command line are in boldface.

    Italic Command arguments are in italics.

    [ ] Items (keywords or arguments) in brackets [ ] are optional.

    { x | y | ... } Optional items are grouped in braces and separated by

    vertical bars. One item is selected.

    [ x | y | ... ] Optional items are grouped in brackets and separated by

    vertical bars. One item is selected or no item is selected.

    BSC6900 GSM

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    Convention Description

    { x | y | ... }* Optional items are grouped in braces and separated by

    vertical bars. A minimum of one item or a maximum of all

    items can be selected.

    [ x | y | ... ]* Optional items are grouped in brackets and separated by

    vertical bars. Several items or no item can be selected.

    GUI Conventions

    The GUI conventions that may be found in this document are defined as follows.

    Convention Description

    Boldface Buttons, menus, parameters, tabs, window, and dialog titles

    are in boldface. For example, click OK.

    > Multi-level menus are in boldfaceand separated by the ">"

    signs. For example, choose File> Create> Folder.

    Keyboard Operations

    The keyboard operations that may be found in this document are defined as follows.

    Format Description

    Key Press the key. For example, press Enterand press Tab.

    Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

    +Ameans the three keys should be pressed concurrently.

    Key 1, Key 2 Press the keys in turn. For example, pressing Alt, Ameans

    the two keys should be pressed in turn.

    Mouse Operations

    The mouse operations that may be found in this document are defined as follows.

    Action Description

    Click Select and release the primary mouse button without moving

    the pointer.

    Double-click Press the primary mouse button twice continuously and

    quickly without moving the pointer.

    Drag Press and hold the primary mouse button and move the

    pointer to a certain position.

    About This Document

    BSC6900 GSM

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    Contents

    About This Document...................................................................................................................iii

    1 Changes in the BSC6900 GSM Installation Guide..............................................................1-1

    2 Preparations for Installation....................................................................................................2-1

    2.1 Installation Tools.............................................................................................................................................2-2

    2.2 Unpacking the Cases and Checking the Items................................................................................................2-2

    3 Procedures for Installation.......................................................................................................3-1

    4 Installing the Power Cables and PGND Cables..................................................................4-1

    4.1 Power Cables and PGND Cables to Be Installed............................................................................................4-2

    4.2 Connections of the Power Cables and PGND Cables.....................................................................................4-2

    4.3 Principlesof Installing the Power Cables and PGND Cables.........................................................................4-3

    4.4 Installing the Power Cables and PGND Cable Between the BSC6900 and the PDF.....................................4-4

    4.4.1 Installing the Power Cables and PGND Cables Between the BSC6900 and the PDF (Overhead Cabling)

    .........................................................................................................................................................................4-4

    4.4.2 Installing the Power Cables and PGND Cables Between the BSC6900 and the PDF (Underfloor Cabling)

    .........................................................................................................................................................................4-7

    4.5 Installing the PGND Cables Between Adjacent Cabinets.............................................................................4-10

    4.6 Checking the Power-On Performance...........................................................................................................4-11

    5 Checking andSetting the Subrack DIP Switch...................................................................5-1

    6 Installing Boards and Setting Board DIP Switches.............................................................6-1

    6.1 Safety Precautions for Board Installation........................................................................................................6-2

    6.2 Installing the OMUa Boards...........................................................................................................................6-2

    6.3 Checking and Setting the DIP Switch on the Board.......................................................................................6-4

    6.4 DIP Switches on the BSC6900 Boards...........................................................................................................6-5

    6.4.1 DIP Switches on the EIUa Board...........................................................................................................6-5

    6.4.2 DIP Switch on the PAMU Board...........................................................................................................6-8

    6.4.3 DIP Switches on the PEUa Board..........................................................................................................6-8

    6.4.4 DIP Switch on the PFCU Board...........................................................................................................6-11

    6.4.5 Pins on the PFCB Board.......................................................................................................................6-13

    7 Installing the Signal Cables.....................................................................................................7-1

    7.1 Signal Cables to Be Installed..........................................................................................................................7-3

    7.2 Principles of Installing the Signal Cables.......................................................................................................7-5

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    7.3 Installing the Inter-TNUa Cables....................................................................................................................7-8

    7.4 Installing the Clock Signal Cables................................................................................................................7-12

    7.4.1 Installing the Y-Shaped Clock Cables.................................................................................................7-13

    7.4.2 Installing the BITS Clock Signal Cables..............................................................................................7-15

    7.5 Installing the Ethernet Cables.......................................................................................................................7-18

    7.5.1 Arranging the Ethernet Cables.............................................................................................................7-18

    7.5.2 Installing the Inter-SCUa Cables Between Different Subracks...........................................................7-19

    7.5.3 Installing the Ethernet Cables Between the OMUa Board and the LAN.............................................7-27

    7.5.4 Installing the Ethernet Cables Between the XPUa/XPUb Board and the CBC...................................7-29

    7.5.5 Installing the Ethernet Cables Between the FG2a/FG2c Board and the Other Equipment..................7-31

    7.6 Installing the E1/T1 Cables...........................................................................................................................7-33

    7.6.1 Arranging the E1/T1 Cables Between the EIUa/PEUa Board and the DDF........................................7-34

    7.6.2 Installing the E1/T1 Cables Between the EIUa/PEUa Board and the DDF in Overhead Cabling Mode

    .......................................................................................................................................................................7-357.6.3 Installing the E1/T1 Cables Between the EIUa/PEUa Board and the DDF in Underfloor Cabling Mode

    .......................................................................................................................................................................7-42

    7.7 Installing the Optical Cables.........................................................................................................................7-49

    7.7.1 Using the Accessories of the Optical Cable.........................................................................................7-49

    7.7.2 Arranging the Optical Cables...............................................................................................................7-52

    7.7.3 Installing the Optical Cables Between the OIUa/GOUa/GOUc/POUc Boards and the Other Equipment

    .......................................................................................................................................................................7-53

    7.8 Installing the EMU RS485 Communication Cables.....................................................................................7-56

    7.9 Connecting the GPS Surge Protector to the GCGa Board............................................................................7-58

    8 Installing the Local Maintenance Terminal (LMT) PC and the Alarm Box....................8-18.1 Installing the Local Maintenance Terminal (LMT) PC...................................................................................8-2

    8.2 Installing the Alarm Box.................................................................................................................................8-2

    9 Attaching the Engineering Labels to the Cables..................................................................9-1

    9.1 Attaching the Engineering Labels to the Power Cables and PGND Cables...................................................9-2

    9.2 Attaching the Engineering Labels to the Signal Cables..................................................................................9-2

    10 Checking the Hardware Installation..................................................................................10-1

    10.1 Checklist forBSC6900 Cabinet Installation...............................................................................................10-2

    10.2 Checklist for BSC6900 Cable Installation..................................................................................................10-2

    10.3 Checklist forthe Installation of the BSC6900 GPS Antenna System.........................................................10-2

    10.4 Checklist forthe Installation of the LMT Computer and Alarm Box.........................................................10-2

