BBU3806 Hardware Installation(1.50)

(1)

Huawei Technologies Proprietary

HUAWEI

BBU3806 WCDMA Base Band Unit

Installation Manual – Hardware Installation

V100R005

(2)

BBU3806 WCDMA Base Band Unit

Installation Manual

Volume _{Hardware Installation}

Manual Version _{T2-030487-20050630-C-1.50} Product Version _V100R005

BOM _31041987

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters.

Huawei Technologies Co., Ltd.

Address: Administration Building, Huawei Technologies Co., Ltd., Bantian, Longgang District, Shenzhen, P. R. China Postal Code: 518129

Website: http://www.huawei.com

(3)

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks

, HUAWEI, C&C08, EAST8000, HONET, , ViewPoint, INtess, ETS, DMC, TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, M900/M1800, TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA, iTELLIN, HUAWEI OptiX, C&C08iNET, NETENGINE, OptiX, iSite, U-SYS, iMUSE, OpenEye, Lansway, SmartAX, infoX, TopEng are trademarks of Huawei Technologies Co., Ltd.

All other trademarks mentioned in this manual are the property of their respective holders.

Notice

The information in this manual is subject to change without notice. Every effort has been made in the preparation of this manual to ensure accuracy of the contents, but all statements, information, and recommendations in this manual do not constitute the warranty of any kind, express or implied.

(4)

Summary of Updates

This section provides the update history of this manual and introduces the contents of subsequent updates.

Update History

This manual is updated for a major product version to maintain consistency with system hardware or software versions and to incorporate customer suggestions.

Manual Version Notes

(5)

Huawei Technologies Proprietary

About This Manual

Release Notes

The product version that corresponds to the manual is BBU3806 WCDMA Base Band Unit V100R005.

Organization

The manual describes how to install BBU3806 and related cables. There are seven chapters and four appendixes in the manual.

Chapter 1 BBU3806 Hardware Structure describes the hardware structure of

BBU3806.

Chapter 2 Installation Procedure describes the installation procedure of BBU3806.

Chapter 3 Operating Environment Requirements describes the operating

environments for BBU3806.

Chapter 4 Installation Preparations describes the preparations before installing

BBU3806.

Chapter 5 Installing BBU3806 describes how to install BBU3806.

Chapter 6 Installing Cables describes how to install BTS3806 cables.

Chapter 7 Checking Hardware Installation describes the checkup work after the

installation of BBU3806.

Appendix A Making OT Terminal of Power Cable describes how to make an OT

terminal of the power cable.

Appendix B Making Connector of Communication Cable describes how to make a

connector of the communication cable.

Appendix C Engineering Labels for Cables describes the types and usage

specifications of cable labels.

Appendix D Cleaning Optical Fiber Connector describes how to clean an optical

(6)

Intended Audience

The manual is intended for the following readers:

z Installation personnel & technicians

z Telecom management personnel & WCDMA mobile network engineers Conventions

This document uses the following conventions:

I. General conventions

Convention Description

Arial Normal paragraphs are in Arial.

Arial Narrow Warnings, cautions, notes and tips are in Arial Narrow.

II. Symbols

Eye-catching symbols are also used in this document to highlight the points worthy of special attention during the operation. They are defined as follows:

Caution, Warning, Danger: Means reader be extremely careful during the operation.

Note, Comment, Tip, Knowhow, Thought: Means a complementary description.

Environmental Protection

This product has been designed to comply with the requirements on environmental protection. For the proper storage, use and disposal of this product, national laws and regulations must be observed.

(7)

Installation Manual - Hardware Installation

BBU3806 WCDMA Base Band Unit Safety Precautions

Huawei Technologies Proprietary 1

Safety Precautions

1 Overview

This section covers safety precautions to take when you install and maintain Huawei network equipment.

Caution:

Before any operation, read the operation instructions and precautions to prevent accidents. The Caution, Attention, Warning, and Danger in manuals are merely supplements to basic safety precautions.

Before installing and maintaining Huawei products, you have to:

z Be familiar with basic knowledge of safe operation

z Undergo relevant training

z Get qualified for related operations.

Abide by local safety regulations. The safety precautions in this manual only serve as supplements to these regulations.

Take the precautions and follow specific safety instructions to operate Huawei products and equipment. Huawei is not liable for any damages caused by violating:

z universal safety regulations

z safety codes on design, production and equipment use The people to install and maintain Huawei products need:

z Undergo strict training

z Master the correct operation methods

z Keep various safety precautions in mind.

1.1 Symbols

The symbols in this manual, such as the warning symbols in Table 1, indicate the safety precautions to take during installation and maintenance.

(8)

The safety level is to the right of the symbol. The safety instructions are below the symbol.

Danger:

It stresses factors that may result in casualties, injuries, or equipment damage.

Warning:

It stresses factors that may result in serious or major injuries or equipment damage.

Attention:

It stresses factors that may result in major injuries or equipment damage.

Caution:

It stresses factors that may result in injuries or equipment damage.

Table 1 shows the meaning of safety symbols.

Table 1 Meaning of safety symbols

Symbol Meaning

Common warning symbol: indicates general safety precautions

Anti-static symbol: indicates that equipment is electrostatic-sensitive

Live-line symbol: indicates dangerous voltage

(9)

Symbol Meaning

Laser symbol: indicates powerful laser beam

Scald symbol: indicates equipment surface with high temperature that might scald people. Never touch the surface with bare hands risking scald.

2 Toxic Articles

2.1 Beryllium Oxide

Warning:

Some equipment parts contain toxic beryllium oxide. These parts include the power amplifier circuit and combiner circuit.

z The beryllium oxide in some parts injures human body only when the parts are damaged. The people to contact or handle the parts should be aware of the danger and take precautions.

z Place these parts in a safe place to prevent beryllium oxide leakage from mechanical damages.

z Do not discard the parts containing beryllium at random. Follow local regulations to perform chemical treatment or special waste treatment on them.

2.2 Hydrochloride

Warning:

Some equipment parts contain hydrochloride. The burning of these parts generates toxic gas.

Prevent such parts from burning.

Do not discard the parts at random. Follow local regulations to perform chemical treatment or special waste treatment on them.

(10)

2.3 Hydrofluoride

Warning:

Some equipment parts contain hydrofluoride. The burning of these parts generates toxic gas.

Prevent such parts from burning.

Do not discard the parts at random. Follow local regulations to perform chemical treatment or special waste treatment on them.

3 Electrical Safety

3.1 High Voltage

Danger:

High voltage power supply provides electricity for equipment operation. Direct contact or indirect contact thru damp objects with high-voltage wires or mains supply may be fatal.

z Follow local safety regulations to install AC power supply equipment. The people engaged in AC power supply must be qualified for high-voltage and AC operations.

z Remove electrical conductors such as watch, bracelets, and rings before operation.

z When detecting that the cabinet is wet, switch off power supply at once.

z Keep the equipment dry in humid places.

