ZTE ZXCBTS192T Users Manual

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ZXCBTS (V5.4)

CDMA Micro Base Transceiver Station

& RF Remote Station

Installation Manual

ZTE CORPORATION

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station/RF Remote Station Installation Manual

Manual Version 20050422-R1.1 Product Version V5.4

duplicated, in any form or by any means without the prior written permission of ZTE Corporation.

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ZTE CORPORATION

ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhen, P.R.China

Website: http://www.zte.com.cn

Postcode: 518057

Customer Support Center: (+86755) 26771900 800-9830-9830

Fax: (+86755) 26770801

Email: support@zte.com.cn

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FAX：+86-755-26770160

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Park, Nanshan District, Shenzhen, P. R. China”. Our postcode is 518057.

Document name ZXCBTS (V5.4) CDMA Micro Base Transceiver Station/RF Remote Stations Installation Manual

Product version V5.4 Document version 20050422-R1.1

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Preface

About This Manual

This manual presents the hardware installation procedures of ZXCBTS micro base

transceiver stations (BTSs)/remote stations.

It is one of ZTE manual series for CDMA cellular mobile communications system. It

aims to providing guidance to the engineering personnel who install ZTE CDMA

micro-BTS/remote stations, as well as offering reference for the equipment

maintenance personnel.

Correct hardware installation is the basis for reliable and normal running of the base

transceiver stations, thus enjoying importance in engineering construction. To facilitate

the installation, this manual is written following the sequence of actual hardware

installation. First, it briefs the structure of the ZXCBTS products, which is helpful for

the installation personnel to get familiar with the equipment. Next, it describes the

equipment installation procedures in detail. Finally, it presents how to check the

equipment after the installation.

How to Use This Manual

1. Overview

Introduces the basic structure, basic installation procedures and points for

attention during installation of the micro-BTS/remote stations.

2. Preparations

Introduces the preparations for the installation, including listing needed tools

and checking the installation environment.

3. Open-box Inspection

Introduces the procedures and cautions for opening boxes and inspecting the

equipment.

4. Installation of Cabinet

Details the fixation and installation of the cabinet of the equipment.

5. Installation of Power Supply System

Details the installation of the power supply system of the equipment.

6. Installation of Grounding System

Details the installation of the grounding system of the equipment.

7. Connection of Cables

Details the check of internal cable connections between various modules, as well

as type selection and connection of external cables.

8. Installation of Primary Antenna Feeder System

Details the installation of the antenna feeder system of the equipment, including

the procedures of assembling feeder cable connectors, installing antenna, laying

feeder cables, installing feeder cable window and grounding equipment.

9. Installation of GPS antenna feeder system

Details the installation of GPS antenna feeder system for the equipment,

Conventions

including the procedures of assembling feeder cable connectors and installing

antenna.

10. Installation of Internal Modules

Details the installation of internal modules.

11. Hardware Installation Check

Presents how to check the hardware installation.

12. Power-on and Power-off

Presents the procedures of powering on/off the equipment.

13. Appendix

Presents the equipment performance specifications, meaning of various

indicators and connection of cables.

1. Notational Convention

Angular brackets “< >” identify names of keys and buttons, and the information

typed by an operator from a terminal. Square brackets “[ ]” indicate a

man-machine interface, menu item, data list or field name. The symbol “→”

separates a multi-level menu, for example, [File→New→Folder] indicates the

[Folder] menu item under the [New] submenu of the menu [File].

2. Keyboard Operation Convention

Format Description

<Key>

<Key1+Key2> Press Key 1 and Key 2 at the same time.

<key1, Key2> Press Key1 first. Then release Key 1 and press Key 2.

Indicate a key or button name, for example, <Enter>, <Tab>,

<Backspace>, and <a>.

3. Mouse Operation Convention

Format Description

Click

Double-click

Right-click

Drag Refers to pressing and holding a mouse button and move the mouse

Refers to clicking the primary mouse button (usually the left mouse

button) once

Refers to quickly clicking the primary mouse button (usually the left

mouse button) twice

Refers to clicking the secondary mouse button (usually the right mouse

button) once.

4. Danger, Warning, Caution and Note Statements

Note, Caution, War ni ng , Danger statements are

used throughout this manual to emphasize important and critical information.

You must read these statements to help ensure safety and to prevent product

damage.

Statement: The actual product may differ from what is described in this manual due to frequent update of ZTE products and fast development of technologies. Please contact the local ZTE office for the latest updating information of the product.

FCC & IC STATEMENT

Before using this CDMA Micro Base Transceiver Station & RF Remote Station, read this important RF

energy awareness and control information and operational instructions to ensure compliance with the FCC

and IC RF exposure guidelines.

NOTICE: Working with the equipment while in operation, may expose the technician to RF

electromagnetic fields that exceed FCC rules for human exposure. Visit the FCC website at

www.fcc.gov/oet/rfsafety

Changes or modifications to this unit not expressly approved by the party responsible for compliance will

void the user’s authority to operate the equipment. Any change to the equipment will void FCC and IC

grant.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant

to the FCC and IC Rules. This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a particular installation.

For OUTDOOR use, a PNALE Antenna with a maximum gain of 17dBi is authorized for use with this unit.

Outside antennas must be positioned to observe minimum separation of 2M (6.56 feet.) for 800MHz unit

and 1.5M (4.92 feet.) for 1900MHz unit from all users and bystanders. For the protection of personnel

working in the vicinity of outside (uplink) antennas, the following guidelines for minimum distances

between the human body and the antenna must be observed.

to learn more about the effects of exposure to RF electromagnetic fields.

The installation of an OUTDOOR antenna must be such that, under normal conditions, all personnel cannot

come within 2M (6.56 feet) for 800MHz unit and 1.5M (4.92 feet) for 1900MHz unit from the outside

antenna. Exceeding this minimum separation will ensure that the worker or bystander does not receive

RF-exposure beyond the Maximum Permissible Exposure according to section 1.1310 i.e. limits for

Controlled Exposure.

Contents

1 Overview..................................................................................................................................................1-1

1.1 Introduction to Micro-BTS ............................................................................................................1-1

1.2 Installation Overview.....................................................................................................................1-4

1.3 Installation Flow ............................................................................................................................1-5

1.4 Points for Attention ........................................................................................................................1-7

2 Preparations ............................................................................................................................................2-1

2.1 Installation Environment Check..................................................................................................... 2-1

2.1.1 Checking Equipment Building Conditions..........................................................................2-1

2.1.2 Checking Indoor Environment............................................................................................2-1

2.1.3 Checking Power Supply System .........................................................................................2-2

2.1.4 Checking Grounding System ..............................................................................................2-2

2.1.5 Checking Relative Devices .................................................................................................2-2

2.2 Tools and Instruments ....................................................................................................................2-2

2.3 Technical Documents ..................................................................................................................... 2-3

3 Open-box Inspection...............................................................................................................................3-1

3.1 Checking Packing List and Goods ................................................................................................. 3-1

3.2 Packaging.......................................................................................................................................3-2

3.3 Open-box Procedures.....................................................................................................................3-2

4 Installation of Cabinet............................................................................................................................4-1

4.1 Installation Flow ............................................................................................................................4-1

4.2 Installation Modes.......................................................................................................................... 4-2

4.2.1 Installing Cabinet on Pole ................................................................................................... 4-2

4.2.2 Installing Cabinet on Wall................................................................................................... 4-6

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5 Installation of Power Supply System ....................................................................................................5-1

5.1 Introduction to Power Cables ........................................................................................................ 5-1

5.1.1 -48V DC Power Cable ........................................................................................................ 5-1

5.1.2 120V AC Power Cable........................................................................................................ 5-2

5.2 Connection of Power Cables ......................................................................................................... 5-2

5.3 Assembling Power Cable Connector ............................................................................................. 5-3

5.3.1 Assembling -48V DC Power Cable Connector................................................................... 5-3

5.3.2 Assembling 120V AC Power Cable Connector .................................................................. 5-5

6 Installation of Grounding System .........................................................................................................6-1

6.1 Introduction to the Grounding System........................................................................................... 6-1

6.2 Installing Grounding System ......................................................................................................... 6-2

6.2.1 Installing Outdoor Grounding Copper Busbar.................................................................... 6-2

6.2.2 Installing the Grounding System of Micro-BTS................................................................. 6-3

6.2.3 Installing Feeder Cable Grounding Kit............................................................................... 6-4

7 Connection of Cables..............................................................................................................................7-1

7.1 Checking Internal Cable Connections ........................................................................................... 7-1

7.1.1 Type and Configuration of Internal Cables......................................................................... 7-1

7.1.2 Connection of Internal Cables ............................................................................................ 7-3

7.2 Connecting External Cables .......................................................................................................... 7-3

7.2.1 Connecting Optical Fiber.................................................................................................... 7-3

7.2.2 Connecting Multi-carrier Interconnection RF Cables......................................................... 7-7

7.2.3 Waterproof Processing of Joints ......................................................................................... 7-8

7.2.4 Connection of Trunk Cables ............................................................................................... 7-9

8 Installation of Primary Antenna Feeder System.................................................................................. 8-1

8.1 Preparations ................................................................................................................................... 8-1

8.1.1 Installation Personnel.......................................................................................................... 8-1

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8.1.2 Installation Environment.....................................................................................................8-2

8.1.3 Security Measures ............................................................................................................... 8-2

8.1.4 Installation Tools.................................................................................................................8-2

8.2 Composition and Installation Requirements of Antenna Feeder System ....................................... 8-3

8.2.1 Composition........................................................................................................................8-3

8.2.2 Technical Parameters........................................................................................................... 8-5

8.3 Installation Flow ............................................................................................................................8-5

8.4 Installation of Antenna ...................................................................................................................8-6

8.4.1 Determining Installation Location ......................................................................................8-6

8.4.2 Installing Accessories of Directional Antenna ....................................................................8-7

8.4.3 Transporting and Raising Antenna......................................................................................8-8

8.4.4 Installing and Adjusting Directional Antenna.....................................................................8-9

8.4.5 Installing and Adjusting Omni Antenna............................................................................8-10

8.4.6 Connecting Jumper Cable with Antenna and Sealing Their Joint.....................................8-10

8.5 Installation of Feeder Cable Window........................................................................................... 8-11

8.6 Connection of Feeder Cable......................................................................................................... 8-12

8.6.1 Determining Route for Feeder Cable ................................................................................ 8-13

8.6.2 Assembling Connectors of Primary Feeder Cable ............................................................8-13

8.6.3 Cutting Feeder Cable.........................................................................................................8-16

8.6.4 Raising Primary Feeder Cable...........................................................................................8-17