    10.5 Checklist forField Cleanliness of BSC6900 Installation............................................................................10-2

    11 Installation Illustrations.......................................................................................................11-1

    11.1 ExplodedView of the N68E-22 Cabinet.....................................................................................................11-2

    11.2 Componentsof the Cabinet.........................................................................................................................11-4

    11.3 Cable Connections of the Cabinet...............................................................................................................11-8

    11.3.1 Connections of Power Cables and PGND Cables in the Cabinet......................................................11-9

    11.3.2 Connections of Signal Cables for the MPR.....................................................................................11-15

    11.3.3 Connections of Signal Cables for the EPR.......................................................................................11-26

    Contents

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    11.3.4 Connections of Signal Cables for the TCR .....................................................................................11-29

    12 Hardware Installation Records............................................................................................12-1

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    Figures

    Figure 2-1Straightening the tongue.....................................................................................................................2-5

    Figure 2-2Removing the cover............................................................................................................................2-5

    Figure 2-3Removing side boards........................................................................................................................ 2-6

    Figure 2-4Unpacking a carton.............................................................................................................................2-6

    Figure 4-1Connections of the power cables and PGND cables.......................................................................... 4-3

    Figure 4-2Installing the power cables and PGND cables in overhead cabling mode.........................................4-5

    Figure 4-3Installing the OT terminal...................................................................................................................4-7

    Figure 4-4Installing power cables and PGND cables in underfloor cabling mode.............................................4-8

    Figure 4-5Installing the OT terminal.................................................................................................................4-10

    Figure 4-6Installing the PGND cables of the adjacent cabinets........................................................................4-11

    Figure 5-1Cover for the DIP switch of the subrack............................................................................................ 5-1

    Figure 6-1Installing the board.............................................................................................................................6-3

    Figure 6-2Layout of the DIP switches on the EIUa board..................................................................................6-6

    Figure 6-3Layout of the DIP switch on the PAMU board..................................................................................6-8Figure 6-4Layout of the DIP switches on the PEUa board.................................................................................6-9

    Figure 6-5DIP switch on the PFCU board........................................................................................................6-12

    Figure 6-6DIP switch on the PFCU board........................................................................................................6-12

    Figure 6-7Pins on the PFCB board....................................................................................................................6-13

    Figure 6-8Pins on the PFCB board....................................................................................................................6-14

    Figure 7-1Bending and binding signal cables.....................................................................................................7-7

    Figure 7-2Connection of the inter-TNUa cables between two subracks...........................................................7-10

    Figure 7-3Connection of the inter-TNUa cables between three subracks.........................................................7-11

    Figure 7-4Connection of the inter-TNUa cables between four subracks..........................................................7-12

    Figure 7-5Connecting the Y-shaped clock cables.............................................................................................7-15

    Figure 7-6Connecting the cables between the GCUa and the BITS clock........................................................7-17

    Figure 7-7Connection of the inter-SCUa cables between two subracks...........................................................7-22

    Figure 7-8Connection of the inter-SCUa cables between three subracks.........................................................7-23

    Figure 7-9Connection of the inter-SCUa cables between four subracks..........................................................7-24

    Figure 7-10Connection of the inter-SCUa cables in full configuration of two cabinets...................................7-26

    Figure 7-11Connections of Ethernet cables between the OMUa board and the LAN......................................7-28

    Figure 7-12Connection between the XPUa/XPUb board and the CBC (taking the XPUa board as an example)

    .............................................................................................................................................................................7-30

    Figure 7-13Connection between the FG2a/FG2c board and the other equipment (taking the FG2a board as anexample)..............................................................................................................................................................7-32

    BSC6900 GSM

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    Figure 7-14Installing non-active/standby E1/T1 cables between the EIUa/PEUa board and the DDF in overhead

    cabling mode ......................................................................................................................................................7-36

    Figure 7-15Installing active/standby E1/T1 cables between the EIUa/PEUa board and the DDF in overhead cabling

    mode....................................................................................................................................................................7-37

    Figure 7-16Opening the cover plate of the back cable trough..........................................................................7-38Figure 7-17Bundling E1/T1 cables led from the boards (non-active/standby E1/T1 cable as example)..........7-39

    Figure 7-18Routing the E1/T1 cables through the back cable trough...............................................................7-40

    Figure 7-19E1/T1 cables bundled on the side of the cabinet............................................................................7-40

    Figure 7-20E1/T1 cables bundled on the cable tray I........................................................................................7-41

    Figure 7-21E1/T1 cables bundled on the cable tray II......................................................................................7-41

    Figure 7-22Installing non-active/standby E1/T1 cables between the EIUa/PEUa board and the DDF in underfloor

    cabling mode ......................................................................................................................................................7-44

    Figure 7-23Installing active/standby E1/T1 cables between the EIUa/PEUa board and the DDF in underfloor

    cabling mode ......................................................................................................................................................7-45

    Figure 7-24Opening the cover plate of the back cable trough............................. ................................... ..........7-46

    Figure 7-25Bundling E1/T1 cables from the boards (non-active/standby E1/T1 cables as an example).........7-47

    Figure 7-26Routing the E1/T1 cables through the back cable trough...............................................................7-48

    Figure 7-27Appearance of an SC/PC adapter.................................................................................... ...............7-50

    Figure 7-28Appearance of an FC/PC adapter.................................................................................... ...............7-50

    Figure 7-29Appearance of an LC/PC adapter...................................................................................................7-51

    Figure 7-30Installation position of the fiber management tray.........................................................................7-52

    Figure 7-31Connection of the optical cables between the OIUa/GOUa/GOUc/POUc and the other equipment

    (taking the OIUa and GOUa as an example).......................................................................................................7-55

    Figure 7-32Connections of cables between the EMU and the power distribution box.....................................7-57

    Figure 7-33Connecting the GPS surge protector to the GCGa board...............................................................7-59

    Figure 7-34Installing the surge protector to its fastener....................................................................................7-60

    Figure 7-35Installing the fastener of the surge protector..................................................................................7-61

    Figure 11-1Structure of the N68E-22 cabinet...................................................................................................11-2

    Figure 11-2Components of the MPR (configured with the OMU board)/EPR/TCR........................................11-5

    Figure 11-3Components of the MPR (configured with the GBAM)................................................................11-7

    Figure 11-4Connections of power cables and PGND cables in the cabinet (configured with the high-power power

    distribution box) ...............................................................................................................................................11-10

    Figure 11-5Connections of power cables and PGND cables in the MPR (configured with IBM X3650T)...11-12

    Figure 11-6Connections of power cables and PGND cables in the MPR (configured with HUAWEI C5210 or HPCC3310)............................................................................................................................................................11-14

    Figure 11-7Connections of signal cables for an MPR that is configured with one MPS and two EPSs .......11-16

    Figure 11-8Connections of signal cables for the MPR (configured with IBM X3650T)...............................11-20

    Figure 11-9Connections of signal cables for the MPR (Configured with C5210 or HP CC3310).................11-21

    Figure 11-10Connections of signal cables for an EPR that is configured with three EPSs............................11-27

    Figure 11-11Connections of signal cables for the TCR..................................................................................11-30

    Figures

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    1Changes in the BSC6900 GSM InstallationGuide

    This chapter describes the changes in the BSC6900 GSM Installation Guide.