Warning:

Improper high-voltage operations may result in fire and electric shocks. Follow local codes to lay AC cables. Have high-voltage operators trained and qualified.

(11)

3.2 Power Cable

Caution:

Never install or remove electrified power cables. Electric spark or arc may result from contact of power cable with conductors, causing fires or eye injury.

z Be sure to turn off power before installing and removing power cables.

z Before connecting cables, make sure that the cables and cable tags are correct.

3.3 Fuse

Caution:

Never install or remove electrified fuses.

z Only technicians qualified for high-voltage operations can install or remove fuses.

z Be sure to switch off power before replacing AC fuses.

3.4 Tools

Warning:

High-voltage and AC operations call for special tools instead of general-purpose or makeshift tools.

3.5 Drilling Holes

Warning:

Do not drill on the cabinet at will. Improper drilling may damage cables inside the cabinet. The metal filings resulting from the drilling may fall into the cabinet and short-circuit the circuit board.

(12)

z Protect your eyes from flying metal filings.

z Prevent metal filings from falling into the cabinet.

z Drill at proper places to avoid affecting the electromagnetic shielding performance of the cabinet.

z After drilling, remove all the metal filings at once.

3.6 Thunderstorm

Danger:

Never work on high-voltage and AC or work on steel towers and masts in thunderstorms.

Thunderstorms generate powerful electromagnetic fields in air. Ground the equipment properly to avoid thunder stroke.

3.7 Static Electricity

Caution:

Static electricity generated on human body may damage the electrostatic-sensitive parts on the circuit board, such as large-scale integrated circuit (IC).

z In dry climate, the electrostatic charge carried by the human body may be up to 30 kV. The charge may remain on the human body for rather a long period. When an operator with electrostatic charge contacts a part, the electric discharge may damage the part.

z Before contacting any equipment, hand-held plug-in boards, circuit boards or IC

chips, put on an anti-static wrist strap with one end well grounded to protect sensitive parts from static electricity on your body.

z Before touching any board or module, discharge the static electricity in your body by wearing an anti-static wrist strap.

z Add a resistance over 1M between the strap and the grounding point to protect

yourself from electric shock. The resistance over 1M is reliable in terms of electrostatic voltage discharging. Check the anti-static wrist strap regularly. Never replace the cable of the anti-static wrist strap with other cables.

z Prevent electrostatic-sensitive boards or modules from touching the object with static electricity or the object that may easily generate static electricity. For

(13)

example, when rubbing on an object of insulating materials such as packing and conveyer, an electrostatic-sensitive part takes electric charge. When touching a human body or connect to the ground, the discharge may damage the part.

z Electrostatic-sensitive boards or modules can only contact good conductors, such as anti-static packing bags. Pack the board with an anti-static bag for stock or transport.

z Before connecting any measurement device to boards or modules, ground it to discharge its static electricity.

z Do not place boards or modules near strong DC magnetic field, for example, the cathode ray tube of a scope. Keep the distance at 10 cm at least.

z The damage caused by static electricity is accumulative in effect. If the damage is slight, the part does not fail. However, as the damage occurs repeatedly, the part may suddenly fail. The electrostatic discharging damage on the part may be explicit or implicit. The implicit damage is not visible. However, it makes the part vulnerable to over-voltage and high-temperature.

Figure 1 shows how to wear an anti-static wrist strap.

Plug of anti-static wrist strap

Figure 1 Wearing an anti-static wrist strap

3.8 Labels on Power Supply Cables

Attention:

(14)

3.9 Leakage Current

Warning:

To avoid large leakage current, ground the equipment before powering it on.

Before connecting the AC input power supply, be sure to connect the protection-grounding terminal of the equipment housing with the earth. The purpose is to avoid the electric shock on human body resulting from leakage current. The leakage current is caused by the EMI filter earth capacitance of the equipment AC power supply input terminal and the Y capacitance of the primary power supply.

3.10 Flammable Air

Danger:

Do not place the equipment in an environment with flammable, explosive air or smog. Never operate any digital equipment in this environment.

It is extremely dangerous to operate any digital equipment in this environment.

4 Microwave and Magnetic Field

4.1 Introduction

Antennas in service generate electromagnetic radiation. Standing too close to the antenna is against the safety codes.

Only trained professional people can install and maintain antennas.

The radiation design of the equipment should meet the IEEE C95.1-1991 recommendation.

When working near a full-power transmitting antenna, keep the following safety regulations in mind.

(15)

4.2 Definitions of Environment

There are two kinds of environment under electromagnet radiation.

z Controlled environment

In such an area, people are aware of the potential danger of the radio frequency radiation.

z Uncontrolled environment

In such an area, people are not aware of the potential danger of the radio frequency radiation. They are not able to evade the radiation. The area may include living or working places.

4.3 Minimal Distance Formula

This section shows how to calculate the minimal safety distance.

Use the following formula to calculate the minimal safety distance from various antennas.

r

min

=

N1010 G-L （） P 4 W OUT

The elements in the formula include:

z Rmin is the minimal safety distance. Its unit is meter. z N is the number of frequency carriers.

z Pout is the output power of the frequency carrier. Its unit is W.

z L is the loss from transmitting party to the receiving party. Its unit is dB.

z G is the antenna gain. Its unit is dB.

z W is the greatest field power density permitted. Its unit is W/m2.

In the uncontrolled environment, the greatest field power density permitted is f/150, in which f is the frequency, whose unit is MHz. Its tested value is the mean value measured when the testing time is over 30 minutes.

In the controlled environment, the greatest filed power density permitted is f/30, and its tested value is the mean value measured when the testing time is over 6 minutes. Table 2 shows the minimal safety distance on the axial line of the antenna field calculated by the above formula.

Table 2 Typical minimal safety distance

Frequency f (MHz) 1800

(16)

Frequency f (MHz) 1800

Loss from the transmitting party to

the receiving party L (dBm) 5.5

Antenna gain G (dBm) 18

Number of frequency carriers N 2

Power density/uncontrolled environment W (W/m 2 ) 12 Power density/controlled environment W (W/m 2 ) 60

Uncontrolled environment rmin (m) 3.1

Controlled environment rmin (m) 1.4

4.4 Operation Codes

Warning:

When operating on the high intensity radio frequency signal equipment, mind that the high-intensity microwave is harmful to human health.

5 Laser

Warning:

The laser beam inside optical fibers may injure your eyes.

When installing and maintaining optical fibers, keep your eyes away from them and avoid looking at the optical fiber outlet.

(17)

6 High Temperature

Warning:

The temperature of some equipment parts may be rather high. Do not touch the surface freely risking scald.

When the equipment is running in the tropical environment, the temperature benchmark of the parts is 45ÿC. In that case:

z The temperature rise is within 30ÿC or namely the highest temperature is 75ÿC when the equipment is running normally.

z The temperature rise is within 55ÿC or namely the highest temperature is 100ÿC when a fault occurs.

The temperature for radiator of the transmitter RF power amplifier and the power supply radiator can reach above-mentioned high temperature.

