Installation Manual-Antenna & Feeder System Installation

Chapter 1 Installation Preparations 1-1...............................................................

1.1 Personnel Requirements 1-1........................................................................1.2 Preparation Tasks for Different Installation Roles 1-2..................................1.3 Tools & Instruments Preparation 1-2............................................................1.4 Testing Antenna & Feeder Equipment 1-3...................................................

1.4.1 Testing antenna 1-3.............................................................................1.4.2 Testing TTA 1-4...................................................................................

1.5 Adding Feeder Connector 1-4......................................................................1.6 Assembling Antenna 1-6..............................................................................

Chapter 2 Installing NodeB Antenna & Feeder System 2-1...............................

2.1 Overview 2-1................................................................................................2.1.1 Structure of Antenna & Feeder System 2-1.........................................2.1.2 Procedure of Installing Antenna & Feeder System 2-5........................

2.2 Installing Outdoor Grounding Bar 2-6...........................................................2.3 Installing Antenna Support 2-8.....................................................................

2.3.1 Installing Antenna Support on Tower 2-8.............................................2.3.2 Installing Antenna Support on Roof 2-11...............................................

2.4 Installing Antennas on Tower Platform 2-17...................................................2.4.1 Hoisting Antennas and Other Articles 2-17............................................2.4.2 Installing Omnidirectional Antenna 2-18................................................2.4.3 Installing Directional Antenna 2-21........................................................

2.5 Installing Antennas on Roof 2-27...................................................................2.5.1 Carrying (Hoisting) Antennas and Other Articles 2-27...........................2.5.2 Installing Omnidirectional Antenna 2-27................................................2.5.3 Installing Directional Antenna 2-30........................................................

2.6 Installing Tower-top Amplifier 2-34.................................................................2.6.1 General 2-34..........................................................................................2.6.2 Installing TTA 2-36.................................................................................2.6.3 Installing Jumpers of TTA 2-38..............................................................

2.7 Installing Feeder Window 2-39.......................................................................2.7.1 Structure 2-40........................................................................................2.7.2 Installing Feeder Window 2-40...............................................................

2.8 Installing Feeders 2-42...................................................................................2.8.1 Cutting Feeders and Attaching Temporary Labels 2-43........................2.8.2 Hoisting and Fixing Feeders 2-44..........................................................2.8.3 Connecting Jumpers Between the Antenna and the Feeder 2-47.........2.8.4 Connecting the Jumpers Between TTA and the Feeder (if TTAAvailable) 2-48................................................................................................2.8.5 Laying and Fixing Feeders 2-49.............................................................2.8.6 Grounding Feeders 2-54........................................................................

2.8.7 Leading Feeders into Equipment Room 2-60........................................2.8.8 Installing Lightning Arresters for Feeders 2-63......................................2.8.9 Installing Indoor Jumpers 2-65...............................................................

2.9 Testing Antenna & Feeder System 2-71........................................................2.10 Waterproof Treatment for Connectors and Feeder Window 2-71................

2.10.1 Waterproof Treatment for Outdoor Connectors 2-71...........................2.10.2 Waterproof Treatment for Feeder Window 2-74..................................

Chapter 3 Installing GPS Antenna & Feeder System 3-1...................................

3.1 Overview 3-1................................................................................................3.1.1 Installation Procedure 3-1....................................................................3.1.2 Requirements for Antenna Installation Location 3-2............................

3.2 Installing Antenna Stand 3-3........................................................................3.2.1 Installation Mode and Requirements for Antenna Stand 3-3...............3.2.2 Installing Antenna Stand on Iron Tower 3-4.........................................3.2.3 Installing Antenna Stand on Roof 3-6..................................................

3.3 Installing GPS Antenna 3-8..........................................................................3.4 Installing Lightning Arrester and Feeder 3-9................................................

3.4.1 Installing Lightning Arrester 3-9...........................................................3.4.2 Binding Jumpers 3-11............................................................................3.4.3 Laying out Feeders 3-11........................................................................3.4.4 Grounding Feeder 3-12..........................................................................3.4.5 Feeder Test 3-12....................................................................................

Chapter 4 Checking Installation 4-1.....................................................................

4.1 Checking Antenna & Feeder System of NodeB 4-1.....................................4.2 Checking Antenna & Feeder System of GPS 4-4.........................................

Appendix A Interval Requirements for Antenna Installation A-1.......................

A.1 Omni-directional Antenna A-1......................................................................A.2 Directional Antenna A-1................................................................................A.3 Sharing the Same Site with BTS of GSM or CDMA A-1...............................

A.3.1 Shareing the same site with BTS of GSM A-1.....................................A.3.2 Shareing the same site with BTS of CDMA A-2...................................

Appendix B Engineering Label of Antenna & Feeder System B-1.....................

B.1 Introduction B-1............................................................................................B.2 Label of Feeder B-1......................................................................................

B.2.1 Label of Outdoor Feeder B-1...............................................................B.2.2 Indoor Feeder Label B-3......................................................................

B.3 Label of Jumper B-4.....................................................................................

HUAWEI

WCDMA NodeB Installation Manual – Antenna & Feeder System Installation

V100R003

WCDMA NodeB

Installation Manual

Volume Antenna & Feeder System Installation

Manual Version T2-030426-20040220-C-1.30

Product Version V100R003

BOM 31041126

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]

Copyright © 2004 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&C08 iNET, 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.

About This Manual

Release Notes

The product version that corresponds to the manual is WCDMA NodeB V100R003.

Organization of the Manual

The manual describes the antenna and feeder system installation methods and procedure of WCDMA NodeB.

There are four chapters and two appendixes in the manual.

Chapter 1 Installation Preparations describes the preparations prior to the installation.

Chapter 2 Installing NodeB Antenna & Feeder System describes the installation methods and procedures of the antenna & feeder system of WCDMA NodeB.

Chapter 3 Installing GPS Antenna & Feeder System describes the installation methods and procedures of the antenna & feeder system of GPS.

Chapter 4 Checking Installation lists the checking items and requirements for the antenna and feeder systems of the NodeB and GPS.

Appendix A Interval Requirements for Antenna Installation describes the interval requirements for omni-directional antenna and directional antenna.

Appendix B Engineering Label of Antenna & Feeder System describes the types and binding specifications of the labels of feeders and jumpers.

Intended Readers

The manual is intended for the following readers:

Installation personnel & technicians Telecom management personnel & WCDMA mobile network engineers 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 - Antenna & Feeder System Installation WCDMA NodeB Table of Contents

i

Table of Contents

Chapter 1 Installation Preparations............................................................................................. 1-1 1.1 Personnel Requirements ................................................................................................... 1-1 1.2 Preparation Tasks for Different Installation Roles ............................................................. 1-1 1.3 Tools & Instruments Preparation ....................................................................................... 1-2 1.4 Testing Antenna & Feeder Equipment .............................................................................. 1-3

1.4.1 Testing antenna....................................................................................................... 1-3 1.4.2 Testing TTA............................................................................................................. 1-3

1.5 Adding Feeder Connector.................................................................................................. 1-4 1.6 Assembling Antenna.......................................................................................................... 1-5

Chapter 2 Installing NodeB Antenna & Feeder System............................................................. 2-1 2.1 Overview ............................................................................................................................ 2-1

2.1.1 Structure of Antenna & Feeder System .................................................................. 2-1 2.1.2 Procedure of Installing Antenna & Feeder System................................................. 2-5

2.2 Installing Outdoor Grounding Bar ...................................................................................... 2-6 2.3 Installing Antenna Support................................................................................................. 2-8

2.3.1 Installing Antenna Support on Tower...................................................................... 2-8 2.3.2 Installing Antenna Support on Roof ...................................................................... 2-11

2.4 Installing Antennas on Tower Platform............................................................................ 2-17 2.4.1 Hoisting Antennas and Other Articles ................................................................... 2-17 2.4.2 Installing Omnidirectional Antenna........................................................................ 2-18 2.4.3 Installing Directional Antenna................................................................................ 2-21

2.5 Installing Antennas on Roof............................................................................................. 2-27 2.5.1 Carrying (Hoisting) Antennas and Other Articles .................................................. 2-27 2.5.2 Installing Omnidirectional Antenna........................................................................ 2-27 2.5.3 Installing Directional Antenna................................................................................ 2-30

2.6 Installing Tower-top Amplifier .......................................................................................... 2-34 2.6.1 General.................................................................................................................. 2-34 2.6.2 Installing TTA ........................................................................................................ 2-36 2.6.3 Installing Jumpers of TTA ..................................................................................... 2-38

2.7 Installing Feeder Window ................................................................................................ 2-39 2.7.1 Structure................................................................................................................ 2-40 2.7.2 Installing Feeder Window...................................................................................... 2-40

2.8 Installing Feeders............................................................................................................. 2-42 2.8.1 Cutting Feeders and Attaching Temporary Labels ............................................... 2-43 2.8.2 Hoisting and Fixing Feeders ................................................................................. 2-44 2.8.3 Connecting Jumpers Between the Antenna and the Feeder ................................ 2-47 2.8.4 Connecting the Jumpers Between TTA and the Feeder (if TTA Available) .......... 2-48


ii

2.8.5 Laying and Fixing Feeders.................................................................................... 2-49 2.8.6 Grounding Feeders ............................................................................................... 2-54 2.8.7 Leading Feeders into Equipment Room ............................................................... 2-60 2.8.8 Installing Lightning Arresters for Feeders ............................................................. 2-63 2.8.9 Installing Indoor Jumpers ...................................................................................... 2-65

2.9 Testing Antenna & Feeder System.................................................................................. 2-71 2.10 Waterproof Treatment for Connectors and Feeder Window ......................................... 2-71

2.10.1 Waterproof Treatment for Outdoor Connectors .................................................. 2-71 2.10.2 Waterproof Treatment for Feeder Window ......................................................... 2-74

Chapter 3 Installing GPS Antenna & Feeder System................................................................. 3-1 3.1 Overview ............................................................................................................................ 3-1

3.1.1 Installation Procedure ............................................................................................. 3-1 3.1.2 Requirements for Antenna Installation Location ..................................................... 3-2

3.2 Installing Antenna Stand.................................................................................................... 3-3 3.2.1 Installation Mode and Requirements for Antenna Stand ........................................ 3-3 3.2.2 Installing Antenna Stand on Iron Tower.................................................................. 3-4 3.2.3 Installing Antenna Stand on Roof............................................................................ 3-6

3.3 Installing GPS Antenna...................................................................................................... 3-8 3.4 Installing Lightning Arrester and Feeder............................................................................ 3-9

3.4.1 Installing Lightning Arrester..................................................................................... 3-9 3.4.2 Binding Jumpers.................................................................................................... 3-12 3.4.3 Laying out Feeders ............................................................................................... 3-12 3.4.4 Grounding Feeder ................................................................................................. 3-13 3.4.5 Feeder Test ........................................................................................................... 3-13

Chapter 4 Checking Installation................................................................................................... 4-1 4.1 Checking Antenna & Feeder System of NodeB ................................................................ 4-1 4.2 Checking Antenna & Feeder System of GPS.................................................................... 4-4

Appendix A Interval Requirements for Antenna Installation ....................................................A-1 A.1 Omni-directional Antenna..................................................................................................A-1 A.2 Directional Antenna ...........................................................................................................A-1 A.3 Sharing the Same Site with BTS of GSM or CDMA..........................................................A-1

A.3.1 Shareing the same site with BTS of GSM ..............................................................A-1 A.3.2 Shareing the same site with BTS of CDMA............................................................A-2

Appendix B Engineering Label of Antenna & Feeder System..................................................B-1 B.1 Introduction........................................................................................................................B-1 B.2 Label of Feeder .................................................................................................................B-1

B.2.1 Label of Outdoor Feeder.........................................................................................B-1 B.2.2 Indoor Feeder Label ...............................................................................................B-3

B.3 Label of Jumper.................................................................................................................B-3


iii

Table of Figure Description

Figure 1-1 Simple protection treatment of a feeder connector .............................................. 1-4

Figure 1-2 Simple waterproof treatment for the connecting point of the feeder .................... 1-5

Figure 1-3 Assembling flow of antenna.................................................................................. 1-6

Figure 1-4 Fixing clip for omnidirectional antenna (1)............................................................ 1-6

Figure 1-5 Fixing clip for omnidirectional antenna (2)............................................................ 1-6

Figure 1-6 Fixing of the omnidirectional antenna................................................................... 1-7

Figure 1-7 Fixing clip for the directional antenna................................................................... 1-8

Figure 1-8 Pitch angle adjuster .............................................................................................. 1-8

Figure 1-9 Finished connection of jumpers and directional antenna ..................................... 1-9

Figure 2-1 Antenna................................................................................................................. 2-1

Figure 2-2 Typical structure of the antenna & feeder system (with single-polarization antenna, without TTA, installed on the roof)................................................................................... 2-2

Figure 2-3 Typical structure of the antenna & feeder system (with dual-polarization antenna and TTA, installed on roof) .............................................................................................. 2-3

Figure 2-4 Typical structure of the antenna & feeder system (with single-polarization antenna and TTA, installed on tower)............................................................................................ 2-4

Figure 2-5 Antenna & feeder system installation flow............................................................ 2-5

Figure 2-6 Outdoor grounding bar ......................................................................................... 2-6

Figure 2-7 Installation of outdoor grounding bar (1) .............................................................. 2-7

Figure 2-8 Installation of outdoor grounding bar (2) .............................................................. 2-7

Figure 2-9 Insulating washer b............................................................................................... 2-7

Figure 2-10 Structure of the antenna support on tower (unit: mm)........................................ 2-8

Figure 2-11 Installation of the lightning rod............................................................................ 2-9

Figure 2-12 Installation flow of antenna support on the tower ............................................. 2-10

Figure 2-13 Installing the antenna support on the tower platform ....................................... 2-10

Figure 2-14 Structure of the antenna support on the roof.................................................... 2-11

Figure 2-15 Procedure of installing the antenna support on the roof .................................. 2-13


iv

Figure 2-16 Structure and installation of the antenna support base .................................... 2-14

Figure 2-17 Installing the fixing clip of the antenna support onto the wall ........................... 2-15

Figure 2-18 Fixing the antenna support onto the wall (no shorter than 1200mm)............... 2-16

Figure 2-19 Fixing the antenna support onto the wall (shorter than 1200mm).................... 2-16

Figure 2-20 Hoisting the directional antenna ....................................................................... 2-17

Figure 2-21 Installing the omnidirectional antenna onto the tower platform ........................ 2-18

Figure 2-22 Procedure of installing the omnidirectional antenna......................................... 2-19

Figure 2-23 Installation of the omnidirectional antenna ....................................................... 2-20

Figure 2-24 Installation of the directional antenna on the tower platform............................ 2-22

Figure 2-25 Procedure of installing the directional antenna ................................................ 2-23

Figure 2-26 Relationship between the azimuth angle of the directional antenna and the sector....................................................................................................................................... 2-24

Figure 2-27 Diagram 1 for the directional antenna with the mounting hole corresponding to the pitch angle ............................................................................................................... 2-25

Figure 2-28 Diagram 2 for the directional antenna with the mounting hole corresponding to the pitch angle ............................................................................................................... 2-25