    04 (2011-03-07)

    This is the fourth commercial release of V900R012C01.

    Compared with issue 03 (2010-09-20), this issue does not include any new topics.

    Compared with issue 03 (2010-09-20), this issue incorporates the following changes:

    Content Description

    6.2 Installing the OMUa Boards The procedure and the figure of the installing

    the board are modified.

    Compared with issue 03 (2010-09-20), this issue does not exclude any topics.

    03 (2010-09-20)

    This is the third commercial release of V900R012C01.

    Compared with issue 02 (2010-06-21), this issue does not include any new topics.

    Compared with issue 02 (2010-06-21), this issue incorporates the following changes:

    Content Description

    7.4.1 Installing the Y-Shaped Clock Cables The length of Y-Shaped Clock Cable is

    modified.

    7.5.2 Installing the Inter-SCUa Cables

    Between Different Subracks

    The figures of the connection of inter-SCUa

    cables between different subracks when the

    TCS is in remote configuration mode are

    modified.

    BSC6900 GSM

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    Compared with issue 02 (2010-06-21), this issue does not exclude any topics.

    02 (2010-06-21)

    This is the second commercial release of V900R012C01.

    Compared with issue 01 (2010-04-10), this issue does not include any new topics.

    Compared with issue 01 (2010-04-10), this issue incorporates the following changes:

    Content Description

    5 Checking and Setting the Subrack DIP

    Switch

    The description about the caution is

    optimized.

    Compared with issue 01 (2010-04-10), this issue does not exclude any topics.

    01 (2010-04-10)

    This is the first commercial release of V900R012C01.

    Compared with issue 04 (2010-01-30) of V900R011C00, this issue does not include any new

    topics.

    Compared with issue 04 (2010-01-30) of V900R011C00, this issue does not incorporate any

    changes.

    Compared with issue 04 (2010-01-30) of V900R011C00, this issue does not exclude any topics.

    1 Changes in the BSC6900 GSM Installation Guide

    BSC6900 GSM

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    2Preparations for InstallationAbout This Chapter

    Before the BSC6900 installation, you need to arrange the installation tools, unpack the packing

    cases, and check the items.

    2.1 Installation Tools

    The tools required for installing the BSC6900 are tools for measuring, marking, drilling, and

    fastening, small tools, auxiliary tools, instruments, and special tools.

    2.2 Unpacking the Cases and Checking the Items

    This section describes how to unpack the cases containing the BSC6900 at the installation site

    and check the items in the cases to facilitate installation.

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    2.1 Installation Tools

    The tools required for installing the BSC6900 are tools for measuring, marking, drilling, and

    fastening, small tools, auxiliary tools, instruments, and special tools.

    Table 2-1lists the tools required for installation.

    Table 2-1Tools required for installation

    Common Tools Measuring tools Long measuring tape, ruler (1 m), angle square,

    industrial horizontal ruler, and plumb

    Marking tools Marking pen or ink fountain

    Drilling tools Percussion drill (16 drill bit) and vacuum cleaner

    Fastening tools M3-M6 straight screwdrivers

    M3-M6 Phillips screwdrivers

    Adjustable wrench

    Socket wrenches M6, M8, M12, M14, M17, and M19

    Double offset ring wrenches M6, M8, M12, M14,

    M17, and M19

    Long-arm wrench

    Small tools Sharp-nose pliers, diagonal pliers, pliers, hand-held

    electric drill, file, handsaw, crowbar, rubber hammer,

    and claw hammer

    Auxiliary tools Tweezers, brush, bellows, paper knife, bellows,

    electric iron, solder wires, ladder, pallet truck, panel

    lifter, heat gun, and electric outlet (with three 2-phase

    sockets and three 3-phase sockets, rated current higher

    than 15 A)

    Special tools ESD wrist strap, glove, cable peeler, clamp pincer, feeder cutter, SMB

    crimping pliers, RJ-45 crimping pliers, and wire cutter

    Meters Earth resistance tester, Ethernet cable tester, multimeter, 500 V

    megohmmeter, optical multimeter, and optical power meter

    2.2 Unpacking the Cases and Checking the Items

    This section describes how to unpack the cases containing the BSC6900 at the installation site

    and check the items in the cases to facilitate installation.

    Prerequisite

    l Site preparation for the installation is complete.

    l The cases that contain the cabinets and components are delivered to the site.

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    l The required tools are available. The tools are wrench, flat-head screwdriver, claw hammer,

    and paper knife.

    Context

    CAUTION

    Electronic devices are prone to electrostatic discharge (ESD). Wear an ESD wrist strap correctly

    and touch only the edges of the boards, especially when dealing with components such as boards.

    l When carrying or placing the equipment, you should ensure that it does not collide with

    doors, walls, shelves, or other objects.

    l When transporting or installing the equipment, components, or parts, you should avoid

    touching their uncoated metal surfaces with sweaty or dirty gloves.

    Procedure

    Step 1 Unload the cases.

    CAUTION

    When unloading the cases, you should place the cases in sequence. Ensure that the labels on the

    cases face the same direction for the ease of inspection.

    Step 2 After unloading the cases, check whether the number of cases on site matches the Packing Listand whether the place of delivery is the same as the actual installation place.

    If... Then...

    The number of cases on site is the same as that mentioned in the Packing

    List,

    Go to Step 4.

    The number of cases on site does not match that in the Packing List, Go to Step 3.

    Step 3 In case of any disagreement, the installation supervisor must stop the unpacking immediatelyand send the Cargo Problems Reportto the order management engineer in the local Huawei

    office within three days. Note that this report must be signed by the customer.

    Step 4 Check whether the packing cases are intact and the equipment is placed upright during thetransportation.

    If... Then...

    Any case is severely damaged or soaked, Go to Step 5.

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    If... Then...

    The cases are intact, Go to Step 6.

    Step 5 Stop the unpacking immediately, find the causes, and contact the order management engineerin the local Huawei office to further handle the problem.

    CAUTION

    To protect the equipment and find out the causes, perform the following actions: Move the

    unpacked equipment indoors for proper storage, take photos of the storage environment, the

    rusted or corroded equipment, packing cases, and packing materials. Keep these photos for future

    verification. Store the packing cases and materials properly.

    Step 6 Unpack the wooden cases.

    CAUTION

    l Before the unpacking, move the wooden cases into or close to the equipment room if

    sufficient space is available. This prevents damage to the cabinets during the transportation.

    l When you unpack the wooden cases, find the one labeled Packing List. Then, you can find

    articles rapidly according to the names, codes, positions, and quantities described in the

    Packing List.l The following description takes the wooden case that contains the cabinet as an example.