7 Working High above the Ground

7.1 General Operation

Warning:

When working high above the ground, beware of falling objects.

Follow local regulations on working high above the ground:

z Have the workers trained.

z Take care of the machines and tools at hand and prevent them from falling.

z Put a tool back into the tool bag right after using it. z Put on a helmet and safety belt.

z Put on cold-proof clothes in cold areas beforehand.

z Check all the hoisting gears beforehand.

7.2 Safety Codes on Ladder Use

Check the ladder beforehand to make sure the ladder is safe for use. Overweight on the ladder is strictly prohibited.

(18)

You need have the ladder held or secured in the following cases:

z If the ladder slants over 5 m horizontally,

z if the two legs of it are over 3 m away, or

z if the environment is dangerous.

Be sure to spread A-shape ladders fully, as shown in Figure 2.

Figure 2 Spread A-shaped ladder

The slant of the ladder is 75ÿ at best.

Measure the slant with the Angle Square or with arms, as shown in Figure 3.

When using the ladder, place the wider end of the ladder against the ground or take protective measures on the base part of the ladder against skid.

Place the ladder against a stable and level ground. Never place a ladder on slippery objects such as cartons and stones.

Figure 3 Ladder slant

When climbing the ladder,

z Make sure that the gravity center of your body is within the ladder range.

z Keep both feet and at least one hand on the ladder.

(19)

To climb to a rooftop, the length of the ladder should be 1 meter higher than the eave, as shown in Figure 5.

Figure 4 Using the long ladder in a safe way

Figure 5 Ladder placement when the ladder is 1 meter higher than the eave

8 Other Items

8.1 Weight Hoisting

Warning:

Exclude access to the areas under the gib arm and the goods in suspension during weight hoisting.

Comply with the following regulations:

z Have weight-hoisting workers trained and qualified.

(20)

z Have weight-hoisting tools fixed securely onto a weight-bearing object or wall.

z Use concise commands to avoid misoperation.

z Make sure that the included angle of the cables for hoisting the cabinet is within 90ÿ to prevent the cable from breaking.

Figure 6 Weight hoisting

8.2 Heavy Object Portage

Warning:

When carrying the heavy object such as the cabinet, be prepared and mind not to be bruised by the heavy object.

To perform the following tasks, two or three persons need cooperate.

z Installing and maintaining BTS cabinets

z Slanting, tilting, and erecting the cabinet

When the cabinet center of gravity slants over 10ÿ, the cabinet may be off balance under gravity.

(21)

Figure 7 Laying or erecting a cabinet

8.3 Sharp Edge of Objects

Warning:

When handling equipment, wear protection gloves against sharp edges.

8.4 Binding of Signal Wires

Caution:

Bind signal wires separately at least 150 mm from the cables of strong current or high voltage.

8.5 Having Companions in Maintenance and Commissioning

Attention:

Have a qualified people who can give aids around when you maintain or commission the equipment interior.

(22)

Installation Manual – Hardware Installation

BBU3806 WCDMA Base Band Unit Table of Contents

3.1 About This Chapter ... 3-1 3.2 BBU3806 Site Requirements... 3-1 3.3 Power Supply Requirements ... 3-2 3.4 Lightning Protection and Grounding Requirements... 3-2 3.4.1 Lightning Protection Requirements for Equipment Room Construction ... 3-2 3.4.2 Lightning Protection Requirements for AC Power Supply System ... 3-2 3.4.3 Lightning Protection Requirements for Power Cables to Equipment Room ... 3-3 3.4.4 Grounding Requirements for DC Power Distribution ... 3-3 3.4.5 Equipotential Grounding Requirements ... 3-3 3.4.6 General Grounding Requirements ... 3-4 3.4.7 Grounding Impedance Requirements ... 3-4 3.4.8 Lightning Rod Requirements... 3-4 3.4.9 Feeder Cabling and Grounding Requirements ... 3-4 3.4.10 Signal Cable Lightning Protection Requirements ... 3-5 3.5 Equipment Room Requirements... 3-5 3.5.1 Floor Space Requirements ... 3-6 3.5.2 Height Requirements ... 3-6 3.5.3 Load Bearing Requirements ... 3-6 3.5.4 Floor Requirements... 3-6 3.5.5 Window and Door Requirements ... 3-7 3.5.6 Roof and Wall Requirements ... 3-7 3.5.7 Dust Density Requirements ... 3-7 3.5.8 Quakeproof Requirements ... 3-7 3.5.9 Lighting and Illumination Requirements ... 3-7 3.5.10 Fire Prevention Requirements ... 3-8 3.5.11 Environment Monitoring System Requirements... 3-8

Chapter 4 Installation Preparations... 4-1

(23)

Huawei Technologies Proprietary ii

4.2 Preparing Technical Documents... 4-1 4.3 Preparing Tools and Instruments... 4-1 4.4 Checking Installation Conditions... 4-3 4.4.1 Site Construction Requirements ... 4-3 4.4.2 Environment Requirements... 4-3 4.4.3 Load Bearing Requirements for Floor and Wall... 4-4 4.4.4 Power Supply Requirements for Equipment Room ... 4-4 4.4.5 Grounding Requirements ... 4-4 4.4.6 Auxiliary Devices Requirements ... 4-5 4.5 Unpacking and Inspecting Operations... 4-5 4.5.1 Unpacking Requirements... 4-5 4.5.2 Unpacking Wooden Case ... 4-6 4.5.3 Inspecting Items inside Carton... 4-7

Chapter 5 Installing BBU3806 ... 5-1

5.1 About This Chapter ... 5-1 5.2 Introduction to BBU3806... 5-1 5.2.1 BBU3806 Appearance ... 5-1 5.2.2 BBU3806 Weight and Dimensioning... 5-2 5.3 BBU3806 Installation Modes ... 5-2 5.4 Setting BBU3806 DIP Switch... 5-2 5.5 Installing BBU3806 to Standard 19-Inch Cabinet ... 5-3 5.5.1 Installation Space Requirements ... 5-3 5.5.2 BBU3806 Horizontally Mounted into Cabinet... 5-4 5.5.3 BBU3806 Vertically Mounted into Cabinet... 5-4 5.6 Mounting BBU3806 on Wall... 5-6 5.6.1 Installation Space Requirements ... 5-6 5.6.2 Installation Procedure ... 5-6

Chapter 6 Installing Cables ... 6-1

6.1 About This Chapter ... 6-1 6.2 Cables to Be Installed... 6-1 6.3 BBU3806 Ports ... 6-2 6.4 Installing Power Cable ... 6-3 6.4.1 Introduction to Power Cable... 6-3 6.4.2 Connecting Power Cable ... 6-4 6.4.3 Wiring Principles for Power Cable... 6-5 6.5 Installing E1/T1 Cable... 6-5 6.5.1 Introduction to E1/T1 Cable ... 6-5 6.5.2 Connecting E1/T1 Cable ... 6-7 6.5.3 Wiring Principles for E1/T1 Cable ... 6-7 6.6 Installing Fiber... 6-8 6.6.1 Introduction to Fiber ... 6-8

