Bsc6900 Umts Installation Guide(v900r017c10_01)(PDF)-En

8/18/2019 Bsc6900 Umts Installation Guide(v900r017c10_01)(PDF)-En

1/115

BSC6900 UMTS

V900R017C10

Installation Guide

Issue 01

Date 2015-03-25

HUAWEI TECHNOLOGIES CO., LTD.


2/115

Copyright © Huawei Technologies Co., Ltd. 2015. 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 a 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]

Issue 01 (2015-03-25) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

i

http://www.huawei.com/


3/115

About This Document

Overview

This document describes how to install the BSC6900. The components to be installed include

external power cables, PGND cables, boards, signal cables, cabinet fittings, the computer serving

as the local maintenance terminal (LMT), and the alarm box. This document also describes how

to check the installed hardware, constructing connectors for power cables and signal cables, and

making and attaching engineering labels. Finally, this document provides requirements for the

operational environment of the equipment.

Product Version

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

Product Name Product Version Solution Version

BSC6900 V900R017C10 RAN17.1

Intended Audience

This document is intended for installation personnel.

Organization

1 Change Description

This section provides information about the changes in different document versions. There are

two types of changes, including function changes and editorial changes. Function changes refer

to changes in functions of a specific product version. Editorial changes refer to changes in

wording or addition of information that was not described in the earlier version.

2 Tools Required for Installation

BSC6900 UMTS

Installation Guide About This Document



ii


4/115

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

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

3 Installation Process

The BSC6900 installation process includes the installation of the cabinet and its fittings, power cables and PGND cables, OMUc boards , signal cables, LMT computers, and alarm boxes.

4 Installing Power Cables and PGND Cables

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

power distribution frame (PDF) ,and PGND cables between cabinets. For items and

specifications for checking the installation of the power cables and PGND cables, see 11.1

Checklist for BSC6900 Cable Installation.

5 Checking and Setting DIP Switches on Subracks

This section describes how to check and set the DIP switch on a subrack. In general, subracks

are installed in the cabinet before delivery.

6 Checking the Power-On Performance of Cabinet

This section describes how to check the power supply to cabinets, fan assembly, and boards.

7 Installing and Setting Boards

Most boards except the OMUa/OMUc/SAUa/SAUc boards are installed in subracks before the

delivery. If AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU boards are installed in the cabinet,

check and set the DIP switches of the boards. Install the OMUa/OMUc/SAUa/SAUc boards

onsite.

8 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. For items and specifications for checking the installation of signal cables, see 11.1


9 Installing the Alarm Box and the Computer Serving as the LMT

This section describes how to install an alarm box and a computer serving as the LMT. If you

are installing the computer and the alarm box in the equipment room, you can install them along

with the BSC6900 equipment. For items and specifications for checking the installation of the

LMT computer and the alarm box, see 11.3 Checklist for the Installation of the LMT

Computer and Alarm Box.

10 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

11 Checklist for the Hardware Installation

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

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

installation environment.

12 Installation Records

The table is used to record the BSC6900 hardware installation information.

BSC6900 UMTS




iii


5/115

Conventions

Symbol Conventions

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

Symbol Description

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.


avoided, may result in minor or moderate injury.


avoided, could result in equipment damage, data loss,

performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal

injury.

Calls attention to important information, best practices and

tips.

NOTE is used to address information not related to personal

injury, equipment damage, and environment deterioration.

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.

BSC6900 UMTS




iv


6/115


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.

{ 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.


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

are in boldface. For example, click OK .

> Multi-level menus are in boldface and 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 Enter and press Tab.

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

+A means the three keys should be pressed concurrently.

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

the two keys should be pressed in turn.

Mouse Operations

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

BSC6900 UMTS




v


7/115

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.

BSC6900 UMTS




vi


8/115

Contents

About This Document.....................................................................................................................ii

1 Change Description.......................................................................................................................1

2 Tools Required for Installation..................................................................................................2

3 Installation Process.......................................................................................................................4

4 Installing Power Cables and PGND Cables.............................................................................6

4.1 Power Ca bles and PGND Cables to Be Installed...........................................................................................................7

4.2 Connections of Power Cables and PGND Cables..........................................................................................................8

4.3 Principles for Installing Power Cables and PGND Cables.............................................................................................8

4.4 Installing Power Cables and PGND Cables Between a BSC6900 Cabinet and the PDF...............................................9

4.4.1 Installing Power Cables and PGND cable Between the BSC6900 and the PDF in Overhead Cabling Mode............9

4.4.2 Installing Power Cables and PGND Cable Between the BSC6900 and the PDF in Underfloor Cabling Mode.......12

4.5 Installing the PGND Cables Between Adjacent Cabinets............................................................................................17

5 Checking and Setting DIP Switches on Subracks................................................................19

6 Checking the Power-On Performance of Cabinet.................................................................22

7 Installing and Setting Boards....................................................................................................24

7.1 Safety Precautions for Board Installation.....................................................................................................................25

7.2 Installing the OMUa/OMUc/SAUa/SAUc Boards.......................................................................................................25

7.3 Checking and Setting the DIP Switch on the Board.....................................................................................................27

7.4 DIP Switches on the BSC6900 Boards.........................................................................................................................29

8 Installing the Signal Cables......................................................................................................30

8.1 Signal Ca bles to Be Installed........................................................................................................................................32

8.2 Principles of Installing Signal Cables...........................................................................................................................34

8.3 Installing the Clock Signal Cables................................................................................................................................36

8.3.1 Installing the Y-Shaped Clock Cables.......................................................................................................................36

8.3.2 Installing Line Clock Signal Cables..........................................................................................................................39

8.3.3 Installing the BITS Clock Signal Cables...................................................................................................................41

8.4 Installing the Ethernet Cables.......................................................................................................................................44

8.4.1 Arranging the Ethernet Cables..................................................................................................................................44

8.4.2 Installing the Inter-SCUa Cables Between Different Subracks.................................................................................45

BSC6900 UMTS

Installation Guide Contents



vii


9/115

8.4.3 Installing Ethernet Cables Between the OMUa and the LAN...................................................................................48

8.4.4 Installing the Ethernet Cables Between the OMUc Board and the LAN..................................................................51

8.4.5 Installing the Ethernet Cables Between the SAUa Board and the LAN....................................................................53

8.4.6 Installing the Ethernet Cables Between the SAUc Board and the LAN....................................................................54