    The methods for unpacking other types of wooden cases are similar.

    1. Place the wooden case on the ground. Ensure that the side with the wooden frame faces the

    bottom.

    2. Use a wrench, flat-head screwdriver, or a claw hammer to straighten the tongues on the

    four sides of the cover.

    See Figure 2-1.

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    Figure 2-1Straightening the tongue

    3. Remove the cover. If the wooden case contains a carton, take out the carton, and then open

    it according to Step 7. If the wooden case contains a cabinet, go to the next step. See Figure2-2.

    Figure 2-2Removing the cover

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    4. Remove the side boards from the wooden case by using the same method. See Figure

    2-3.

    Figure 2-3Removing side boards

    5. Erect the cabinet with the BOTTOM side down.

    CAUTION

    This operation needs three to five installers. Prevent the cabinet from falling during the

    erection to avoid injury to the personnel.

    6. Remove the bottom of the case, that is, the side with the wooden frame.

    7. Remove the foamed wrap angles.

    8. Remove the vacuum plastic bag.

    Step 7 Unpack the carton. See Figure 2-4.

    Figure 2-4Unpacking a carton

    1 Carton label 2 Strap 3 Pressure-sensitive tape

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    4 Foam plate 5 Board label 6 Board

    1. Check the types and quantities of the items in the carton according to the carton label.

    2. Cut the straps by using diagonal pliers.

    3. Rip the tape along the joint seams by using the paper knife. Do not insert the knife too deep,

    or else the items may be damaged.

    4. Unpack the carton and take out the items.

    Step 8 Unpack boards.

    CAUTION

    l When unpacking the boards, take proper ESD prevention measures, for example, wear the

    ESD wrist strap to prevent electrical damage to the boards.

    l The ESD bag contains the desiccant to keep the bag dry. When taking the board from a cold

    dry place to a hot damp place, wait at least 30 minutes before unpacking. Otherwise, moisture

    condensed on the board surface may damage the board.

    1. Check for the evident damage on the board packages.

    2. Open the packages and ensure that the boards are in good condition. For any board problem,

    contact the order management engineer at the local Huawei office.

    Step 9 Check whether the unpacked boards need to be installed immediately, and then proceed withthe installation accordingly.

    If... Then...

    The unpacked boards need to be installed

    immediately,

    Place the boards on an ESD surface and let the

    static electricity to discharge to facilitate the

    installation.

    The unpacked boards need not be installed

    immediately,

    Pack the boards with the original materials and

    place them in a cool dry place away from direct

    sunlight or strong electromagnetic radiation.

    Step 10 Take out thePacking Listfrom the carton labeled Packing List. Then, check the articles one byone according to the name, type, and quantity of each article described in thePacking List.

    The checking of item covers the following aspects:

    l Appearance: Check whether there are defects in the appearance of the cabinet, whether the

    cabinet is loose, distorted, or damaged, whether the identification is legible, and whether all

    nameplates and decorating plates are available and meet the requirements.

    l Integrity: Check whether all the parts and accessories required for the installation of cabinets

    are available.

    l

    Computer terminal: Check whether the monitor, keyboard, and mouse are all available andin good condition.

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    l Boards: Check whether the type and quantity of the boards are consistent with that described

    in thePacking List, and whether the printed circuit board is broken or components are

    detached from the board.

    NOTE

    The project supervisor should take the major role in checking the equipment and components whose electric

    characteristics are likely to be affected.

    If... Then...

    ThePacking Listindicates "shortage of

    articles",

    The installation supervisor must inform the order

    management engineer at the local Huawei office.

    Then, sign thePacking Listalong with the

    customer.

    There are any short, wrong, or extra

    shipment, or any damaged items,

    Representatives of Huawei and the customer

    must sign the Unpacking Inspection MemoandPacking List. The installation supervisor must fill

    in the Cargo Problems Reportand inform the

    order management engineer at the local office in

    three days. The installation supervisor must keep

    the problematic items (including the inner and

    outer packing) intact for future investigation and

    verification.

    The shipment is intact, Place the checked articles by type. Do not discard

    the packing cases of the equipment until the

    Packing Listis signed.

    ----End

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    3Procedures for InstallationThis chapter describes how to install the BSC6900 and its accessories, power cables and PGND

    cables, OMUa boards, signal cables, Local Maintenance Terminal (LMT) PC, and alarm box.

    Prerequisite

    l The equipment is unpacked and checked.

    l The tools required for the installation are available.

    Procedure

    Step 1 Install the cabinet and its accessories. See theN68E-22 Cabinet Installation Guide.

    Step 2 Install the power cables and PGND cables. See 4 Installing the Power Cables and PGNDCables.

    Step 3 Install the OMUa boards. See 6.2 Installing the OMUa Boards.

    Step 4 Install the signal cables. See 7 Installing the Signal Cables.

    Step 5 Install the Local Maintenance Terminal (LMT) PC and the alarm box. See 8 Installing the LocalMaintenance Terminal (LMT) PC and the Alarm Box.

    Step 6 Attach the engineering labels to the cables. See 9 Attaching the Engineering Labels to theCables.

    Step 7 Check the installation. See 10 Checking the Hardware Installation.

    ----End

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    4Installing the Power Cables and PGNDCables

    About This Chapter

    This chapter describes how to install the power cables and PGND cables between the

    BSC6900 and the power distribution frame (PDF) and also how to install the PGND cables

    between the cabinets of the BSC6900.

    4.1 Power Cables and PGND Cables to Be Installed

    The power cables and PGND cables to be installed are the external -48 V power cables, external

    RTN cables, external PGND cable, and inter-cabinet PGND cables.

    4.2 Connections of the Power Cables and PGND Cables

    This section describes the connections of the power cables and PGND cables between the

    BSC6900 and the PDF. It also describes the connections of the PGND cables between the

    adjacent cabinets.

    4.3 Principles of Installing the Power Cables and PGND Cables

    This section describes the principles of installing the power cables and PGND cables. When

    installing the power cables and PGND cables, you should follow the routing and binding

    principles.

    4.4 Installing the Power Cables and PGND Cable Between the BSC6900 and the PDF

    This section describes how to install the power cables and PGND cables between theBSC6900 cabinet and the PDF in overhead and underfloor cabling modes.

    4.5 Installing the PGND Cables Between Adjacent Cabinets

    This section describes how to connect the upper, middle and lower parts of the PGND busbar

    of one cabinet to those of its adjacent cabinet(s) through the PGND cables.

    4.6 Checking the Power-On Performance

    This section describes how to check the power supply to the cabinet. In addition, this describes

    how to check that the power supply to the subrack, the fan box and boards in the subrack are

    normal.

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    4.1 Power Cables and PGND Cables to Be Installed

    The power cables and PGND cables to be installed are the external -48 V power cables, external

    RTN cables, external PGND cable, and inter-cabinet PGND cables.

    Table 4-1lists the external power cables and PGND cables that must be installed for each

    cabinet.