(24)

6.6.2 Wiring Principles for Fiber ... 6-8 6.6.3 Installing Optical Module ... 6-9 6.6.4 Connecting Fiber ... 6-9 6.6.5 Wiring Principles for Fiber ... 6-9 6.7 Installing High-Speed CPRI Signal Cable ... 6-9 6.7.1 Introduction to High-Speed CPRI Signal Cable ... 6-9 6.7.2 Connecting High-Speed CPRI Signal Cable... 6-10 6.7.3 Wiring Principles for High-Speed CPRI Signal Cable ... 6-10 6.8 Installing BBU Interconnect Cable ... 6-11 6.8.1 Introduction to BBU Interconnect Cable... 6-11 6.8.2 Connecting BBU Interconnect Cable ... 6-11 6.8.3 Wiring Principles for BBU Interconnect Cable ... 6-11 6.9 Installing GPS Clock Cable... 6-12 6.9.1 Introduction to GPS Clock Cable ... 6-12 6.9.2 Connecting GPS Clock Cable ... 6-12 6.9.3 Wiring Principles for GPS Clock Cable ... 6-12 6.10 Installing PGND Cable... 6-13 6.10.1 Introduction to PGND Cable... 6-13 6.10.2 Connecting PGNC Cable ... 6-13 6.11 Installing Ethernet Cable... 6-13 6.11.1 Introduction to Ethernet Cable ... 6-13 6.11.2 Connecting Ethernet Cable ... 6-14

Chapter 7 Checking Hardware Installation ... 7-1

7.1 About This Chapter ... 7-1 7.2 Checking BBU3806 Installation ... 7-1 7.3 Checking Cable Installation ... 7-2 7.3.1 Checking Signal Cable Installation... 7-2 7.3.2 Checking Installation of Power Cables and Grounding Cables ... 7-2 7.4 Power-on Check ... 7-3 7.5 Checking Equipment Room Sanitation ... 7-5

Appendix A Making OT Terminal of Power Cable...A-1

A.1 About This Appendix ...A-1 A.2 Work Flow...A-1 A.3 Procedure ...A-2 A.3.1 Cutting Cable ...A-2 A.3.2 Mounting Heat Shrink Tube ...A-2 A.3.3 Stripping...A-3 A.3.4 Crimping...A-3 A.3.5 Blowing Heat shrink Tube...A-5 A.3.6 Checking ...A-5 A.3.7 Labeling ...A-6

(25)

Huawei Technologies Proprietary iv

Appendix B Making Connector of Communication Cable ...B-1

B.1 About This Appendix ...B-1 B.2 Making RJ45 Connector...B-1 B.2.1 Parts Required ...B-1 B.2.2 Stripping and Cutting ...B-1 B.2.3 Wire Insertion and Assembly ...B-3 B.2.4 Crimping...B-5 B.2.5 Checking ...B-6 B.3 Making SMB-Type Connector ...B-6 B.3.1 Mounting the Heat Shrink Tube and Crimping Sleeve ...B-6 B.3.2 Stripping...B-7 B.3.3 Soldering Pins...B-7 B.3.4 Crimping External Conductor...B-8 B.3.5 Blowing Heat Shrink Tube ...B-9 B.3.6 Checking ...B-9

Appendix C Engineering Labels for Cables ...C-1

C.1 About This Appendix ...C-1 C.2 Introduction to Labels ...C-1 C.2.1 About Engineering Labels ...C-1 C.2.2 Material ...C-1 C.2.3 Type and Shape ...C-1 C.2.4 Printing Labels ...C-3 C.2.5 Writing Labels ...C-5 C.2.6 Affixing Labels ...C-6 C.2.7 Information Carried on Labels ...C-7 C.2.8 Points for Attention ...C-8 C.3 Engineering Labels for Optical Fibers ...C-8 C.3.1 Labels for the Fiber that Connects Two Devices...C-9 C.3.2 Labels for the Fiber that Connects the Device and the ODF ...C-10 C.4 Engineering Labels for Trunk Cables...C-11 C.4.1 Labels for the Trunk Cable that Connects Two Devices ...C-12 C.4.2 Labels for the Trunk Cable that Connects the Device and the DDF ...C-13 C.5 Engineering Labels for Power Cables...C-14 C.5.1 Labels for DC Power Cables ...C-14

Appendix D Cleaning Optical Fiber Connectors ...D-1

D.1 About This Appendix ...D-1 D.2 Cleaning Means ...D-1 D.2.1 Introduction ...D-1 D.2.2 Selection ...D-2 D.3 Cleaning Requirements...D-2 D.4 Precautions ...D-3

(26)

D.5 Cleaning Methods ...D-3 D.5.1 Cleaning End Face of Optical Fiber Connector...D-3 D.5.2 Cleaning Adapter (Flange) ...D-6 D.5.3 Cleaning Optical Fiber Interface on Optical Module...D-6 D.5.4 Cleaning Optical Attenuator...D-7

(27)

BBU3806 WCDMA Base Band Unit List of Figures

Huawei Technologies Proprietary vi

List of Figures

Figure 1-1 Distributed NodeB system architecture ... 1-1

Figure 1-2 BBU3806 hardware structure ... 1-2

Figure 2-1 BBU3806 installation procedure ... 2-1

Figure 3-1 Ground grid... 3-4

Figure 4-1 Unpack a carton ... 4-6

Figure 5-1 BBU3806 appearance (Unit: mm) ... 5-1

Figure 5-2 BBU3806 installation space requirements (Unit: mm)... 5-3

Figure 5-3 BBU3806 horizontally mounted into standard 19-inch cabinet ... 5-4

Figure 5-4 Mounting hangers to BBU3806 ... 5-5

Figure 5-5 BBU3806 vertically mounted into standard 19-inch cabinet... 5-5

Figure 5-6 Mounting positions of BBU3806 (Unit: mm) ... 5-7

Figure 5-7 Mounting BBU3806 on wall ... 5-8

Figure 6-1 BBU3806 ports ... 6-2

Figure 6-2 Outline of power cable... 6-4

Figure 6-3 Outline of E1/T1 cable (SMB female connectors have been installed) ... 6-6

Figure 6-4 Outline of LC connector... 6-8

Figure 6-5 Outline of high-speed CPRI signal cable... 6-9

Figure 6-6 Connecting SFP connector of high-speed CPRI signal cable to BBU3806 ... 6-10

Figure 6-7 Outline of BBU interconnect cable ... 6-11

Figure 6-8 Outline of GPS clock cable... 6-12

Figure 6-9 Outline of PGND cable ... 6-13

Figure 6-10 Outline of near-end Ethernet cable ... 6-14

Figure A-1 Work flow of making OT terminal of power cable ...A-1

Figure A-2 Cable cutting ...A-2

(28)