8.4.7 Installing the Ethernet Cables Between the FG2a/FG2c Board and the Other Equipment.......................................56

8.5 Installing the E1/T1 Cables..........................................................................................................................................58

8.5.1 Arranging the E1/T1 Cables Between the AEUa/PEUa/PEUc Board and the DDF.................................................59

8.5.2 Installing the E1/T1 Cables Between the AEUa/PEUa/PEUc Board and the DDF in Overhead Cabling Mode......60

8.5.3 Installing the E1/T1 Cables Between the AEUa/PEUa/PEUc Board and the DDF in Underfloor Cabling Mode

............................................................................................................................................................................................68

8.6 Installing the Optical Cables.........................................................................................................................................75

8.6.1 Using the Accessories of the Optical Cable..............................................................................................................75

8.6.2 Arranging the Optical Cables....................................................................................................................................78

8.6.3 Installing the Optical Splitter/Combiner....................................................................................................................79

8.6.4 Installing an Optical Cable Between the SCU Boards in Different Subracks with a Long Distance........................82

8.6.5 Installing the Optical Cables Between the AOUa/AOUc/GOUa/GOUc/GOUe/POUa/POUc/UOIa/UOIc Boards and

the Other Equipment...........................................................................................................................................................87

8.7 Installing the EMU RS485 Communication Cables.....................................................................................................90

8.8 Connecting the GPS Surge Protector to the GCGa/GCGb Board................................................................................92

9 Installing the Alarm Box and the Computer Serving as the LMT.....................................97

9.1 Installing the Computer Serving as the LMT...............................................................................................................98

9.2 Installing the Alarm Box..............................................................................................................................................98

10 Attaching the Engineering Labels to the Cables...............................................................100

10.1 Attaching the Engineering Labels to the Power Cables and PGND Cables.............................................................101

10.2 Attaching the Engineering Labels to the Signal Cables...........................................................................................101

11 Checklist for the Hardware Installation.............................................................................104

11.1 Checklist for BSC6900 Cable Installation................................................................................................................105

11.2 Checklist for the Installation of the BSC6900 GPS Antenna System......................................................................105

11.3 Checklist for the Installation of the LMT Computer and Alarm Box......................................................................105

11.4 Checklist for Field Cleanliness of BSC6900 Installation.........................................................................................105

12 Installation Records................................................................................................................106

BSC6900 UMTS

Installation Guide Contents



viii


10/115

1 Change DescriptionThis section provides information about the changes in different document versions. There are

two types of changes, including function changes and editorial changes. Function changes refer

to changes in functions of a specific product version. Editorial changes refer to changes in

wording or addition of information that was not described in the earlier version.

01 (2015-03-25)

This issue does not include any changes.

Draft A (2015-01-15)

Compared with Issue 01 (2014-04-29) of V900R016C00, this issue does not include any

changes.

BSC6900 UMTS

Installation Guide 1 Change Description



1


11/115

2 Tools Required for InstallationThe tools required for installing the BSC are tools for measuring, marking, drilling, and

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

NOTICE

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.

Table 2-1 lists the tools required for installation.

Table 2-1 Tools required for installation

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

industrial horizontal ruler, and plumb

Marking tools Marking pen or ink fountain

Drilling tools Percussion drill (Ф16 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 mallet,

and claw hammer

BSC6900 UMTS

Installation Guide 2 Tools Required for Installation



2


12/115

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

soldering 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)

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

megohmmeter, optical multimeter, and optical power meter

Special tools ESD wrist strap, glove, wire stripper, clamp pincer, feeder cutter, SMB

crimping tool, RJ-45 crimping tool, and cable cutter

BSC6900 UMTS

Installation Guide 2 Tools Required for Installation



3


13/115

3 Installation ProcessThe BSC6900 installation process includes the installation of the cabinet and its fittings, power

cables and PGND cables, OMUc boards , signal cables, LMT computers, and alarm boxes.

Prerequisites

l The equipment has been unpacked and accepted.

l The tools required for the installation are available.

Procedure

Step 1 Install the cabinet and its fittings. For details, see the N68E-22 Cabinet Installation Guide.

Step 2 Install the power cables and PGND cables.

If... Then...

The type of the cabinet is N68E-22 See 4 Installing Power Cables and PGND

Cables.

The type of the cabinet is N68E-21-N See the description of installing power cables and

PGND cables for the N68E-21-N cabinet in the

N68E-21-N Cabinet Installation Guide.

Step 3 Check and Set the Subrack DIP Switch. For details, see 5 Checking and Setting DIP Switcheson Subracks.

Step 4 Check the Power-On Performance. For details, see 6 Checking the Power-On Performanceof Cabinet.

Step 5 Install the OMU board. For details, see Installing the OMUc Boards.

Step 6 Optional: Install the SAU board. For details, see Installing the SAUc Boards.

Step 7 Install signal cables. For details, see 8 Installing the Signal Cables.

BSC6900 UMTS

Installation Guide 3 Installation Process



4


14/115

NOTE

The same method is used to install signal cables in both the N68E-22 and N68E-21-N cabinets. This

document uses the N68E-22 cabinet as an example.

Step 8 Optional: Install the GPS antenna system. For details, see the GPS Satellite Antenna SystemQuick Installation Guide.

Step 9 Install the computer serving as the LMT and the alarm box. For details, see 9 Installing theAlarm Box and the Computer Serving as the LMT.

Step 10 Attach engineering labels to the cables. For details, see 10 Attaching the Engineering Labelsto the Cables.

Step 11 Check the installed hardware. For details, see 11 Checklist for the Hardware Installation.

----End

BSC6900 UMTS

Installation Guide 3 Installation Process



5


15/115

4 Installing Power Cables and PGND CablesAbout This Chapter

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

power distribution frame (PDF) ,and PGND cables between cabinets. For items and

specifications for checking the installation of the power cables and PGND cables, see 11.1


4.1 Power Ca bles and PGND Cables to Be Installed

Power cables and PGND cables to be installed include external -48 V power cables for

cabinets, external RTN power cables for cabinets, external PGND cables for cabinets, and inter-

cabinet PGND cables.

4.2 Connections of Power Cables and PGND Cables

This section describes the connections of power cables and PGND cables between a BSC6900

cabinet and the PDF and the connections of inter-cabinet PGND cables.

4.3 Principles for Installing Power Cables and PGND Cables

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

install power cables and PGND cables, follow the routing and binding principles.