Figure 2-29 Angle display .................................................................................................... 2-25

Figure 2-30 Angle display before adjusting the pitch angle of the antenna......................... 2-26

Figure 2-31 Angle display after adjusting the pitch angle of the antenna ............................ 2-26

Figure 2-32 Installing the omnidirectional antenna onto the support at the roof.................. 2-28

Figure 2-33 Procedure of installing the omnidirectional antenna on the roof ...................... 2-29

Figure 2-34 Installing the directional antenna at the roof (without wall, with TTA) .............. 2-30

Figure 2-35 Installing the directional antenna at the roof (with wall no shorter than 1200mm and TTA)........................................................................................................................ 2-31

Figure 2-36 Procedure of installing the directional antenna on the roof .............................. 2-32

Figure 2-37 Outline of single TTA ........................................................................................ 2-34

Figure 2-38 Outline of dual TTA........................................................................................... 2-35

Figure 2-39 Steel fastening bracket ..................................................................................... 2-37

Figure 2-40 Installing the TTA onto the pole ........................................................................ 2-37

Figure 2-41 Installing the TTA on the wall ............................................................................ 2-37


v

Figure 2-42 Jumper between the antenna and TTA ............................................................ 2-38

Figure 2-43 Jumper between the TTA and the feeder ......................................................... 2-38

Figure 2-44 Appearance of the jumper between the antenna and TTA............................... 2-39

Figure 2-45 Size of the 12-hole feeder window (unit: mm).................................................. 2-40

Figure 2-46 Structure of the 12-hole feeder window............................................................ 2-40

Figure 2-47 Mounting holes of the feeder window (unit: mm) ............................................. 2-41

Figure 2-48 Installation of the feeder window ...................................................................... 2-42

Figure 2-49 Procedure of installing the feeders of indoor NodeB........................................ 2-43

Figure 2-50 Protection of the feeder connector (unit: mm).................................................. 2-45

Figure 2-51 Fixing the upper end of the feeder on the tower .............................................. 2-46

Figure 2-52 1-for-1 Feeder fixing clips ................................................................................. 2-46

Figure 2-53 1-for-3 Feeder fixing clips ................................................................................. 2-47

Figure 2-54 Appearance of the jumper connected between the antenna and the feeder ... 2-47

Figure 2-55 Jumper between the antenna and the feeder................................................... 2-48

Figure 2-56 Appearance of the jumper connected between the TTA and the feeder .......... 2-49

Figure 2-57 Fixing the feeders on the tower (using the 1-for-3 fixing clip) .......................... 2-50

Figure 2-58 Fixing the feeders on the tower (using the 1-for-2 fixing clip) .......................... 2-50

Figure 2-59 Laying the feeder from the tower top to the window ........................................ 2-51

Figure 2-60 Feeders in the fixing clips ................................................................................. 2-52

Figure 2-61 Laying the feeder from the roof to the feeder window...................................... 2-52

Figure 2-62 Leading the feeder into the equipment room through the roof ......................... 2-53

Figure 2-63 Lightning protection grounding of the feeder (for the antenna installed on the tower) ............................................................................................................................ 2-55

Figure 2-64 Lightning protection grounding of the feeder down the cabling ladder ............ 2-56

Figure 2-65 Installation of the feeder grounding clips.......................................................... 2-57

Figure 2-66 Leading direction of the grounding cable of the feeder grounding clip ............ 2-58

Figure 2-67 Connecting the grounding cable of the feeder grounding clip to the steel plate of the tower........................................................................................................................ 2-59


vi

Figure 2-68 Grounding when the feeder does not enter the equipment room (grounding bar available) ....................................................................................................................... 2-60

Figure 2-69 Grounding when the feeder does not enter the equipment room (grounding bar unavailable) ...................................................................................................................2-60

Figure 2-70 Feeder layout for BTS3812 in all kinds of conditions ....................................... 2-61

Figure 2-71 Feeder layout for BTS3806 in all kinds of conditions ....................................... 2-62

Figure 2-72 Lightning arrester for TX and RX...................................................................... 2-63

Figure 2-73 Grounding the lightning arrester....................................................................... 2-64

Figure 2-74 Layout of the indoor jumpers............................................................................ 2-66

Figure 2-75 Silk-screen of the outlets at the BTS3812 cabinet top ..................................... 2-67

Figure 2-76 Silk-screen of the outlets at the BTS3806 cabinet top ..................................... 2-70

Figure 2-77 Waterproof insulation tape................................................................................ 2-72

Figure 2-78 PVC tape .......................................................................................................... 2-72

Figure 2-79 Wrapping up the feeder with waterproof insulation tape .................................. 2-73

Figure 2-80 Feeder with waterproof and encapsulation treatment ...................................... 2-74

Figure 2-81 The feeder window going through the waterproof treatment............................ 2-74

Figure 3-1 Installation procedure of the GPS antenna & feeder system ............................... 3-2

Figure 3-2 Installing antenna ................................................................................................. 3-3

Figure 3-3 Structure of the antenna stand on the tower ........................................................ 3-5

Figure 3-4 Installed antenna support on tower ...................................................................... 3-6

Figure 3-5 Structure of GPS antenna stand........................................................................... 3-7

Figure 3-6 GPS antenna of Type UNONCORE ..................................................................... 3-8

Figure 3-7 Installation procedure of lightning arrester and feeder......................................... 3-9

Figure 3-8 Appearance of Type iS-MR50LNZ+6 lightning arrester...................................... 3-10

Figure 3-9 Appearance of DGXZ+6NFNM-A lightning arrester ........................................... 3-11

Figure B-1 Outdoor feeder label (unit: mm)...........................................................................B-2

Figure B-2 Indoor feeder label (unit: mm)..............................................................................B-3

Figure B-3 Jumper label (unit: mm) .......................................................................................B-4


vii

Table of Table Description

Table 1-1 List of tools & instruments exclusively for antenna and feeder system installation1-2

Table 2-1 Correspondence between the jumper port silk-screens and the engineering labels in different configuration modes (BTS3812).................................................................. 2-68

Table 2-2 Correspondence between the jumper port silk-screens and the engineering labels in different configuration modes (BTS3812).................................................................. 2-70

Table 4-1 Check items of the antenna & feeder system of NodeB ........................................ 4-1

Table 4-2 Check items of the antenna & feeder system of GPS............................................ 4-4

Table B-1 Contents of feeder label.........................................................................................B-1

Table B-2 Correspondence between feeder label and jumper port silkscreen ......................B-2

Installation Manual –Antenna & Feeder System Installation WCDMA NodeB Chapter 1 Installation Preparations

1-1

Chapter 1 Installation Preparations

Note:

This chapter introduces the preparations related to the installation of antenna & feeder system only. Other preparations, such as technical document preparations, installation environment check, engineering schedule and kickoff coordination and unpacking inspections, are the same as those of other NodeB devices.

In order to guarantee a good installation quality and the safety of the installing personnel, the installation should be carried out on the sunny days without strong wind. During the installation especially the antenna installation, the installing personnel should attach highly importance to the safety and implement the related safety regulations.

1.1 Personnel Requirements

The antenna & feeder system is installed by the antenna & feeder installation personnel under the supervision of the project supervisor.

I. Requirements for project supervisor

The project supervisor should:

Be familiar with the materials, tools and methods related to the antenna & feeder installation;

Be familiar with the installation flow and the installation methods of all the parts; Have a strong safety consciousness.

II. Requirements for tower installer

The tower installer should:

Obtain the relevant certificates after relevant training; Be in good health, free of alcohol and have paid for personal safety insurance; Use the safeties following their usage instructions; Never wear loose clothes or slippery shoes when performing installation.


1-2

1.2 Preparation Tasks for Different Installation Roles The project supervisor should contact customers who will be present on the site

before kickoff so as to prepare the instruments and tools needed. If the feeders are to be routed through the cabling holes between buildings, it is necessary to remind the customers of the keys to the rooms or roof corridor through which the feeders run;

All persons on the site must wear safety helmets, and each installation team should be provided with a first-aid kit;

The personnel under the tower are under the obligation to keep unrelated persons, especially children away from the engineering site, and to take care installation parts and instruments and prevent loss or damage from occurring;

The personnel on the tower must fasten safety belts, and get the tool kit and some simple bandages such as the Woundplast handy.

Caution:

When multiple persons are to climb the tower, the person carrying the tool kit should climb up last and down first lest a barely fallen tool should injure others.

The tool kit should be opened only when tools are needed and be closed immediately after getting the tools.

1.3 Tools & Instruments Preparation

Table 1-1 illustrates tools and instruments exclusive for antenna & feeder system. The common tools needed, such as percussion drill and screw drivers, have been listed in the tool list for indoor devices installation.

Table 1-1 List of tools & instruments exclusively for antenna and feeder system installation

No. Measuring tools

Suspension-mounting

tools Special tools for feeders

Protective tools

Tools borrowed from the local

customer Other tools

Test tools

1 An angle display

An assembly pulley

A feeder nipper

Safety belts (for personnel required to operate out of the tower platform)

Double ladder Canvas bag for tools

Cymometer


1-3

No. Measuring tools

Suspension-mounting

tools Special tools for feeders

Protective tools

Tools borrowed from the local

customer Other tools

Test tools

2 A compass

Two ropes (1 thin and 1thick, both 150m long)

Cable cutter (applicable for the feeder specification)

Protecting capsLifting tools for the main feeder wheel spindle

Gloves

Test mobile phone (optional)

3 Feeder noose

Special tools for making feeders (1/2", 7/8")

Safety ropes Walkie-talkie

Radio analyzer

4

Blast lamp (used in the cold environment to warm and soften the waterproof & sealing materials)

Thick union suits

Multi-purpose outlets

5 RF protective clothing

1.4 Testing Antenna & Feeder Equipment

To guarantee the quality of the installation of the antenna & feeder system, it is suggested that the antenna & feeder equipment be tested before the installation. To reduce the operations on the tower, please test the equipment, assemble the antenna and add the feeder connectors on the ground. In the case of roof installation, if there is enough space, the preparation can be done on the roof, or else should be done on the ground or in the room.

1.4.1 Testing antenna

Since antenna is vulnerable during transportation, it is necessary to inspect the antenna carefully prior to the installation for any visible damage, crack or connector problem. If any, contact the personnel concerned immediately and suspend the installation.

If no obvious problem found, connect the antenna with the corresponding jumper and test its Voltage Standing Wave Ratio (VSWR) using the radio analyzer. Try different orientations when testing the antenna, as it is related to the antenna VSWR. If the antenna VSWR is higher than 1.5 in the case of all orientations, there may be some


1-4

problems with the antenna or its connectors, and in this case, please perform the above test again. If the antenna VSWR is lower than 1.5 just in the case of some orientations, it is not definite that the antenna has problems and the installation can proceed. Upon completion of the antenna installation, re-test the antenna VSWR. If the antenna VSWR is still too high, it can be concluded that the problem lies in the antenna and therefore, the antenna should be replaced.

1.4.2 Testing TTA

Inspect the TTA for any obvious damage, and then test the VSWR on both ports. During the test, make sure that the port not being tested is connected with the 50 Ω-matched terminal load. If not, error of the test result may be great.

This test is implemented when the equipment is not powered on. If the test result is much different from the corresponding index, the TTA should be replaced.

Note:

Normally, the TTA should be tested when it is powered on, for the result is better than that in power-off case. The test mentioned above simplified is a simplified operation applicable to occasions without corresponding test. If conditions permit, installer should also test the current of the powered-on TTA. If the TTA current is within the range of 50~175mA, the VSWR is considered to be suitable.

1.5 Adding Feeder Connector

Feeder connectors should be added to the feeders on the installation site. It is recommended that the connectors of the feeders to be used on the tower be made on the ground, and then be wrapped up using soft materials such as sponge for protection purpose before being hoisted, as shown in Figure 1-1. There are two types of connectors: 7/16 DIN and N. The adding methods for the two types are the same. The detailed operation instruction for adding the feeder connector can be found in the packing box. Do follow the instruction. After adding the connectors, the instructions should be kept for later reference.


1-5

Figure 1-1 Simple protection treatment of a feeder connector

Note:

The connectors of the indoor jumpers (1/2”, 7/16 DIN, male) are normally added after the feeders are led into the room.

The supersoft jumpers are adopted in fixed length are adopted as the outdoor jumpers. There is no need to add their connectors onsite, since they have all been added before delivery. If it is necessary to add them onsite, please follow the instructions in their packing boxes.

Caution:

If the connector has not been added to the feeder or the connector has been add to the feeder but the feeder has not been connected with the jumper, and the remaining operation needs to be done on the next day, then apply simple water treatment to connecting point of the feeder by wrapping up the connecting point with waterproof tape, as shown in Figure 1-2, or covering the connecting point with a plastic bag and then wrapping it up with waterproof tape.


1-6

Figure 1-2 Simple waterproof treatment for the connecting point of the feeder

1.6 Assembling Antenna

To reduce the operations on the tower, it is necessary to assemble the antenna on the ground. For assembling method, please refer to the instruction in the antenna packing box. After assembling, please keep the instruction for later reference.

The installation procedure is shown in Figure 1-3.

Start

Install the antenna fixing clip

Apply waterproof treatment to the connectors

Connect the antenna with the jumper

End

Figure 1-3 Assembling flow of antenna

I. Assembling omnidirectional antenna

The accessories of omnidirectional antenna are antenna fixing clip and jumper. The fixing clips are shown in Figure 1-4 and Figure 1-5.


1-7

Figure 1-4 Fixing clip for omnidirectional antenna (1)

(1) (2)

(3) (1) Fixing piece (2) U bolt M12×580 (3) Nut M12

Figure 1-5 Fixing clip for omnidirectional antenna (2)

Note:

There are many types of fixing clips for omnidirectional antenna with different installation methods. Figure 1-4 and Figure 1-5 illustrate two of them. The actual installations of fixing clips depend on the specific conditions. The following description is based on the case adopting the fixing clip shown in Figure 1-4.

The procedure of assembling the omnidirectional antenna is as follows:

1) Add the two fixing clips onto the omnidirectional antenna. The parts contacting the antenna should be tightened, as shown in Figure 1-6.


1-8

(1)

(2)

(3)

(1) Omnidirectional antenna (2) Antenna jacket (3) Fixing clip

Figure 1-6 Fixing of the omnidirectional antenna

2) Connect the connector of the jumper with the connector of the antenna and tighten the connection.

3) Apply waterproof treatment to the connectors joining the antenna and the feeder. See "2.10.1 Waterproof Treatment for Outdoor Connectors".

Note:

Steps 2) and 3) can be performed on the tower. When wrapping up a connector, please wrap up the connector with a layer of insulation tape before wrapping with the semiconductive adhesive tape for the convenience of removing the tape.

II. Assembling directional antenna

The accessories of directional antenna are antenna fixing clip (shown in Figure 1-7) and pitch angle adjuster (shown in Figure 1-8) and jumper.


1-9

Figure 1-7 Fixing clip for the directional antenna

Figure 1-8 Pitch angle adjuster

The procedure of assembling directional antenna is as follows:

1) Identify the top and the bottom of the antenna according to the indications on the back of the antenna. (The top is the pitch angle adjuster and the bottom is for fixing the antenna on the support).