Figure A-4 Connecting core wires to the terminal crimping sleeve ...A-4

Figure A-5 Crimping molds for various power cables ...A-4

Figure A-6 Crimping method...A-5

Figure A-7 Usage of a heat shrink tube ...A-5

Figure B-1 Outline of a round communication cable ...B-2

Figure B-2 Outline of a flat telephone cable ...B-2

Figure B-3 Outline of a shielded cable...B-2

Figure B-4 Outline of neatly-cut core wires ...B-3

Figure B-5 Outline of a RJ45 connector ...B-4

Figure B-6 A crimped RJ45 connector ...B-5

Figure B-7 Mounting the heat shrink tube and crimping sleeve ...B-6

Figure B-8 Stripping a cable (unit: mm) ...B-7

Figure B-9 Soldering Pins ...B-7

Figure B-10 Crimping an SMB connector onto a coaxial cable...B-8

Figure B-11 Blowing the heat shrink tube to shrink It ...B-9

Figure C-1 The label for the signal cable ... C-2

Figure C-2 Label for power cables... C-3

Figure C-3 Warning prompt before printing ... C-4

Figure C-4 Writing direction of the label... C-6

Figure C-5 Affixing a label to a signal cable... C-6

Figure C-6 Appearance of affixed labels on power cables ... C-7

Figure C-7 Printed parts on the label for signal cables... C-8

Figure C-8 Example of the label on the optical fiber between two devices ... C-10

Figure C-9 Example of the label on the optical fiber between the device and the ODF...C-11

Figure C-10 Example of the label on the trunk cable between two devices ... C-12

Figure C-11 Example of the label on the trunk cable between the device and the DDF .... C-14

Figure C-12 Example of the labels on the DC power cable... C-15

(29)

Huawei Technologies Proprietary viii

Figure D-2 Dust-free pick (2) ... D-2

Figure D-3 Cleaning with dust-free cloth on table... D-4

Figure D-4 Cleaning with dust-free cloth on hand ... D-4

Figure D-5 Opening the dust-proof cover ... D-5

Figure D-6 Cleaning with wiping box (1) ... D-5

(30)

BBU3806 WCDMA Base Band Unit List of Tables

List of Tables

Table 1-1 BBU3806 hardware description... 1-2

Table 2-1 BBU3806 installation instructions... 2-1

Table 3-1 Dust density requirements inside equipment room ... 3-7

Table 3-2 Major functions of environment monitoring system... 3-8

Table 4-1 Technical documents for reference ... 4-1

Table 4-2 List of tools and instruments... 4-2

Table 5-1 BBU3806 weight and dimensions ... 5-2

Table 5-2 BBU3806 DIP switch ... 5-2

Table 6-1 Cables to be installed on site ... 6-1

Table 6-2 BBU3806 ports ... 6-3

Table 6-3 Relation between 7W2 connector pins and core wires of power cable... 6-4

Table 6-4 Connections of power cable ... 6-4

Table 6-5 Relation between SMB connector and core wires of E1/T1 cable ... 6-6

Table 6-6 Connections of high-speed CPRI signal cable... 6-10

Table 6-7 Connections of BBU interconnect cable... 6-11

Table 6-8 Connections of GPS clock cable ... 6-12

Table 6-9 Connections of PGND cable ... 6-13

Table 6-10 Connections of Ethernet cable ... 6-14

Table 7-1 Check items for BBU3806 installation ... 7-1

Table 7-2 Check items for signal cables installation... 7-2

Table 7-3 Check items for power cable and grounding cable installation ... 7-2

Table 7-4 Indicators on BBU3806 panel... 7-4

Table 7-5 Check items for equipment room sanitation ... 7-5

Table C-1 Standard typeface for handwriting ... C-5

(31)

BBU3806 WCDMA Base Band Unit List of Tables

Huawei Technologies Proprietary x

Table C-3 Information on labels affixed to the fiber between the device and the ODF... C-10

Table C-4 Information on labels affixed to the trunk cable between two devices ... C-12

Table 5 Information on labels affixed to the trunk cable between the device and the DDF

C-13

Table C-6 Information on labels affixed to the DC power cables ... C-14

(32)

BBU3806 WCDMA Base Band Unit Chapter 1 BBU3806 Hardware Structure

Chapter 1 BBU3806 Hardware Structure

1.1 About This Chapter

This chapter describes the hardware structure of BBU3806 as follows:

z Hardware Structure

z Equipment Description

1.2 Hardware Structure

As shown in Figure 1-1, the distributed NodeB system consists of:

z BBU3806

z RRU3801C

z Antenna and feeder system

Power cable

Trunk cable

Fiber or CPRI high-speed signal cable RF jumper Antenna Feefer RF jumper A & F system TMA RRU 3801C BBU3806BBU3806 Protection grounding cable RNC +24V/-48V DC power

Figure 1-1 Distributed NodeB system architecture

Figure 1-2 shows the hardware structure of BBU3806. Complying with the IEC 297 standard, the dimensions of the cassette-shaped BBU3806 are 42 mm (H) × 430 mm (W) × 300 mm (D).

(33)

Huawei Technologies Proprietary 1-2

Figure 1-2 BBU3806 hardware structure

1.3 Equipment Description

Table 1-1 describes the equipment shown in Figure 1-1.

Table 1-1 BBU3806 hardware description

Equipment Composition & configuration

Installation instruction

Antenna & feeder system

Includes NodeB antenna & feeder system and GPS antenna & feeder system; The former is mandatory. The latter is optional.

See WCDMA NodeB Installation

Manual.

Auxiliary facilities

Indoor facilities, such as DDF, GPS receiver, environment monitoring instrument (EMI) and other monitoring devices; They are optional, depending on site configurations.

This manual only describes the GPS receiver and EMI regarding their installation requirements and cabling to BBU3806. For detailed installation instructions, refer to manuals delivered with the related facilities.

For details about how to install DDF and connect cables to DDF, refer to the manual delivered with DDF.

RRU3801C

- - For detailed installation

instructions, see RRU3801C

WCDMA Radio Remote Unit Installation Manual – Cabinet Installation.

BBU3806 - - This manual describes how to _{install BBU3806.} Cables Includes power cable, This manual describes how to route

(34)

Equipment Composition & configuration

Installation instruction

E1/T1 cable, inter-BBU cable, GPS clock cable, protection grounding cable, and near-end Ethernet cable

(35)

BBU3806 WCDMA Base Band Unit Chapter 2 BBU3806 Installation Procedure

Chapter 2 BBU3806 Installation Procedure

2.1 About This Chapter

This chapter describes the installation procedure of BBU3806.

2.2 BBU3806 Installation Procedure

Figure 2-1 shows the installation procedure of BBU3806.

Start Installing BBU3806 Routing cables End Installatin check Installation preparations

Figure 2-1 BBU3806 installation procedure

Table 2-1 lists the BBU3806 installation instructions.