4.4 Installing Power Cables and PGND Cables Between a BSC6900 Cabinet and the PDF

This section describes how to install power cables and PGND cables for BSC6900 cabinets in

both overhead cabling 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 through PGND cables. PGND cables need to be

installed in adjacent cabinets only when they are installed in combined mode.

BSC6900 UMTS

Installation Guide 4 Installing Power Cables and PGND Cables



6


16/115

4.1 Power Cables and PGND Cables to Be Installed

Power cables and PGND cables to be installed include external -48 V power cables for

cabinets, external RTN power cables for cabinets, external PGND cables for cabinets, and inter-

cabinet PGND cables.

Table 4-1lists the external power cables and PGND cables to be installed for each cabinet.

Table 4-1 Power cables and PGND cables to be installed

Item Color Cross-Sectional Area

(mm2)

AllowedBending Radius(mm)

ConnectorType/ Installation Position

ConnectorType/ Installation Position

Number

External

-48 V

power

cable for

the cabinet

Blue 25/35 30 OT

terminal/-48

V input on

the cabinet

OT

terminal/-48

V output on

the PDF

4

External

RTN

power

cable for

the cabinet

Black 25/35 30 OT terminal/

RTN input

on the

cabinet

OT terminal/

RTN output

on the PDF

4

External

PGND

cable

Green

and

yellow

25/35 30 OT terminal/

PGND input

on the

cabinet

OT terminal/

PGND

output on the

PDF

1

Inter-

cabinet

PGND

cable

Green

and

yellow

6 15 OT terminal/

PGND

busbar in the

cabinet

OT terminal/

PGND

busbar in the

cabinet

3

NOTE

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

appropriate length of cables and crimp terminals onsite.

l The colors of power cables and PGND cables must meet the customer requirements. Table 4-1 lists

only their default colors.

l Whether to use one-hole OT terminals or two-hole OT terminals for power cables and PGND cables

is determined based on customer requirements. Table 4-1 lists the one-hole OT terminals.

l For details about power cables, see Power Cables. For details about PGND cables, see PGND Cables.

NOTE

To facilitate the crimping of OT terminals, crimp them on the ground with hydraulic pliers, and then placethem in the installation positions.

BSC6900 UMTS




7


17/115

4.2 Connections of Power Cables and PGND Cables

This section describes the connections of power cables and PGND cables between a BSC6900cabinet and the PDF and the connections of inter-cabinet PGND cables.

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

Figure 4-1 Connections of power cables and PGND cables

NOTE

In each cabinet, A1 and B1 form a pair of active and standby power supply ports, as do A3 and B3. As

shown in the preceding figure, to create a hot backup, connect ports A1 and A3 to one power supply group

in the PDF, and ports B1 and B3 to a different power supply group.

Connect the PGND cables for a cabinet to the nearest ground bar. If the PDF is located a great distance

from the cabinet (for example, they are not in the same equipment room), connect the PGND cables to the

nearest ground bar that is co-grounded with the PDF instead of connecting them directly to the PDF. In

this case, the methods of installing and routing PGND cables are the same as those of connecting PGND

cables directly to the PDF. In practice, PGND cables must be connected based on customer requirements.

4.3 Principles for Installing Power Cables and PGND

Cables

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

install power cables and PGND cables, follow the routing and binding principles.

Minimum Bending Radius of Power Cables

Table 4-2 lists the requir ements for bending radius of power cables.

BSC6900 UMTS




8


18/115

Table 4-2 Bending radius of power cables

Cross-Sectional Area (mm2) Radius

25 50 mm or larger

35 55 mm or larger

Cable Layout Requirements

l Lay out power cables and PGND cables with future capacity expansion in mind.

l When laying out power cables and PGND cables, separate them from signal cables. Lay

out power cables along outer columns. When you lay out power cables and PGND cables

parallel to signal cables, the space between them must be at least 30 mm.

lThe bending radius of a cable must be five times larger than the diameter of the cable.

l When using the underfloor cabling mode, reserve a surplus length of power cable outside

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

installation of terminals. In addition, lay out cables flat on the top of the cabinet.

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

cables straightly and smoothly.

Cable Binding Requirements

l When binding power cables and PGND cables, separate them from signal cables.

l Keep a 200 mm space between cable ties.

l When using the underfloor cabling mode, route the power cables and PGND cables alongthe middle standing pillar on the front right side of the cabinet.

l Select the appropriate cable ties, either 150 mm or 300 mm according to the diameter and

number of cables.

l Bind the cable ties in the same direction. Cut any excess from the cable ties, cutting surfaces

smoothly without sharp edges.

4.4 Installing Power Cables and PGND Cables Between aBSC6900 Cabinet and the PDF

This section describes how to install power cables and PGND cables for BSC6900 cabinets in

both overhead cabling and underfloor cabling modes.

4.4.1 Installing Power Cables and PGND cable Between theBSC6900 and the PDF in Overhead Cabling Mode

This section describes how to install power cables and PGND cable between a cabinet and the

PDF in overhead cabling mode.

BSC6900 UMTS




9


19/115

Prerequisites

l The cabinet to be connected with power cables and PGND cable has been installed.

l On the PDF, the power distribution switches for the relevant output terminals have been

set to OFF.l All power distribution switches on the power distribution box have been set to OFF.

l Power cables and PGND cable are available.

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

wax strings, and PVC insulation tape.

l The tools required for the installation are available. These tools include a handsaw, a cable

cutter, a wrench, a Phillips screwdriver, a flat-head screwdriver, an electric Phillips

screwdriver (> 5 N•m = 44.25 lbf•in.), diagonal pliers, and hydraulic pliers.

Context

If you are using the overhead cabling mode, route the cables from the PDF through the upper

cable hole into the cable tray and then to the top of each cabinet along the cable tray. Figure

4-2 shows how to install power cables and PGND cable between a cabinet and the PDF in

overhead cabling mode.

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

Procedure

Step 1 Determine the length of each power cable and PGND cable by referring to the related engineeringdesign documents or by measuring the actual cabling route.

Step 2 Uncoil the power cable roll and the PGND cable roll onsite. Measure an appropriate length of cables with a measuring tape or other measuring tools. Then, cut the cables with a cable cutter

(KT35) or a handsaw with 0.8 mm of teeth space. When cutting the cables, leave sufficient slack.