8.6.5 Laying and Fastening Primary Feeder Cable .................................................................... 8-18

8.6.6 Connecting Jumper Cable with Feeder Cable and Sealing Their Joint ............................. 8-20

8.6.7 Leading Primary Feeder Cable into Equipment Room .....................................................8-21

8.6.8 Connecting Indoor Jumper Cable......................................................................................8-23

8.7 Grounding System of Micro-BTS................................................................................................8-23

8.8 Test of Antenna Feeder System....................................................................................................8-26

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8.9 Waterproof Processing of Connectors.......................................................................................... 8-26

9 Installation of GPS Antenna Feeder System ........................................................................................ 9-1

9.1 Preparations ................................................................................................................................... 9-1

9.1.1 Installation Personnel.......................................................................................................... 9-1

9.1.2 Installation Environment..................................................................................................... 9-1

9.1.3 Security Measures............................................................................................................... 9-2

9.1.4 Installation Tools................................................................................................................. 9-2

9.2 Composition of GPS Antenna Feeder System ............................................................................... 9-3

9.3 Installation Procedures................................................................................................................... 9-3

9.4 Test of Antenna Feeder System...................................................................................................... 9-5

10 Installation of Internal Modules........................................................................................................10-1

10.1 Overview ................................................................................................................................... 10-1

10.1.1 Logical Positions of Equipment Modules....................................................................... 10-1

10.1.2 Layout of Internal Modules ............................................................................................ 10-2

10.1.3 Functions of the Modules ............................................................................................... 10-4

10.2 Module Installation Flow........................................................................................................... 10-7

10.3 Installation and Replacement of Modules.................................................................................. 10-8

10.3.1 Installation Sequence...................................................................................................... 10-8

10.3.2 Table of Cable Connections............................................................................................ 10-8

10.3.3 Fastening and Bundling of Internal Cables..................................................................... 10-9

10.3.4 Installation of OIM ....................................................................................................... 10-11

10.3.5 Installation of LFM....................................................................................................... 10-12

10.4 Points for Attention.................................................................................................................. 10-12

11 Hardware Installation Check..............................................................................................................11-1

11.1 Checking Components in the Cabinet........................................................................................ 11-1

11.2 Checking the Cabinet................................................................................................................. 11-1

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11.3 Checking Cables.........................................................................................................................11-2

11.4 Checking Power Cables and Grounding Cables.........................................................................11-2

11.5 Checking T1 Cables ................................................................................................................... 11-4

11.6 Checking Indoor 1/2” Jumper Cables ........................................................................................11-4

11.7 Checking Primary Feeder Cables and GPS Feeder Cables ........................................................ 11-5

11.8 Checking Water-blocking Curve for Feeder Cable Window and Primary Feeder Cables.......... 11-6

11.9 Checking Hangers ...................................................................................................................... 11-6

11.10 Checking Outdoor 1/2” Jumper Cables.................................................................................... 11-7

11.11 Checking Antenna .................................................................................................................... 11-7

11.12 Checking Standing Wave Ratio of Feeder Cables.................................................................... 11-9

11.13 Checking Indoor and Outdoor Environment ............................................................................ 11-9

12 Power-on and Power-off.....................................................................................................................12-1

12.1 Checking Components in the Cabinet before Power-on ............................................................ 12-1

12.2 Checking External Cables before Power-on ..............................................................................12-2

12.3 Powering on/off the Cabinet ...................................................................................................... 12-2

13 Installing the Integrated Micro-BTS.................................................................................................13-1

13.1 Introduction to the Solution of Micro-BTS Integration .............................................................13-1

13.1.1 Implementation of the Micro-BTS Integration ...............................................................13-1

13.1.2 Micro-BTS Integration Solution .....................................................................................13-2

13.1.3 Module Layout of the Integrated Micro-BTS and RF Remote Station ...........................13-4

13.1.4 Networking Modes of the Integrated SDH......................................................................13-7

13.2 Installing the Built-in SDH of Micro-BTS.................................................................................13-7

13.2.1 Position and Internal Connection of the Built-in SDH in the Micro-BTS ......................13-7

13.2.2 Connecting the External Optical Fibers and Cables During Installation.........................13-8

13.3 Installing the Integrated UPS of Micro-BTS/RF Remote Station............................................13-10

13.3.1 Introduction to ZXUPS L010........................................................................................ 13-10

-v-

13.3.2 Precautions for UPS Installation................................................................................... 13-11

13.3.3 Structural Feature and Installation Mode of UPS ......................................................... 13-12

13.3.4 Installing the Engineering Cables of L010UPS............................................................ 13-13

13.3.5 Installing UPS............................................................................................................... 13-14

13.4 Installing the Ancillary Combinational Power Supply of Micro-BTS/RF Remote Station ..... 13-15

13.4.1 Installing the Outdoor Power Box ................................................................................ 13-15

13.4.2 Installing the Outdoor Battery Box............................................................................... 13-17

13.4.3 Cable Connection for Outdoor Power Box................................................................... 13-17

Appendix A Packaging, Storage and Transportation ............................................................................ A-1

A.1 Packaging..................................................................................................................................... A-1

A.2 Storage ......................................................................................................................................... A-1

A.3 Transportation.............................................................................................................................. A-2

Appendix B Table of Cable Connections.................................................................................................B-1

B.1 Cable Connections in M800T Single-carrier Micro-BTS .............................................................B-1

B.2 Cable Connections in M800T Double-carrier Micro-BTS............................................................B-2

B.3 Cable Connections in R800T Single-carrier Remote Stations ......................................................B-3

B.4 Cable Connections in R800T Double-carrier Remote Stations.....................................................B-5

B.5 Cable Connections in M190T Single-carrier Micro-BTS .............................................................B-6

B.6 Cable Connections in M190T Double-carrier Micro-BTS............................................................B-7

B.7 Cable Connections in R190T Single-carrier Remote Stations ......................................................B-8

B.8 Cable Connections in R190T Double-carrier Remote Stations.....................................................B-9

B.9 Cable Connections in M802T Single-carrier Micro-BTS ...........................................................B-10

B.10 Cable Connections in M802T Double-carrier Micro-BTS........................................................B-12

B.11 Cable Connections in R802 Single-carrier RF Remote Stations...............................................B-13

B.12 Cable Connections in R802T Double-carrier Remote Stations.................................................B-14

B.13 Cable Connections in M191T Single-carrier Micro-BTS .........................................................B-15

-vi-

B.14 Cable Connections in M191T Double-carrier Micro-BTS....................................................... B-16

B.15 Cable Connections in R191T Single-carrier Remote Stations.................................................. B-18

B.16 Cable Connections in R191T Double-carrier Remote Stations ................................................ B-19

B.17 Cable Connections in M192T Single-carrier Micro-BTS......................................................... B-20

B.18 Cable Connections in M192T Double-carrier Micro-BTS....................................................... B-21

B.19 Cable Connections in R192T Single-carrier Remote Stations.................................................. B-22

B.20 Cable Connections in R192T Double-carrier Remote Stations ................................................ B-23

Appendix C Equipment Parameters .......................................................................................................C-1

C.1 Dimension .................................................................................................................................... C-1

C.2 Power Consumption ..................................................................................................................... C-1

Appendix D Indicators..............................................................................................................................D-1

D.1 BDM Indicators............................................................................................................................ D-1

D.2 Indicators on Front Panel of MGPS ............................................................................................. D-1

D.3 Indicators of LFM, RFM and OIM ..............................................................................................D-2

Appendix E Abbreviations .......................................................................................................................E-1

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A List of Figures

Fig. 1.1-1 Structure of ZXCBTS M800T Micro-BTS....................................................................... 1-2

Fig. 1.1-2 Structure of Remote Stations ............................................................................................ 1-3

Fig. 1.1-3 Connection between Remote Station and Macro-BTS.....................................................1-3

Fig. 1.1-4 Connection between Remote Station and Macro-BTS.....................................................1-4

Fig. 1.2-1 Schematic Diagram of the Hardware Installation of Micro-BTS/Remote Station ...........1-5

Fig. 1.3-1 Hardware Installation Flow Diagram ............................................................................... 1-6

Fig. 3.2-1 Packing Box for ZXCBTS Cabinet .................................................................................. 3-2

Fig. 3.3-1 Schematic Diagram for Opening a Box............................................................................3-3

Fig. 4.1-1 Flow of Installing the Cabinet .......................................................................................... 4-2

Fig. 4.2-1 Schematic Diagram of Fastening the Cabinet onto the Pole (step 1) ...............................4-3

Fig. 4.2-2 Schematic Diagram of Fastening the Cabinet onto the Pole (step 2) ...............................4-4

Fig. 4.2-3 Schematic Diagram of Fastening the Cabinet onto the Pole (step 3) ...............................4-4

Fig. 4.2-4 Schematic Diagram of the Cabinet Fastened onto the Pole..............................................4-5

Fig. 4.2-5 Schematic Diagram of Installing the Support onto the Wall ............................................4-6

Fig. 4.2-6 Schematic Diagram of Installing the Cabinet onto the Wall............................................. 4-7

Fig. 5.1-1 Four-pin Connector and Four-core Power Cable.............................................................5-1

Fig. 5.2-1 Connection of Power Cables and Grounding Cables at the Bottom of a Cabinet............5-3

Fig. 5.3-1 Assembling a Power Cable Connector (step 1)................................................................5-3

Fig. 5.3-2 Assembling a Power Cable Connector (step 2)................................................................5-4

Fig. 5.3-3 Assembling a Power Cable Connector (step 4)................................................................5-4

Fig. 5.3-4 Assembling a Power Cable Connector (step 5)................................................................5-5

Fig. 5.3-5 Assembling a Power Cable Connector (step 6)................................................................5-5

Fig. 6.1-1 Schematic Diagram of Grounding Connections...............................................................6-2

-i-

Fig. 6.2-1 Appearance of a Grounding Copper Busbar .................................................................... 6-3

Fig. 6.2-2 Connection of Power Cable and PGND Cable at the Bottom of a Cabinet...................... 6-4

Fig. 6.2-3 Structure of a Grounding Kit............................................................................................ 6-5

Fig. 6.2-4 Schematic Diagram of Wrapping Waterproof Adhesive Tape Around the Grounding Cable

............................................................................................................................................................. 6-6

Fig. 7.2-1 Structure of Optical Fiber (1)........................................................................................... 7-3

Fig. 7.2-2 Structure of Optical Fiber (2)........................................................................................... 7-4

Fig. 7.2-3 Structure of Optical Fiber (3)........................................................................................... 7-5

Fig. 7.2-4 Structure of Optical Fiber (4)........................................................................................... 7-5