Table 2-1 BBU3806 installation instructions

Step Reference Remark

Installation preparations

Chapter 4 Installation Preparations

Prepares tools, instruments and technical documents before installing BBU3806

Unpacking and inspecting instructions Onsite preparations

Installing BBU3806 Chapter 5 Installing BBU3806

(36)

BBU3806 WCDMA Base Band Unit Chapter 2 BBU3806 Installation Procedure

Step Reference Remark

Installing cables Chapter 6 Installing Cables

Routes power cable, E1/T1 cable, inter-BBU cable, GPS clock cable, protection grounding cable, and near-end Ethernet cable

Onsite installation Installation check Chapter 7

Installation Check

Checks the overall installation of BBU3806 in terms of cabinet, cables and the equipment room sanitation Power-on check on BBU3806 cabinet and boards

(37)

Installation Manual – Hardware Installation BBU3806 WCDMA Base Band Unit

Chapter 3 BBU3806 Operating Environment Requirements

Chapter 3 BBU3806 Operating Environment

Requirements

3.1 About This Chapter

This chapter describes the operating environment requirements of BBU3806 as follows:

z BBU3806 Site Requirements z Power Supply Requirements

z Lightning Protection and Grounding Requirements z Equipment Room Requirements

3.2 BBU3806 Site Requirements

To ensure the long-term and stable operation of NodeB equipment, you have to select a proper site for the equipment room by taking the following aspects into full consideration: z Network planning z Technical specifications z Hydrology z Geology z Transportation

Specifically, you must keep the equipment room away from the following places:

z Places with high temperature, low pressure, dense dust, poisonous gases,

flammable objects, or explosives

z Places with violent shakes and intense noise z Electric substation

z Low lying land subject to soak z Places where fungi grow easily

z Places where rodents such as rats haunt

z With the dimensioning of 42 mm (H), 430 mm (W), and 300 m (D), BBU3806 is

no heavier than 3 kg. It is necessary for the installation site to bear the weight of BBU3806 and have enough space for future operations and maintenance.

(38)

3.3 Power Supply Requirements

BBU3806 operates either at –48 V DC or at +24 V DC. It has to meet the following requirements:

z When operating at –48 V DC, the working voltage of BBU3806 must be within –

40 V DC to –60 V DC.

z When operating at +24 V DC, the working voltage of BBU3806 must be within 19

V DC to 29 V DC.

z The DC power distribution box or DC power cables have to be installed in

position.

z The through current of RRU upper-level protective parts must be greater than 5

A.

3.4 Lightning Protection and Grounding Requirements

3.4.1 Lightning Protection Requirements for Equipment Room Construction

To ensure sound lighting protection of the equipment room where BBU3806 is seated, you shall:

z Construct the equipment room with reinforced concrete

z Equip the equipment room with facilities to protect the room from lightning surge z Connect the lightning protection (such as lightning rod) ground of the equipment

room building shares a grounding conductor with that of the equipment room.

3.4.2 Lightning Protection Requirements for AC Power Supply System

To ensure sound lightning protection of the AC power supply system, you shall:

z Use TN-S AC power supply system

z Equip a NodeB with a dedicated power transformer. Sheath power cables with

metal or insulation materials and lead the cables to NodeB through a steel pipe. Securely ground and bury both ends of the sheaths and pipes no shorter than 15 m underground.

z Add a seamless zinc oxide lightning arrester to the lower voltage side of the

NodeB AC power transformer. Ground the transformer shell, AC zero line of the lower voltage side, and metal sheath of power cables connected to the transformer shell.

(39)

3.4.3 Lightning Protection Requirements for Power Cables to Equipment

Room

To ensure sound lightning protection of the power cables led into the equipment room, you shall:

z Install lightning arresters on the power cables.

z Not lead aerial AC or DC power cables into or out of communications offices or

sites.

z Lead low-voltage power cables into the AC rectifier and AC power distribution

box in the equipment room. Add a lightning arrester operating at over 20 kA AC to the power cables. Ground the lightning arrester.

z For sites in cities, the nominal discharge current of the lightning arrester shall be

over 20 kA.

z For sites in suburbs or areas with moderate annual thunderstorm days, the

through-current capacity of the lightning arrester shall be over 40 kA.

z For sites in mountains, areas where thunderstorms days are quite often, or

solitary high buildings in cities, the maximum through-current capacity of the lightning arrester shall be over 100 kA.

z The grounding cable of its lightning arrester must be shorter than 1 m.

3.4.4 Grounding Requirements for DC Power Distribution

The NodeB DC working ground (48V DC anode or 24V DC cathode) connects to the nearest point on the indoor grounding bar. The grounding cable must satisfy the maximum load of equipment.

3.4.5 Equipotential Grounding Requirements

Equipotential grounding has to meet the following requirements:

z Make protection ground for all communications devices and supporting facilities

such as NodeB, transmission devices, and power supply unit.

z The protection ground of all devices in the site must connect to the same

grounding bar. The protection ground of all devices in the equipment room must connect to the grounding bar of the equipment room.

z The working ground and protection ground of all communications devices in the

site must jointly connect to the same ground grid.

z There are three ground grids for NodeB equipment room, the tower, and the

transformer. Multi-point underground connections shall be made among the three ground grids. If the tower is on the rooftop of the equipment room and the power transformer is in the equipment room, the other two ground grids can share the ground grid of NodeB equipment room, as shown in Figure 3-1.

(40)

Tower ground grid Equipment room ground grid Transformer ground grid Horizontal

grounding body grounding bodyVertical

Figure 3-1 Ground grid

z Ground the cabling rack, suspend iron rack, NodeB rack or frame, metal air duct,

and metal doors and windows in the equipment room.

3.4.6 General Grounding Requirements

To meet general grounding requirements, you shall:

z Never connect the neutral line of AC power cable to the protection ground of any

exchange or communications devices.

z Make all ground cables as short and straight as possible. z Never add fuse or switch to ground cables.

z Make sure that there is no oxidation on the grounding bar against large contact

impedance between ground cables and grounding bar.

z Ensure that ground cables connect to the protection grounding bar of the

equipment room securely.

3.4.7 Grounding Impedance Requirements

The grounding impedance of NodeB cannot exceed 5 ohm. For places with less than 20 thunderstorm days in a year, the grounding impedance of NodeB can be lower than 10 ohm.

3.4.8 Lightning Rod Requirements

Make sure that all NodeB antennas stay under effective protection of the lightning rod. The lightning rod must have a dedicated line for lightning current lead. The lightning rod shall be made of 40 mm × 4 mm galvanized flat steel.

3.4.9 Feeder Cabling and Grounding Requirements

(41)

z Lead feeders into the equipment room through a cabling rack or underground

burial.

z Install grounding clips to feeders at the following points: z Less than 1m off the platform on the tower

z Less than 1m from the outdoor cabling rack to the tower body z Outside the feeder window

z One clip every 20 m on feeders along the tower. Use at most three clips

even if the tower is over 60 m high.

z One clip every 20 m on feeders on rooftop

z After leading a feeder into the equipment room, add a coaxial lightning arrester

with nominal discharge current no less than 5 kA to the feeder. The ground lead of the grounding terminal of the lightning arrester must connect to the grounding line, lightning protection band or ground grid outside the feeder inlet. The feeder lightning arrester must match the communications equipment in terms of impedance, attenuation, and working band.

z Ground both ends of the cabling rack securely.