2) Install the accessories to their proper places in strict accordance with the accessory assembly drawings provided by the supplier.

3) Connect the connector of the jumper with that of the antenna and tighten the connection.

4) Apply waterproof and encapsulation treatment to the connectors joining the antenna and the feeder. See "2.10.1 Waterproof Treatment for Outdoor Connectors".

The finished connection of the jumpers and the directional antenna as well as the relevant waterproof treatment is shown in Figure 1-9.


1-10

Figure 1-9 Finished connection of jumpers and directional antenna

Caution:

The spring washers and flat washers should be applied both for the antenna fixing clip and pitch angle adjuster. The spring washes should be on the flat washers.

Installation Manual –Antenna & Feeder System Installation WCDMA NodeB

Chapter 2 Installing NodeB Antenna & Feeder System

2-1


2.1 Overview

The installation of the NodeB antenna & feeder system mainly includes antenna installation, jumper installation, feeder layout and the installation of the lightning protection system for the antenna & feeder. This manual only describes the installation of omnidirectional and directional antennas on tower or on roof. The appearances of the omnidirectional and directional antennas are shown in Figure 2-1.

(1 ) (2 )

(1) Omnidirectional antenna (2) Directional antenna

Figure 2-1 Antenna

To guarantee the project quality and the safety of constructors, the installation should be carried out on the sunny days without strong wind. During the installation especially the antenna installation, the installing personnel should attach highly importance to the safety and implement the related safety regulations.

2.1.1 Structure of Antenna & Feeder System

The antenna & feeder system of indoor NodeB is composed of antenna, feeder, jumper, lightning arrester, feeder grounding clip, feeder window and tower-top amplifier (optional). While that for outdoor NodeB has the same composition except the feeder window.

Note:

The TTA is the abbreviation for tower-top amplifier, and will be used in the following content.



2-2

Figure 2-2, Figure 2-3 and Figure 2-4 show three typical structures of the indoor NodeB antenna & feeder system of directional antenna. While the antenna & feeder system of outdoor NodeB has the same structure.

(1) Directional antenna (2) Antenna support (3) Outdoor jumper (4) Outdoor cabling

rack (5) Feeder fixing clip (6) Outdoor grounding bar (7) Feeder window (8) Lightning arrester (9) Cable tie (10) Indoor jumper (11) Indoor cabling rack (12) Feeder (13) Grounding cables of the feeder grounding clip (14) To outdoor lightning protection grounding cables

Figure 2-2 Typical structure of the antenna & feeder system (with single-polarization antenna, without TTA, installed on the roof)



2-3

(1) Directional antenna (2) Tower-top amplifier (3) Outdoor jumper (4) Outdoor cabling rack(5) Feeder fixing clip (6) Outdoor grounding bar (7) Feeder window (8) Lightning arrester (9) Cable tie (10) Indoor jumper (11) Indoor cabling rack (12) Feeder (13) Antenna support

Figure 2-3 Typical structure of the antenna & feeder system (with dual-polarization antenna and TTA, installed on roof)



2-4

(11)

(12)

(13)

(1)

(2)

(3)(4)

(5)(6)

(7)

(8)

(9)

(10)

(1) Lightning rod (2) Antenna support (3) Guard bar on the

tower platform (4) Tower-top amplifier

(5) Cable tie (6) Directional antenna (7) Waterproof curve of the jumper (8) Lightning protection grounding clip of the feeder (9) Feeder (10) Outdoor cabling rack (11) Feeder window (12) Tower grounding conductor (13) Outdoor grounding bar

Figure 2-4 Typical structure of the antenna & feeder system (with single-polarization antenna and TTA, installed on tower)



2-5

2.1.2 Procedure of Installing Antenna & Feeder System

The installation procedure of antenna & feeder system for indoor NodeB is shown in Figure 2-5. While the outdoor NodeB has the same installation procedure except that there is no step “Install the feeder window” and “Lead the feeder into the room”.

Install TTA and the jumper from the antenna to TTA

Install the feeder, the jumper and the grounding clip

Install the feeder window (optional)

Install the feeder lightning arrester and indoor jumper

End

TTA configured?

Y

N

Pass the test on the antenna & feeder system?

NFind the problem and handle it

Y

Install the antenna support (optional)

Start

Install the outdoor grounding bar (optional)

Install the antenna

Encapsulate the outdoor connectors and the feeder window

Lead the feeder into the room

Figure 2-5 Antenna & feeder system installation flow



2-6

Note:

The installation method and procedure may differ according to the different installation environment and the antenna adopted. The project supervisor should arrange the work according to the engineering documents, the number of the installing personnel, installation environment and the type of the antenna.

2.2 Installing Outdoor Grounding Bar

Note:

If the outdoor grounding bars are available, and they all meet the requirement, this section can be skipped.

The outdoor grounding bar mainly serves as the lightning protection-grounding bar. Normally, it is installed near the feeder window and the optimum installation position is the place right below the feeder window or on the rainproof wall of the feeder well at the roof. In actual installation, the grounding bar should be positioned on the basis of engineering drawings.

The grounding bar is shown in Figure 2-6.

(1)

330mm

(1) Bolt M8

Figure 2-6 Outdoor grounding bar

Its installation is shown in Figure 2-7 and Figure 2-8.



2-7

(1)

(2)(3)

(4)

(5)

(6)

(1) Nut M12 (2) Spring washer 12 (3) Big plain washer (4) Insulating washer a (5) Insulating washer b (6) Expansion bolt and expansion nut

Figure 2-7 Installation of outdoor grounding bar (1)

(1)(2)

(3)

(4)

(6)

(7)

(5)

(1) Nut M12 (2) Spring washer 12 (3) Big plain washer (4) Insulating washer a (5) Insulating washer b (6) Expansion bolt and expansion nut (7) Indoor grounding bar

Figure 2-8 Installation of outdoor grounding bar (2)

The insulating washer b is shown in Figure 2-9.

Figure 2-9 Insulating washer b



2-8

2.3 Installing Antenna Support

Note:

The installation of antenna support is usually done by the customer following the requirements designed by the vendor. If a support meeting the requirements has already been installed on the site, this section can be skipped.

The requirements and the installation methods of the support differ according to the different antenna types and installation environment. This section only describes an installation case. As for other cases, please refer to the engineering documents and the support instructions.

2.3.1 Installing Antenna Support on Tower

I. Structure of antenna support

There are several types of antenna support for the installation on tower. The one illustrated in Figure 2-10 will be introduced in detail as an example.

(1)Bolt M12×220 (2) Connecting plate (3) Bolt M12×45 (4) Expansion link (5) Fixed link (6) Dwang (7) Stiffener

Figure 2-10 Structure of the antenna support on tower (unit: mm)



2-9

II. Installation requirements

The installation plane of the antenna support should be perpendicular to the level plane.

The mast for the tower lightning rod should be installed separately, satisfying the requirements for the lightning protection of all antennas. When the antenna support hangs over the tower platform, make sure that the antenna on the support is in the effective lightning protection coverage, as shown in Figure 2-11.

(1) Lightning rod (2) Antenna (3) Mast for the lightning rod

Figure 2-11 Installation of the lightning rod

Make sure that the antenna support is installed in the correct direction so as to guarantee the Rx & Tx performances and direction adjustment of the directional antenna.

If possible, install hanging devices to strengthen the antenna support and to avoid possible deformation in the future.

The dwang should be reinforced using a stiffener. The lengths of expansion link and the dwang should satisfy the actual need. The cross section should be sealed by soldering with a plate for waterproof purpose.

Confirm the reliability of all soldering joints. There should be no dry joint or open solder point. The support should be coated with the antirust aluminum paint and preferably made of galvanized steel.

III. Installation flow

The installation flow is shown in Figure 2-12.



2-10

Start

Hoist the support to the tower

Determine the installation position of the support

Fix the support

End

Figure 2-12 Installation flow of antenna support on the tower

1) Mount a fixed pulley at the tower top. Hoist the support to the tower platform using the fixed pulley. When the support is going up, use another rope to maintain the rising direction of the support.

2) Determine the installation position of the antenna support on the tower platform according to the antenna & feeder installation drawing in the engineering design drawings.

3) Hang over the support out of the tower platform, and fix it onto the tower using a U fixing clip (including the connecting piece and the U bolt), as shown in Figure 2-13.

(1)

(2)

(3) (1) Connecting piece (2) Crossbeam of the tower (3) U bolt

Figure 2-13 Installing the antenna support on the tower platform

4) Connect the guardrails on the tower platform with the connecting backplanes using bolts M12×45. If it’s not easy to connect, sold the connecting backplanes to



2-11

the guardrails. Soldering should be secure. There should be no false soldering or open solder point etc. All the welded points and the support should be covered with antirusting paint.

2.3.2 Installing Antenna Support on Roof

I. Structure of the antenna support

There are several antenna support structures on the roof, take the following one shown in Figure 2-14 for example.

(1)(2)

(3)

(4)

(5)

(6)

(7)

(8)

(1) Antenna lightning rod (2) Solder point (3) Main supporting post 2 (4) Bolt M10×80 (5) Stiffener (6) Main supporting post 1 (7) Mat of the support post (8) Anchor of the stiffener

Figure 2-14 Structure of the antenna support on the roof

II. Installation requirements

The connecting pieces for the stiffener should be installed in the places in which they do not impede adjustment of the antenna orientation and pitch angle.

The antenna support should be perpendicular to the level plane.



2-12

For installation of the directional antenna on the roof, the antenna support should be equipped with a lightning rod and be connected with the lightning net of the building.

For installation of the omnidirectional antenna on the roof, the antenna support generally should not be installed with a lightning rod. Instead, the lightning rod should be installed on a separate support.

If a lightning rod is installed on the support also equipped with omnidirectional antennas, it is required the antennas should be hung over out of the support and the distance should be 1~1.5m.

The antenna support and all soldered parts should be coated with the anti rusting paint. All soldering joints should be secure. There should be no false soldering or open solder point.



2-13

III. Installation flow

Start

Move the support to the roof

Determine the installationposition of the support

Solder the lightning rod

Fix the base of the support

Wall available on the roof?

N

Y

Install the stiffener

Connect the mainsupporting posts 1 & 2

Wall ≥1200 mm tall?

YN

Fix the two fixing points ofthe support respectively onthe wall and the floor of the roof

Connect the base of thesupport to the lightning netof the building using the connecting bar

Soldered parts processing

End

The support connectedto the lightning net of

the building?

N

Y

Fix the two fixingpoints of the supporton the wall

Protect the base of the support, the anchor of the stiffener as well as the expansion bolts fixing the anchor using concrete

Figure 2-15 Procedure of installing the antenna support on the roof



2-14

IV. Installing the antenna support on the roof without wall

1) Hoist the antenna support to the roof. 2) Determine the installation location of the antenna support on the roof according

to the antenna & feeder installation drawing in the engineering design drawings. 3) Solder the lightning rod onto the main supporting post of the antenna (with their

centerlines on the same straight line). 4) Fix the base of the antenna support vertically onto the surface of the roof using 8

bolts M10×45, as shown in Figure 2-16.

(1 )

(2 )

(3 )

(4 ) (5 )

(1) Hex bolt M10×50 (2) Connecting piece of the stiffener (3) Main supporting post 1 of the antenna (4) Mat of the main supporting post of the antenna (5) Expansion bolt M10×50

Figure 2-16 Structure and installation of the antenna support base

5) Reinforce the main supporting post by using the stiffener. The length of the main supporting post decides that of the stiffener. As shown in Figure 2-14, connect the stiffener with the main supporting post securely using the connecting pieces of the stiffener. Connect the anchor onto the stiffener. Fix each anchor of the stiffener onto the surface of the roof using two expansion bolts M10×45. Make all efforts to ensure that no deformation may happen to the stiffener.

6) As shown in Figure 2-14, connect the main supporting posts 1 and 2 of the support securely using six bolts M10×80.

7) For the antenna support not soldered with the outdoor cabling rack at the roof or soldered with the cabling rack that is unconnected with the lightning net of the building, connect its base with the lightning net of the building using the lightning connecting bar. (The lightning connecting bar serves as the mounting piece of the outdoor cabling rack).



2-15

8) The antenna support base and all soldered parts should be coated with the antirusting paint.

9) The base of the antenna support at the roof, the anchor of the stiffener as well as the expansion bolts used for their connection with the floor should be covered with concrete for protection.

Note:

Generally there is no lightning rod on the support to be installed with omnidirectional antennas. The lightning rod should be installed on a separate support.

V. Installing the antenna support onto the roof with wall

If the roof is enclosed with walls, it is not easy to install the antenna support onto the surface of the roof. In this case, the antenna support can be installed on the wall. Figure 2-17 shows how to mount the fixing clip of the antenna support onto the wall.

(1)

(2)

(3) (4) (5) (1) Expansion bolt M12×120 (2) V connecting piece (3) 180 connecting piece (4) Bolt M12×140 (5) Fixing plate

Figure 2-17 Installing the fixing clip of the antenna support onto the wall

When the wall is no shorter than 1200 mm, both fixing points of the support can be fixed onto the wall using expansion bolts, as shown in Figure 2-18.



2-16

Figure 2-18 Fixing the antenna support onto the wall (no shorter than 1200mm)

When the wall is shorter than 1200mm, fix one fixing point of the main supporting post onto the wall using expansion bolts and the other onto the surface of the roof, as shown in Figure 2-19.

Figure 2-19 Fixing the antenna support onto the wall (shorter than 1200mm)



2-17

2.4 Installing Antennas on Tower Platform

2.4.1 Hoisting Antennas and Other Articles

Mount a fixed pulley at the tower top, thrill a rope through the pulley, and knot the rope at each end of the antenna. Then the personnel on the tower and on the ground cooperate in hoisting the antenna to the location (the antenna support) where the antenna is to be fixed. During the hoisting, the personnel on the tower should pull up the rope and the personnel on the ground should keep pulling the rope to avoid any damage to the antenna due to possible collision with the building or with the tower. Figure 2-20 shows how to hoist the directional antenna.

Figure 2-20 Hoisting the directional antenna

Caution:

During the hoisting, make sure there is no person supporting right below the hoisted object. The personnel working outside the tower platform should wear safety belts and harnesses.

The small metal articles such as the fixing piece and the spanner should be packed in the tool bag and then be hoisted.

The hoisted articles should be put in the place where it is not easy to slip, and make some safety treatments.



2-18

2.4.2 Installing Omnidirectional Antenna

The installation of the omnidirectional antenna on the tower platform is shown in Figure 2-21

(1) (2)

(3)

(4)

(5)

(1) Tower (3) Antenna support at the tower top (5) Cable tie (2) Tower amplifier (4) Omnidirectional antenna

Figure 2-21 Installing the omnidirectional antenna onto the tower platform

I. Installation requirements

When installing an omnidirectional antenna onto the tower, make sure that the antenna lies in the protection coverage of the lightning rod and that the antenna is at least 2 m away from the tower body.

The antenna axis should be perpendicular to the level plane and the possible error should be less than ±1o.

The gain of omnidirectional antenna should be 11 dBi, and the isolation degree should be 30 dB. For details please refer to Appendix A Interval Requirement for Antenna Installation.