Fig. 7.2-5 Schematic Diagram of Connecting Optical Fiber ............................................................ 7-6

Fig. 7.2-6 Connection of Interconnection RF Cables ....................................................................... 7-8

Fig. 7.2-7 Connection of T1 Cables.................................................................................................. 7-9

Fig. 8.2-1 Typical Structure of the Antenna Feeder System ............................................................. 8-4

Fig. 8.3-1 Antenna Installation Flow................................................................................................ 8-6

Fig. 8.4-1 Installation of the KATHREIN Antenna .......................................................................... 8-7

Fig. 8.4-2 Schematic Diagram of Raising the Antenna to the Tower Top ........................................ 8-8

Fig. 8.4-3 Schematic Diagram of Adjusting the Pitch Angle of the Antenna ................................. 8-10

Fig. 8.5-1 Structure of a Feeder Cable Window ............................................................................. 8-12

Fig. 8.6-1 Structure of the Feeder Cable of a Micro-BTS/Remote Station..................................... 8-13

Fig. 8.6-2 Cutter for Assembling 7/8” Feeder Cable Connectors................................................... 8-14

Fig. 8.6-3 Schematic Diagram of Cutting the Feeder Cable with the Cutter.................................. 8-14

Fig. 8.6-4 Schematic Diagram of Correct Cutting Size.................................................................. 8-14

Fig. 8.6-5 Schematic Diagram of Expanding the External Copper Conductor............................... 8-15

Fig. 8.6-6 Schematic Diagram of Connecting the Front Part with the Back Part of the Connector8-15

Fig. 8.6-7 Schematic Diagram of Fastening the Front Part with the Back Part of the Connector .. 8-16

Fig. 8.6-8 Schematic Diagram of Pulling the Feeder Cable Up the Tower..................................... 8-18

Fig. 8.6-9 Appearance of a Hanger................................................................................................. 8-19

-ii-

Fig. 8.6-10 Schematic Diagram of Wrapping Waterproof Adhesive Tape (1)................................. 8-20

Fig. 8.6-11 Schematic Diagram of Wrapping Waterproof Adhesive Tape (2)................................. 8-21

Fig. 8.6-12 Schematic Diagram of Wrapping Waterproof Adhesive Tape (3)................................. 8-21

Fig. 8.6-13 Leading the Feeder Cable into the Equipment Room - Mode 1 ...................................8-22

Fig. 8.6-14 Leading the Feeder Cable into the Equipment Room - Mode 2 ...................................8-22

Fig. 8.7-1 Structure of a Grounding Kit..........................................................................................8-24

Fig. 8.7-2 Schematic Diagram of Wrapping Waterproof Adhesive Tape Around the Grounding Cable

...........................................................................................................................................................8-25

Fig. 9.2-1 Composition of the GPS Antenna Feeder System............................................................9-3

Fig. 9.3-1 Schematic Diagram of Length of Cable Sheath to be Stripped ........................................9-4

Fig. 9.3-2 Schematic Diagram of Soldering the Core Wire with the Pin ..........................................9-4

Fig. 9.3-3 Structure of N-J7A............................................................................................................9-4

Fig. 10.1-1 Modules and Boards in M800T/M801T/M802T/M190T/M191T/M192T Micro-BTS10-1

Fig. 10.1-2 Modules and Boards in R800T/R801T/R802T/R190T/R191T/R192T ........................10-2

Fig. 10.1-3 Layout of Modules in a ZXCBTS Micro-BTS.............................................................10-3

Fig. 10.1-4 Layout of Modules in a ZXCBTS Remote Station....................................................... 10-4

Fig. 10.2-1 Module Installation Flow Diagram............................................................................... 10-7

Fig. 10.3-1 Schematic Diagram of Bundling Internal Cables (1)....................................................10-9

Fig. 10.3-2 Schematic Diagram of Bundling Internal Cables (2)..................................................10-10

Fig. 10.3-3 Schematic Diagram of Bundling Internal Cables (3)..................................................10-10

Fig. 10.3-4 Corresponding Relations between OIM Expansion Slots in BDM and Sectors......... 10-11

Fig. 10.3-5 Schematic Diagram of Inserting the OIM into the BDM ...........................................10-12

Fig. 12.1-1 Setting of S1 ................................................................................................................. 12-1

Fig. 13.1-1 Solution (I) of Micro-BTS Integration ............................................................................13-3

Fig. 13.1-2 Solution (II) of Micro-BTS Integration...........................................................................13-4

Fig. 13.1-3 Layout of Modules in the ZXCBTS micro-BTS .............................................................13-5

Fig. 13.2-1 Cable Layout of the Built-in SDH in the CDMA Micro-BTS.........................................13-8

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Fig. 13.2-3 Connection of the Optical Fiber.................................................................................... 13-10

Fig. 13.3-1 Appearance of the ZXUPS L010 Series........................................................................ 13-11

Fig. 13.3-2 Inner Structure of the ZXUPS L010 Series................................................................... 13-11

Fig. 13.3-4 Layout of the Monitoring Cables of the CDMA Micro-BTS 485/Dry Contact ............ 13-14

Fig. 13.4-6 Output Connecting Terminal of the Dry Contact .......................................................... 13-19

Fig. C.1-1 Appearance of a ZXCBTS Cabinet .................................................................................C-1

Fig. D.1-1 Indicators of the BDM.................................................................................................... D-1

Fig. D.3-1 Location of Indicators on the OIM Panel ...................................................................... D-4

-iv-

A List of Tables

Table 1.1-1 List of ZXCBTS Micro-BTS/Remote Stations (800MHz) ............................................1-1

Table 1.1-2 List of ZXCBTS Micro-BTS/Remote Stations (1900MHz) .......................................... 1-1

Table 2.2-1 Tools and Instruments Needed for the Installation.........................................................2-2

Table 5.1-1 Corresponding Relationship between Core Wires and Binding Posts............................5-2

Table 5.1-2 Corresponding Relationship between Core Wires and Binding Posts............................5-2

Table 5.3-1 Corresponding Relationship between Core Wires and Binding Posts........................... 5-6

Table 7.1-1 List of Types and Configurations of Internal Cables......................................................7-1

Table 13.2-1 Cable Connection of the Built-in SDH inside the CDMA Micro-BTS.........................13-7

Table 13.3-1 From-to-list of the CDMA Micro-BTS 485/dry contact supplementary cables..........13-13

Table B.1-1 Cable Connections in M800T Single-carrier Micro-BTS ............................................ B-1

Table B.2-1 Cable Connections in M800T Double-carrier Micro-BTS........................................... B-2

Table B.3-1 Cable Connections in R800T Single-carrier Remote Stations...................................... B-3

Table B.4-1 Cable Connections in R800T Double-carrier Remote Stations.................................... B-5

Table B.5-1 Cable Connections in M190T Single-carrier Micro-BTS ............................................ B-6

Table B.6-1 Cable Connections in M190T Double-carrier Micro-BTS........................................... B-7

Table B.7-1 Cable Connections in R190T Single-carrier Remote Stations...................................... B-8

Table B.8-1 Cable Connections in R190T Double-carrier Remote Stations.................................... B-9

Table B.9-1 Cable Connections in M802T Single-carrier Micro-BTS .......................................... B-10

Table B.10-1 Cable Connections in M802T Double-carrier Micro-BTS ....................................... B-12

Table B.11-1 Cable Connections in R802T Single-carrier Remote Stations.................................. B-13

Table B.12-1 Cable Connections in R802T Double-carrier RF Remote Stations .......................... B-14

Table B.13-1 Cable Connections in M191T Single-carrier Micro-BTS......................................... B-15

Table B.14-1 Cable Connections in M191T Double-carrier Micro-BTS ....................................... B-16

-i-

Table B.15-1 Cable Connections in R191T Single-carrier Remote Stations..................................B-18

Table B.16-1 Cable Connections in R191T Double-carrier Remote Stations.................................B-19

Table B.17-1 Cable Connections in M192T Single-carrier Micro-BTS.........................................B-20

Table B.18-1 Cable Connections in M192T Double-carrier Micro-BTS........................................B-21

Table B.19-1 Cable Connections in R192T Single-carrier Remote Stations..................................B-22

Table B.20-1 Cable Connections in R192T Double-carrier Remote Stations.................................B-23

Table C.2-1 Power Consumption of Several Types of Micro-BTS and Remote Stations.................C-2

Table C.2-2 Power Consumption of Several Types of Micro-BTS and Remote Stations.................C-2

Table C.2-3 Power Consumption of Several Types of Micro-BTS and Remote Stations.................C-3

Table D.2-1 Indicators on the Front Panel of MGPS ....................................................................... D-1

Table D.3-1 Indicators of the LFM.................................................................................................. D-2

Table D.3-2 Indicators of the RFM.................................................................................................. D-3

Table D.3-3 Indicators on the OIM Panel........................................................................................D-4

-ii-

1 Overview

 Summary

1.1 Introduction to Micro-BTS

Listing the components to be installed.

Describing the installation flow.

Presenting points for attention during the installation

With the development of various new technologies, Base Transceiver Station (BTS) is

oriented to be small and intelligent, with low power consumption, low cost and high

reliability. In large or medium-sized cities, common micro-BTS cannot meet the

demand of some busy-traffic areas due to the block of high buildings. In addition, it is a

waste for micro-BTS to be installed in some remote areas with less traffic. Moreover,

micro-BTS have high requirements on the equipment room environment. To avoid the

above problems, ZTE has developed ZXCBTS products.

ZXCBTS products are classified based on different frequency bands and transmitter

powers. This manual serves for the installation of the following models:

Table 1.1-1 List of ZXCBTS Micro-BTS/Remote Stations (800MHz)

Model Name Rated Transmission Power

ZXCBTS M800T CDMA micro-BTS (800MHz) 10W

ZXCBTS M802T CDMA micro-BTS (800MHz) 20W

ZXCBTS R800T CDMA remote station (800MHz) 10W

ZXCBTS R802T CDMA remote station (800MHz) 20W

Table 1.1-2 List of ZXCBTS Micro-BTS/Remote Stations (1900MHz)

Model Name Rated Transmission Power

ZXCBTS M190T CDMA micro-BTS (1900MHz) 5W

ZXCBTS M191T CDMA micro-BTS (1900MHz) 10W

1-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Model Name Rated Transmission Power

ZXCBTS M192T CDMA micro-BTS (1900MHz) 20W

ZXCBTS R190T CDMA remote station (1900MHz) 5W

ZXCBTS R191T CDMA remote station (1900MHz) 10W

ZXCBTS R192T CDMA remote station (1900MHz) 20W

ZXCBTS products include micro-BTS and remote stations, working in the frequency

bands of 800MHz and 1.9GHz.