    Table 4-1Power cables and PGND cables to be installed for each cabinet

    Name Color Cross-Sectional Area

    (mm2)

    BendingRadius(mm)

    ConnectorType/Installation Position

    ConnectorType/Installation Position

    Quantity

    External-48 V

    power

    cable

    Blue 25/35 30 OTterminal/-48

    V input of

    the cabinet

    OTterminal/48

    V output of

    the PDF

    4

    External

    RTN

    power

    cable

    Black 25/35 30 OT terminal/

    RTN input

    of the

    cabinet

    OT terminal/

    RTN output

    of the PDF

    4

    External

    PGND

    cable

    Green

    and

    yellow

    25/35 30 OT terminal/

    PGND input

    of the

    cabinet

    OT terminal/

    PGND

    output of the

    PDF

    1

    Inter-

    cabinet

    PGND

    cable

    Green

    and

    yellow

    6 15 OT terminal/

    PGND

    busbar of the

    cabinet

    OT terminal/

    PGND

    busbar of the

    cabinet

    3

    NOTE

    The required length of power cables and of PGND cables is specified in the site survey report. Appropriate

    length of power cables and of PGND cables must be obtained and cable terminals must be crimped on site.l By default, the colors of the power cables and PGND cables are those specified in Table 4-1. These

    colors must be in accordance with the customer requirements.

    l For details about the description of the power cables, see Power Cables. For details about the

    description of the PGND cables, see PGND Cables.

    4.2 Connections of the Power Cables and PGND Cables

    This section describes the connections of the power cables and PGND cables between the

    BSC6900 and the PDF. It also describes the connections of the PGND cables between the

    adjacent cabinets.

    Figure 4-1shows the connections of the power cables and PGND cables.

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    Figure 4-1Connections of the power cables and PGND cables

    NOTE

    The PGND cables of the cabinet should be connected to the nearest ground bar. When the PDF is far away

    from the cabinet, for example, the PDF is not in the same equipment room as the cabinet, you should

    connect the PGND cable for the cabinet to the nearest ground bar co-grounded with the PDF rather than

    connect the PGND cable directly to the PDF. In this case, the methods of installing and routing the PGND

    cables are the same as those of connecting the PGND cables directly to the PDF. In practice, the PGND

    cables of the cabinet must be connected on the basis of the requirements of the customer.

    4.3 Principles of Installing the Power Cables and PGNDCables

    This section describes the principles of installing the power cables and PGND cables. When

    installing the power cables and PGND cables, you should follow the routing and binding

    principles.

    Cable Routing Requirements

    l The layout of power cables and PGND cables should facilitate future capacity expansion.

    l The power cables and PGND cables must be separated from the other cables. When the

    power cables and the PGND cables are laid parallel to signal cables, the spacing between

    them must be at least 30 mm.

    l Ensure that the bending radius is five times longer than the diameter of the cable.

    l In underfloor cabling mode, a surplus length of power cable must be reserved outside the

    cable inlet of the power distribution box on the top of the cabinet. This facilitates the

    installation of the terminal. In addition, the cables must be laid flat on the top of the cabinet.

    l When connecting power cables to the terminals of the power distribution box, lay the cables

    straight and smoothly.

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    Cable Binding Requirements

    l The power cables and PGND cables must be separated from the signal cables.

    l The spacing between the cable ties should be 200 mm.

    lIf the underfloor cabling mode is used, the power cables and PGND cables should be routedalong the middle column on the right of the cabinet front.

    l The selection of cable ties (150 mm/300 mm) depends on the diameter and quantity of

    cables.

    l The cable ties are bound in the same direction. The extra length of the cable ties are cut

    and the cut surfaces are smooth without sharp edges.

    4.4 Installing the Power Cables and PGND Cable Betweenthe BSC6900 and the PDF

    This section describes how to install the power cables and PGND cables between theBSC6900 cabinet and the PDF in overhead and underfloor cabling modes.

    4.4.1 Installing the Power Cables and PGND Cables Between the BSC6900 and the PDF

    (Overhead Cabling)

    This section describes how to lay and install the power cables and PGND cables between the

    BSC6900 cabinet and the PDF in overhead cabling mode.

    4.4.2 Installing the Power Cables and PGND Cables Between the BSC6900 and the PDF

    (Underfloor Cabling)

    This section describes how to lay and install the power cables and PGND cables between the

    BSC6900 cabinet and the PDF in underfloor cabling mode.

    4.4.1 Installing the Power Cables and PGND Cables Between theBSC6900 and the PDF (Overhead Cabling)

    This section describes how to lay and install the power cables and PGND cables between the

    BSC6900 cabinet and the PDF in overhead cabling mode.

    Prerequisite

    l The cabinet to be connected with power cables and PGND cables is installed.

    l The power distribution switches of the relevant PDF output terminals are set to OFF.

    l All the switches on the power distribution box of the cabinets are set to OFF.

    l The components required for the installation are available. The components are the power

    cables and PGND cables.

    l The materials required for the installation are available. The materials are cable ties, wax

    strings, and PVC insulation tape.

    l The tools required for the installation are available. The tools are diagonal pliers, handsaw,

    wire cutter, wrench, Phillips screwdriver, and flat-head screwdriver.

    Context

    When the overhead cabling mode is used, the power cables are led out of the PDF through theupper cable hole, and then onto the cable tray, and finally routed to the top of each cabinet.

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    Figure 4-2shows how to install the power cables and PGND cables between the cabinet and

    the PDF in overhead cabling mode.

    Figure 4-2Installing the power cables and PGND cables in overhead cabling mode

    Procedure

    Step 1 Determine the length of the required power cables and PGND cables by referring to the relatedengineering design or by measuring the actual cabling route.

    Step 2 Uncoil the power cable roll and the PGND cable roll on site. Obtain appropriate length of cablesby using the tape measure or other measuring tools. Then, cut the cables by using the handsaw

    (teeth space: 0.8 mm) or the wire cutter (KT35). When cutting the cables, you should leave a

    little slack.

    CAUTION

    When laying out the cable, you should replace it with a new one if the reserved length is

    insufficient. Do not make connectors or solder joints.

    Step 3 Attach temporary labels to both ends of the cables. The contents on the temporary labels are notrestricted because they are only for distinguishing the cables after the layout.

    Step 4 Route the power cables and the PGND cables between the cabinet and the PDF. The cables arerouted in such a way that the power cables are led out of the PDF through the upper cable hole,

    and then onto the cable tray, and finally routed to the top of each cabinet.

    NOTE

    l If the height difference between the cable tray and the top of the cabinet exceeds 800 mm, a downward

    cable ladder must be used.

    l Ensure that the bending radius is five times longer than the diameter of the cable.

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    Step 5 Connect the power cables and the PGND cables to the cabinet.

    1. Determine the actual length of the cables that you need according to the installation position

    of each cable. Then, cut the cable with extra length for some slack..