Waterproof curve should be made for the antenna jumper.

II. Installation procedure




2-19

Start

Fix the antenna onto the stand

Y

N

Check the verticality of the antenna

Make the waterproof curve for the antenna jumper, bind and lay the jumper

End

Decide the installation location of the antenna

The verticality error ± 1° ?＜

Adjust and fix the antenna again

Tighten up the antenna

Figure 2-22 Procedure of installing the omnidirectional antenna

Installation details:

1) Decide the installation location of the antenna according to the engineering design drawings.

2) Place the feeding point of the antenna facedown and the sheathing near the main supporting post of the support, then fix the antenna to the fixing bar of the support, as shown in the left part of Figure 2-23.



2-20

(7 )

(1) Omnidirectional antenna (2) Antenna fixing clip (3) Fixing bar (4) Connecting piece (5) Crossbeam of the tower (6) U bolt (7) Waterproof curve of the jumper

Figure 2-23 Installation of the omnidirectional antenna

Caution:

The top end of the sheathing should be at the same height as or slightly higher than the support top. The transmission part of the antenna should be higher than the top of the fixing bar. The fixing tightness should be right enough for bearing and wind resistance. Looseness may cause loose connection while too much tension may damage the antenna sheathing

3) Use an angular tester to check whether the antenna axis is perpendicular to the horizontal plane. If the error is equal to or greater than ±1, adjust the antenna and re-fasten it.

4) Tighten up the antenna till the antenna cannot be moved by any hand pull or push.

5) Make the waterproof curve of the jumper, lay and bind the jumper along the cross bar of the support using black cable ties, and cut off the extra tail of the cable tie.



2-21

Caution:

The jumpers should be bent in a natural manner. The bending radius should be 20 times longer than the jumper diameter. The cable ties should be wound in the same way. When cutting the cable ties, there should be a slack of 3~5 mm left lest the cable ties fall off the jumper due to temperature change.

6) Hang over the dwang of the support installed with antenna out of the tower platform, use bolts to fix the connecting panel.

Note:

If there is no guardrail on the tower platform, set up an access board across the arms of two supports using a secure wood board so as to form a working platform for the installation personnel. This further guarantees the security to the operating personnel fixing the antenna and the connection of TTA with the feeder. After fixing the antenna and the connection of TTA with the feeder on one side, change the location of the wood board on the support arms to fix other antennas and the connection of TTA with other feeders.

2.4.3 Installing Directional Antenna

The installation of the directional antennas on the tower platform is shown in Figure 2-24.



2-22

(1) Tower (2) Antenna support on the top of the tower (3) Directional antenna (4) Cable tie

Figure 2-24 Installation of the directional antenna on the tower platform


The antenna should be in the protection coverage of the lightning rod. No interference from the tower structure should exist in the forward direction of the antenna. The length of the antenna protruding from the tower platform should be no less than 1 m.

The gain of antenna should be 15 dBi, the isolation degree 30 dB, and the semi-power angle 65°. As for details on antenna interval, please refer to the Appendix A Interval Requirement for Antenna Installation.

The waterproof curve should be made for the antenna jumper.





2-23

Start


Error of the azimuth angle ≤ 5° ?

N

Adjust the azimuthangle of the antenna

Decide the installation direction of the antenna

Error of the pitch angle ≤ 0.5° ?

Y

N

Make the waterproof curve for the jumper, distribute and bind the jumpers

End

YFasten the antenna

Adjust the pitch angle

Figure 2-25 Procedure of installing the directional antenna


1) Decide the installation direction of the antenna according to the project installation drawings.

2) Fix the antenna onto the main supporting post. The fixing tightness should be right enough for bearing and wind resistance. Looseness may cause loose connection while too much tension may damage the antenna sheathing.

3) Adjust the azimuth angle of the antenna. Determine the azimuth angle using a compass according to the engineering design documents. Normally, sector 1 is in the north. Sector 2 lies in the clockwise 120° direction and sector 3 in the next



2-24

clockwise 120° direction, as shown in Figure 2-26. By turning the antenna slightly, the personnel can adjust the azimuth angle till it satisfies the design index. Usually, the error of the azimuth angel should be [5°.

Sector 1North

120°

120 °

Sector 2Sector 3

Figure 2-26 Relationship between the azimuth angle of the directional antenna and the sector

4) Tighten up the lower fixing clip of the antenna till it cannot be moved by any hand pull or push.

5) Adjust the pitch angle of the antenna. If the mounting hole of each directional antenna has its corresponding pitch angle, the antenna can be installed directly into the mounting hole as shown in Figure 2-27 and Figure 2-28. However, the supporting post should be kept perpendicular to the ground during the installation. For other antennas, the pitch angles are adjusted in the following method:

Decide the pitch angle of the antenna using the angle display, as shown in Figure 2-29 and Figure 2-30.

By turning the antenna slightly, adjust the pitch angle till it satisfies the engineering design index, as shown in Figure 2-31. Usually, the error of the pitch angle is required to be [ 0.5°.

Tighten up the upper fixing clip of the antenna till it cannot be moved by any hand pull or push.



2-25

Get the mounting hole

number according to the

antenna pitch angle.

Figure 2-27 Diagram 1 for the directional antenna with the mounting hole corresponding to the pitch angle

Get the mounting hole

according to the mounting

hole number.

Figure 2-28 Diagram 2 for the directional antenna with the mounting hole corresponding to the pitch angle

Figure 2-29 Angle display



2-26

Figure 2-30 Angle display before adjusting the pitch angle of the antenna

Figure 2-31 Angle display after adjusting the pitch angle of the antenna

6) Make the waterproof curve of the antenna jumper, lay and bind the jumpers along the cross bar of the support using the black cable tie, and cut off the extra tail of the cable tie.

7) Hang over the dwang of the support installed with the antenna out of the tower platform, use bolts to fix the connecting panel.



2-27

Caution:

Take care to protect the installed jumpers from damage during the course of installing and adjusting the antenna.

When using the compass, keep it away from the tower and other iron and steel objects. Be careful of any geomagnetic abnormality that can interfere in the accurate operation of the compass.

The jumpers should bend in a natural manner. The bending radius should be 20 times longer than the jumper diameter.

The cable ties should be wound in the same way. When cutting the cable ties, there should be a slack of 3~5 mm left lest the cable ties fall off the jumper due to temperature change.

The definitions of the main and diversity of the two interfaces of the 2-diversity directional antennas of the same type should be consistent. For example, the -45 interface is defined as main interface, and the 45 interface is defined as diversity interface.

2.5 Installing Antennas on Roof

2.5.1 Carrying (Hoisting) Antennas and Other Articles

Carry (Hoist) antennas and other articles to the roof. Be careful to keep the articles from collision in the procedure. The method and the caution for hoisting are the same as those for hoisting on the tower platform. For details please refer to the section 2.4.1 Hoisting Antennas.

2.5.2 Installing Omnidirectional Antenna

The installation of the omnidirectional antennas onto the supports on the roof is shown in Figure 2-32.



2-28

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(1) Antenna lightning rod (2) Antenna (3) Fixing clip for the omnidirectional antenna (4) Main supporting post (5) Road (6) Stiffener (7) Roof

Figure 2-32 Installing the omnidirectional antenna onto the support at the roof


The requirements of the isolation degree and the installation interval of the omnidirectional antennas are the same as those for installing the omnidirectional antennas on the tower platform. For details please refer to section 2.4.2 I. Installation requirements. Besides, the following points should also be noted:

Keep away from the defilades to avoid the signal blind area when installing antennas.

If there is no lightning rod on the top of the antenna support, install a lightning rod separately and make sure the distance between omnidirectional antennas and the lightning rod should be not less than 2.5 m. Besides, the antennas should be in the lightning protection coverage 300 downward from the top of the lightning rod.

If there is lightning rod on the top of the antenna support, the distance for hanging over the support should be 1~1.5 m.





2-29

Start


Y

N

Check the verticality of the antenna

Make the waterproof curve for the antenna jumper, bind and lay the jumper

End

Decide the installation location of the antenna

The verticality error ± 1° ?＜

Adjust and fix the antenna again

Tighten up the antenna

Figure 2-33 Procedure of installing the omnidirectional antenna on the roof


1) Decide the installation location of the antenna according to the engineering design drawings.

2) Place the feeding point of the antenna facedown and the sheathing near the main supporting post of the support, then fix the antenna to the fixing bar of the support.

Caution:

The top end of the sheathing should be at the same height as or slightly higher than the support top. The transmission part of the antenna should be higher than the top of the fixing bar. The fixing tightness should be right enough for bearing and wind resistance. Looseness may cause loose connection while too much tension may damage the antenna sheathing



2-30

3) Use an angular tester to check whether the antenna axis is perpendicular to the horizontal plane. If the error is equal to or greater than !1, adjust and re-fasten it.

4) Tighten up the antenna till the antenna cannot be moved by any hand pull or push.

5) Make the waterproof curve of the jumper, lay and bind the jumper along the cross bar of the support using black cable ties, and cut off the extra tail of the cable ties.

Caution:

The jumpers should bend in a natural manner. The bending radius should be 20 times longer than the jumper diameter. The cable ties should be wound in the same way. When cutting the cable ties, there should be a slack of 3~5 mm left lest the cable ties fall off the jumper due to temperature change.

2.5.3 Installing Directional Antenna

The installation is shown in Figure 2-34 and Figure 2-35.

(1)

(2)

(3)

(4)

(5)

(6)

(1) Antenna (2) TTA (3) Cable tie (4) Feeder (5) Stiffener (6) Mat of the supporting post

Figure 2-34 Installing the directional antenna at the roof (without wall, with TTA)



2-31

(1)

(2)

(3)

(4)

(5)

(1) Antenna (2) Cable tie (3) TTA (4) Jumper (5) Feeder

Figure 2-35 Installing the directional antenna at the roof (with wall no shorter than 1200mm and TTA)


The requirements of the isolation degree and the installation interval of the directional antennas are the same as those for installing the directional antennas on the tower platform. For details please refer to section 2.4.3 I. Installation requirements. Besides, the following points should also be noted:

Keep away from the defilades to avoid the signal blind area when installing antennas.

The support must be installed with lightning rod.





2-32

Start


Error of the azimuth angle ≤ 5° ?

N

Adjust the azimuthangle of the antenna

Decide the installation direction of the antenna

Error of the pitch angle ≤ 0.5° ?

Y

N

Make the waterproof curve for the jumper, lay and bind the jumpers

End

YFasten the antenna

Adjust the pitch angle

Figure 2-36 Procedure of installing the directional antenna on the roof


1) Decide the installation direction of the antenna according to the project installation drawings.

2) Fix the antenna onto the main supporting post. The fixing tightness should be right enough for bearing and wind resistance. Looseness may cause loose connection while too much tension may damage the antenna sheathing.

3) Adjust the azimuth angle of the antenna. Determine the azimuth angle using a compass according to the engineering design documents. Normally, sector 1 is in the north. Sector 2 lies in the clockwise 120° direction and sector 3 in the next clockwise 120° direction, as shown in Figure 2-26. By turning the antenna slightly,



2-33

the personnel can adjust the azimuth angle till it satisfies the design index. Usually, the error of the azimuth angel should be [5°.

4) Tighten up the lower fixing clip of the antenna till it cannot be moved by any hand pull or push.

5) Adjust the pitch angle of the antenna. If the mounting hole of each directional antenna has its corresponding pitch angle, the antenna can be installed directly into the mounting hole as shown in Figure 2-27 and Figure 2-28. However, the supporting post should be kept perpendicular to the ground during the installation. For other antennas, the pitch angles are adjusted in the following method:

Decide the pitch angle of the antenna using the angle display, as shown in Figure 2-29 and Figure 2-30.

By turning the antenna slightly, adjust the pitch angle till it satisfies the engineering design index, as shown in Figure 2-31. Usually, the error of the pitch angle is required to be [0.5°.

Tighten up the upper fixing clip of the antenna till it cannot be moved by any hand pull or push.

6) Make the waterproof curve of the antenna jumper, lay and bind the jumpers along the cross bar of the support using the black cable tie, and cut off the extra tail of the cable tie.

Caution:

Take care to protect the installed jumpers from damage during the course of installing and adjusting the antenna.

When using the compass, keep it away from the tower and other iron and steel objects. Be careful of any geomagnetic abnormality that can interfere in the accurate operation of the compass.

The jumpers should bend in a natural manner. The bending radius should be 20 times longer than the jumper diameter.

The cable ties should be wound in the same way. For the cuttings, there should be a slack of 3~5 mm left lest the tape falls off the jumper due to temperature changes.

The definitions of the main and diversity of the two interfaces of the 2-diversity directional antennas of the same type should be consistent. For example, the -45 interface is defined as main interface, and the 45 interface is defined as diversity interface.



2-34

2.6 Installing Tower-top Amplifier

Note:

If it’s no need to install the TTA, skip this section.

2.6.1 General

I. Type of TTA

There are two kinds of TTA, one is single TTA, another is dual TTA. Single TTA is used for omnidirectional NodeB and the one using single polarization antennas. Dual TTA is used for the NodeB using dual polarization antennas.

II. Outline and structure of TTA

The outline and structure of single TTA is shown in Figure 2-37.

Figure 2-37 Outline of single TTA

The outline and structure of dual TTA is shown in Figure 2-38.



2-35

(1) Female connector of DIN type (to antenna) (2) Installation support

(3) Female connector of DIN type (to NodeB) (4) Grounding connector

Figure 2-38 Outline of dual TTA

III. Cable connection relationship of the TTA

Single TTA has two RF connectors and dual TTA has four. All the connectors are of the 7/16 DIN (female) type.

For single TTA, the connector marked “ANT” should be connected to the Rx antenna, and another marked “BTS” to the receiving RF interface (7/16DIN connector) at the NodeB cabinet top through jumper and feeder.

Caution:

As for some TTAs, the two connectors ANT and BTS lie on the different sides, while for others, they are on the same side.



2-36

For dual TTA, the two connectors marked “ANT 1” and “ANT 2” (take the REMEC’s dual TTA for example) should be connected to dual polarization antennas, and another two connectors marked “NODE B 1” and “NODE B 2” to the receiving RF interface (7/16DIN connector) at the NodeB cabinet top through jumper and feeder.

Caution:

Connector “ANT 1” corresponds to the connector “NODEB 1”, while “ANT 2” to “NODE B 2”.

2.6.2 Installing TTA

I. Installation location

The TTA should be installed near the antenna.

For installation on the tower, the TTA should be installed onto the guardrail of the tower platform, as shown in Figure 2-21.

For installation at the roof, the TTA should be installed onto the main supporting post and below the antenna, as shown in Figure 2-34. The TTA can also be installed onto the wall at the roof alternatively, as shown in Figure 2-35.

II. Installation flow

For the installation of the TTA, cooperative efforts are required lest the TTA should fall off the tower or the roof. The installation procedure of single TTA is the same as that of dual TTA. Now take the single TTA for example to introduce the installation procedure.

1) Hoist the TTA together with the accessories onto the tower or the roof. 2) Fix the TTA to the specified location on tower or pole using steel fastening

bracket as shown in Figure 2-39. When using the steel fastening bracket, lead the end without bolt through the holes on the installation support of TTA. Then lead the bracket around the pole and get the end without bolt through the slit on the other end beneath the bolt. Finally, fasten the bolt to fix the TTA on the tower or pole, as shown in Figure 2-40. Or install the TTA on wall using expansion bolts as shown in Figure 2-41.