3.4.10 Signal Cable Lightning Protection Requirements

To ensure sound lighting protection for signal cables, you shall:

z Lead underground signal cables rather than aerial signal cables to the NodeB

site.

z Lead metal-sheathed signal cables into or out of the site or pull them through

metal pipes.

z If underground signal cables cannot be led into the site, lead them through metal

tubes. Ground both ends of the tubes securely. Install a large through-current capacity lightning arrester to the point where the cables are led into the site. Make the ground cable of the lightning arrester as short as possible. Ground the idle lines in the cable.

3.5 Equipment Room Requirements

The equipment room hosting BBU3806 must meet the following requirements:

z Floor space z Height z Load bearing z Floor

z Doors and windows z Roof and wall z Dust density z Quake prevention z Lighting and illumination

(42)

z Fire prevention

z Environment monitoring system

3.5.1 Floor Space Requirements

The equipment room floor space must meet the needs of:

z Future capacity expansion

z Feeder window installation and feeder routing inside the equipment room z Easy installation and maintenance

z Opening and closing of cabinet doors

3.5.2 Height Requirements

The desired height of the equipment room, that is, the distance from the beam or the ventilation pipe to the floor, shall be no less than 3 m. This makes it easy to install the cabling rack and route cables and feeder pipes.

3.5.3 Load Bearing Requirements

The load bearing capability of the equipment room depends on:

z Equipment weight z Equipment floor space z Selected installation position z Equipment room structure

Ask an architectural engineer to verify the bearing capacity of the equipment room. If the capacity fails to satisfy the need, reinforce the building.

3.5.4 Floor Requirements

An antistatic floor inside the equipment room must meet the following needs:

z The resistance of an antistatic raised floor must comply with the specifications for

those in computer equipment rooms.

z The floor is firm and tight, with a horizontal error no greater than 2 mm.

z If antistatic raised floor is not available, you can use a static-conductive floor with

volume resistivity from 1.0 × 107_{to 1.0 × 10}10 _Ω.

z Be sure to connect the floor to the grounding device through a current-limiting

resistor and connecting cables. The resistance of the resistor shall be 1 MΩ. Tests show that a terrazzo floor or cement floor can reach this standard.

z Be sure to cover all the cabling holes on the floor with cover plates. Make sure

(43)

3.5.5 Window and Door Requirements

The doors and windows of the equipment room must meet the following needs:

z The minimum dimensioning of doors is 2 m (height) × 1 m (width). z Be sure to seal doors and windows with anti-dust rubber strips.

z For windows exposed to sunshine, apply reflecting paper to the windowpane or

use colored glass. If the illumination inside the room permits, you may also block windows.

3.5.6 Roof and Wall Requirements

The roof and walls of the equipment room must meet the following needs:

z Make sure that the roof and walls are of enough endurance, heat insulation, and

leakage-proof capabilities.

z Waterproof the antenna mast and cabling holes on the roof. Make sure that the

roof is strong enough to bear the facilities.

z You may paint walls with lusterless lacquer, but never with the paint that easily

chalks.

3.5.7 Dust Density Requirements

Table 3-1 lists the dust density requirements in the equipment room.

Table 3-1 Dust density requirements inside equipment room

Max. diameter (µm) 1 3 5 10

Max. density of dust (No. of particles/m3)

≤ 4 × 107 ≤ 7 × 105 ≤ 2.4 × 105 ≤ 1.3 × 105

3.5.8 Quakeproof Requirements

The required quakeproof intensity of the equipment room shall be one degree above the local standard.

Make sure that the equipment room meets the standard. If necessary, strengthen the building where the room is located.

3.5.9 Lighting and Illumination Requirements

(44)

z Avoid direct sunshine on the equipment room to prevent circuit boards and other

elements from aging and deforming.

z Install gentle and anti-explosion lamps in the battery compartment.

z For unattended NodeBs, use common illumination provided by the mains supply

for the equipment room.

z For large-capacity or crucial NodeBs, prepare an emergency lighting system with

DC power supply as standby illumination.

3.5.10 Fire Prevention Requirements

For fire protection purposes, comply with the following standards and practices:

z The equipment room is at least 6 or 7 meters from any other construction. z Keep flammable and explosive materials away from the equipment room.

z Fire-extinction facilities are available on the construction site. Smoke and

temperature sensors, if any, are functional. .

z Mark sockets at different voltages with distinct labels.

z Install safety covers on the reserved mounting holes in the floor.

You can prepare auto extinguishers to control or put out fire in case of an emergency. Besides, prepare portable extinguishers along the aisle outside the equipment room. With the assumed fire lasting two hours, the water pool for fire extinction shall be large enough to hold water for extinguishing fire both outside and inside the room. Place fire hydrants in the aisle or near the staircase where they are distinct and easily accessible. Do not place them inside the equipment room.

3.5.11 Environment Monitoring System Requirements

The environment monitoring system consists of:

z Timing control

z Temperature monitoring z Theft alarm

z Smoke alarm

z Standby power supply

Table 3-2 lists the major functions of the system.

Table 3-2 Major functions of environment monitoring system

Item Function

Timing control The system controls the working of two air conditioners by a timing converter. The controlled air conditioners can take turns in working. This may save energy and prolong the service life of air conditioners.

(45)

Item Function

Temperature

monitoring The system monitors the environment temperature in real time. If the temperature exceeds the preset limits, the system will report alarm signals and turn on both air conditioners.

Theft alarm The system can monitor any possible theft in the

equipment room in real time. It is advisable to use a dual-mode detector either infrared or microwave.

Smoke alarm The system monitors smoke and fire inside the equipment room in real time.

Control over the power supply and standby power supply

z Automatic charge: When the battery monitoring circuit

detects that the battery runs low, the system charges the battery automatically.

z Charge protection: When the power supply is

abnormal or the charging current is too large, the system protects the battery.

z Discharge protection: The system cuts off battery load

when the battery voltage decreases to an extent that might harm the service life of the battery.

Upon mains failure, NodeB switches to battery for power supply. When mains supply recovers, it can switch back to mains for power supply and charge the battery to fill the released electric energy.

(46)

BBU3806 WCDMA Base Band Unit Chapter 4 Installation Preparations

Chapter 4 Installation Preparations

4.1 About This Chapter

This chapter describes the preparations before installing BBU3806 as follows:

z Preparing Technical Documents

z Preparing Tools and Instruments

z Checking Installation Conditions

z Unpacking and Inspecting Operations

4.2 Preparing Technical Documents

Table 4-1 shows the technical documents for reference during the installation.

