Huawei BBU3806 User manual

Huawei Technologies Proprietary
HUAWEI
BBU3806 WCDMA Base Band Unit
Installation Manual – Hardware Installation
V100R005

Huawei Technologies Proprietary
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
Email: [email protected]

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Copyright © 2005 Huawei Technologies Co., Ltd.
All Rights Reserved
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 ofthe contents, but
all statements, information, and recommendations in this manual do not constitute
the warranty of any kind, express or implied.

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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
T2-030487-20050530-C-1.50 Initial field trial release

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
fiber connector.

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Intended Audience
The manual is intended for the following readers:
zInstallation personnel & technicians
zTelecom 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.

Installation Manual - Hardware Installation
BBU3806 WCDMA Base Band Unit Safety Precautions
Huawei Technologies Proprietary
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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:
zBe familiar with basic knowledge of safe operation
zUndergo relevant training
zGet 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:
zuniversal safety regulations
zsafety codes on design, production and equipment use
The people to install and maintain Huawei products need:
zUndergo strict training
zMaster the correct operation methods
zKeep 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.
Safety prompts fall into four levels: Danger, Warning,Attention, and Caution.

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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
Microwave symbol: indicates powerful electromagnetic field

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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.
zThe 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.
zPlace these parts in a safe place to prevent beryllium oxide leakage from
mechanical damages.
zDo 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.

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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.
zFollow 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.
zRemove electrical conductors such as watch, bracelets, and rings before
operation.
zWhen detecting that the cabinet is wet, switch off power supply at once.
zKeep the equipment dry in humid places.
Warning:
Improper high-voltage operations may result in fire and electric shocks. Follow local
codes to layAC cables. Have high-voltage operators trained and qualified.

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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.
zBe sure to turn off power before installing and removing power cables.
zBefore connecting cables, make sure that the cables and cable tags are correct.
3.3 Fuse
Caution:
Never install or remove electrified fuses.
zOnly technicians qualified for high-voltage operations can install or remove
fuses.
zBe 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.
zWear insulated gloves and move away the cables inside the cabinet.

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zProtect your eyes from flying metal filings.
zPrevent metal filings from falling into the cabinet.
zDrill at proper places to avoid affecting the electromagnetic shielding
performance of the cabinet.
zAfter 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).
zIn 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.
zBefore 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.
zBefore touching any board or module, discharge the static electricity in your body
by wearing an anti-static wrist strap.
zAdd 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.
zPrevent electrostatic-sensitive boards or modules from touching the object with
static electricity or the object that may easily generate static electricity. For

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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.
zElectrostatic-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.
zBefore connecting any measurement device to boards or modules, ground it to
discharge its static electricity.
zDo 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.
zThe 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:
Before connecting the cables, check the labels on them.

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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.

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4.2 Definitions of Environment
There are two kinds of environment under electromagnet radiation.
zControlled environment
In such an area, people are aware of the potential danger of the radio frequency
radiation.
zUncontrolled 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.
rmin =N1010
G-L（）
P
4 W OUT
The elements in the formula include:
zRmin is the minimal safety distance. Its unit is meter.
zN is the number of frequency carriers.
zPout is the output power of the frequency carrier. Its unit is W.
zL is the loss from transmitting party to the receiving party. Its unit is dB.
zG is the antenna gain. Its unit is dB.
zW 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
Frequency output power Pout (W) 40

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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/m2) 12
Power density/controlled
environment W (W/m2) 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.

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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:
zThe temperature rise is within 30ÿC or namely the highest temperature is 75ÿC
when the equipment is running normally.
zThe 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:
zHave the workers trained.
zTake care of the machines and tools at hand and prevent them from falling.
zPut a tool back into the tool bag right after using it.
zPut on a helmet and safety belt.
zPut on cold-proof clothes in cold areas beforehand.
zCheck 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.

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You need have the ladder held or secured in the following cases:
zIf the ladder slants over 5 m horizontally,
zif the two legs of it are over 3 m away, or
zif 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 75ÿat 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,
zMake sure that the gravity center of your body is within the ladder range.
zKeep both feet and at least one hand on the ladder.
zDo not climb beyond highest forth step.

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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:
zHave weight-hoisting workers trained and qualified.
zCheck that weight-hoisting tools are functional and complete.

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zHave weight-hoisting tools fixed securely onto a weight-bearing object or wall.
zUse concise commands to avoid misoperation.
zMake sure that the included angle of the cables for hoisting the cabinet is within
90ÿto 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.
zInstalling and maintaining BTS cabinets
zSlanting, tilting, and erecting the cabinet
When the cabinet center of gravity slants over 10ÿ, the cabinet may be off balance
under gravity.
Figure 7 shows how to lay or erect a cabinet.