2-37

Figure 2-39 Steel fastening bracket

(1)

(3)

(2)

(4)

(1) Main supporting post (2) RF interface ANT (3) TTA (4) RF interface BTS

Figure 2-40 Installing the TTA onto the pole

(1)

(2)

(3)

(1) RF interface ANT (2) TTA (3) Explosion bolt

Figure 2-41 Installing the TTA on the wall



2-38

Caution:

For the TTA with connectors on different sides, the connector to the antenna should be extended upward and the connector to NodeB downward. The ground pole is used for grounding. For the TTA with connectors on the same side, both the connector to the antenna and the connector to NodeB should be extended downward.

3) Connect the grounding pole of the TTA to the grounding point securely using grounding cables.

2.6.3 Installing Jumpers of TTA

The “ANT” port connects to the jumper of antenna and the “BTS” port connects to the jumper of feeder. Usually, the jumper between antenna and TTA is 2.5 m long, as shown in Figure 2-42. While the jumper between feeder and TTA is 1.5 m long, as shown in

(1)

(2)

(1) To TTA (2) To the antenna

Figure 2-42 Jumper between the antenna and TTA

(1)

(2)

(1) To the TTA (2) To the feeder

Figure 2-43 Jumper between the TTA and the feeder



2-39

Installation procedure of these two kinds of jumper is as follows.

1) Screw the jumper connector of antenna onto the TTA. 2) Make the waterproof curve of the jumper. The jumpers should bend in a natural

manner. The bending radius should be 20 times longer than the jumper diameter. 3) Bind the jumpers and label them. The label should be attached 100 mm away

from the end of the jumper, as shown in Figure 2-44.

Caution:

For each jumper, only one label is required, as the jumper is usually very short. The cable ties should be wound in the same way. When cutting the cable ties, there should be a slack of 3~5 mm left lest the cable ties fall off the jumper due to temperature change.

(1)

(2)

(3)

(4)

(1) Guardrails on the tower platform (2) TTA (3) Jumper label (4) Waterproof curve of the jumper

Figure 2-44 Appearance of the jumper between the antenna and TTA

4) Screw the jumper connector of feeder onto the TTA, and put the other connector away for feeder.

2.7 Installing Feeder Window

Note:

If there is no need to install the feeder window on site, skip this section.



2-40

2.7.1 Structure

There are two types of feeder windows. One is of the 12-hole type and the other of the 27-hole type. The 12-hole feeder window is used mostly. Figure 2-45 shows the size of it, and Figure 2-46 shows the structure of it.

400170

170

400 170

170

Figure 2-45 Size of the 12-hole feeder window (unit: mm)

(1)

(4)

(3)

(2)

(1) Encapsulating gasket (2) Sealing sleeve (3) Steel hoop (4) Window panel

Figure 2-46 Structure of the 12-hole feeder window

2.7.2 Installing Feeder Window


The position of the feeder window should be close to the cabling rack as much as possible.

The feeder window can be installed on the wall either indoor or outdoor. But make sure that the panel of the feeder window faces outwards.



2-41

If feeders enter the equipment room through the roof, the feeder window should be installed in the roof. Make sure that the panel of the feeder window faces outwards.

II. Installation flow

The description below is based on 12-hole feeder window.

1) Determine the installation location of the feeder window in accordance with the engineering design drawings as well as the size of the window. Mark the hole sites for the expansion bolts and the position of the window on the wall.

2) Make a 250mm×250mm opening in the wall and drill 8 holes for the expansion bolts using a percussion drill, as shown in Figure 2-47.

250

250

Φ 8

Figure 2-47 Mounting holes of the feeder window (unit: mm)

3) Fix the plate of the feeder window using expansion bolts as shown in Figure 2-48.

Caution:

The spring washers and flat washers should be mounted for the expansion bolts, and the flat wash should be placed first and then the spring wash.

Note:

Mount the sealing gasket and gland of the feeder window when leading feeders into the equipment room.



2-42

(1)

(2)

(1) Expansion bolt M8×80 (2) Panel of the feeder window

Figure 2-48 Installation of the feeder window

2.8 Installing Feeders

The feeder installation procedure of indoor NodeB is shown in Figure 2-49.



2-43

Y

NConnect the jumpers between the antenna and TTA

Start

Cut and label the feeders

Hoist and fix the feeders

Connect the jumpers between the antenna and the feeder

TTA included?

Lay, fix and label the feeders and install the lightning protection clip

End

Lead the feeder into the room

Install the lightening arrester of the feeder

Install the jumper

Figure 2-49 Procedure of installing the feeders of indoor NodeB

While the outdoor NodeB has the same feeder installation procedure except that there is no step “Lead the feeder into the room”, for the entire antenna & feeder system is installed out of door.

2.8.1 Cutting Feeders and Attaching Temporary Labels

The feeders can be cut prior to the hoisting. Alternatively, they can also be cut after being hoisted and fixed in position. In the latter case, sufficient feeder should be left for the cutting.

Cutting procedure is as follows:

1) Determine the length of the feeder required in each sector according to the engineering design drawings.



2-44

2) Cut the feeder based on the determined length, and take a slack of 1~2 m. When cutting the feeder, do not bend it and prevent it from being rolled or stepped on by vehicles or pedestrians.

3) Attach the corresponding temporary label to both ends and the middle of the feeder after cutting each piece.

Note:

For information about feeder label, please refer to "B.2 Engineering Label of Feeder" The content of the temporary label is the same as that of the formal engineering label. Please tear

out the temporary labels before binding (plastering) the formal ones.

2.8.2 Hoisting and Fixing Feeders

Caution:

Be careful during the hoisting. No violent hoisting is allowed to avoid damage to the feeder skin.

1) Wrap the feeder end in a piece of gunny cloth (or antistatic bag) after the corresponding connector is completed. Bind the cloth up using the rope or binding tape.

2) Knot the lifting rope round the feeder at the point 0.4 m from the end and tie another knot at the point 4.4 m from the feeder end to prepare for the hoisting, as shown in Figure 2-50. The person on the tower pull up the rope and the person on the ground should keep pulling the rope to avoid any damage to the antenna due to possible collision with the building or with the tower.



2-45

4000

400

(1)

(3)

(2)

(4)

(5)

(1) Feeder connector (2) Wrapped connector (3) Lifting rope (4) Knot of the rope (5) Feeder

Figure 2-50 Protection of the feeder connector (unit: mm)

3) Fix the upper end of the feeder in a proper position by multiple-point fastening lest that the feeder falls from the tower. However, it should not be too close to the antenna or TTA, as shown in Figure 2-51. Based on the different fixing requirements, select the 1-for-3 or 1-for-1 fixing clip, as shown in Figure 2-52 and Figure 2-53.



2-46

(1)

(2)

(3)

(2)

(1)(3)

(1) C-shaped fixing clip (2) Feeder (3) Cabling rack (hexagonal steel)

Figure 2-51 Fixing the upper end of the feeder on the tower

Figure 2-52 1-for-1 Feeder fixing clips



2-47

Figure 2-53 1-for-3 Feeder fixing clips

2.8.3 Connecting Jumpers Between the Antenna and the Feeder

The appearance of the jumper connected between the antenna and the feeder is shown in Figure 2-54. Usually, the jumper is 3.5 m long, as shown in Figure 2-55.

(1) (2)

(3)

(4)

(1) Feeder (2) Metal label of the feeder (3) Encapsulated connector (4) Jumper

Figure 2-54 Appearance of the jumper connected between the antenna and the feeder

Note:

The encapsulation treatment is usually carried out when the installation and the test of the antenna & feeder system are finished. It’s mainly for the purpose to facilitate the replacement of the feeders and jumpers if there is any problem found by means of the antenna & feeder test. Figure 2-54 shows the connection of the jumper and the feeder after the installation and the test of the whole antenna & feeder system.



2-48

(1)

(2)

(1) To the feeder (2) To the antenna

Figure 2-55 Jumper between the antenna and the feeder

Installation procedure:

1) Connect the jumper with the feeder. The jumpers should bend in a natural manner. The bending radius should be 20 times longer than the jumper diameter.

2) Bind the jumpers and label them using metal labels. The label should be attached 100 mm away from the end of the jumper. For each jumper, only one label is required, as the jumper is usually very short.

Caution:

The binding tape should be wound in the same way. For the cuttings, there should be a slack of 3~5 mm left lest the tape should fall off the jumper due to temperature changes.

2.8.4 Connecting the Jumpers Between TTA and the Feeder (if TTA Available)

When the TTA is available, the jumper should be installed between the TTA and the feeder. The installation procedure is as follows.

1) Connect the jumper with the feeder. The jumpers should bend in a natural manner. The bending radius should be 20 times longer than the jumper diameter.

2) Bind the jumpers and label them. The label should be attached 100 mm away from the end of the jumper. For each jumper, only one label is required, as the jumper is usually very short. Figure 2-56 shows the instillation.



2-49

Caution:

The binding tape should be wound in the same way. For the cuttings, there should be a slack of 3~5 mm left lest the tape should fall off the jumper due to temperature changes. The encapsulation treatment is usually carried out when the installation and the test of the antenna & feeder system are finished. It’s mainly for the purpose to facilitate the replacement of the feeders and jumpers if there is any problem found by means of the antenna & feeder test.

(1)

(2)

(3)

(4)

(1) Feeder (2) Tower guardrails (3) Jumper (4) TTA

Figure 2-56 Appearance of the jumper connected between the TTA and the feeder

2.8.5 Laying and Fixing Feeders

I. Layout principles

The minimum bending radius of the feeder should be 20 times longer than the feeder diameter.

Feeders should not cross each other when running along the cabling rack or down the tower. The feeders from the antenna to the place where they are led into the equipment room should be laid in good order.

The layout of feeders should be conducted from top to bottom, and make sure to put the feeders in order and fix them with fixing clips while laying the feeders.

The feeder fixing clip should be mounted every 2 m or so along the tower or the cabling rack. Based on the actual requirements, select the 1-for-3 or 1-for-2 or 1-for-1fixing clip, as shown in Figure 2-57, Figure 2-58 and Figure 2-59.



2-50

Figure 2-57 Fixing the feeders on the tower (using the 1-for-3 fixing clip)

Figure 2-58 Fixing the feeders on the tower (using the 1-for-2 fixing clip)



2-51

(1)

(2)

(3)

(1) Spacing between the feeder fixing clips (2) Feeder fixing clip (3) Feeder window

Figure 2-59 Laying the feeder from the tower top to the window

Feeder fixing clips should be spaced regularly and oriented in the same direction. When laying feeders at the roof, place the feeders in the corresponding feeder

fixing clips according to the names on the feeder labels. Do not fasten them until they are all laid neatly. The fixing clips should be strictly perpendicular to the feeders. Feeders in the same clip should be parallel to each other, as shown in Figure 2-60.



2-52

(1)

(2)

(3)

(4)

(1) Feeder (2) Cabling rack (3) Feeder fixing clip (4) Feeder well at the roof

Figure 2-60 Feeders in the fixing clips

When the feeders from the roof enter into the equipment room along the wall, the cabling ladder is required if the cabling distance is longer than 1 m. The feeders should be fixed to the cabling ladder using fixing clips, as shown in Figure 2-61.

(1) Feeder (2) Roof (3) Feeder fixing clip (4) Outdoor cabling rack(5)Outdoor grounding strip (6) To the outdoor lightning protection grounding cables (7) Feeder window

Figure 2-61 Laying the feeder from the roof to the feeder window



2-53

If feeders enter the equipment room through the feeder window in the roof, keep the window strictly encapsulated, as shown in Figure 2-62.

(1)

(2)

(3)

(4)

(1) Cabling rack at the roof (2) Roof (3) Feeder window (4)Feeder

Figure 2-62 Leading the feeder into the equipment room through the roof

II. Laying and fixing sequence

1) Design the feeder arrangement based on the sector requirements in the engineering-design document, and determine the plan on the feeder arrangement and lead-in. Normally, the feeders in one sector are arranged in one column or row. The arrangement sequences of the feeders in each column or row should be kept consistent with each other.

2) Arrange the feeders according to the designed sequence. 3) Fix the feeders onto the tower or the cabling rack while arranging them neatly.

Meanwhile, mount the feeder grounding clips and replace the temporary labels with formal metal labels.

Caution:

A Metallic label should be bound to a feeder using a black tie at: 1) The point 200 mm away from the lower connector under the outdoor antenna. 2) The point 200~300 mm down the tower platform. 3) The point 200 mm away from the outside of the feeder window. 4) The bent. When binding labels to the feeders, make sure that they are neatly laid out. All labels should face the same direction, and so should the cable ties. When cutting off the extra part of a cable tie, make sure to leave 5~10 mm of tail on the cable tie.



2-54

III. Connector processing

If a connector is not completely made in one day or if a completed connector is not applied to the connection of the jumper and feeder soon, the connector should go through simple waterproof treatment.

If the installation of the antenna & feeder system can’t be completed in one day, the outdoor connectors or exposed ends of feeders should go through simple waterproof treatment. All the outdoor connectors should go through the waterproof and capsulation treatment after the installation and the test of the antenna & feeder system.

2.8.6 Grounding Feeders

I. Installation locations of feeder grounding clips

The feeder grounding clips should be installed simultaneously with the feeder layout. Usually, each feeder should be grounded at three points.

When antennas are installed on the tower, each feeder should be grounded at:

The point of the feeder within 1 m from the feeder connector The point of the feeder at the bottom of the tower The point of the feeder outside the feeder window in which the feeder is led (as

close to the window as possible).

When antennas are installed on the roof, each feeder should be grounded at:

the point of the feeder within 1 m from the feeder connector. At the place where the feeder is to be led down from the roof. At the point of the feeder outside the feeder window in which the feeder is led (as

close to the window as possible).

However, when the length of a feeder is more than 60 m, feeder grounding clips should be applied along the feeder. Usually, the grounding clips should be mounted every 20 m. And if the feeder should be laid at the roof prior to entering into the equipment room and the length to be laid at the roof exceeds 20 m, a feeder grounding clip should be applied at the roof.

Figure 2-63 and Figure 2-64 are the illustrations for feeder grounding.



2-55

(1)

(2)

(3)

(4)

(5)

(6)(7)

(8)

(1) Grounding at the top of the feeder

(2) Grounding in the middle of the feeder

(3) Grounding at the bottom of the feeder

(4) Grounding at the place where the feeder is to enter into the equipment room

(5) Feeder window (6) To the outdoor lightning protection grounding cables

(7) Outdoor grounding copper bar (8) Tower grounding bar

Figure 2-63 Lightning protection grounding of the feeder (for the antenna installed on the tower)



2-56

(1) Feeder (2) Roof (3) Feeder fixing clip (4) Outdoor cabling rack(5) Outdoor grounding bar

(6) Outdoor lightning protection grounding cable (7) Feeder window

Figure 2-64 Lightning protection grounding of the feeder down the cabling ladder

II. Installation procedure of feeder grounding clips

1) Prepare the tools, unpack the packing box of the feeder grounding clips and get all the parts and accessories handy at a clean place or on a piece of paper.