BSC6900 UMTS




10


20/115

NOTICE

If you find the slack insufficient, replace the cables. Do not make connectors or solder joints.

Step 3 Attach temporary labels to both ends of the cables. The contents on these temporary labels arenot necessarily the same as those on the formal labels because they are only for easy

identification.

Step 4 Lay out power cables and PGND cable between a cabinet and the PDF. Routed the power cablesfrom the PDF through the upper cable hole into the cable tray and then to the top of each

cabinet along the cable tray.

NOTE

l If the space between a cable tray and the top of a cabinet exceeds 800 mm, use a cable ladder to facilitate

the cable layout.

l The bending radius of a cable must be five times larger than the diameter of the cable.

Step 5 Connect the power cables and PGND cable for the cabinet.

1. According to the installation position of each cable, determine the exact length required,

and cut off any excess.

2. Obtain the cable terminals delivered with the cabinet. For details, see Assembling the OT

Terminal and the Power Cable. Crimp the OT terminals of the power cable and OT terminals

of PGND cable for the cabinet.

NOTE

OT terminals (M6) are used for the -48 V and RTN power cables whereas OT terminals (M8) are

used for PGND cable on the cabinet side. The type of OT terminals used on the PDF side is determined by the actual situation.

NOTE

To facilitate the crimping of OT terminals, crimp them on the ground with hydraulic pliers, and then

place them in the installation positions.

3. Remove the left and right plastic cover plates from the top rear of the cabinet and cut holes

on the cover plates, matching the holes to the power cable inlets on the power distribution

box.

4. Place both cover plates back to their original positions.

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

-48 V power cable to wiring terminals labeled "3(-)" and "1(-)" in both part A and part Bof the power distribution box, and connect OT terminals of the RTN power cable to 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 RTN power cable to the wiring

terminals in the power distribution box. .

7. Secure the OT terminal of PGND cableto the ground bolt at the rear of the cabinet top.

Step 6 Connect power cables and PGND cable to the PDF output terminals.




Terminal and the Power Cable. Crimp the OT terminals of power cables and PGND cable.

BSC6900 UMTS




11


21/115

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

wiring terminals on the power distribution box.

NOTE

When connecting OT terminals to the wiring terminals, add flat washers and spring washers, and

assemble them in order.

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

Figure 4-3 Installing an OT terminal

(1) Cable (2) Heat shrink tubing (3) Nut

(4) Spring washer (5) Flat washer (6) Wiring terminal

4. Record the installation results in 12 Installation Records.

----End

4.4.2 Installing Power Cables and PGND Cable Between theBSC6900 and the PDF in Underfloor Cabling Mode

This section describes how to install power cables and PGND Cable between a cabinet and the

PDF for the BSC6900 in underfloor cabling mode.

Prerequisites

l The cabinet to be connected with power cables and PGND Cable has been installed.

l On the PDF, the power distribution switches for the relevant output terminals have been

set to OFF.

BSC6900 UMTS




12


22/115

l All power distribution switches on the power distribution box have been set to OFF.

l Power cables and PGND Cable are available.

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

wax strings, PVC insulation tape, and lifting sling.

l The tools required for the installation are available. These tools include a handsaw, a cable

cutter, a wrench, a Phillips screwdriver, a flat-head screwdriver, an electric Phillips

screwdriver (> 5 N•m = 44.25 lbf•in.), diagonal pliers, and hydraulic pliers.

Context

If you are using the underfloor cabling mode, route the cables from the PDF through the cable

hole under the PDF, to the bottom of the cabinet beneath the ESD floor to the top of the cabinet

along the middle standing pillar. Figure 4-4Figure 4-5 shows how to install power cables and

PGND Cable between a cabinet and the PDF in underfloor cabling mode.

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

BSC6900 UMTS




13


23/115

Figure 4-5 Installing power cables and PGND Cable in underfloor cabling mode

Procedure

Step 1 Determine the length of each power cable and PGND cable by referring to the related engineeringdesign documents or by measuring the actual cabling route.

BSC6900 UMTS




14


24/115

Step 2 Uncoil the power cable roll and the PGND cable roll onsite. Measure an appropriate length of cables with a measuring tape or other measuring tools. Then, cut the cables with a cable cutter

(KT35) or a handsaw with 0.8 mm of teeth space. When cutting the cables, leave sufficient slack.

NOTICE

If you find the slack insufficient, replace the cables. Do not make connectors or solder joints.

Step 3 Attach temporary labels to both ends of the cables. The contents on these temporary labels arenot necessarily the same as those on the formal labels because they are only for easy

identification.

Step 4 Lay out power cables and PGND Cable according to cable routing and engineering requirements.

1. Route four pairs of power cables and one PGND cable from the cable outlet at the bottomof the PDF. Then route the cables under the ESD floor for the cabinet.

2. Divide the four pairs of power cables into two groups . Use a temporary cable tie to bind

one group with the PGND cable. Repeat this procedure with the other group. Route the two

groups of cables to the middle standing pillars on the left and right sides of the cabinet,

respectively.

3. Place one end of the lifting sling on the top of the middle standing pillar. Route the other

end of the lifting sling to the bottom of the cabinet through the middle standing pillar, and

bind it to the power cables and PGND cable at the bottom of the middle standing pillar.

4. Pull the upper end of the lifting sling to lift the power cables and PGND cable to the top of

the cabinet along the middle standing pillar.

5. Remove the lifting sling and the temporary cable ties on the power cables and PGND cable.

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




Terminal and the Power Cable. Crimp the OT terminals of the power cable and OT terminals

of the PGND cable for the cabinet.

NOTE

OT terminals (M6) are used for the -48 V and RTN power cables on the cabinet side. OT terminals

(M8) are used for PGND Cable. The type of OT terminals used on the PDF side is determined by theactual situation.

To facilitate the crimping of OT terminals, crimp them on the ground with hydraulic pliers, and then

place them in the installation positions.

3. Remove the left and right plastic cover plates from the top rear of the cabinet and cut holes

on the cover plates, matching the holes to the power cable inlets on the power distribution

box.

4. Place both cover plates back to their original positions.

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

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

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

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

BSC6900 UMTS




15


25/115

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

terminals in the power distribution box. .

7. Secure the OT terminals of PGND Cable to the ground bolt at the rear of the cabinet top.

Step 6 Connect power cables and PGND Cable to the PDF output terminals.1. According to the installation position of each cable, determine the exact length required,



Terminal and the Power Cable. Crimp the OT terminals of power cables and PGND Cable.