Table 4-1 Technical documents for reference

For Refer to…

WCDMA Radio Access Network System Network Planning

WCDMA Radio Access Network System Engineering Design

BBU3806 NodeB Detail Drawings of Equipment Room and Relevant Environment

Engineering design

Engineering Design and Construction Drawings

Engineering installation BBU3806 WCDMA NodeB Installation Manual

Note:

The above documents, which are not inclusive, are only for your reference.

4.3 Preparing Tools and Instruments

(47)

Table 4-2 List of tools and instruments

Measurin g and marking

tools

A 5 m measuring tape A400 mm level bar Marking pen

Concrete drilling

tools

A percussion drill Some matching bits A cleaner

A terminal block (with three 2-phase sockets and three 3-phase sockets with current capacity > 15 A)

Fastening tools

Three Phillips screwdrivers (respectively of 4', 6' and 8') Three straight screwdrivers (respectively of 4', 6' and 8') Four adjustable wrenches (respectively of 6', 8', 10' and 12')

Combination wrenches (respectively of 17' and 19') A set of inner hexagon spanners

A set of socket wrenches A 5 kg nail hammer

Small tools

A tap wrench (with some M4 and M5 screw taps) A pair of sharp nose pliers (8')

A pair of diagonal pliers (8') A pair of slip joint pliers (8') A pair of pincer pliers (8')

A set of medium-sized broach files Electrician’s knife

Medium-sized flat Phillips screwdriver

Univers al tools

Auxiliary means

A pair of tweezers, a paintbrush, a pair of scissors, a 300 W soldering iron, a 40 W soldering iron, some tin wires, a heat blower, a solder absorber, a pair of hydraulic pliers (or Hercules crimping pliers), ladder, wire nipper, paper knife, insulating tape

(48)

Special tools A non-conductive screwdriver An antistatic wrist strap A safety knife

A stripper for 75 Ω coaxial cables

A pair of connector crimping pliers for 75 Ω coaxial cables A pair of multi-purpose crimping pliers

A pair of crimping pliers for network cables

Instruments A multi meter A power meter Portable computer

4.4 Checking Installation Conditions

In conformance with Engineering Technical Specifications and Lightning Protection and Grounding Specifications for Communications Equipment, the project supervisor shall:

z Check the construction conditions

z Fill out the Installation Environment Checklist

z Sign the Kickoff Agreement with the customer if all conditions are ready

z Formulate the Project Installation Plan.

If the installation preparations of the customer are not ready as required, fill out the

Onsite Work Liaison Form and give the reason for delayed kickoff.

If the customer needs immediate kickoff, ask the customer to specify and promise the exact time when the installation is ready for kickoff. For the project that is unable to be improved or that does not meet the specified requirements, a memo has to be signed.

4.4.1 Site Construction Requirements

Check the installation site with respect to its floor space, height, load bearing capacity, and groove layout. If the site cannot satisfy these requirements, the customer has to reconstruct the site as required.

4.4.2 Environment Requirements

(49)

z The lighting facilities inside the equipment room shall meet the requirements for equipment maintenance.

z Routine lighting, safety lighting, and emergency lighting shall be all functional.

z Water supply and drainage systems are satisfactory and compliant with specifications for fire protection.

z The air conditioning and ventilation system can ensure sound temperature and humidity inside the equipment room.

z Effective antistatic measures are taken.

z Necessary fire facilities are prepared inside the equipment room.

z The equipment room is designed to endure specified earthquake amplitudes.

z Reliable lightning protection measures are taken for the equipment room.

4.4.3 Load Bearing Requirements for Floor and Wall

When installing the equipment inside a building, you shall invite an architectural engineer to check the load bearing capacity of the building from the following aspects:

z Equipment weight

z Equipment floor space

z Selected installation position

z Equipment room structure

Ask a construction engineer to verify the bearing capacity of the equipment room. If the capacity fails to satisfy the need, reinforce the building.

z Weight of the equipment

z Floor space of the equipment

z Location to install the equipment

z Structure of the building

Ask an architectural engineer to verify the bearing capacity of the equipment room. If the capacity fails to satisfy the need, reinforce the building.

4.4.4 Power Supply Requirements for Equipment Room

For more details about the power supply requirements for the equipment room, refer to section 3.3 “Power Supply Requirements”.

4.4.5 Grounding Requirements

Satisfactory grounding is the basic requirement for stable operation of the equipment. It is also the primary precaution of the access network against lightning surge or interference. Carefully check the grounding aspect of the installation site and ensure satisfactory grounding according to actual requirements. For more details, refer to section 3.4 “Lightning Protection and Grounding Requirements”.

(50)

4.4.6 Auxiliary Devices Requirements

The auxiliary devices in this section refer to those that shall be ready for use before NodeB installation, including:

z Cabling rack

z Transmission cables from the peer end

z Transmission devices at the peer end

If there are devices that cannot meet the requirements, it is advisable for the customer to make improvements or reinstall the devices as required.

4.5 Unpacking and Inspecting Operations

4.5.1 Unpacking Requirements

Caution:

z To protect the equipment and find the cause, store the unpacked equipment inside the equipment room.

z Take photos of the storage environment, the rusted or corroded devices, and the

packaging cases and materials. Document the photos.

z Take good care of the unpacked packaging cases and materials.

After the project begins, the project supervisor and the customer shall check the products from the following aspects:

z The total number of products conforms to that in the packing list attached to the packing case.

z The arrival place agrees with the installation site.

z The packing case is in good condition.

z The cabinet is not placed upside down. Stop unpacking and find the cause, if:

z The outer package is damaged or soaked.

z The equipment is soaked and becomes rusty.

(51)

Warning:

When transporting and moving the equipment, components or parts,

z Avoid possible collision with doors, walls, or shelves.

z Never touch the uncoated surface of equipment, parts, or components with sweat soaked or dirty gloves.

4.5.2 Unpacking Wooden Case

Cartons are usually used to pack BBU3806s or terminal devices.

Warning:

z When cutting the tape with a paper knife, you shall not cut it deep. Otherwise, the items inside the carton might be damaged.

z After taking out all the items, keep the carton and antistatic packaging plastic bags for future use. For example, you may keep the standby parts or return the faulty parts for repair with the bags and cartons.

Unpack a carton by following the steps as illustrated in Figure 4-1.

(a) (b)

Figure 4-1 Unpack a carton

1) Check the types and quantity of boards inside the carton according to labels. 2) Cut the tapes along the seams of the carton cover using a knife as illustrated in

(a) part of Figure 4-1.

(52)

BBU3806 WCDMA Base Band Unit Chapter 4 Installation Preparations 4) The unpacking is complete.

4.5.3 Inspecting Items inside Carton

After unpacking the carton, check the items inside the carton from the following aspects:

z The packing interior is not damaged.

z The number and types of the items such as boards conforms to that in the packing list.

z There is no damage to connectors or ports.

z Computer terminals such as display, keyboard, and mouse are complete and not