Micro-BTS system consists of Baseband Digital Subsystem (BDS), Timing &

Frequency Subsystem (TFS), power supply subsystem, lightning protection subsystem

and Radio Frequency Subsystem (RFS). The structure of

M800T/M802T//M190T/M191T/M192T micro-BTS is illustrated in the following

figure.

GPS antenna RF antenna

Micro-BTS

T1 (4)

BSC, macro-/

micro-BTS

Fig. 1.1-1 Structure of ZXCBTS M800T Micro-BTS

BDS

subsystem

(BDM)

TFS

subsystem

(GPSTM)

GPS, RF antenna feeder and power lightning

arrester

RFS subsystem (MTRX, MPA, MLNA, MDUP

and MDIV)

Power supply

Remote stations are similar to micro-BTS in structure, but different in replacing

Baseband Digital Module (BDM) with Remote Fiber Module (RFM) and removing

GPS Timing Module (GPSTM), for the clock signals of remote stations are

demodulated from the signals sent through optical fiber. The structure of remote

stations is illustrated in the following figure.

1-2

Chapter 1 Overview

RF antenna

Optical

fiber

Fig. 1.1-2 Structure of Remote Stations

RFM

RF antenna feeder and power

lightning arrester

RFS (MTRX,

MDUP and MDIV)

Power

supply

Remote stations should cooperate with the macro-/micro-BTS to achieve the BTS

functions, so you need to configure Local Fiber Module (LFM) on micro-BTS or

Optical Interface Module (OIM) on micro-BTS for interworking with the remote

stations.

If the LFM is configured in a macro-BTS, the connection between the remote station

and the macro-BTS is illustrated in the following figure.

RX RXTX

DIV DUP

Macro-BTS

R F

Fig. 1.1-3 Connection between Remote Station and Macro-BTS

L F M

Optical fiber

R F M

MLNA

RX RX

Remote station

MPA

MTRX

MLNA

If the OIM is configured in a micro-BTS, the connection between the remote station

and the micro-BTS is illustrated in the following figure.

1-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

RX RXTX

DIV DUP

Micro-BTS

Fig. 1.1-4 Connection between Remote Station and Macro-BTS

Optical fiber

R F M

MLNA

RX RX

Remote station

MPA

MTRX

RXTX

MLNA

1.2 Installation Overview

The hardware installation of micro-BTS/remote stations can be divided into the

following aspects:

1. Installing shelf and boards, connecting internal cables and setting DIP switches

2. Installing the power supply system

3. Installing the grounding system

4. Locating and installing the antenna, jumper cable and feeder cable, and testing

the antenna feeder system

5. Installing GPS and its feeder cables

6. Connecting trunk cables and assembling their connectors

7. Installing the alarm system for reporting abnormal temperature and humidity

See Fig. 1.2-1.

1-4

Chapter 1 Overview

Install the power

supply system

Install the

grounding system

Fig. 1.2-1 Schematic Diagram of the Hardware Installation of Micro-BTS/Remote Station

1.3 Installation Flow

Install the equipment following the specified procedures strictly:

Install the GPS

Install the

antenna system

Install the ZXCBTS cabinet

Install the shelf

Check internal

cables

Set the DIP

switches

Connect trunk

cables

Install the

sunshade cover

1. Install the support;

2. Locate the cabinet on the support;

3. Secure the cabinet;

4. Install the sunshade cover (necessary for outdoor installation);

5. Connect power cables and grounding cables of the cabinet;

6. Connect T1 cables of the cabinet;

7. Install the primary antenna feeder system to connect with the RF cables;

8. Install the GPS;

9. Install and test the boards and modules, and set the DIP switches;

10. Check the installation.

See Fig. 1.3-1.

1-5

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Start

Engineering Survey

Report

BTS Engineering

Design and

Construction Drawing

Environment

Acceptance Report

Cabling rack Power

supply system

Grounding system

Other accessories

Preparation for

engineering installation

Check construction

conditions

Open-box inspection

Packing list

Goods are

correct

Yes

Install the shelf

Install the power

supply system

Install the

grounding system

Check cable connections

in the shelf

Connect trunk cables

Check the primary

antenna feeder system

Goods Error Feedback

List

Goods Replacement

Feedback List

Install the GPS

Set DIP switches

Hardware installation

check

End

Fig. 1.3-1 Hardware Installation Flow Diagram

1-6

Chapter 1 Overview

1.4 Points for Attention

Pay attention to the following points during the installation: The installation personnel

should be trained to obtain the qualification entitled by ZTE and read this manual

before the installation.

1. Do not operate on the cabinet or any module when the power is on.

2. Observe the relative requirements strictly when installing the BTS.

3. Do not install the antenna feeder system in thunder weather.

4. Before the thunder storm season of each year comes, check whether the

lightning arrester is in good condition and is well contacted. If it is damaged,

replace it immediately.

5. When the installation of the cabinet completes, lock the door immediately. If the

door need be opened in case of maintenance, contact the professional personnel

for help.

1-7

2 Preparations

 Summary

Describing the installation environment check.

Listing the installation tools.

Listing the technical documents needed for

installation.

2.1 Installation Environment Check

The items to check:

2.1.1 Checking Equipment Building Conditions

Check if the layout, height, bearing capability, shock-proof ability, doors and windows,

walls and troughs of the equipment building meet the requirements.

2.1.2 Checking Indoor Environment

Check the temperature, humidity, air pressure, ventilation condition, antistatic

protection measures, anti-interference measures, dustproof measures, rodent-resistant

measures, fire-protection facility, lighting condition, water supply and drainage system

of the equipment room.

To the highest priority, the equipment should be installed on the cool and dry walls

indoors with good ventilation; the fire-protection facility should be equipped; there

should be no caustic gas or smog in the room and no leakage on the roof; the

electromagnetic interference strength should be no more than 140dBµV/m

(0.01MHz~110000MHz). Or the equipment can be installed on the shady walls

outdoors with good ventilation and rain blocks. To the least priority, the equipment can

be installed on common walls, towers or high poles. The operating temperature range

of the equipment is between -40°C and +55°C, and the relative humidity range is

between 5% and 100%.

2-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

2.1.3 Checking Power Supply System

Check the power supply ability and quality. A group of independent and stable

85V~138V (nominal 120V) AC power should be supplied to the equipment. It is

prohibited to share the power supply with other high-power telecom equipment or the

usually powered-down equipment.

2.1.4 Checking Grounding System

The standard grounding system should be equipped and the resistance should be less

than 5 ohm.

2.1.5 Checking Relative Devices

Check if the other devices relative to the normal operation of the equipment are in good

condition, such as interface device, transmission device, Digital Distribution Frame

(DDF) and Optical Distribution Frame (ODF).

2.2 Tools and Instruments

Prepare the tools and instruments needed for the installation in advance as listed in

Table 2.2-1.

Table 2.2-1 Tools and Instruments Needed for the Installation

Type Name

Special tools

Drilling tools

General tools

One cutter for assembling feeder cable connectors

One 75-ohm coaxial cable stripper

75-ohm coaxial crimping plier

One multi-functional crimping plier

One multimeter

One SiteMaster standing wave ratio tester

One earth resistance tester

One percussive drill

Several drill bits

One cleaner

One power connector board (with at least three two-pin and three-pin

sockets respectively; the current capacity is more than 15 amp.)

Three cross screw-drivers (4”, 6” and 8”)

Three straight screw-drivers (4”, 6” and 8”)

Four adjustable wrenches (6”, 8”, 10” and 12”)

2-2

Chapter 2 Preparations

Type Name

Two spanners (17” and 19”)

One hexagon spanner

One socket wrench

One 5kg nail hammer

One 300W electric iron and one 40W electric iron

One coil of solder wires

One 50m tape measure

One 5m steel tape measure

One 400mm horizontal ruler

Measurement tools

Protection tools

Locksmith tools

Assistant tools

One inclinometer

One compass

One multimeter

Ruler

One plumb

Antistatic wrist strap

Safety helmet, slip-proof gloves

One hacksaw, several saw blades

One sharp nose plier (8”)

One diagonal plier (8”)

One slip joint plier (8”)

One vice (8”)

A set of files (middle)

One tweezers

One paint brush

One scissors

One dryer

One solder removal tool

One hydraulic pressure pliers

One crowbar

Pulley group

Rope

Ladder

Forklift

2.3 Technical Documents

Prepare the following technical documents:

1. Engineering Survey Report, BTS Engineering Design and Construction Drawing, Environment Acceptance Report

2-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Engineering Survey Report should be filled by the technical engineers of the

equipment provider during site survey. If they can not carry out the survey in

time, you should survey the site, fill in the report and then send it to the

equipment provider. This report is used for the preparation of construction

materials.

BTS Engineering Design and Construction Drawing should be prepared by the

design unit you entrusted, and a copy should be provided to the equipment

provider before the delivery.

Environment Acceptance Report is used by the technical engineers of the

equipment provider to check the construction environment during site survey. If

any inconformity is found, you are required to solve the problem. Before the

construction, the second check will be implemented.

2. ZXCBTS(V5.4)CDMA Micro Base Transceiver Stations/RF Remote Stations

Installation Manual, ZXCBTS(V5.4)CDMA Micro Base Transceiver Stations/RF Remote Stations Technical Manual, ZXCBTS(V5.4)CDMA Micro Base Transceiver Stations/RF Remote Stations Hardware Manual, ZXCBTS(V5.4)CDMA Micro Base Transceiver Stations/RF Remote Stations Maintenance Manual

3. Installation Acceptance Report, Test Acceptance Report

Installation Acceptance Report and Test Acceptance Report should be offered to you by the equipment provider during delivery. Installation Acceptance Report is filled after the BTS installation completes. Test Acceptance Report is filled

during the BTS commissioning.

2-4

3 Open-box Inspection

 Summary

Describing the inspection procedures.

Describing the open-box procedures.

3.1 Checking Packing List and Goods

 Caution Because ZXCBTS equipment is expensive, ensure that it is packed well and the flags for avoiding water and vibrations are marked. Load and unload the equipment gently, and avoided damage from sunshine and rain.

1. Check the “ZTE delivery sheet”.

2. Open-box inspection should be done by the engineering supervisor and your

representative. First, check if the total quantity of the goods is correct according

to the packing list, if the packing boxes are in good condition, and if the delivery

location is the right installation site.

3. Next, open the boxes and the engineering supervisor should check the goods

based on the packing list. Open-box Inspection Report is put in the packing box numbered 1#. Open the 1# box and take out the Open-box Inspection Report to

check if the total quantity of the goods is consistent with the checklist, and then

archive the report.