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

wiring terminals on the power distribution box.

NOTE

When connecting OT terminals to the wiring terminals, add flat washers and spring washers, and

assemble them in order.

Figure 4-6 shows how to install an OT terminal.

Figure 4-6 Installing an OT terminal

(1) Cable (2) Heat shrink tubing (3) Nut

(4) Spring washer (5) Flat washer (6) Wiring terminal

4. Record the installation results in 12 Installation Records.

----End

BSC6900 UMTS




16


26/115

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 through PGND cables. PGND cables need to be

installed in adjacent cabinets only when they are installed in combined mode.

Prerequisites

The power distribution switches for the relevant output terminals have been set to OFF.

Procedure

Step 1 As described in 4.2 Connections of Power Cables and PGND Cables, use inter-cabinet PGNDcables to connect the upper, middle, and lower PGND busbars on the mounting bar of adjacent

cabinets as shown in Figure 4-7.

Figure 4-7 Installing PGND cables for adjacent cabinets

----End

BSC6900 UMTS




17


27/115

Follow-up Procedure

Record the installation results in 12 Installation Records.

BSC6900 UMTS




18


28/115

5 Checking and Setting DIP Switches onSubracks

This section describes how to check and set the DIP switch on a subrack. In general, subracks

are installed in the cabinet before delivery.

Prerequisites

Subracks have been installed in the cabinet.

Context

NOTICE

l Wear an ESD wrist strap and connect it to the ESD connector on the cabinet before performing

any operations. For details, see Wearing an ESD Wrist Strap.

l DIP switches cannot be set after the cabinet is powered on. Therefore, check and set the DIP

switches before powering on the cabinet.

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

switch.

Figure 5-1 DIP switch cover

BSC6900 UMTS

Installation Guide 5 Checking and Setting DIP Switches on Subracks



19


29/115

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

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

of each bit.

Table 5-1 Definition of each DIP bit

DIP Bit Definition

1 (the least significant bit) Subrack number setting bit

2 Subrack number setting bit




6 Odd parity check bit

7 Reserved bit, generally set to ON

8 (the most significant bit) Startup type of the subrack, generally set to

OFF

NOTE

l For the inventory sites upgrading from

BSC6000 to BSC6900, keep the former

settings.

l For the new sites in BSC6900, the bit is

conservative and is fixed to OFF.

The DIP switch uses odd parity check, so the number of bits that are set to OFF must be odd.

The setting is as follows:

1. Set bit 1 to bit 5.

2. Set bit 7 to ON.

3. Set bit 8 to OFF.

4. Count the number of bits that are set to OFF.

l

If the number of bits is even, set bit 6 to OFF.l If the number of bits is odd, set bit 6 to ON.

Table 5-2 lists the DIP switch setting.

BSC6900 UMTS




20


30/115

Table 5-2 DIP switch setting

SubrackNo.

DIP Bit DIP SwitchSetting

1 2 3 4 5 6 7 8

0 0 0 0 0 0 0 0 1

ON ON ON ON ON ON ON OFF

1 1 0 0 0 0 1 0 1

OFF ON ON ON ON OFF ON OFF

2 0 1 0 0 0 1 0 1

ON OFF ON ON ON OFF ON OFF

3 1 1 0 0 0 0 0 1

OFF OFF ON ON ON ON ON OFF

4 0 0 1 0 0 1 0 1

ON ON OF

F

ON ON OFF ON OFF

5 1 0 1 0 0 0 0 1

OFF ON OF

F

ON ON ON ON OFF

Procedure

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

Step 2 Turn the cover around the lower right screw and open the cover. Set the DIP switch.

Step 3 Attach a formal label or temporary label to the subrack. The contents on the temporary label arenot necessarily the same as those on the formal labels because they are used for identifying a

subrack during BSC6900 software commissioning.

----End

Follow-up Procedure

Record the checking and setting results of the DIP switch in 12 Installation Records.

BSC6900 UMTS




21


31/115

6 Checking the Power-On Performance ofCabinet

This section describes how to check the power supply to cabinets, fan assembly, and boards.

Prerequisites

l Power cables and PGND cables between a cabinet and the PDF are installed.

l Subracks, fan assemblies, and boards are installed.

l A multimeter required for the installation is available.

Context

The cabinet uses a DC power supply. For details, see Technical Specifications of the Power

Distribution Box.

NOTICE

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

any operations.

You need not to remove the board for performing the power-on check. During powering on a

subrack, do not insert a board into or remove a board from the subrack to avoid static damageto boards.

Procedure

Step 1 Set the corresponding output switches on the PDF and all the output switches on the power distribution box to OFF.

Step 2 Use the multimeter to measure the resistance at the power output terminal for the PDF and atthe input and output terminals for the power distribution box. Ensure that short-circuiting does

not occur either between the -48 V working power and the RTN working ground or between the

-48 V working power and the PGND protection ground.

BSC6900 UMTS

Installation Guide 6 Checking the Power-On Performance of Cabinet



22


32/115

Step 3 Set the output switches on the PDF to ON and all the output switches on the power distribution box to OFF.

Then, the power distribution box starts self-check. (The RUN and ALM indicators on the power

distribution box are on and the buzzer sounds.) After the self-check, the power distribution box

requests registering at the SCUb board (the RUN indicator on the power distribution box blinksat 2 Hz) until the registration is successful (the RUN indicator blinks at 0.5 Hz). For details about

the indicators on the power distribution box, see Indicators on the Power Distribution Box.

Step 4 Set the multimeter to the voltage scale. Use the multimeter to measure the output voltage of thePDF or the input voltage of the power distribution box. Ensure that the voltages range from -40

V to -57 V.

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

Step 6 Set the multimeter to the voltage scale. Use the multimeter to check whether the output power provided by the power distribution box for each subrack ranges from -40 V to -57 V. Check

whether the fan assembly in the subrack can be normally started and whether the power supply

to the boards in the subrack is normal.

l If a subrack is powered on and started normally, the green STATUS indicator on the panel

of the fan assembly blinks. If exceptions occur, turn off the switches on the power distribution

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

box is normal and the power cables are installed correctly. For details about the indicators

on the fan assembly, see Indicators on the Fan Assembly.

l If a subrack is powered on and started normally, the RUN indicator on the board panel is ON

or blinks. If all the indicators on a board are OFF, the board or its slot may be faulty. Contact

Huawei technical support to resolve this problem.

l If indicators on all the boards in a subrack are OFF, turn off the switches on the power

distribution box and the PDF immediately. Check whether the output voltage of the power distribution box is normal and the power cables are installed correctly.