2) Determine the installation location of the feeder grounding clip. According to the clip size, strip the feeder skin at the determined location and expose the outer conductor, as shown in 1, 2 and 3 of Figure 2-65.



2-57

1 2 3

4 5 6

Figure 2-65 Installation of the feeder grounding clips

3) Wrap the copper sheet of the feeder grounding clip around the conductor of the feeder tight and screw the fixing bar using the straight screwdriver to force against the grounding cable of the feeder, as shown in 4, 5 and 6 of Figure 2-65.

Caution:

The grounding cable of the clip should be led downward and the angle resulting from the grounding cable and the feeder should be no larger than 150. Make sure the feeder grounding clip bends properly. The proper leading direction of the grounding cable is shown in the upper part of Figure 2-66.



2-58

(1)

(2)

(1) Copper sheet (2) Grounding cable

Figure 2-66 Leading direction of the grounding cable of the feeder grounding clip

4) Implement waterproof and encapsulation treatment to the grounding point. See "2.10.1 Waterproof Treatment for Outdoor Connectors".

5) Connect the grounding cable of the grounding clip to the grounding part of the cabling rack securely.

Note:

When laying the feeders along the tower, if there are grounding points for the grounding clips on the tower body, connect the grounding cable of the grounding clip directly to the steel plate of the tower, as shown in Figure 2-67.

If there is no grounding point on the tower body, use the base of the feeder fixing clip to connect the grounding cables. In this case, fix the base onto the tower or the outdoor cabling rack and then connect the grounding cable to the base.

When the feeders are laid on the outdoor cabling rack, the grounding cables can be connected to the well-grounded cabling rack.



2-59

Caution:

The antirusting paint around the grounding part of the cabling rack should be removed prior to the connection and a new coat of antirusting paint should be applied after the connection around the lug, nut and cabling racks. Besides, the bare wire and the lug handle should be wrapped with insulating tape.

Figure 2-67 Connecting the grounding cable of the feeder grounding clip to the steel plate of the tower

6) The grounding cable of the feeder grounding clips that on the outdoor feeders should be neatly led to the outdoor grounding bar, as shown in Figure 2-68. If no outdoor grounding bar is available, they can be connected to the well-grounded outdoor cabling rack or to the lightning protection grounding net of the building, as shown in Figure 2-69.

Caution:

The grounding cable as well as the grounding connector should go through the antirust treatment. The lug, nut and cabling racks should be coated with antirusting paint. The bare wire and the lug handle should be wrapped with insulating tape.



2-60

Figure 2-68 Grounding when the feeder does not enter the equipment room (grounding bar available)

Figure 2-69 Grounding when the feeder does not enter the equipment room (grounding bar unavailable)

2.8.7 Leading Feeders into Equipment Room

Note:

This step is needed only for BTS3812 and BTS3806. For the entire antenna & feeder system of BTS3806A is installed out of door, there is no need to execute this step.



2-61

Generally, the feeder window installed in the NodeB equipment room is of 12-hole type. Therefore, this section only describes how to lead the feeders into the equipment room through the 12-hole feeder window. As for the 27-hole feeder window, take this section for reference.

I. Principles of arrangement

There are 4 large openings in a 12-hole feeder window. And each opening is divided into 3 holes, each for one feeder.

The feeders should be laid out in clockwise or counter clockwise according to their numbers in the three small holes of the same opening.

The layout of the feeders should facilitate expansion, since the layout in the feeder window is not allowed to be changed during expansion; instead, it is only possible to add feeders in the feeder window or to change the jumper connection on the set-top.

The feeder layout in the feeder window should facilitate the layout on the cabling rack and the connection on the set top. The feeders should be in parallel with no intertwining.

The feeder layout of BTS3812 is the same as that of BTS3806, see Figure 2-70 and Figure 2-71 for the detail.

ANT_05

ANT_04

ANT_08

ANT_09

ANT_00ANT_01

ANT_02

ANT_03

ANT_06

ANT_07

ANT_11ANT_10

(ANT_00) ANT_0A(ANT_01) ANT_0B

(ANT_02) ANT_1A (ANT_03) ANT_1B

(ANT_04) ANT_2A(ANT_05) ANT_2B

ANT_5A(ANT_13)ANT_5B(ANT_12)



ANT_3B (ANT_06)ANT_3A (ANT_07)



ANT_2A(ANT_06)ANT_2B(ANT_07) ANT_3B(ANT_08)


ANT_4A(ANT_11)

Main Cabinet Secondary Cabinet

Wall

Wall

ANT_00

ANT_01

ANT_04

ANT_05

ANT_08

ANT_09

ANT_02

ANT_03

ANT_06

ANT_07

ANT_10

ANT_11

Figure 2-70 Feeder layout for BTS3812 in all kinds of conditions



2-62

ANT_05

ANT_04

ANT_08

ANT_09

ANT_00ANT_01

ANT_02

ANT_03

ANT_06

ANT_07

ANT_11ANT_10

(ANT_00)(ANT_01)

(ANT_02)

(ANT_03)(ANT_04)

(ANT_05) (ANT_11)

(ANT_10)

(ANT_09)(ANT_08)

(ANT_07)(ANT_06)

BTS3806

Wall

Wall

ANT_00

ANT_01

ANT_04

ANT_05

ANT_08

ANT_09

ANT_02

ANT_03

ANT_06

ANT_07

ANT_10

ANT_11

ANT_0AANT_0B

ANT_1AANT_1B

ANT_2AANT_2B RX_ANT_2B

RX_ANT_2ARX_ANT_1B

RX_ANT_1ARX_ANT_0B

RX_ANT_0A

Figure 2-71 Feeder layout for BTS3806 in all kinds of conditions

Note:

In Figure 2-70 and Figure 2-71, the notes on the top of the cabinet is the screen-silks of antenna & feeder ports, and the information in the brackets is the contents on the feeder label.

The notes on the feeder windows are the contents on the labels of the feeders routed through the holes of the feeder window.

The left part in the figure illustrates the feeder layout when the front of the feeder window is vertical to the front of the cabinet, and the right part illustrates the feeder layout when the front of the feeder window is vertical to the front of the cabinet.

In any configuration case, the feeders are to be routed to the feeder window holes with their corresponding labels according to the cabinet top silk-screens and the feeder labels.



2-63

II. Procedure

1) Lead each feeder into the equipment room through the feeder window. During the operation, some personnel should provide cooperation in the room lest the feeders damage the indoor equipment.

2) Make the waterproof curves of the feeders outside the feeder window. 3) Mount the sealing gasket and sleeve for the feeder window. Make sure the glue-

adding holes in the sealing sleeve face upward. 4) Cut feeders to the accurate length based on the installation location of the

lightning arrester determined by the design requirements. 5) Make the indoor feeder connectors. 6) Attach the label at the point 200mm away from the connector.

Caution:

When the feeder window and the indoor cabling racks are not in the same horizontal, bend the feeders in a natural manner, and the minimum bending radius of the feeder should be 20 times longer than the feeder diameter or even longer.

2.8.8 Installing Lightning Arresters for Feeders

The type of the lightning arrester for outdoor NodeB is the same as that for indoor NodeB. The outline of the lightning arrester is shown in Figure 2-72.

(1)

(2)

(1) Lightning protection end (2) Equipment end

Figure 2-72 Lightning arrester for TX and RX



2-64

I. Install the lighting arresters of indoor NodeB

As the feeders are required to be cut off at the point 800 ~ 1500 mm away from the place where they enter into the room, the lightning arresters can be located. Install them by the engineering design drawings.

All lightning arresters should be oriented in the same direction and securely connected. The lightning protection end of the lightning arrester should be connected to the feeder and the equipment end to the set-top jumper.

Installation procedure:

1) Check if the type of the lightning arrester is fit for its application. 2) Connect the feeder with the lightning protection end of the lightning arrester. 3) Connect the equipment end of the lightning arrester with the jumper leaded out

from the top of the cabinet. 4) Connect the lightning arrester with a grounding cable, and then connect the

cable to the grounding bar especially for the lightning arrester, as shown in Figure 2-73. The core diameter of the grounding cable should be no less than 6 mm2.

Grounding Bar for Lightening Arrester

Protection Grounding Bar in Equipment Room

Lightening Arrester

BTS3812

Protection Grounding Cable

Feeder

Outdoor Grounding BarEquipment

Room

Feeder

Feeder

Grounding Cables

Grounding Cables

Figure 2-73 Grounding the lightning arrester

5) Connect the grounding bar for the lightning arrester with a grounding cable, and then connect the cable to the outdoor grounding bar, as shown in Figure 2-73. The radius of the grounding cable should be no less than 16 mm2.

Note:

The grounding bar for the lightning arrester can be installed on the wall and the cabling rack.



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II. Install the lightning arresters of outdoor NodeB

The Installation procedure is as follows:

1) Check if the type of the lightning arrester is fit for its application. 2) Connect the feeder with the lightning protection end of the lightning arrester. 3) Connect the equipment end of the lightning arrester with the jumper leaded out

from the bottom of the cabinet. 4) Connect the lightning arrester with a grounding cable, and then connect the

cable to the grounding bar especially for the lightning arrester. The core diameter of the grounding cable should be no less than 6 mm2.

5) Connect the grounding bar for the lightning arrester with a grounding cable, and then connect the cable to the outdoor grounding bar. The radius of the grounding cable should be no less than 16 mm2.

6) Apply the waterproof and encapsulation treatment to the lightning arresters and the connectors. For detail, please refer to “2.10.1 Waterproof Treatment for Outdoor Connectors”.

2.8.9 Installing Indoor Jumpers

Note:

This step is needed only for BTS3812 and BTS3806. As for BTS3806A, this subsection can be skipped.

The connectors of the indoor jumpers (1/2”) are usually made on site.

I. Installation requirements for jumpers

The jumpers between the cabinet top and the cabling rack should be laid in parallel.

When the jumpers are required to go through the cabling rack to the upper part of the cabling rack, they should not be laid outside the rack.

Bend the jumpers in a natural manner and the bending radius should be 20 times longer than the jumper diameter.

The jumpers between the cabinet top and the cabling rack should be tensed to a proper tightness.

The jumpers should be bound onto all crossbars of the cabling rack. The cable ties should be oriented in the same direction and be cut smoothly.

All indoor jumpers should be labeled. The labels should be attached at the places 100 mm away from both ends of the jumper.

II. Installing jumpers at the cabinet top

1) Cut the jumper to a proper length according to the actual distribution route.



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2) Make the set-top connectors (7/16DIN male) and the N-type connectors to the lightning arrester following the instruction delivered with the components.

3) Connect one end of the jumper to the corresponding connector of the antenna & feeder jumper at the cabinet top according to the NodeB configuration.

Note:

The jumper port silk-screens on the cabinet top of BTS3812 and BTS3806 are shown in Figure 2-75 and Figure 2-76. The correspondence between the jumper port silk-screens and the engineering labels in different configuration modes is listed in Table 2-1 and Table 2-2.

4) Lay and bind jumpers through the cabling rack to the lightning arrester, as shown in Figure 2-74.

5) Connect another end to the equipment end of the corresponding lightning arrester.

6) Label the jumpers.

(1)

(2)

(3)(4)

(5)

(1) Cabinet (2) Cabling rack (3) Cable tie (4) Feeder (5) Label

Figure 2-74 Layout of the indoor jumpers



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ANT_0A

ANT_0B

ANT_1A

ANT_1B

ANT_2A

ANT_2B

ANT_5A

ANT_5B

ANT_4A

ANT_4B

ANT_3A

ANT_3B

Figure 2-75 Silk-screen of the outlets at the BTS3812 cabinet top

Installation Manual –Antenna & Feeder System Installation WCDMA NodeB Chapter 2 Installing NodeB Antenna & Feeder System

2-68

Table 2-1 Correspondence between the jumper port silk-screens and the engineering labels in different configuration modes (BTS3812)

Label

Cabinet

Silk-screen

Omni-directional

3-sector directional

6-sector directional ( 2

TRXs)

6-sector directional (>2

TRXs)

4-antenna receiving diversity

omni-directional ( 2 TRXs)


omni-directional (>2 TRXs)


directional ( 2 TRXs)


directional (>2 TRXs)

OTSR

ANT_0A ANT_00 ANT_00 ANT_00 ANT_00 ANT_00 ANT_00 ANT_00 ANT_00 ANT_00

ANT_0B ANT_01 ANT_01

1-sector

ANT_01

1-sector

ANT_01

1-sector

ANT_01 ANT_01 ANT_01 ANT_01

1-sector

ANT_01

ANT_1A ANT_02 ANT_02

ANT_1B ANT_03

2-sector

ANT_03

1-sector

ANT_2A ANT_04 ANT_04 ANT_04 ANT_04 ANT_04 ANT_04 ANT_04 ANT_04

ANT_2B ANT_05

2-sector

ANT_05

3-sector

ANT_05

3-sector

ANT_05 ANT_05 ANT_05 ANT_05

2-sector

ANT_05


ANT_3B ANT_07

4-sector

ANT_07

2-sector

ANT_4A ANT_08 ANT_08 ANT_08 ANT_08 ANT_08 ANT_08

ANT_4B ANT_09

3-sector

ANT_09

5-sector

ANT_09

5-sector

ANT_09 ANT_09

3-sector

ANT_09

Primary

cabinet

ANT_5A ANT_10 6- ANT_10

3-sector

Installation Manual –Antenna & Feeder System Installation WCDMA NodeB Chapter 2 Installing NodeB Antenna & Feeder System

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Label

Cabinet

Silk-screen

Omni-directional


6-sector directional ( 2

TRXs)

6-sector directional (>2

TRXs)


omni-directional ( 2 TRXs)


omni-directional (>2 TRXs)


directional ( 2 TRXs)


directional (>2 TRXs)

OTSR

ANT_5B ANT_11 sector

ANT_11


ANT_0B ANT_03

2-sector

ANT_03

1-sector

ANT_1A

ANT_1B


ANT_2B ANT_07

4-sector

ANT_07

2-sector

ANT_3A

ANT_3B


ANT_4B ANT_11

6-sector

ANT_11

3-sector

ANT_5A

Secondary

cabinet

ANT_5B

Installation Manual –Antenna & Feeder System InstallationWCDMA NodeB


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ANT_0A

ANT_0B

ANT_1A

ANT_1B

ANT_2A

ANT_2B

RX_ANT_0A

RX_ANT_0B

RX_ANT_1A

RX_ANT_1B

RX_ANT_2A

RX_ANT_2B

Figure 2-76 Silk-screen of the outlets at the BTS3806 cabinet top

Table 2-2 Correspondence between the jumper port silk-screens and the engineering labels in different configuration modes (BTS3812)

Label

Silk-screen Omni-directional


4-antenna receiving

diversity omni-directional


directional

OTSR

ANT_0A ANT_00 ANT_00 ANT_00 ANT_00 ANT_00

ANT_0B ANT_01 ANT_01 ANT_01 ANT_01 ANT_01

ANT_1A ANT_02 ANT_02 ANT_02

ANT_1B ANT_03 ANT_03 ANT_03

ANT_2A ANT_04 ANT_04 ANT_04

ANT_2B ANT_05 ANT_05 ANT_05

RX_ANT_0A ANT_06 ANT_06

RX_ANT_0B ANT_07 ANT_07

RX_ANT_1A ANT_08

RX_ANT_1B ANT_09

RX_ANT_2A ANT_10

RX_ANT_2B ANT_11



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Note:

If the Rx diversity is not used, A indicates Rx/Tx sharing channel and B indicates Rx diversity channel.