4. During the inspection, if loss of goods, lack of goods, error delivery or any

damage is found, find out the cause and feedback to the ZTE headquarter for

handling.

5. The goods are packed in either cartons or wooden boxes. You need to open them

on site using different tools.

3-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

3.2 Packaging

 Note The cabinets of micro-BTS and remote stations are the same in structure, so is the packaging method.

Put the support and other accessories of the ZXCBTS cabinet into the wooden box.

In the wooden box, the cabinet is packed with foam boards, a bubble bag and a plastic

bag. After opening the box, you need not uplift it but directly take the equipment out.

When carrying the box, be cautious to prevent the cabinet from being damaged.

The packing box for the ZXCBTS cabinet is shown in Fig. 3.2-1.

Goods:

CDMA micro -BT S

ZTE CORPORATION

ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhe n, P.R.Chi na Postcode: 518057 Tel: (+86755) 6790000 Customer Support Cente r: 8008301118

Net Weight: (Kg) Volume: 81x52x40 (cm) Qty. : Packing List:

Fig. 3.2-1 Packing Box for ZXCBTS Cabinet

3.3 Open-box Procedures

Follow the steps below to open the box:

1. Open the cover board.

2. Remove the foam boards.

3. Take the micro-BTS out directly.

See Fig. 3.3-1.

3-2

Chapter 3 Open-box Inspection

Accessories

Micro-BTS

)

(

)

(

Fig. 3.3-1 Schematic Diagram for Opening a Box

3-3

4 Installation of Cabinet

 Summary

Describing the procedures to install the

micro-BTS/remote station cabinet

Describing the possible installation modes

4.1 Installation Flow

 Note The cabinets of ZXCBTS micro-BTS/remote stations are the same in structure, so is the installation method.

The cabinet can be installed in two modes: on pole or on wall. The installation flow is

shown in Fig. 4.1-1.

4-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Installation on pole

Install t he sup p ort

Outdoors

Install the sunshade cover

Install t he cabinet

Ins tallation check

End

Installation on wall

Ins tall the support

Indoors

4.2 Installation Modes

 Note The cabinets of ZXCBTS micro-BTS/remote stations are the same in structure, so is the installation method.

As shown in Fig. 4.1-1, the cabinet can be installed either on pole or on wall based on

the actual environment.

4.2.1 Installing Cabinet on Pole

1. Disassemble the support from the cabinet.

2. Secure the support onto the pole with fixing plates and 260mm-long bolts. The

diameter of the pole should be between 60mm and 90mm. 75mm is

recommended. See Fig. 4.2-1.

If the equipment is to be installed outdoors, face the front side southward and

Fig. 4.1-1 Flow of Installing the Cabinet

the back side northward (This rule is applicable to the case that the equipment is

4-2

Chapter 4 Installation of Cabinet

installed in the Northern Hemisphere. If it is installed in the Southern

Hemisphere, the opposite rule should be applied).

3. Install the sunshade cover onto the support with four M4 bolts. See Fig. 4.2-4.

4. Hold the cabinet to hang it onto the support, then push it into the shelf. See Fig.

4.2-2.

5. Align the bolt holes on the support with those on the cabinet, and then screw

down four M8 hexagon bolts. See Fig. 4.2-3.

6. On the cabinet base there are hangers for rope. If necessary, use the rope to hang

the cabinet onto the pole.

See Fig. 4.2-1 for the schematic diagram of cabinet fastened on pole.

Bolt

Flat washer

Support

M12 nut,

spring washer,

flat washer

Pole

Fixing plate

Fig. 4.2-1 Schematic Diagram of Fastening the Cabinet onto the Pole (step 1)

4-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Fig. 4.2-2 Schematic Diagram of Fastening the Cabinet onto the Pole (step 2)

Fig. 4.2-3 Schematic Diagram of Fastening the Cabinet onto the Pole (step 3)

4-4

Chapter 4 Installation of Cabinet

Fig. 4.2-4 Schematic Diagram of the Cabinet Fastened onto the Pole

 Caution For your safety, be sure to wear the safety belt when working at heights and the safety helmet when working at grounds. It is prohibited to work in thunder storm weather.

4-5

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

4.2.2 Installing Cabinet on Wall

1. Disassemble the support from the cabinet.

2. Mark four points on the wall based on the four holes on the support, and then

drill four holes with a percussive drill (using M12 drill bit). Secure the support

onto the wall with four M10 expansion bolts. See Fig. 4.2-5.

3. Hold the cabinet to hang it onto the support, and then push it into the shelf.

4. Align the bolt holes on the support with those on the cabinet, and then screw

down four M8 hexagon bolts.

5. Install the sunshade cover if the equipment is to be installed outdoors.

See Fig. 4.2-6 for the schematic diagram of installing cabinet on wall.

Wall

Support

Exp ansion bolt

Hexagon n ut

Washer

Fig. 4.2-5 Schematic Diagram of Installing the Support onto the Wall

4-6

Chapter 4 Installation of Cabinet

Fig. 4.2-6 Schematic Diagram of Installing the Cabinet onto the Wall

 Note The modules and cables in micro-BTS (including ultra-wide coverage micro-BTS) and remote stations have been installed, connected and tested before delivery. Before commissioning, you only need to check if they are loose due to conveyance. Refer to Chapter 7 for the connection of cables between cabinets. According to the configuration requirement, you might need to add optical fiber modules or CSM5000 expansion modules in the expansion slots of the corresponding BDM board. If any fault occurs, the maintenance personnel can refer to this manual for simple maintenance.

4-7

5 Installation of Power Supply System

 Summary

Describing the methods for installing the power

supply system..

Describing the procedures to install the power

supply system..

5.1 Introduction to Power Cables

The micro-BTS/remote stations are supplied by 120V AC power or -48V DC power.

AC micro-BTS are supplied by 120V AC power, and DC micro-BTS are supplied by

-48V DC power.

5.1.1 -48V DC Power Cable

The ZTE -48V DC ZXCBTS equipment is equipped with a piece of 10m-long cable,

which can meet the installation requirement in most cases. If you need to assemble the

cable on site in special cases, follow the instructions in this section. The DC power

cable connector is a four-pin connector, and the power cable adopts four-core cable, as

shown in Fig. 5.1-1. The corresponding relationship between the core wires and the

binding posts are listed in Table 5.1-1.

Fig. 5.1-1 Four-pin Connector and Four-core Power Cable

5-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Table 5.1-1 Corresponding Relationship between Core Wires and Binding Posts

Binding Post No. Color of Core Wire Power Polarity

1 Blue -48V

2 Red -48V

3 Black -48VGND

4 Olivine -48VGND

5.1.2 120V AC Power Cable

The ZTE 120V AC ZXCBTS equipment is equipped with a piece of 10m-long cable,

which can meet the installation requirement in most cases. If you need to assemble the

cable connector on site in special cases, follow the instructions in this section. The AC

power cable connector is a three-pin connector, and the power cable adopts three-core

cable. Refer to Table 5.1-2 for the corresponding relationship between the core wires

and the binding posts.

Table 5.1-2 Corresponding Relationship between Core Wires and Binding Posts

Binding Post No. Color of Core Wire Power Polarity

1 Yellow and green PE

2 Brown L

3 Blue N

5.2 Connection of Power Cables

120V AC power supply and -48V DC power supply are used for the micro-BTS and

remote stations. A waterproof connector is used to connect the power to the POWER

terminal at the bottom of a cabinet, as shown in Fig. 5.2-1.

1. Select a suitable type of power cable.

If the cabinet is installed outdoors, outdoor shielded power cables should be

used for power supply, which can withstand the influences of ultraviolet lights,

rains and temperature changes. If common three-core AC power cables are used

in special cases, PVC pipes should be added for protection.

If the cabinet is installed indoors, common three-core power cables can be used

for power supply.

5-2

Chapter 5 Installation of Power Supply System

2. Power cables should be laid in order. If they are laid in parallel with T1 signal

cables, an interval of 200mm is required between them.

3. Upon bundling of power cables, the space between two cable ties should be less

than 0.5m to prevent friction with the tower upon swing of cables and avoid

damage of power cable sheath.

The power cable with round connector fo connecting the POWE terminal at the botto of the cabinet

PGND terminal

of the cabinet

Fig. 5.2-1 Connection of Power Cables and Grounding Cables at the Bottom of a Cabinet

5.3 Assembling Power Cable Connector

5.3.1 Assembling -48V DC Power Cable Connector

Step 1: Put the connector components 1, 2, 3, 4 and 5 onto the cable, as shown in Fig.

5.3-1.

Fig. 5.3-1 Assembling a Power Cable Connector (step 1)

5-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Step 2: Strip the 17mm-long sheath off the four-core cable at the end to be welded. If

the sheath of more than 17mm is stripped, the component 3 cannot press the cable tight;

if less than 17mm, inconvenience might be caused for installation. See Fig. 5.3-2.

Fig. 5.3-2 Assembling a Power Cable Connector (step 2)

Step 3: Strip the 5mm-long insulation layer off the four core wires respectively, twist

up the copper core wires and brush a slice layer of soldering tin on them, and then put a

10~15mm-long heat-shrink tube onto each core wire.

Step 4: Joint the core wires respectively with the binding posts of the component 6 by

welding them, push the heat-shrink tubes to the proper position and then make them

shrink, as shown in Fig. 5.3-3. Refer to Table 5.1-1 for the corresponding relationship

between the core wires and the binding posts.

Fig. 5.3-3 Assembling a Power Cable Connector (step 4)

5-4

Chapter 5 Installation of Power Supply System

Step 5: Screw to connect the component 5 with the component 6, as shown in Fig.

5.3-4.

Fig. 5.3-4 Assembling a Power Cable Connector (step 5)

Step 6: Push the components 2, 3 and 4 into the component 5, and then screw down the

component 1 onto the component 5. Be sure to screw the component 1 but not 5. See

Fig. 5.3-5.

Fig. 5.3-5 Assembling a Power Cable Connector (step 6)

5.3.2 Assembling 120V AC Power Cable Connector

The steps for assembling an AC power cable connector are the same as that for

assembling a DC power cable connector. The only difference is that the three-pin

connector and three-core power cable are used for AC power cables. Refer to the

preceding contents for the procedures and Table 5.3-1 for the corresponding

relationship between the core wires and the binding posts.

5-5

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Table 5.3-1 Corresponding Relationship between Core Wires and Binding Posts

Binding Post No. Color of Core Wire Power Polarity

1 Yellow and green PE

2 Brown L

3 Blue N

5-6

6 Installation of Grounding System

 Summary

Describing the method for installing the grounding

system

6.1 Introduction to the Grounding System

This section details the procedures to install the grounding system, including grounding

copper busbar and feeder cable grounding kit.