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

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

----End

Follow-up Procedure

Record the power-on check results in 12 Installation Records. Set the corresponding output

switches on the PDF and all the output switches on the power distribution box to OFF.

BSC6900 UMTS

Installation Guide 6 Checking the Power-On Performance of Cabinet



23


33/115

7 Installing and Setting BoardsAbout This Chapter

Most boards except the OMUa/OMUc/SAUa/SAUc boards are installed in subracks before the

delivery. If AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU boards are installed in the cabinet,

check and set the DIP switches of the boards. Install the OMUa/OMUc/SAUa/SAUc boards

onsite.

7.1 Safety Pr ecautions 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.

7.2 Installing the OMUa/OMUc/SAUa/SAUc Boards

This section describes how to install the OMUa/OMUc/SAUa/SAUc board in the MPS.

7.3 Checking and Setting the DIP Switch on the Board

The boards are installed in the subrack before delivery. If the AEUa/AOUa/PEUa/PEUc/

POUa /PAMU/PFCU board is configured in the cabinet, you need to check and set the DIP

switches of the AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU board.

7.4 DIP Switches on the BSC6900 Boards

This section describes the DIP switches on the BSC6900 AEUa/AOUa/PEUa/PEUc/POUa

boards and the PAMU/PFCU boards.

BSC6900 UMTS

Installation Guide 7 Installing and Setting Boards



24


34/115

7.1 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 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 mill be severely damaged.

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

multimeter must range from 0.8 megohm to 1.2 megohms.

l see Wearing an ESD Wrist Strap for the method of measuring the resistance.

Precautions During Operation

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

l See Wearing an ESD Wrist Strap for the procedure for wearing an ESD wrist strap or gloves.

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

7.2 Installing the OMUa/OMUc/SAUa/SAUc Boards

This section describes how to install the OMUa/OMUc/SAUa/SAUc board in the MPS.

Prerequisites

l The tools required for the installation are available. The tools include ESD wrist strap or

gloves and Phillips screwdriver.

l The boards to be installed are available.

Context

For the position of the OMUa/OMUc/SAUa/SAUc board in the subrack, see Configuration of

a Subrack and Principles for Installing Boards.

BSC6900 UMTS




25


35/115

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 engineers

to replace the board.

Step 2 As shown in part a of Figure 7-1, press the self-locking latches on the front panel and turn theejector levers 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 7-1.

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 in

part 3 of Figure 7-1.

NOTICEWhen inserting the board into the subrack, push the board slowly and steadily to avoid damaging

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

Figure 7-1 Installing the board

BSC6900 UMTS




26


36/115

Step 4 As shown in part 4 of Figure 7-1, turn the two ejector levers inwards at an angle of about 60°until they hook on to the self-locking latches on the front panel. Ensure that the board is in 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 Figure7-1.

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 Installation Records.

7.3 Checking and Setting the DIP Switch on the Board

The boards are installed in the subrack before delivery. If the AEUa/AOUa/PEUa/PEUc/

POUa /PAMU/PFCU board is configured in the cabinet, you need to check and set the DIP

switches of the AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU board.

Prerequisites

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

wrist strap, ESD gloves, ESD pad, ESD tweezers, Phillips screwdriver and flat-head

screwdriver.

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 AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU board

are set by default. The settings of the DIP switches on the AEUa/AOUa/PEUa/PEUc/POUa/

PAMU/PFCU board should be checked according to the transmission mode used onsite and the

slots housing the boards. If the settings do not match the actual conditions, you need to adjust

the settings of the DIP switches.

The PFCU board is installed in the front of the fan box. Operators only need to pull the fan box

out of the subrack and check the DIP switches on the PFCU board.

NOTICE

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.

BSC6900 UMTS




27


37/115

Procedure

Step 1 Determine the position of the AEUa/AOUa/PEUa/PEUc/POUa/PAMU/PFCU board in thesubrack, and then remove any of the preceding board from the subrack. For details on how to

remove the AEUa/AOUa/PEUa/PEUc/POUa board, see Removing the Board. For details on

how to remove the PAMU board, see steps 3 to 6 in Replacing a PAMU Board. For details on

how to remove the PFCU board, see steps 2 to 4 in Replacing a Fan Assembly.

Step 2 Determine the proper settings of the DIP switches based on the board type, actual transmissionmode onsite, or the slot that housing the board.

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

If... Then...

The settings of the DIP switches on the

board match the actual conditions

Do no modify the settings of the DIP switches.

Go to Step 5.

The settings of the DIP switches on the

board do not match the actual conditions

Modify the settings of the DIP switches by

performing 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.

l For details about the settings of the DIP switches on the AEUa board, see DIP Switches on

the AEUa Board.

l For details about the settings of the DIP switches on the AOUa board, see DIP Switches on

the AOUa Board.

l For details about the settings of the DIP switches on the PEUa board, see DIP Switches on

the PEUa Board.

l For details about the settings of the DIP switches on the PEUc board, see DIP Switches on

the PEUc Board.

l For details about the settings of the DIP switches on the POUa board, see DIP Switches on

the POUa Board.

l For details about the settings of the DIP switches on the PFCU board, see DIP Switch on the

PFCU Board.

l For details about the settings of the DIP switches on the PAMU board, see DIP Switch on

the PAMU Board.

Step 5 Install the board in its original slot. For details on how to install the AEUa/AOUa/PEUa/PEUc/POUa boards, see Installing the Board. For details on how to install the PAMU board, see steps

7 to 12 in Replacing a PAMU Board. For details on how to install the PFCU board, see steps 5

to 7 in Replacing a Fan Assembly.

Step 6 Check and set all the DIP switches on the board by repeating steps Step 1 to Step 5.

----End

Follow-up Procedure

Record the checking and setting results of the DIP switches on the AEUa/AOUa/PEUa/PEUc/

POUa/PAMU/PFCU board in the templates provided in 12 Installation Records.

BSC6900 UMTS




28


38/115

7.4 DIP Switches on the BSC6900 Boards

This section describes the DIP switches on the BSC6900 AEUa/AOUa/PEUa/PEUc/POUa

boards and the PAMU/PFCU boards.