    2. Obtain the cable terminals delivered with the equipment. Then, crimp the OT terminal of

    the power cable and the OT terminal of the PGND cable on one side of the cabinet byreferring to Assembling the OT Terminal and the Power Cable.

    3. Remove the left and right plastic cover plates at the rear of the cabinet top. Cut each cover

    plate appropriately so that the hole on the cover plate matches the power cable inlet of the

    power distribution box.

    4. Place the two cover plates in their original positions.

    5. Through the hole on the cover plate on top of the cabinet, connect the OT terminals of the

    -48 V power cable to the wiring terminals labeled "3(-)" and "1(-)" in both part A and part

    B of the power distribution box, and connect the OT terminals of the RTN power cable to

    the wiring terminals labeled "3(+)" and "1(+)" in both part A and part B of the power

    distribution box.

    6. Connect the OT terminals of the -48 V power cable and of the RTN power cable to the

    wiring post in the power distribution box.

    7. Fix the OT terminal of the PGND cable to the ground bolt at the rear of the cabinet top.

    Step 6 Lead the power cables and the PGND cables to the output terminals of the PDF.

    1. Determine the actual length of the cables that you need according to the installation position

    of each cable. Then, cut the cable with extra length for some slack.

    2. Obtain the OT terminals of the cables delivered with the equipment. Then, crimp the OT

    terminals of the power cable and of the PGND cable by referring to Assembling the OT

    Terminal and the Power Cable.

    3. Connect the -48 V power cables, the RTN power cables, and the PGND cables to thematching wiring posts inside the PDF.

    NOTE

    When connecting the OT terminals to the RTN, PGND copper bars, and 48 V wiring posts, you

    should add the flat washers and spring washers and arrange the cables neatly.

    Figure 4-3shows how to install the OT terminal.

    4 Installing the Power Cables and PGND Cables

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    Figure 4-3Installing the OT terminal

    1 Power cable 2 Heat-shrinkable tube 3 Nut

    4 Spring washer 5 Flat washer 6 Terminal bolt

    4. Record the installationresults in the templates provided in 12 Hardware Installation

    Records.

    ----End

    4.4.2 Installing the Power Cables and PGND Cables Between theBSC6900 and the PDF (Underfloor Cabling)

    This section describes how to lay and install the power cables and PGND cables between the

    BSC6900 cabinet and the PDF in underfloor cabling mode.

    Prerequisite

    l The cabinet to be connected with power cables and PGND cables is installed.

    l The power distribution switches of the relevant PDF output terminals are set to OFF.

    l All the switches on the power distribution box of the cabinets are set to OFF.

    l The components required for the installation are available. The components are the power

    cables and PGND cables.

    l The materials required for the installation are available. The required materials are the cable

    ties, wax strings, PVC insulation tape, and lifting rope.

    l

    The tools required for the installation are available. The tools are diagonal pliers, handsaw,wire cutter, wrench, Phillips screwdriver, and flat-head screwdriver.

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    Context

    When the underfloor cabling mode is used, the power cables are led out of the PDF through the

    lower cable hole, and then to the bottom of the cabinet beneath the ESD floor, and finally routed

    to the top of the cabinet along the middle column in the cabinet. Figure 4-4shows how to install

    the power cables and PGND cables between the cabinet and the PDF in underfloor cabling mode.

    Figure 4-4Installing power cables and PGND cables in underfloor cabling mode

    Procedure

    Step 1 Determine the length of the required power cables and PGND cables by referring to the relatedengineering design or by measuring the actual cabling route.

    Step 2 Uncoil the power cable roll and the PGND cable roll on site. Obtain appropriate length of cablesby using the tape measure or other measuring instrument. Then, cut the cables by using the

    handsaw (teeth space: 0.8 mm) or the wire cutter (KT35). When cutting the cables, you should

    leave a little slack.

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    CAUTION

    When laying out the cable, you should replace it with a new one if the reserved length is

    insufficient. Do not make connectors or solder joints.

    Step 3 Attach temporary labels to both ends of the cables. The contents on the temporary labels are notrestricted because they are only for distinguishing the cables after the layout.

    Step 4 Lay the power cables and PGND cable according to the requirements for routing cables andengineering requirements.

    1. Lead one PGND cable and four pairs of power cables out of the PDF through the cable

    outlet at the bottom of the PDF. Then, route the cables under the ESD floor to the N68E-22

    cabinet.

    2. Divide the four pairs of power cables into two groups, with two pairs in each group. Use

    the cables ties to bind one group and the PGND cable, and then use the cable ties to bindthe other group separately. Route the two bundles of cables to the middle columns on the

    left and right sides of the cabinet respectively.

    3. Route one end of the lifting rope to the top of the middle column. Route the other end of

    the lifting rope to the bottom of the cabinet through the middle column and bind the rope

    to the power cables and PGND cable in the lower part of the middle column.

    4. Pull the upper end of the lifting rope appropriately so that the power cables and PGND

    cable are routed to the top of the cabinet through the middle column.

    5. Remove the lifting rope and remove the cable ties from the power cables and PGND cable.

    Step 5 Connect the power cables and the PGND cables to the cabinet.

    1. Determine the actual length of the cables that you need according to the installation position

    of each cable. Then, cut the cable with extra length for some slack.

    2. Obtain the cable terminals delivered with the equipment. Then, crimp the OT terminal of

    the power cable and the OT terminal of the PGND cable on one side of the cabinet by

    referring to Assembling the OT Terminal and the Power Cable.

    3. Remove the left and right plastic cover plates at the rear of the cabinet top. Cut each cover

    plate appropriately so that the hole on the cover plate matches the power cable inlet of the

    power distribution box.

    4. Place the two cover plates in their original positions.

    5. Through the hole on the cover plate on top of the N68E-22 cabinet, connect the OT terminalsof the -48 V power cable to the wiring terminals labeled "3(-)" and "1(-)" in both part A

    and part B of the power distribution box, and connect the OT terminals of the RTN power

    cable to the wiring terminals labeled "3(+)" and "1(+)" in both part A and part B of the

    power distribution box.

    6. Connect the OT terminals of the -48 V power cable and of the RTN power cable to the

    wiring post in the power distribution box.

    7. Fix the OT terminal of the PGND cable to the ground bolt at the rear of the cabinet top.

    Step 6 Lead the power cables and the PGND cables to the output terminals of the PDF.

    1. Determine the actual length of the cables that you need according to the installation position

    of each cable. Then, cut the cable with extra length for some slack.

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    2. Obtain the OT terminals of the cables delivered with the equipment. Then, crimp the OT

    terminals of the power cable and of the PGND cable by referring to Assembling the OT

    Terminal and the Power Cable.

    3. Connect the -48 V power cables, the RTN power cables, and the PGND cables to the

    matching wiring posts inside the PDF.NOTE

    When connecting the OT terminals to the RTN, PGND copper bars, and 48 V wiring posts, you

    should add the flat washers and spring washers and should arrange the cables neatly.

    Figure 4-5shows how to install the OT terminal.