Grounding aims to protecting both the human being and the equipment against

lightning shock and electromagnetic interference.

The grounding system is composed of indoor groundings, outdoor groundings and

underground grounding net.

The grounding system of a ultra-wide coverage micro-BTS includes protection

grounding on the chassis, lightning arrester for RF components in the cabinet, for GPS

antenna, for T1 cables, for 120V AC power and for feeder cable grounding kit.

The customer needs to complete the construction of the basic grounding net and the

grounding system of the tower and other buildings, and offer the points for connecting

the indoor and outdoor grounding busbars to the grounding net through different

50mm

the grounding copper busbar, and the conductor led from the -48VGND of the shelf is

connected to the DC power copper busbar.

Each feeder cable should be connected to the outdoor grounding copper busbar through

wires. The conductor led from the PGND terminal of the shelf is connected to

the cable grounding kit before being led into the equipment room. See Fig. 6.1-1.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Tower platform

Feeder cable gro un din g kit

Grounding cable (35mm

DC power rack

PGNDs of all devices in the

equipment room (including the

cabling rack) are connected to

the indoor grounding busbar

Outdoor

grounding

busbar

Feeder cable

Grounding cable (50mm

Indoor

gro unding

busbar

Micro-BTS

)

Fig. 6.1-1 Schematic Diagram of Grounding Connections

Other devices

)

6.2 Installing Grounding System

6.2.1 Installing Outdoor Grounding Copper Busbar

The outdoor grounding copper busbar functions in lightning protection. It is usually

installed on the wall outside the equipment room, and the best position is right under

the feeder cable window or on the rain-proof wall of the feeder cable well on the top of

a building.

6-2

Chapter 6 Installation of Grounding System

In actual installation, first determine the position for the copper busbar based on the

engineering design drawing, and then install the busbar on the wall with expansion

bolts. See Fig. 6.2-1 for the appearance of the grounding copper busbar.

Fig. 6.2-1 Appearance of a Grounding Copper Busbar

6.2.2 Installing the Grounding System of Micro-BTS

The cabinets of ultra-wide coverage micro-BTS/remote stations are equipped with

PGND terminals, as shown in Fig. 6.2-2. The PGND terminal is connected to the

indoor grounding copper busbar via the 16mm

the equipment is installed outdoors, the PGND terminal is connected with the

grounding cable from the tower or from the top of the building in the crimping

connection mode.

yellow or olivine conducting wire. If

6-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

PGND

terminal of

the cabinet

Fig. 6.2-2 Connection of Power Cable and PGND Cable at the Bottom of a Cabinet

6.2.3 Installing Feeder Cable Grounding Kit

 Caution: It is prohibited to install the grounding kit in thunderstorm weather; otherwise, the installation personnel might be hurt. When installing the grounding kit, be sure to keep the feeder cable at the joint straight.

6.2.3.1 Grounding Principles of Primary Feeder Cable

1. Generally, each primary feeder cable should be grounded at least three times for

lightning protection, that is, on the tower platform, between the tower and the

outdoor cabling rack, and on the wall before the feeder cable is led into the

equipment room. If the primary feeder cable is more than 60 meters long, a

lightning grounding kit should be installed every 20 meters.

2. The antenna feeder system, antenna mount and newly-installed cabling rack

should all be welded to the lightning protection net of the building. The feeder

cable should also be grounded at three points, that is, on the antenna pole, on the

rooftop, and on the wall before the feeder cable is led into the equipment room.

3. Before leading the primary feeder cable along the outdoor cabling ladder from

the top of the building to the equipment room, check whether the cabling ladder

is grounded. If not, request the network operator to accomplish it as soon as

possible.

6-4

Chapter 6 Installation of Grounding System

6.2.3.2 Procedures to Install a Grounding Kit

1. Prepare such tools as paper knife, straight screwdriver, spanner and sharp nose

pliers.

2. Choose a suitable position for installing the grounding kit, and cut the sheath off

the 7/8" feeder cable based on the size of the grounding kit. The structure of a

grounding kit is shown in Fig. 6.2-3.

Grounding wire clip

Grounding terminal

3. Lead the grounding cable of the lightning grounding kit to the grounding net.

Feeder cable

Grounding cable

Out-layer copper

core of feeder cable

Sheet cop per of

feeder cable

Fig. 6.2-3 Structure of a Grounding Kit

Keep the angle between the grounding cable and the primary feeder cable no

more than 15°.

If the antenna feeder system is installed on a tower, lead the grounding cable

downward along the tower.

If the antenna feeder system is installed on the top of a building, lead the

grounding cable to the lightning protection net.

4. Before installing the grounding kit, wrap the waterproof adhesive tape around

the grounding cable near the grounding copper for sealing, as shown in Fig.

6.2-4.

6-5

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Fig. 6.2-4 Schematic Diagram of Wrapping Waterproof Adhesive Tape Around the Grounding Cable

5. Clamp the external conductor with the grounding copper and clip tightly.

6. Seal the joint between the grounding kit and the feeder cable as follows:

 First wrap the waterproof adhesive tape and then the PVC tape around the joint.

 Wrap the waterproof adhesive tape circularly from bottom upward, and then

from top downward, finally from bottom upward again. Note that the next circle

covers 1/2 of the previous circle.

7. Connect the grounding terminal of the grounding kit to the tower body or the

cabling rack on the top of the building (the cabling rack is connected to the

lightning protection net). Remove the paint and oxide at the junction within the

radius of 13mm and then coat the clean area with antioxidant cream. After the

connection, paint the area with antirust paint.

8. Before the primary feeder cable is led into the equipment room, connect the

grounding terminal of the grounding kit to the outdoor grounding busbar.

6-6

7 Connection of Cables

 Summary

Describing the connection of internal cables.

Describing the connection of external cables.

7.1 Checking Internal Cable Connections

7.1.1 Type and Configuration of Internal Cables

There are 422 or 485 internal cables totally. Refer to Table 7.1-1 for the types and

configurations of internal cables in micro-BTS/remote stations.

Table 7.1-1 List of Types and Configurations of Internal Cables

Type Name Applied Equipment

RF cables

RF21 Single-carrier 800M micro-BTS/remote stations

RF22 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF23 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF24 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF25 All micro-BTS/remote stations

RF26 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF27 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF28 Single-carrier and double-carrier 800M micro-BTS/remote stations

RF32 Single-carrier 1.9G micro-BTS/remote stations

RF33 Single-carrier and double-carrier 1.9G micro-BTS/remote stations

RF34 Single-carrier and double-carrier 1.9G micro-BTS/remote stations

RF35 Single-carrier 1.9G micro-BTS/remote stations

RF36 Single-carrier and double-carrier 1.9G micro-BTS/remote stations

RF37 Single-carrier 1.9G micro-BTS/remote stations

RF38 Single-carrier and double-carrier 1.9G micro-BTS/remote stations

RF42 All double-carrier micro-BTS/remote stations

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Type Name Applied Equipment

RF43 All double-carrier micro-BTS/remote stations

RF29 All single-carrier and double-carrier micro-BTS

RF30 Single-carrier and double-carrier 800M micro-BTS

RF31 Single-carrier and double-carrier 800M micro-BTS

Clock cables

Communication

cables

Power cables

Fan cables

Grounding

cables

Alarm cables

RF39 Single-carrier and double-carrier 1.9G micro-BTS

RF40 All single-carrier and double-carrier remote stations

RF41 All single-carrier and double-carrier remote stations

BDM-GPS All single-carrier and double-carrier micro-BTS

MPA

CONTL

RXTDX All micro-BTS/remote stations

DCDX01 All micro-BTS/remote stations

DCDX02 All micro-BTS/remote stations

DCDX03 All micro-BTS/remote stations

ACDX01 All AC-powered micro-BTS/remote stations

ACDX02 All AC-powered micro-BTS/remote stations

ACDX03 All micro-BTS/remote stations configured with heater

ACDX04 All AC-powered micro-BTS/remote stations

F-DC

PWR-001

F-DC

PWR-002

F-DC

PWR-003

F-FAN-004 All single-carrier and double-carrier micro-BTS

F-FAN-005 Single-carrier and double-carrier 20W micro-BTS/remote stations

F-FAN-006 Single-carrier and double-carrier 20W micro-BTS/remote stations

DX01 All micro-BTS/remote stations

DX02 All micro-BTS/remote stations

DX03 All micro-BTS/remote stations

MONDX01 All micro-BTS/remote stations

MONDX02 All micro-BTS/remote stations

DX04 All single-carrier and double-carrier micro-BTS

DX05 All single-carrier and double-carrier remote stations

DX06 All micro-BTS/remote stations

All micro-BTS/remote stations

All DC-powered micro-BTS/remote stations

Among these cables, only ACDX04 (AC power cable) and F-DC PWR-002 (DC power

cable) are delivered with the equipment, and other cables have been connected in the

equipment before delivery.

7-2

Chapter 7 Connection of Cables

7.1.2 Connection of Internal Cables

Refer to Appendix B for the connection of internal cables.

7.2 Connecting External Cables

7.2.1 Connecting Optical Fiber

 Note The optical fiber connectors of micro-BTS/remote stations are SC connectors. The ODF or optical connection box provided is equipped with FC connectors by default. If there are special requirements on the connectors, contact ZTE for customization.

7.2.1.1 Selecting Optical Fiber

Different optical fibers are used for the connections between macro-/micro-BTS and

remote stations.

1. If a remote station is near to a relative micro-BTS, optical fiber is used directly.

The optical fiber adopts waterproof pigtail cable, and both ends are equipped

with waterproof blockers and SC connectors. See Fig. 7.2-1 for the structure of

the optical fiber.

Optical fiber core

wire (0.7m)

SC/ P C c o n ne c t o r

Waterproof

blo cker

Single-mode waterproof

pigtail cable

Optical fiber core

wire (0.7m)

Fig. 7.2-1 Structure of Optical Fiber (1)

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

The core wires at both ends are 0.7m long. Both ends of the optical fiber can

connect either a micro-BTS or a remote station.

You can choose 10m/20m/50m/100m-long optical fiber for this connection

based on the actual situation.

2. If an outdoor remote station is near to a relative indoor macro-BTS, optical fiber

is used for connecting them directly. The optical fiber adopts waterproof pigtail

cable, with both ends being SC connectors. In addition, one end is equipped with

a waterproof blocker. See Fig. 7.2-2 for the structure of the optical fiber.

Optical fiber core

wire (3m)

SC/PC

connector

Single-mode waterproof

pigtail cable

Waterproof blocker

Optical fiber core

wire (0.7m)

Fig. 7.2-2 Structure of Optical Fiber (2)

The core wires of the end equipped with a waterproof blocker are 0.7m long,

and those of the other end are 3m long. The end with a waterproof blocker is to

be connected with the remote station, and other end is used to connect the

macro-BTS.