Table 7-1 DIP Switches on BSC Components

DIP Switches onBSC Components

Description

DIP Switch on the

AEUa Board

For details, see BSC6900 Hardware DescriptionDIP Switches on

the AEUa Board

DIP Switch on the

AOUa Board


the AOUa Board

DIP Switch on the

PEUa Board


the PEUa Board

DIP Switch on the

PEUc Board


the PEUc Board

DIP Switch on the

POUa Board


the POUa Board

BSC6900 UMTS




29


39/115

8 Installing the Signal CablesAbout This Chapter

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. For items and specifications for checking the installation of signal cables, see 11.1


8.1 Signal Ca bles to Be Installed

This section describes the signal cables to be installed on site.

8.2 Principles of Installing Signal CablesThis section describes principles of installing signal cables. The principles involve minimum

bending radius, cable layout, cable routing, and cable binding.

8.3 Installing the Clock Signal Cables

The clock signal cables refer to the Y-shaped clock signal cable, line clock signal cable and the

BITS clock signal cable.

8.4 Installing the Ethernet Cables

This section describes how to install the Ethernet cables. These cables are the inter-SCUa cable,

the Ethernet cable between the OMUa/OMUc board and the U2000 or the LAN of the customer,

and the Ethernet cable between the FG2a/FG2c board and the other device.

8.5 Installing the E1/T1 CablesThis section describes how to install the E1/T1 cables between the AEUa/PEUa/PEUc board

and the DDF.

8.6 Installing the Optical Cables

This section describes how to install the optical cables between the AOUa/AOUc/GOUa/GOUc/

GOUe/POUa/POUc/UOIa/UOIc board and the other equipment.

8.7 Installing the EMU RS485 Communication Cables

This section describes how to install the EMU RS485 communication cable between the

BSC6900 and the EMU.

8.8 Connecting the GPS Surge Protector to the GCGa/GCGb Board

BSC6900 UMTS

Installation Guide 8 Installing the Signal Cables



30


40/115

For cabinets equipped with the GCGa/GCGb board, install an indoor surge protector on the top

of the cabinet. Use the cable for the input of the satellite signals to connect the port Protect of

the GPS surge protector on the top of the cabinet and the port ANT on the GCGa/GCGb board.

BSC6900 UMTS




31


41/115

8.1 Signal Cables to Be Installed

This section describes the signal cables to be installed on site.

Table 8-1 lists the signal cables to be installed.

Table 8-1 Signal cables

Name Cable Type Function Remarks

Clock

signal

cables

Y-shaped clock

cable

Connects the GCUa/

GCGa/GCUb/GCGb

board to the SCUb board.

BSC6900 uses the BITS clock

cables to transmit the reference

clock signals extracted from the

BITS clock source, see 8.3

Installing the Clock Signal

Cables.

Line clock

signal cable

Connects the BSC6900

interface board to theGCUa/GCGa/GCUb/

GCGb board.

BITS clock

signal cable

Connects the GCUa/

GCGa/GCUb/GCGb

board to the BITS clock.

Ethernet

cable

Unshielded

straight-

through cable

Connects the SCUb boards

in the main BM and TC

subracks.

When the capacity of a site is

expanded, the inter-SCUb cables

need to be made and installed on

site, see Installing the Inter-

SCUb SFP+ High-Speed CablesBetween Different Subracks.

NOTE

GE ports numbered from 0 to 7 are

recommended for the

interconnection between SCUb

boards.

Shielded

straight-

through cable

Connects the OMUc/

SAUc board to the U2000

or the LAN of the

customer.

The shielded straight-through

cables are made before delivery.

Connects the FG2a/FG2c

board to other devices.

E1/T1

cable

75-ohm coaxial

cable

Connects the AEUa/PEUa/

PEUc board to the DDF.

The coaxial cables or twisted

pair cables are selected

according to the site survey, see

8.5 Installing the E1/T1

Cables.

Active/standby

75-ohm coaxial

cable

120-ohm

twisted pair

cable

BSC6900 UMTS




32


42/115

Name Cable Type Function Remarks

Active/standby

120-ohm

twisted pair cable

Optical

cable

LC/PC-LC/PC

single-mode/

multimode

optical cable or

LC/PC-FC/PC

single-mode/

multimode

optical cable or

LC/PC-SC/PC

single-mode/multimode

optical cable

Connects the AOUa/

AOUc/GOUa/GOUc/

GOUe/POUa/POUc/

UOIa/UOIc board to the

ODF.

The single-mode optical cables

are yellow, and the multimode

optical cables are orange, see 8.6

Installing the Optical Cables.

High-

speed

cable

SFP+ high-

speed cable

Connects SCUb boards in

different subracks.

When a new site is deployed, the

inter-SCUb cables are already

installed on the MPR cabinet

configured with two or three

subracks or the TCR cabinet.

When the capacity of a site is

expanded, the inter-SCUb cables

need to be made and installed on

site, see Installing the Inter-

SCUb SFP+ High-Speed Cables

Between Different Subracks.

NOTE

10GE ports numbered from 8 to 11

are recommended for the

interconnection between SCUb

boards.

Other

signal

cables

EMU RS485

communicatio

n cable

Connects the power

distribution box to the

EMU.

The crossover cables are made

before delivery.

Signal cable of

the alarm box

Connects the alarm box to

the Local Maintenance

Terminal (LMT) PC.

The crossover cables are made

before delivery.

For details about the signal cables, see Cables.

BSC6900 UMTS




33


43/115

8.2 Principles of Installing Signal Cables

This section describes principles of installing signal cables. The principles involve minimum bending radius, cable layout, cable routing, and cable binding.

Principles of Installing Signal Cables

When installing signal cables, take the following precautions:

l Optical cables should not be stretched roughly or stepped on, and heavy objects should not

be placed on the cable to avoid damage.

l Optical connectors not in use must be covered with a dustproof cap.

l If connectors of signal cables are made before delivery, pack the connectors with soft and

durable materials such as a packing bag during cabling.

l Protect jackets of signal cables from being damaged during the routing.

l When coiling the extra length of optical cables on the fiber management tray, apply proper

force to avoid damaging the optical.

l The actual installation positions must meet the requirements of site survey and data

configur ation.

l When installing the signal cables, you should route the extra length of the interconnection

cables on both sides of the cabinet according to the requirement for the bending radius of

the cables.

lThe related operation guide is intended for only the installation method. The actualinstallation position of cables should meet the requirements of site survey and should be

consistent with the data configuration scheme.