    Figure 4-5Installing the OT terminal

    1 Power cable 2 Heat-shrinkable tube 3 Nut

    4 Spring washer 5 Flat washer 6 Terminal bolt

    4. Record the installation results in the templates provided in 12 Hardware InstallationRecords.

    ----End

    4.5 Installing the PGND Cables Between Adjacent Cabinets

    This section describes how to connect the upper, middle and lower parts of the PGND busbar

    of one cabinet to those of its adjacent cabinet(s) through the PGND cables.

    Prerequisite

    All the power distribution switches of the relevant PDF output terminals are set to OFF.

    4 Installing the Power Cables and PGND Cables

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    Procedure

    Step 1 As shown in Figure 4-6, use inter-cabinet PGND cables to connect the upper, middle, and lowerPGND busbars on the mounting bar of the adjacent cabinets by referring to 4.2 Connections of

    the Power Cables and PGND Cables.

    Figure 4-6Installing the PGND cables of the adjacent cabinets

    ----End

    Follow-up Procedure

    Record the installation result in the templates provided in 12 Hardware Installation

    Records.

    4.6 Checking the Power-On Performance

    This section describes how to check the power supply to the cabinet. In addition, this describes

    how to check that the power supply to the subrack, the fan box and boards in the subrack are

    normal.

    Prerequisite

    l The power cables and PGND cables are installed between the cabinet and the PDF.

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    l The subracks, fan boxes, and boards are installed in the cabinet.

    l The required tool (multimeter) is available.

    Context

    The cabinet uses the DC power supply. Technical Specifications of the Power Distribution Box

    lists the specifications for the input power of the cabinet.

    CAUTION

    Wear the ESD wrist strap correctly. Ensure that the ESD wrist strap is properly connected to the

    ESD connector on the cabinet.

    Before powering on a subrack, do not insert a board into or remove a board from the subrack to

    avoid static damage to boards.

    Procedure

    Step 1 Set the corresponding output switches on the PDF to OFF and set all the output switches on thepower distribution box of the cabinet to OFF.

    Step 2 Set the multimeter to the resistance scale, and then measure the resistance at the power outputterminal for the PDF and at the input and output terminals for the power distribution box of the

    cabinet. Ensure that there is no short-circuit either between the -48 V working power and the

    RTN working ground or between the -48 V working power and the PGND protection ground.

    Step 3 Set the corresponding output switches on the PDF to ON and all the output switches on the powerdistribution box of the cabinet to OFF.

    Then, the power distribution box enters the self-check state. (The RUN and ALM LEDs on the

    power distribution box are ON at the same time and the buzzer sounds.) When the self-check is

    complete, the power distribution box requests for registration at the SCUa board (the RUN LED

    on the power distribution box blinks at 2 Hz) until the registration is successful (the RUN LED

    blinks at 0.5 Hz). For the description about the status of LEDs on the power distribution box,

    see LEDs on the PAMU Board.

    Step 4 Set the multimeter to the voltage scale. Ensure that the PDF output voltage and input voltage ofthe power distribution box ranges from -40 V to -57 V.

    Step 5 Set the corresponding two switches on the power distribution box to ON on the basis of subrack.

    Step 6 Set the multimeter to the voltage scale. Use the multimeter to check whether the output powerof each power distribution box ranges from -40 V to -57 V. Check whether the fan box in the

    subrack can be normally started and whether the power supply to the boards in the subrack is

    normal.

    l Normally, when the subrack is powered on, the STATUS LED is green on the panel of the

    fan box blinks. In case of exceptions, immediately turn off the switches of the power

    distribution box and PDF. Check whether the output voltage of the power distribution box

    is normal and whether the power cables are installed properly. For the description about the

    status of LEDs on the fan box, see Fan Box.

    l

    Normally, when the subrack is powered on, the RUN LED on the panel of the board is ONor blinks. If all the LEDs on a board are OFF, the board or the corresponding slot may be

    4 Installing the Power Cables and PGND Cables

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    faulty. Contact Huawei technical support engineers for further handling. For the description

    about the status of LEDs on the board, see LEDs on the Boards.

    l If the LEDs on all the boards in a subrack are OFF, immediately turn off the switches of the

    power distribution box and PDF. Check whether the output voltage of the power distribution

    box is normal and whether the power cables are installed properly.

    Step 7 Repeat Step 5to Step 6to check the power supply to all the subracks in one cabinet.

    Step 8 Repeat Step 1to Step 7to check the power supply to each cabinet.

    ----End

    Follow-up Procedure

    Record the results of power-on and checking to the corresponding table provided in 12

    Hardware Installation Records. Set the corresponding output switches on the PDF to OFF and

    all the output switches on the power distribution box of the cabinet to OFF.

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    5Checking and Setting the Subrack DIPSwitch

    This chapter describes how to check and set the DIP switch of a subrack. In general, the subrack

    is installed in the cabinet before delivery.

    Prerequisite

    The subrack is installed in the cabinet.

    Context

    CAUTION

    Wear an ESD wrist strap and connect it to the ESD connector on the cabinet before you perform

    the operation. For details, see Wearing an ESD Wrist Strap.

    The DIP switch is used to configure the number of the subrack. Figure 5-1shows the cover for

    the DIP switch of the subrack.

    Figure 5-1Cover for the DIP switch of the subrack

    The ON state of a bit indicates 0, and the OFF state of a bit indicates 1. The most significant bit

    (MSB) of the DIP switch corresponds to the MSB of a byte. Table 5-1provides the definitionsof the bits.

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    Table 5-1Meaning of the DIP Bits

    DIP Bit Meaning

    1 (the least significant bit) Subrack number setting bit

    2 Subrack number setting bit

    3 Subrack number setting bit

    4 Subrack number setting bit

    5 Subrack number setting bit

    6 Parity check bit

    7 Reserved, generally set to ON.

    8 (the most significant bit) Reserved

    As the DIP switch uses odd parity check, the number of 1s in the eight DIP bits must be an odd

    number. The setting should adhere to the following principles:

    1. Set DIP bits 1 to 5 as required.

    2. Set DIP bit 7 to 0.

    3. Note that the setting of bit 8 remains unchanged.

    4. Count the number of 1s in the seven bits of the DIP switch.

    l If the number of 1s is even, set DIP bit 6 to 1.

    l If the number of 1s is odd, set DIP bit 6 to 0.

    Assume that the subracks are numbered from 0 to 2 and that bit 8 is set to OFF. For the setting

    of the DIP switch in this case, see Table 5-2.

    Table 5-2Setting of the DIP switch

    SubrackNo.

    Bit Setting of the DIPSwitch

    1 2 3 4 5 6 7 8

    0 0 0 0 0 0 ON ON OFF

    ON ON ON ON ON

    1 1 0 0 0 0 OFF ON OFF

    OFF ON ON ON ON

    2 0 1 0 0 0 OFF ON OFF

    ON OFF ON ON ON

    5 Checking and Setting the Subrack DIP Switch

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    CAUTION

    When the cabinet is powered on, the DIP switch of the subrack cannot be set or adjusted.