You can choose 50m/100m-long optical fiber for this connection based on the

actual situation.

3. If a remote station is far from a relative macro-BTS and an ODF or optical

connection box is required, two pieces of optical fiber should be used for

connecting the macro-BTS with the ODF and the ODF with the remote station

respectively.

7-4

Chapter 7 Connection of Cables

1） Connection between the macro-BTS and the ODF

The indoor-type optical fiber is adopted, with one end being SC/PC connectors

and the other end being FC/PC connectors. See Fig. 7.2-3 for the structure of the

optical fiber.

SC/PC connector

FC/PC connect or

Single-mode optical fiber

Fig. 7.2-3 Structure of Optical Fiber (3)

The SC/PC connectors are used to connect the macro-BTS, and the FC/PC

connectors are used to connect the ODF.

There is only one option for this connection: 30m-long optical fiber.

2） Connection between the ODF and the remote station

The optical fiber adopts waterproof pigtail cable. The end equipped with a

waterproof blocker uses SC/PC connectors, and the other end offers FC/PC

connectors. See Fig. 7.2-4 for the structure of the optical fiber.

Optical fiber core wire

(3m)

SC/PC connector

Single-mode waterproof

pigtail cable

Waterproof

blocker

FC/PC connector

Optical fiber core wire

(0.7m)

Fig. 7.2-4 Structure of Optical Fiber (4)

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

The core wires of the end equipped with a waterproof blocker are 0.7m long,

and those of the other end are 3m long. The end with a waterproof blocker is to

be connected with the remote station, and the other end is to be connected with

the ODF.

You can choose 50m/100m-long optical fiber for this connection based on the

actual situation.

Caution: If the ODF uses cubical connectors, contact ZTE in advance.

7.2.1.2 Laying Optical Fiber

1. Connecting optical fiber for a micro-BTS/remote station

Because the end of the optical fiber for connecting a micro-BTS/remote station

is equipped with a waterproof blocker, you need to remove the cover of the

optical interface at the bottom of a micro-BTS/remote station first, insert the

pigtail fiber into the cabinet, and then screw down the waterproof blocker into

the optical interface, as shown in Fig. 7.2-5.

Fig. 7.2-5 Schematic Diagram of Connecting Optical Fiber

Waterproof

blocker

Opt ical

fiber

2. Connecting optical fiber for a macro-BTS

If the optical fiber is used to connect the Local Fiber Module (LFM) of a

macro-BTS, first insert the optical fiber into an interface on the front panel of

7-6

Chapter 7 Connection of Cables

the LFM, lay the optical fiber along the horizontal cabling trough on the top of

the TRX layer, and then along the vertical cabling trough on the left of the shelf;

next, open the cover of the standby interface marked with “BTM ANT” on the

top of the macro-BTS, pull the optical fiber out of the shelf and then lay it onto

the cabling rack on top.

3. Requirements for laying optical fiber

The optical fiber should be arranged in order, with the interval for cable ties less

than 0.5m.

The minimum bending radius of the outdoor-type optical fiber is 90mm, and that

of the indoor-type optical fiber is 30mm.

7.2.2 Connecting Multi-carrier Interconnection RF Cables

If a double-carrier & single-sector micro-BTS/remote station is required, two cabinets

need be configured. These two cabinets should be connected by cables to achieve

transmission of diversity antenna signals.

When a micro-BTS cabinet and a remote station cabinet form a double-carrier &

single-sector micro-BTS system, two pieces of RF cables need be added to

cross-connect the RFE-ANT0 interface with the EXTEND interface at the bottom of

the two cabinets respectively.

Similarly, when two double-carrier remote station cabinets form a double-carrier

remote station and it is used in cooperation with a double-carrier macro-BTS, two

pieces of RF cables need be added to cross-connect the RFE-ANT0 interface with the

EXTEND interface at the bottom of the two cabinets respectively.

Refer to Appendix B for the configuration of internal cables in a double-carrier system.

The interconnection RF cable is 3m long, with both ends being RF N connectors. It is a

finished product delivered with cabinets. It is named as “F-RF05-009”. See Fig. 7.2-6

for the cable connections between two cabinets.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

(3m)

Micro-BTS/remote

station

EXTEND

RFE-ANT0

Interconnection RF

cable

Fig. 7.2-6 Connection of Interconnection RF Cables

7.2.3 Waterproof Processing of Joints

In case of double-carrier configuration, the joints between the sockets at the bottom of

Remote station

EXTEND

RFE-ANT0

the cabinets and the connectors of the interconnection RF cables should be wrapped

with waterproof adhesive tape. In addition, the joint between the socket at the bottom

of a 20W micro-BTS (M802T micro-BTS) cabinet and the connector of the external

fan cable should also be wrapped with the adhesive tape. You need to do the following:

1. Secure the relative connectors and sockets.

2. Implement waterproof processing to the joints.

1） Wrap the joints with the waterproof adhesive tape from the top of the connectors.

The first layer should be wrapped in the same direction as for fastening the cable

connectors.

2） Stretch the tape with force and wrap it circularly for three layers totally. Note

that the next circle covers 1/2 of the previous circle, and the wrap stops at the

position about 10cm away from the joint.

3） Grip the joint with force to make the tape stuck firmly with the joint.

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Chapter 7 Connection of Cables

4） Wrap two layers of PVC tape around the waterproof adhesive tape in the same

way as for wrapping the waterproof adhesive tape.

5） Finally wrap a layer of anti-ultraviolet tape.

7.2.4 Connection of Trunk Cables

There are T1 interfaces at the bottom of the primary cabinet of a micro-BTS for

connecting T1 cables (100-ohm coaxial cables), as shown in Fig. 7.2-7.

T1 cable

Fig. 7.2-7 Connection of T1 Cables

1. Select T1 cables.

Micro-BTS can be installed outdoors, so PE-sheath T1 cables are used generally.

If common T1 cables are used in an outdoor micro-BTS, PVC pipe should be

added for protection.

2. Lay the T1 cables in order. Keep T1 cables and AC power cables separate with

distance of more than 200mm.

3. When laying T1 cables on a tower, the space between two cable ties should be

less than 0.5m to prevent friction with the tower upon swing of cables and avoid

damage of T1 cable sheath.

7-9

8 Installation of Primary Antenna Feeder System

 Summary

Describing the composition of the primary antenna

feeder system.

Describing the procedures to install the primary

antenna feeder system.

8.1 Preparations

Before installing the primary antenna feeder system, check the qualification of the

installation personnel for working at heights, installation environment, security

measures, installation tools and system components, for the purpose of ensuring the

successful installation.

8.1.1 Installation Personnel

The antenna feeder system is installed by the professional installation personnel under

the monitoring of the installation supervisor.

The installation supervisor should be familiar with the materials, tools and operations

for the installation, who is responsible for assigning suitable work for the installation

personnel and recording the actual engineering data.

The installation personnel should be skillful and healthy. Those who work at heights

should have obtained the corresponding qualification, have no acrophobia, observe the

security regulations, and have purchased the personal accident insurance. In addition,

they are prohibited from drinking alcohol when working.

8-1

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

8.1.2 Installation Environment

Check if the outdoor lightning grounding cable is well grounded and if its cross-section

area is more than 50mm

lightning rod/lightning grounding point/outdoor cabling rack, the firmness and

wind-resistant ability of the pole meet the design requirements. In addition, check if the

necessary tools and assisting materials are prepared, and if the route for laying the

primary feeder cables is determined through negotiation.

The equipment provider presents the requirements on the installation of the antenna

mount based on the structure and size of the antenna, and the network operator should

install the antenna mount as required.

The network operator is also responsible for the installation of the outdoor cabling rack,

lightning rod, lightning grounding point and outdoor lightning grounding cable.

Moreover, the network operator needs to drill holes on wall or rooftop for installing the

feeder cable window as one of the equipment room conditions.

. Check if the distance between the antenna pole and the

8.1.3 Security Measures

 Caution The installation personnel working at heights must wear the safety belt, and those working on ground must wear the safety helmet. They must wear working clothes and shoes causing no slips when climbing up the tower.

1. Safety precautions should be stressed to the installation personnel.

2. The outdoor installation should be conducted in sunny days without strong wind.

3. Obvious signs should be set in the installation site to notify irrelative people to

keep away from the site. The installation personnel working on ground are

obligate to keep irrelative people, esp. children away from the site. The tools

used on the tower and some metal components might slip to cause casualties, so

they must be put in a canvas tool bag when not used, and the bag must be sealed

immediately after you open it for a tool or component.

8.1.4 Installation Tools

1. Measurement tools: A compass, multimeter, inclinometer and tape measure;

2. Communication tools: Two mobile phones;

8-2

Chapter 8 Installation of Primary Antenna Feeder System

3. Raising tools: Pulley block and rope;

4. Special tools: Cutter for cutting primary feeder cables and tools for assembling

connectors;

5. General tools: Adjustable wrench, sharp nose pliers, diagonal pliers, electrical

knife, file and hacksaw;

6. Protection tools: Safety belt, safety helmet, safety rope, thick working clothes,

RF prevention clothes, canvas tool bag, gloves, and multi-purpose sockets;

7. Other tools: Herringbone ladder and the wooden wheel axis for uplifting the

primary feeder cable (which can be borrowed locally).

8.2 Composition and Installation Requirements of Antenna Feeder System

8.2.1 Composition

The antenna feeder system is composed of antennae, antenna jumper cables, primary

feeder cables, lightning arrester, jumper cables on top and grounding parts, as shown in

Fig. 8.2-1.

8-3

ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Lightning rod

Antenna (2 sets)

Jumper cable (1/2", 2 pieces)

Lightning grounding kit

Primary feeder cable (7/8", 2 pieces)

Equipme nt room

Lightning arre ste r

Jumper cable

(1/2", 2 pieces)

Tower

Lightning

grounding kit

Lightning grounding kit

Cabling ra ck

Fig. 8.2-1 Typical Structure of the Antenna Feeder System

Micro-

BTS

8-4

Chapter 8 Installation of Primary Antenna Feeder System

8.2.2 Technical Parameters

1. Height of antenna

It depends on the networking plan.

2. Azimuth angle of antenna

It depends on the networking plan.

3. Pitch angle of antenna

It depends on the networking plan. Generally, it is between 0° and 10°

(adjustable).

4. Pointing direction of antenna

It depends on the azimuth angle of the antenna. Two antennae of the same sector

must point to the same direction.