If the Rx diversity is used, A indicates the main TRX channel and B indicates secondary TRX channel.

2.9 Testing Antenna & Feeder System

Measure the antenna & feeder VSWR on the jumpers at cabinet top using the radio analyzer. Normally, the antenna VSWR should be less than 1.5 (including when there is TTA in the system). However, the VSWR of the N-type male connector on the jumper (1/4”) between the antenna & feeder system and the NodeB duplexer output port should be less than 1.3. (The corresponding return loss is 18 dB).

If the VSWR is greater than 1.5, it indicates there are problems in the antenna & feeder system. In this case, measure the VSWR hop by hop or measure the return loss of the entire system to locate the problems.

2.10 Waterproof Treatment for Connectors and Feeder Window

The waterproof and encapsulation treatment should be applied immediately after the installation and the test of the antenna & feeder system to the outdoor connectors and the feeder window. The outdoor connectors include those between jumper and TTA and those between jumper and feeder.

2.10.1 Waterproof Treatment for Outdoor Connectors

After the installation of the entire antenna feeder system and passing the antenna feeder test, it is necessary to take waterproof and encapsulation treatment to the outdoor jumpers, TTA jumpers and feeder connectors.

There are two types of waterproof tape needed: waterproof insulation tape and PVC tape, as shown in Figure 2-77 and Figure 2-78.



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Figure 2-77 Waterproof insulation tape

Figure 2-78 PVC tape

Note:

When wrapping up a connector, please wrap up the connector with a layer of insulation tape before wrapping with the semi conductive adhesive tape for the convenience of removing the tape.

Below is the procedure of waterproof and encapsulation treatment:

1) Clean the feeder connectors or feeder grounding clamp; 2) Stick the end of the waterproof insulation tape to the feeder at the point 2~5cm

from the connector or grounding clamp; 3) Stretch the tape until it is 3/4~1/2 as wide as its original shape. Make sure that

the stretched width is at least 1/2 of the original width, otherwise over-stretching may damage the molecular structure of the tape and lower its reliability). Wrap up the feeder spirally upward while maintaining this stretching strength. Make sure that the overlapping area of adjacent tape layers is 1/2 of the stretched width, as shown in Figure 2-79.



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Caution:

Make sure that the stretched width is at least 1/2 of the original width, otherwise over-stretching may damage the molecular structure of the tape and lower its reliability

Figure 2-79 Wrapping up the feeder with waterproof insulation tape

4) When wrapping to the point 2~5cm another connector or grounding clamp, reverse the direction to let the wrapping goes back towards starting point. When it reaches the starting point, reverse the direction one more time. In this way, the feeder is wrapped up with three layers of waterproof insulation tape;

5) After wrapping, squeeze the tape stuck to the feeder to make sure no air remains between tape layers;

6) When the wrapping of the waterproof insulation tape is done, it is necessary to wrap it up with PVC tape to prevent the wearing and aging of the waterproof insulation tape;

7) The wrapping of PVC tape is similar to that of waterproof insulation tape. Start wrapping spirally upward with 1/2 width of overlapping between adjacent layers. Reserve the wrapping direction twice to make three-layer cover. Make sure to maintain the stretching strength. The feeder treated with waterproof and encapsulation treatment is shown in Figure 2-80.



2-74

Figure 2-80 Feeder with waterproof and encapsulation treatment

2.10.2 Waterproof Treatment for Feeder Window

1) Put the two semicircle sealing sleeves around the outside of the big holes in the feeder window.

2) Put the two steel hoops in the two grooves of the sealing sleeves, and tighten the screws on the hoop using a screwdriver.

3) Inject the glass cement to the gap around the feeder window. 4) Plug the holes unused with special stoppers.

The feeder window that has gone through the waterproof treatment is shown in Figure 2-81.

Figure 2-81 The feeder window going through the waterproof treatment



2-75

Note:

If the feeder enters into the equipment room through a glass window, the treating methods and procedure are as follows:

Remove the glass, and cut an opening of a proper size round the corner of the glass. Protect the cutting position using the rubber or adhesive tape. Wrap the feeder to be led through

the opening with the adhesive tape lest that the opening edge scratch the feeder. Lead in the feeder through the glass window. Make the waterproof treatment by sealing the interface between the feeder and the glass using the

glass cement.


Chapter 3 Installing GPS Antenna & Feeder System

3-1


3.1 Overview

The installation of GPS (Global Position System) antenna & feeder system includes antenna stand installation, GPS antenna installation, lightning arrester installation and feeder layout. Since some operations are the same as those of installation of NodeB antenna and feeder system, this chapter will cover the different part only.

3.1.1 Installation Procedure

The installation procedure of the GPS antenna & feeder system is shown in Figure 3-1.



3-2

End

Install the antenna

Install and lay the outdoor feeder, ground the feeder, bind the engineering labels

Start

Determine the installation position of the antenna

Install the antenna stand

Lead the feeder into the equipment room

Check the feeder

Connect the antenna and jumper

Install the lightning arrester for the antenna

Install the lightning arrester for the equipment

Figure 3-1 Installation procedure of the GPS antenna & feeder system

Note:

The installation of GPS antenna and feeder system can be performed simultaneously with that of NodeB antenna and feeder system. The installation can be adjusted according to the actual configuration and environment.

3.1.2 Requirements for Antenna Installation Location

The antenna should be installed in an open place. There should be no tall buildings nearby blocking the vision. It should be as far as possible from the small auxiliary structures at the roof. The larger area the GPS antenna occupies,



3-3

the better result will be achieved. The upward look angle of the antenna should be larger than 90°. See Figure 3-2.

(2)

(1) (1)

90

(1) Surrounding buildings or other obstacle (2) GPS antenna

Figure 3-2 Installing antenna

The antenna should not be close to the radiation from the front of the main lobe of the mobile communication antenna. In addition, it should not be located under the microwave signal from microwave antenna, nor under the high voltage cable and nor under the intense radiation of television tower.

For lightning protection purpose, the antenna should be installed in the center of the rooftop. Be sure not to install the antenna at the corner of the roof, as the corner is the most possibly subject to the lightning strike.

The antenna should be installed at the place where there is special lightning rod or similar facilities such as the tower for telecommunication around. And the antenna should be located within the effective protection range of the lightning rod. That is, the included angle between the vertical direction and the straight line between the GPS antenna and the top of lightning rod should be less than 30°. If there is no tower or lightning rod around, it is necessary to install one meeting the lightning protection requirement. The horizontal distance from the lightning rod to the antenna should be within 2~3m. And the height of the lightning rod should be more than 0.5m higher than that of GPS antenna receiving end.

3.2 Installing Antenna Stand

3.2.1 Installation Mode and Requirements for Antenna Stand

The GPS antenna stand can be installed on the cement base, the parapet at the roof or the iron tower. The requirements for the three installation methods are as follows.



3-4

I. Requirements for the installation on a cement base

The dimensions (length × width × height) of the cement base should be 500 mm × 500 mm × 200 mm.

The cement base should be made of concrete and reinforcing steel bars. It should be strong enough for mounting the expansion bolts.

The upper surface of the cement base should be as level as possible so that the antenna stand pole can stand upright.

If the customer permits and the roof has the reliable waterproof capability, the installation position on the roof ground should be roughened to fortify joint between the cement base and the roof ground.

Take the ambient temperature into consideration during the course of making the base. Especially in the cold region, the cement base should be prepared beforehand lest that the project is prolonged due to the cold weather in which the construction is not allowed.

II. Requirements for the installation on the parapet

The location and surroundings of the parapet should meet the requirements specified in “3.1.2 Requirements for Antenna Installation Location”.

The installation should not affect the appearance of the building, so the parapet should be built in an unnoticeable place.

The parapet should be strong and high enough for drilling so that the expansion bolts can be mounted.

III. Requirements for the installation on the iron tower

The GPS antenna should be installed at the bottom of the iron tower. The farther it is from the high-power antenna at the iron tower top, the better effect can be achieved.

The antenna should be fixed using the antenna stand to avoid the interference of the iron tower body.

There should be no obstacle nearby affecting the receiving effect.

3.2.2 Installing Antenna Stand on Iron Tower

The antenna stand on the tower is shown in Figure 3-3.



3-5

(1) Adjustable clamp (2) Fixed clamp (3) Stand (4) Bolt M8

Figure 3-3 Structure of the antenna stand on the tower

The installation procedure is as follows:

1) Loosen the bolts on the fixed clamps and take down the adjustable clamps. 2) Place the antenna stand in a suitable position on the tower, and make sure that

the tower angle iron is between the fixed clamp and the adjustable clamp. 3) Fix the stand on the tower using bolts, flat washers, spring washers and nuts. 4) Insert the antenna stand pole into the stand and align the fixing holes on the

antenna stand pole with those on the stand. And then fix the pole on the stand.

Figure 3-4 illustrates the finished installation of antenna stand on the tower.



3-6

Figure 3-4 Installed antenna support on tower

3.2.3 Installing Antenna Stand on Roof

Figure 3-5 illustrates the finished installation of antenna stand on building roof. The diameter of its metal base is 300 mm and that of the stand mounting hole on the base is 11 mm. This type of stand can be installed both on cement base and parapet on roof. If it is installed on the parapet, the metal base should be removed from the stand, and use the anchor ear instead to fix the stand.



3-7

M1M2 (4 bolt holes)

M3

B1 (2 bolts)

M2

M1M3

M1M2 (4 bolt holes)

M3

B1 (2 bolts)

M2

M1M3

Figure 3-5 Structure of GPS antenna stand

I. Installation on cement base

The procedure of installation on cement base is as follows.

1) Place the metal base of the antenna stand on the cement base, align the centers of the two bases and mark the positions of installation holes on the cement base.

2) Drill holes according to the marks using the drill bit of 12. 3) Fix the antenna stand base on the cement base using expansion bolts. In order

to keep the antenna pole stand upright, try to keep the metal base level. The levelness can be adjusted using washers.

4) Insert the antenna stand pole into the base, and then check whether it stands upright. The included angle between the stand pole and the upright direction should be smaller than 5°.



3-8

Caution:

The cement base should be made before equipment installation.

II. Installation on parapet

When install the stand on parapet, the installation procedure is as follows.

1) Remove the base of the stand if there is any. 2) Stand the antenna stand pole, with the receiving end pointing upward, and then

hold the pole upright against the parapet. Mark the positions of the holes on the parapet. In order to ensure stability and reliability, at least two anchor ears should be used to fix the pole. The distance between the two anchor ears should not be less than 400mm, and the positions of the upper and lower anchor ears should be symmetrical on the wall.

3) Use the 12 drill bit to drill holes on the marks. 4) Add rubber washers when using the anchor ears to fix the antenna pole to

improve reliability. 5) After installation, try shaking and turning the pole to confirm the reliability of the

installation. Check whether the antenna stands upright by checking whether the included angle between the pole and the upright direction is less than 5°.

3.3 Installing GPS Antenna

I. Antenna Appearance

The NodeB adopts UTONCORE GPS antenna. See Figure 3-6.

Figure 3-6 GPS antenna of Type UNONCORE


The installation procedure of the UNONCORE GPS antenna is as follows.



3-9

1) Remove the bolt at the bottom of the antenna and apply the rubber washer (an accessory of the antenna) to the bottom.

2) Insert the antenna into the position "M3" in Figure 3-5. 3) Add the metal flat washer (an accessory of the antenna) to the jumper connector

at the bottom of the antenna with the washer head against the bottom of "M3".

4) Connect the antenna and jumper, tighten up the connector. 5) Tighten the four bolts to fix the GPS antenna on the antenna stand.

Caution:

The connecting points of the antenna should be processed with waterproof treatment. See “2.10.1 Waterproof Treatment for Outdoor Connectors”.

After the installation, paint the antenna stand with rustproof paint, especially the bolts, expansion bolts and the places around the bolt holes.

3.4 Installing Lightning Arrester and Feeder

The installation procedure of lightning arrester and feeder is shown in Figure 3-7.

Start

End

Install and lay out feeder, and install feeder ground clip

Install the lightning arrester for GPS satellite card

Figure 3-7 Installation procedure of lightning arrester and feeder

3.4.1 Installing Lightning Arrester

The lightning arrester is used to protect the GPS satellite card in the cabinet.

Currently there are two types of lightning arresters: iS-MR50LNZ+6 and DGXZ+6NFNM-A. The installation procedures for each type are described below.



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I. iS-MR50LNZ+6

Figure 3-8 illustrates the appearance of iS-MR50LNZ+6 lightning arresters

(1)

(1) PROTECTED end

Figure 3-8 Appearance of Type iS-MR50LNZ+6 lightning arrester

It is necessary to pay attention to the following points during installation:

The "PROTECTED" end of the lightning arrester should be connected to the port GPS_0 or GPS_1 on the cabinet top.

The lightning arrester for GPS satellite card does not need to be grounded.

II. DGXZ+6NFNM-A

Figure 3-9 illustrates the appearance of DGXZ+6NFNM-A lightning arrester.

Figure 3-9 Appearance of DGXZ+6NFNM-A lightning arrester

It is necessary to pay attention to the following points during installation:

The two connectors of DGXZ+6NFNM-A lightning arrester are respectively male and female. The male connector of the lightning arrester should be connected to the port GPS_0 or GPS_1 on the cabinet top.



3-11

The lightning arrester does not need to be grounded.

Caution:

When the distance from the antenna to the NodeB is longer than 100 m, 7/8 feeder layout mode should be adopted so as to lower signal loss. In this case, one end of the lightning arrester is connected to the GPS port on the cabinet top, while the other end is connected to the 7/8 feeder via jumper.

3.4.2 Binding Jumpers

Jumpers should be bound to the antenna stand pole using cable ties. The cable ties should be fastened, and their spacing should be 200 mm. The direction of the cable tie heads should be consistent. When cutting the extra tail of a cable tie, make sure that there is 3~5 mm of extra left lest the cable ties fall off due to temperature change. The cutting section should be flat.

3.4.3 Laying out Feeders

Before feeder layout, it is necessary to check the environment including the tower and roof, and determine the layout plan and layout procedure as per the engineer drawing.

The feeder route from the tower to the equipment room where cabinet equipment is located should be clear and easy for fixing the feeders. It should meet the cabling requirements of the equipment room, and has reliable rainproof and anticorrosive measures.

The feeder should form a downward curve before entering the equipment room. The vertical distance between the lowest point of the curve and the feeder entrance should be at least 200mm to prevent rain water from entering the equipment room.

During feeder layout, the unused feeder connectors should be protected with reliable material (e.g. package bag of board) to avoid damage.