Minimum Bending Radius

The bending radius of the signal cable meets the requirements of all types of cables. Table

8-2 lists the bending radius of the signal cables.

Table 8-2 Requirements for the bending radius

Wire Bending Radius

BITS clock signal cable Not less than 45 mm

Y-shaped clock cable Not less than 25 mm

Ethernet cable Not less than 25 mm

Optical cable Not less than 40 mm

SFP+ high-speed cable Not less than 40 mm

E1/T1 cable Not less than 40 mm

EMU RS485 Communication Cable Not less than 25 mm

BSC6900 UMTS




34


44/115

Wire Bending Radius

OMUc serial cable

NOTE

The port does not require a signal cableor connection to other devices when the

system runs properly. Therefore,

equipment security is not affected.

Not less than 25 mm

Signal cable of the alarm box Not less than 25 mm

Principles of Routing the Signal Cables

To facilitate maintenance and capacity expansion, follow these principles when routing cables.

The layout sequence in over head and underfloor cabling modes must be the same.

l The cables can be routed either on the front side first or on the rear side first. The cables

meant for the front of the cabinet must be laid only in the front side of the cabinet. Follow

the same principle for the cables meant for the rear of the cabinet.

l whereas routing the cables at the back of the cabinet, you should route the E1/T1 cables

before routing the optical cables.

Requirements of Routing the Signal Cables

The requirements for routing signal cables are as follows:

l Protect the jackets of the signal cables from being damaged during the routing.

l Hold the connector when plugging out the signal cables to protect the signal cable from

damage.

l When installing the signal cables, you should route the extra length of the interconnection

cables on both sides of the cabinet according to the requirement for the bending radius of

the cables.

l For combined cabinets, the extra signal cable in front of the cabinet should be routed along

the cable ladder or at one side of the cabinet. It should not be placed in the gap between the

combined cabinets.

l

The signal cables must be separated from the power cables.l The bending radius of the signal cable satisfies the requirements of all kinds of cables.

Table 8-2 lists the bending radius of the signal cables.

l Extra length of the signal cable should be reserved near the connector.

l The signal cables must be neatly laid in the rack, according to the engineering design.

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

a vertical cable ladder must be used. The signal cables and the lower part of the downward

cable ladder must be bound together.

l The routing should be in accordance with the engineering design.

l The cabling is clear, proper, and smooth at the bends. The cables are laid in parallel.

l The signal cables layout facilitates maintenance and future expansion.

BSC6900 UMTS




35


45/115

Requirements of Binding the Signal Cables

The requirements of binding the signal cables are as follows:

l The signal cables and power cables must be bound separately. The spacing between cable

ties must be at least 150 mm.

l The twine for binding the cables must be coated with wax.

l The signal cables must be bound at the entrance and exit of the cable trough and at the

turning points, as shown in Figure 8-1.

Figure 8-1 Bending and binding signal cables

l The optical cables must be neatly bound in pairs.

l The cables on the cable tray must be bound neatly.

l The cable ties must face the same direction and be tied with proper tightness.

l The cable ties must be placed at regular intervals, 200 mm for E1/T1 cables , and 150 mm

for optical cables.

l The extra length of the cable ties must be cut and the cut surface must be smooth.

8.3 Installing the Clock Signal Cables

The clock signal cables refer to the Y-shaped clock signal cable, line clock signal cable and the

BITS clock signal cable.

8.3.1 Installing the Y-Shaped Clock Cables

This section describes how to install the Y-shaped clock cables between the GCUa/GCUb/

GCGa/GCGb board in the MPS and the SCUa/SCUb board in the EPS. When a new site is

deployed, the Y-shaped clock cables are already installed on the MPR cabinet configured with

two or three subracks. When the capacity of a site is expanded, the Y-shaped clock cables need

to be installed on site.

Prerequisites

l The Y-shaped clock cables required for the installation are available.

l The required cable ties and wax strings are available.

BSC6900 UMTS




36


46/115

l The tools required for the installation are available. The tools are ESD gloves or ESD wrist

strap, and cable cutter.

l The wires in the Y-shaped clock cables are intact, the jacket of the cable is undamaged,

and the pins in the connector are straight.

Context

NOTICE

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.

For the installation positions of the Y-shaped clock cables in the cabinet, see Connections of Signal Cables for the MPR.

The Y-shaped clock cable has three specifications in length: 2.0 m, 2.5 m, and 9.7 m. The 2.0

m cable is used to connect the GCUa/GCUb/GCGa/GCGb board to the SCUa/SCUb board in

two adjacent subracks in one cabinet. The 2.5 m cable is used to connect the GCUa/GCUb/

GCGa/GCGb board to the SCUa/SCUb board in different subracks in one cabinet. The 9.7 m

cable is used to connect the GCUa/GCUb/GCGa/GCGb board to the SCUa/SCUb board in

different cabinets.

Procedure

Step 1 Attach formal labels to identify the signal cables of the same type when the number of signalcables of the same type to be installed is more than one.

Step 2 Put one end with an RJ45 connector to the SCUa/SCUb board. Take one end of the cable thathas two RJ45 connectors and lead it from the SCUa/SCUb board to the distribution post in the

cable trough. Estimate the length of the cable between the SCUa/SCUb board and the GCUa/

GCUb/GCGa/GCGb board. The bending radius must be at least 25 mm. Then, bind the cable

and the distribution post. Route the cable along the cable trough to the GCUa/GCUb/GCGa/

GCGb board.

Step 3 Route the cable to the GCUa/GCUb/GCGa/GCGb according to the requirements specified in

8.2 Principles of Installing Signal Cables and the engineering requirements. The cabling of the Y-shaped clock cables is described in Table 8-3.

Table 8-3 Cabling of the Y-shaped clock cables

Condition Cabling mode Action

The SCUa/SCUb and the

GCUa/GCUb/GCGa/GCGb

are located in the same

cabinet.

Cabling within the cabinet Lead the optical cables to the

GCUa/GCUb/GCGa/GCGb

board through the cable

trough beneath the MPS

along the column of the

cabinet.

BSC6900 UMTS




37

8/18/2019 Bsc6900 Umts Installation Guide(v900r017

Bsc6900 Umts Installation Guide(v900r017c10_01)(PDF)-En

Documents

Transcript of Bsc6900 Umts Installation Guide(v900r017c10_01)(PDF)-En