    Procedure

    Step 1 Loosen the screws on the cover of the DIP switch, as shown in Figure 5-1, by turning themcounterclockwise for two or three circles.

    Step 2 Turn the cover around the lower right screw, open the cover, and then set the DIP switch.

    Step 3 Attach a formal label or a temporary label to the subrack. The contents of the temporary labelcan be consistent with the contents of a formal label or can be determined according to your

    requirements. The purpose of attaching such a label is to facilitate the obtaining of the subrack

    number during software commissioning.

    ----End

    Follow-up Procedure

    Record the checking and setting results of the DIP switch of the subrack in the templates provided

    in 12 Hardware Installation Records.

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    6Installing Boards and Setting Board DIPSwitches

    About This Chapter

    The boards except the OMUa board are installed in the subrack before delivery. If the EIUa/

    PEUa board is installed in the cabinet, you need to check and set the DIP switches of the EIUa/

    PEUa board. The OMUa should be installed on site.

    6.1 Safety Precautions for Board Installation

    This section describes the precautions you must take when you install, remove, or replace the

    boards, or perform any other operation that requires bodily contact with the boards.

    6.2 Installingthe OMUa Boards

    This section describes how to install the OMUa board in the MPS.

    6.3 Checkingand Setting the DIP Switch on the Board

    The boards are installed in the subrack before delivery. If the EIUa/PEUa board is configured

    in the cabinet, you need to check and set the DIP switches of the EIUa/PEUa board.

    6.4 DIP Switches on the BSC6900 Boards

    This section describes the DIP switches on the BSC6900 EIUa/PEUa boards and the PAMU/

    PFCB/PFCU boards.

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    6.1 Safety Precautions for Board Installation

    This section describes the precautions you must take when you install, remove, or replace the

    boards, or perform any other operation that requires bodily contact with the boards.

    Precautions Before Operation

    l Store some materials for board installation (such as ESD boxes and bags) in the equipment

    room for future use.

    l Keep the boards and other electrostatic-sensitive parts in ESD bags. Do not pack or hold

    the boards or parts by using plastic foam, common plastic bags, or paper bags.

    l Ensure that the cabinet is well grounded before inserting the board into the subrack.

    Otherwise, the board may be severely damaged.

    l Ensure that the wrist strap is functioning. The value of the resistance measured by the

    multimeter must range from 0.75 megohm to 10 megohms.

    Precautions During Operation

    l Wear an ESD wrist strap or gloves and ensure that the ESD wrist strap is well grounded.

    l Place the board on an ESD pad when replacing board hardware or chips. Use antistatic

    tweezers or extraction tools to replace chips. Do not touch board chips or pins with your

    bare hands.

    l Discharge the static electricity of the cables and protective sleeves before connecting them

    to the ports.

    l Do not touch the PCB or any other part except jumpers and DIP switches during board

    replacement.

    l Place the removed boards and components on an ESD pad or other ESD materials. Do not

    pack or hold the boards or parts by using plastic foam, common plastic bags, or paper bags.

    6.2 Installing the OMUa Boards

    This section describes how to install the OMUa board in the MPS.

    Prerequisite

    l

    The tools required for the installation are available. The tools include ESD wrist strap orgloves and Phillips screwdriver.

    l The boards to be installed are available.

    Context

    For the position of the OMUa board in the subrack, see Configuration of the MPS.

    Procedure

    Step 1 Remove the board from the ESD box, and then check the pins and sockets of the board.

    In case of any bent, missing or broken pins, or any deformed sockets, contact Huawei engineersto replace the board.

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    Step 2 As shown in part a of Figure 6-1, press and hold the two locking buttons and turn the ejectorlevers outwards until the ejector levers cannot be turned further. Check that the ejector levers

    are located in the positions shown in part 2 of Figure 6-1.

    Step 3 Hold the panel of the board with one hand and support the board with the other. Then, slide the

    board into the subrack along the guide rail until the ejector levers are half closed, as shown inpart 3 of Figure 6-1.

    CAUTION

    When inserting the board into the subrack, you must push the board slowly and steadily to avoid

    damaging the pins on the backplane and the metal piece on the board.

    Figure 6-1Installing the board

    Step 4 As shown in part 4 of Figure 6-1, turn the two ejector levers inwards. Ensure that the board isin close contact with the backplane and that the front panel is inserted into the subrack.

    Step 5 Press and fasten the screws on the front panel to secure the board, as shown in part b of Figure6-1.

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    NOTE

    The screws on the front panel have springs. Therefore, the screws can touch the corresponding holes of the

    subrack only when you press the screws.

    ----End

    Follow-up Procedure

    Record the installation result in the templates provided in 12 Hardware Installation

    Records.

    6.3 Checking and Setting the DIP Switch on the Board

    The boards are installed in the subrack before delivery. If the EIUa/PEUa board is configured

    in the cabinet, you need to check and set the DIP switches of the EIUa/PEUa board.

    Prerequisite

    l The tools required for setting DIP switches are available. The required tools are ESD wrist

    strap, ESD gloves, ESD pad, and ESD tweezers.

    l The DIP switches on the board are found.

    l The actual transmission mode on site is determined.

    Context

    Before delivery, the DIP switches on the EIUa/PEUa board are set by default. The settings ofthe DIP switches on the EIUa/PEUa should be checked according to the transmission mode used

    on site. If the settings do not match the actual transmission mode, you need to adjust the settings

    of the DIP switches.

    CAUTION

    Wear an ESD wrist strap and connect it to the ESD connector on the cabinet before you perform

    the operation. For details, see Wearing an ESD Wrist Strap.

    Procedure

    Step 1 Determine the position of the EIUa/PEUa board in the subrack, and then remove the EIUa/PEUa board from the subrack. For details, see Removing the Board.

    Step 2 Determine a proper setting mode of DIP switches based on the board type and actual transmissionmode on site.

    Step 3 Check whether the settings of DIP switches on the board match the actual transmission mode.

    NOTE

    You can check the settings of DIP switches through the software or by removing the board on site.

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    If... Then...

    The settings of DIP switches on the board

    match the actual transmission mode,

    Modifying the settings of the DIP switches is

    not required. Go to Step 6.

    The settings of DIP switches on the board do

    not match the actual transmission mode,

    Modifying the setting of the DIP switches is

    required. Go to Step 4.

    Step 4 Wear the ESD gloves and place the board on the ESD pad. Then, use the tweezers to set thetarget DIP bits to the correct positions with moderate force. For details about the settings of the

    DIP switcheson the EIUa board, see DIP Switches on the EIUa Board. For details about the

    settings of the DIP switches on the PEUa board, see DIP Switches on the PEUa Board.

    Step 5 Set all the DIP switches on the board by repeating Step 4.

    Step 6Place the EIUa/PEUa board in its original position. For details, see Installing the Board.

    ----End

    Follow-up Procedure

    Record the checking and setting results of the DI