When the antenna is installed on building roof, the feeder should be fixed with plastic clips attached with steel nails along the root of the wall on the roof. The spacing of the clips should be 1m. The direction of the clip heads should be regularly alternate. If the two feeders meet, they should be bound without intertwinement and curve

When routing the feeder, make sure to uncoil the cable coil first to prevent bending the feeder. If bending cannot be avoided, the curve radius should not be less than minimum radius allowed, so as to avoid damaging the feeder.



3-12

Caution:

When the distance from the antenna to the NodeB is greater than 100 m, the 7/8 feeder should be adopted so as to minimize signal loss, otherwise the 1/2 feeder should be selected.

3.4.4 Grounding Feeder

Feeder routing and GPS feeder grounding is conducted simultaneously. The following parts describe feeder grounding in different installation modes.

I. GPS antenna installed on tower

A grounding clip should be installed within 1m around the antenna lightning arrester, and the grounding cable is connected to the iron tower;

The feeder is grounded at the root of the tower. Grounding point should be 0.5~1m above the turn where the feeder is routed from the cabling rack to the tower;

A grounding clip should be installed outside the feeder window (as close as possible). Its grounding cable is connected to the outdoor grounding bar of the equipment room;

If the feeder on the tower is longer than 60m, lightning protection clips should be installed in the middle part of the tower, with the clip spacing as 20 meters.

II. GPS antenna installed on building top

To install the GPS antenna on building top (independently), install a grounding clip outside the feeder entrance to the feeder window (at the nearest point), then connect the grounding wire with the outdoor PGND bar of the equipment room;

If the feeder is longer than 60 m, lightning protection clips should be installed in the middle part of the feeder, with the clip spacing as 20 m.

3.4.5 Feeder Test

After installation, do not connect feeder and antenna with the equipment. Check the resistance with multimeter between the feeder screen layer and the core. The resistance should be several megohms at least. If short circuit is found, check whether the feeder is damaged.

During installation, any misoperation may cause short circuit or break the core. The following methods can be used to check whether the core is broken: Remove the



3-13

antenna, and then short-circuit screen layer and the core at one end, and then check the resistance on the other end between the screen layer and the core. If the resistance is infinite, the feeder core is broken.

After confirming that the feeder is damaged, it is necessary to find out the damage point. It is recommended to consult the engineering personnel. If the length of the undamaged part is sufficient, it can still be used by adding a connector, which can be the one on the original feeder.

Installation Manual –Antenna & Feeder System Installation WCDMA NodeB Chapter 4 Checking Installation

4-1

Chapter 4 Checking Installation

After the installation is finished, check it to make preparations for the succeeding software installation and system commissioning.

Note:

The antenna and feeder system installation should be performed in strict compliance with the project requirements and technological specifications. Check each installation when it is completed so as to solve any problem as early as possible. Do not leave anything to the final hardware installation checking.

4.1 Checking Antenna & Feeder System of NodeB

Table 4-1 Check items of the antenna & feeder system of NodeB

Check category

Serial No. Check item

1 The feeders should be arranged neatly and nicely.

2 In accordance with the standard requirements, the feeder & jumper labels should be attached neatly and nicely and oriented in the same direction.

3 The feeders should not be broken or twisted. No copper skin should be exposed.

4 The bending radius of feeder should be no less than 20 times longer than the feeder diameter.

5 The installed feeder fixing clips should be spaced evenly and oriented in the same direction.

6 The feeders should keep straight for at least 0.5m at the places inside and outside the entry to the equipment room, and for 0.3m on the both sides of the lightning protection frame.

7 The feeders should not cross each other. They should be arranged in neat and straight row & column at the entry to the equipment room. The degree of their bending should be identical.

8

When the front of the cabinets is in parallel to the cabling direction of the lead-in feeders, the feeders in each sector should be arranged in a row. The arrangement sequences of all rows should be the same. When the front of the cabinets is perpendicular to the cabling direction of the lead-in feeders, the feeders in each sector should be arranged in a column. The arrangement sequences of all columns should be the same.

Checking the feeder

9 The feeder connectors should be prepared fastened in a standard way.


4-2

Check category


10 The feeders should be connected in a right way and arranged in the right sectors.

11 Make waterproof curves for the feeders outside their entry to the equipment room.

12

The feeders from the tower top to the equipment room should be grounded at least at four points.

1) Within 1m from the feeder connector;

2) On the feeder at the middle of the tower;

3) On the feeder at the bottom of the tower;

4) On the feeder outside the feeder encapsulated window (as close to the window as possible).

The grounded parts should be securely bound and well treated for waterproof.

13

The feeders from the roof to the equipment room should be grounded at least at three points.

1) Within 1m from the feeder connector;

2) At the places where the feeders are led down from the roof;

3) On the feeder outside the feeder encapsulated window (as close to the window as possible).

If the length of the feeder distributed on roof exceeds 20m, a feeder grounding clip should be applied to the feeder on the roof.

The grounded parts should be securely bound and well treated for waterproof.

14 When the length of the feeder exceeds 60m, the middle parts of the feeder should also be grounded by using lightening protection clips. The interval between two clips should be 20m.

15 If the feeders from the building top enter into the equipment room through a downward cabling ladder along the wall, the ladder should also be grounded.

16 The grounding cables of the feeders should be led from the top to the bottom. The angle formed by the feeders and the corresponding grounding cables should be no more than 150.

17 Terminals of the feeder grounding clips should be fixed to the corresponding nearest steel plates of the tower.

18 The antennas & feeders installed on the roof without communication tower should be grounded to the lightning protection grounding net at the nearby building top.

1 The grounding bar should be isolated from the wall. The grounding cable should be as short as possible.

Checking the

grounding bar 2 The outdoor grounding bar should be connected to the underground grounding net

through a reliable special path.

Checking the feeder

encapsulate1

The glue-adding holes in the sealing gland of the feeder encapsulated window should face upward. The plates of the encapsulated window should be installed indoor (not applicable for the new feeder encapsulated window).


4-3

Check category


d window 2 The feeder encapsulated window installed at the building top should be sealed more

carefully and securely.

1 The installation locations of the antennas should be in compliance with the design document.

2 The antenna should lie within the protection coverage of the lightning rod (a deviation of 300 downward from the top of the lightning rod).

Common

items

3 The antenna stand should be securely installed on the tower or roof.

4 The top of the antenna sheathing should be as high as or slightly higher than the stand top.

5 The omnidirectional antenna should stand upright with the error (if any) less than !20.

6 The distance of the antenna extending outside the tower platform should be no less than 2m.

7 For the omnidirectional antenna installed at the building top, the horizontal distance between the antenna and the antenna lightning rod should be no less than 2.5m.

8 The antenna isolation is required to be 30dB for both TX-TX and TX-RX antennas.

9 When two antennas are installed horizontally, the TX-TX/TX-RX antenna horizontal spacing should be no less than 5m.

10 When two antennas are installed vertically, the vertical spacing between TX-TX and TX-RX antennas should be no less than 0.2m.

11 According to the diversity RX requirement of the omnidirectional antenna, the RX-RX antenna horizontal spacing should be no less than 4m.

Omnidirectio

nal antenn

a

12 Omnidirectional Rx and Tx antennas can either share one antenna stand or be installed separately, depending on the project design drawing.

13 The error of the azimuth angle should be no more than !5 and that of the pitch angle no more than !0.5.

14 The antenna should be free from any interference of the tower structure in the forward direction. The distance of the antenna extending outside the tower platform should be no less than 1m.

15 The antenna isolation is required to be 30dB for both Tx-Tx and Tx-Rx antennas

16 The TX-TX/TX-RX antenna horizontal spacing in the same sector should be no less than 3m

17 The TX-TX/TX-RX antenna horizontal spacing in different sectors should be no less than 0.2m

18 For the vertical installation, the TX-TX/TX-RX antenna vertical spacing in the same sector should be no less than 0.2m.

Chec

king t

he an

tenna

s

Directional antenna

19 When installing the directional antenna, the interval between the space diversity reception of two RX antennas should be no less than 4m.

Checking the jumper,

1 All jumper connectors should go through the waterproof treatment. The waterproof curve should be made for the jumpers.


4-4

Check category


2 Jumpers connected to the antennas should be bound through the crossbars of the antenna stand onto the steel frame of the tower.

3 A certain allowance should be left at the cutting of the binding tapes.

4 The bending radius of jumper should be no less than 20 times longer than the jumper diameter.

4 The TTA should be installed near the antenna.

5 For the TTA with connectors on different sides, the connector to the antenna should be extended upward and that to the feeder downward. For the TTA with connectors on the same side, both connectors should be extended downward.

6 The lightning arrester should be suspended between the two crossbars of the cabling rack without contacting the cabling rack.

TTA and lightning arresters

7 The lightning arresters should be installed properly, neatly and nicely. There must be a grounding cable connected to the grounding bar for lightning arresters.

4.2 Checking Antenna & Feeder System of GPS

Most of the checking items and the checking requirements of antenna & feed system of GPS are the same as those of the antenna & feed system of NodeB. Here only lists the different checking items, for other items like checking feeders, checking jumpers, checking antennas, checking antenna stands and checking lightening protection clips, etc. please refer to Table 4-1.

Table 4-2 Check items of the antenna & feeder system of GPS

Check category

Serial No.

Check item

Checking the feeder

1 When the GPS antennas are not installed on the same tower as the NodeB antennas, or GPS antennas are installed on the roof, the grounding requirements for GPS feeders are different from those for NodeB feeders. That is the GPS feeders only need to be grounded to the outdoor grounding bar at the entrance where they are leaded into the equipment room. Besides, if the length of the feeder exceeds 60m, the middle parts of the feeder should be grounded by using lightening protection clips with an interval of 20m.

1 The “PROTECTED” end of the outdoor lightening arrester (on the side of the antenna) should be directed to the antenna.

2 The “PROTECTED” end of the indoor lightening arrester (on the side of the NodeB) should be directed to the NodeB.

3 The outdoor and indoor lightening arresters should not be grounded.

Checking the lightening arrester

4 If the indoor lightening arresters are of the iS-MR50LNZ+6 type, the “PROTECTED” end of the lightening arresters should be connected to the GPS connectors on the top of the NodeB cabinet through a duplex conversion connector.


4-5

Check category

Serial No.

Check item

5 If the indoor lightening arresters are of the DGXZ+6NFNM-A type, the “PROTECTED” end of the lightening arresters should be connected to the GPS connectors on the top of the NodeB cabinet directly.


Appendix A Interval Requirements for Antenna Installation

A-1


The antenna interval introduced in this section aims at typical application. It is for reference only. The actual installation should be based on the relative engineering documents.

A.1 Omni-directional Antenna

When the gain of omni-directional antenna is 11 dBi and the isolation is 30 dB, the interval requirements are as follows:

For horizontal installation, the horizontal interval between transmitting antenna and receiving antenna should be no less than 3 m.

For vertical installation, the vertical interval between transmitting antenna and receiving antenna should be no less than 0.2 m.

There should be no diversity gain within the range ±10 degree from stretched part of the main diversity antenna's connection cable. This part should not face the area with large number of subscribers. In the case of road installation, the antenna's connection cable should be vertical to the road.

A.2 Directional Antenna

When the gain of antenna is 18 dBi, the isolation is 30 dB, and the half-power beam width is 65°, the interval requirements are as follows:

For horizontal installation, the horizontal interval between the antennas of the same sector should be no less than 3 m.

The horizontal interval between the transmitting antenna and receiving antenna of different sectors should be no less than 0.5 m.

A.3 Sharing the Same Site with BTS of GSM or CDMA

A.3.1 Shareing the same site with BTS of GSM

For horizontal installation, the horizontal interval between WCDMA NodeB antenna and GSM BTS antenna should be no less than 4 m.

For vertical installation, the vertical interval between WCDMA NodeB antenna and GSM BTS antenna should be no less than 0.5 m.



A-2

A.3.2 Shareing the same site with BTS of CDMA

For horizontal installation, the horizontal interval between WCDMA NodeB antenna and CDMA BTS antenna should be no less than 4 m.

For vertical installation, the vertical interval between WCDMA NodeB antenna and CDMA BTS antenna should be no less than 0.5 m.


Appendix B Engineering Label of Antenna & Feeder System

B-1


B.1 Introduction

There are three types of engineering labels for antenna & feeder system, corresponding to outdoor feeder, indoor feeder and jumper. The label for outdoor feeder is metallic plate, and the one for indoor and jumper is paper label.

The features of paper label are the same as those of cable engineering label.

The features of outdoor feeder are:

Thickness: 1mm; Material: aluminum; Background of the front side is yellow spray painting, and the label contents on it

are black; Both sides are covered with protective plastic membrane.

B.2 Label of Feeder

B.2.1 Label of Outdoor Feeder

I. Contents

The contents of the feeder labels have been printed on before delivery. The contents of feeder labels are listed in Table B-1.

Table B-1 Contents of feeder label

Content Meaning

ANT Antenna and feeder NodeB antenna & feeder system feeder

Two-digit Numeral Numbering starts ascending from 00. The twelve antenna feeder ports of a cabinet are identified using 00~11.

GPS GPS system GPS antenna & feeder system feeder

One-digit numeral The two GPS antenna feeder ports are identified with 0 and 1.



B-2

One NodeB feeder label corresponds to one silkscreen of antenna feeder jumper port on the top of the cabinet, as shown in Table B-2.

Table B-2 Correspondence between feeder label and jumper port silkscreen

Jumper port silkscreen Feeder label of primary

cabinet Feeder label of secondary

cabinet













GPS_0 GPS_0 ——

GPS_1 GPS_1 ——

II. Layout

The layout of an outdoor feeder label is shown in Figure B-1.



B-3

Figure B-1 Outdoor feeder label (unit: mm)

III. Usage

An outdoor feeder label should be bound on a feeder with a black cable tie at:

The point 200 mm away from the lower connector under the outdoor antenna. The point 200~300 mm down the tower platform. The point 200 mm away from the outside of the feeder encapsulation window. The bent.

When binding labels to the feeders, make sure that they are neatly laid out. All labels should face the same direction, and so should the cable ties. When cutting off the extra part of a cable tie, make sure to leave 5~10 mm of tail on the cable tie.

B.2.2 Indoor Feeder Label

I. Contents

The contents of the indoor feeder label are the same as those of the outdoor label. Please refer to "B.2.1 I. Contents".

II. Layout

The layout of an indoor feeder label is shown in Figure B-2.

ANT_00

40

150

10 30AN

T_00

Figure B-2 Indoor feeder label (unit: mm)



B-4

III. Usage

An indoor feeder label should be stuck to a feeder at the point 200mm away from the connector.

When sticking the labels, make sure that their contents faces the proper direction so that they can be easily viewed.

B.3 Label of Jumper

I. Contents

The contents of the jumper label are the same as those of the outdoor label. Please refer to "B.2.1 I. Contents".

II. Layout

The layout of an jumper label is shown in Figure B-3.

ANT_0060

12

30

Figure B-3 Jumper label (unit: mm)

III. Usage

The indoor jumper labels should be stuck to the jumpers at the points 100mm away from the both ends. An outdoor jumper label should be stuck to a jumper at the point 100mm away from one end. Since the jumpers are short, a jumper will be attached with a label only.

When sticking the labels, make sure that their contents faces the proper direction so that they can be easily viewed.

Documents

Installation Manual-Antenna & Feeder System Installation