5. Distance between two diversity antennae

Two antennae of one sector are diversity reception antennae to each other. They

have the same height, but they should be distanced as much as possible. If the

following formula is met, the installation requirement is met.

d ≥ 10λ~20λ (or H/d=11)d: Distance between two diversity antennae; H: Height

from the antenna to the ground. If the carrier is 1.9GHz, the diversity distance

should be more than 1.5m. If the carrier is 800MHz, the diversity distance

should be more than 3.5m.

8.3 Installation Flow

The antenna installation flow is as shown in Fig. 8.3-1.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

St a r t

Determine the

installation position

Directional

antenna

Types of Antenna

Omni

antenna

Assemble

com ponents of a

directi onal ant enna

Raise/carry th e

antenna

Se cur e t h e

directional antenna

Adj ust the directi on

and pitch angle of the

directi onal ant enna

Co nnect th e antenna

wit h t he jump er cabl e

and t hen seal t hei r joint

Fig. 8.3-1 Antenna Installation Flow

Fasten the antenna

End

Raise/carry the

antenna

Secure t he omni

antenna

Keep t he omni

antenna vertical

Co nnect th e ant enna

wit h t he j umper cabl e

and t hen seal thei r join t

8.4 Installation of Antenna

 Caution:

1. Be cautious during the installation to prevent personal injury or equipment damage.

2. Measures should be taken to protect human body against the radiation when adjusting the antenna, for example, the installation personnel should wear the anti-radiation clothes.

8.4.1 Determining Installation Location

The location for installing the antenna should be determined based on the engineering

design drawing. If the actual location of the antenna mount is different from the

engineering design, the installation engineers, customer representative and design unit

should negotiate to complete the second design according to the requirements of the

8-6

Chapter 8 Installation of Primary Antenna Feeder System

BTS on network coverage, space diversity, azimuth angle and pitch angle, thus

ensuring desirable network coverage in future.

8.4.2 Installing Accessories of Directional Antenna

Some fasteners need be installed on a directional antenna first. For example, the

KATHREIN antenna need be installed with the fasteners “738516” and “737974”.

Before fastening the antenna, first install the fastener “737974” with angle adjustment

setting onto the top and bottom of the antenna (as shown in Fig. 8.4-1), and then

connect the fastener “737974” and the pole fastener “738516” with short bolts. During

the installation, spring washers and flat washers are used. Please refer to the guide

book delivered with the equipment for the information of specific fasteners to be used.

Assemble the fasteners and angle adjustment accessories onto the antenna in advance

before installing the antenna on the tower.

Antenna pole

Scal e

φ75 mm

738 51 6

Connect them with two short bolts and nuts

737 974

Directional

Co nnect th e antenna and th e fastener with

short bolts (spring washers and flat

wash ers are ad ded, and nut s are eq uipped

with waterproof washers)

KAT HREIN

antenna

After th e conn ecti on, m ove t he

antenna right or left to adjust the

azim ut h ang le

After th e conn ecti on, m ove t he

top of the antenna up and down

to adjust the pitch angle

737 974

Fig. 8.4-1 Installation of the KATHREIN Antenna

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

8.4.3 Transporting and Raising Antenna

 Caution: Both the installation personnel working on tower and those working under tower should cooperate to raise the antenna onto the tower with rope. Note to keep the antenna away from the tower body to prevent any damage to the antenna when pulling it up the tower.

Use rope and pulley block to raise the antenna, 3-m antenna jumper cable and other

accessories (including tools, safety belt, adhesive tapes and cable ties) up to the tower

platform, and then put them in a safe place to avoid falling. Note that the fasteners and

other metal tools must be put in a canvas tool bag before pulling them up. When raising

a directional antenna or an omni antenna, tie a knot at each end of the antenna to

facilitate the cooperation between the installation personnel on and under the tower, as

shown in Fig. 8.4-2.

If an antenna is to be installed on the top of a building, carry the antenna and other

accessories to the installation site manually.

Pulley block

Rope for

raising the

antenna

Tie a knot with rope at each end of the antenna

Pull the antenna away from the antenna to avoid damaging the antenna

Fig. 8.4-2 Schematic Diagram of Raising the Antenna to the Tower Top

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Chapter 8 Installation of Primary Antenna Feeder System

8.4.4 Installing and Adjusting Directional Antenna

 Note: The antennae of different providers require different installation modes. This section takes the installation of the KATHREIN antenna as an example. Before the installation, read the installation manual delivered with the antenna carefully.

Install a directional antenna by the following steps:

1. Fastening the directional antenna onto the pole

Fasten the fastener of the directional antenna with the pole. Do not screw the

screws too tight or too loosely. If they are too loose, the antenna might fall off; if

they are too tight, it is inconvenient to adjust the azimuth angle and pitch angle

of the antenna later.

2. Adjusting the azimuth angle of the antenna

1） Measure the azimuth angle of the antenna with a compass. Then check the

engineering design drawing for the antenna direction.

2） Adjust the orientation of the antenna by twisting it slightly, as shown in Fig.

8.4-1. At the same time, measure the orientation of the antenna with the compass.

Keep adjusting until the deviation is within the design requirement, that is, less

than or equal to 5° generally.

3） After the adjustment, fasten the fastener 738516 tight.

3. Adjusting the pitch angle of the antenna

1） Adjust the bubble inclinometer to the angle as required in the engineering

design.

2） Adjust the pitch angle of the antenna slightly until the bubble of the inclinometer

is located in the middle when you measure the pitch angle with it, as shown in

Fig. 8.4-3.

3） After the adjustment, fasten the fastener 737974 tight.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Fig. 8.4-3 Schematic Diagram of Adjusting the Pitch Angle of the Antenna

8.4.5 Installing and Adjusting Omni Antenna

Install an omni antenna by the following steps:

1. Fasten the antenna (the part with jacket) onto the antenna mount with two fixing

clips. Do not fasten it too tight or too loosely. If too tight, the jacket might be

damaged; if too loosely, the requirements on weight-bearing and wind-resistant

abilities cannot be met.

2. Check if the antenna is vertical. If so, fasten the antenna with the pole tight.

3. Protrude the antenna mount installed with the antenna out of the tower platform.

Adjust the mount to make the antenna vertical.

8.4.6 Connecting Jumper Cable with Antenna and Sealing Their Joint

 Note: You can conne ct the jumper cable with the antenna and seal their joint before installing the antenna onto the pole, which can shorten the time for working at heights and reinforce the connection and waterproof performance of the joint.

The operations are as follows:

1. Insert the jumper cable connector into the antenna interface and then screw them

tight.

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Chapter 8 Installation of Primary Antenna Feeder System

2. Implement waterproof processing to the joint between the antenna and jumper

cable.

1) Wrap the joint with the waterproof adhesive tape from top download. The first

layer should be wrapped in the same direction as for fastening the antenna

jumper cable.

2) Wrap the waterproof tape circularly for three layers totally. Note that the next

circle covers half of the previous circle, and the wrap stops at the position 10cm

away from the joint.

3) Grip the joint with force to make the tape stuck firmly with the joint.

4) Wrap two layers of PVC tape around the waterproof adhesive tape in the same

way as for wrapping the waterproof adhesive tape.

5) Finally wrap a layer of anti-ultraviolet tape.

8.5 Installation of Feeder Cable Window

 Note: The size of the feeder cable window provided by ZTE is 400mm×400mm. It is a four-hole window and 12 pieces of feeder cables can pass through it. A 300mm×300mm hole should be drilled on the wall for the installation of this feeder cable window. If a special feeder cable window is used, a hole should be drilled based on the actual size of it. No feeder cable window is needed when a micro-BTS is installed outdoors.

The feeder cable window is usually installed on the outside wall of the equipment room,

right between the indoor and outdoor cabling racks.

If the primary feeder cable window is installed on the rooftop, you need to take

measures to make it waterproof. For example, you can seal it with asphaltum or glass

cement.

The feeder cable window has four holes and can be connected with 12 pieces of feeder

cables at most, as shown in Fig. 8.5-1. Follow the steps below to install a feeder cable

window:

1. Determine the installation location based on the engineering design drawing.

2. Drill a hole on the wall according to the size of the feeder cable window used.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

3. Drill holes for installing expansion bolts with a percussive drill, and then secure

the main board of the feeder cable window with the expansion bolts.

4. Install the sealing pad and gasket when leading the primary feeder cables into

the equipment room.

5. In cold and sandy places, install a wooden board in the equipment room to block

sand blown by the wind and preserve heat.

Fig. 8.5-1 Structure of a Feeder Cable Window

8.6 Connection of Feeder Cable

This section describes how to assemble the 7/8” feeder cable connectors, how to

connect the jumper cable & the primary feeder cable/antenna and seal their joint, and

how to lay and fasten the feeder cables.

The complete structure of a feeder cable of a micro-BTS/remote station is shown in Fig.

8.6-1. If a micro-BTS is installed outdoors and it is near to the antenna, the 1/2” feeder

cable can be used for the primary feeder cable.

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Chapter 8 Installation of Primary Antenna Feeder System

Antenna jumper cable

Label

Feeder cable

Label

Customized jumper

cable on top

Male N connector

Fig. 8.6-1 Structure of the Feeder Cable of a Micro-BTS/Remote Station

8.6.1 Determining Route for Feeder Cable

The cabling route of the feeder cables should be determined according to the

engineering design drawing. If an alteration is necessary, negotiate with the customer

representative for solution. Note that the primary feeder cables should be as short as

possible.

8.6.2 Assembling Connectors of Primary Feeder Cable

 Caution: Assembling feeder cable connectors is the most important procedure in the installation of the antenna feeder system, for the quality of them directly affects the performance of both equipment and network. Be cautious when using the cutter, for it is very sharp. This section describes how to assemble connectors for the ROSENBERGER 7/8” feeder cable. For the assembly of connectors for other types of feeder cable or feeder cable of other manufacturers, refer to the specific installation manual.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

1. The cutter used is shown in Fig. 8.6-2.

Fig. 8.6-2 Cutter for Assembling 7/8” Feeder Cable Connectors

2. Pull the feeder cable straight (about 150mm long) at the end to be installed with

a connector, and then strip 50mm-long sheath off the cable with the cutter.

3. Put the feeder cable on the trough of the cutter EASIAX, reserve four

corrugations at the end of the blade, and then press down the handle. The main

blade should point to one wave crest.

4. Screw to shut the cutter closely. In this way, the internal and external copper

conductors of the feeder cable are severed, and at the same time the cable sheath

is severed by the assisting blade, as shown in Fig. 8.6-3.

Fig. 8.6-3 Schematic Diagram of Cutting the Feeder Cable with the Cutter

5. Check if the cutting position is correct, as shown in Fig. 8.6-4.

Wave crest

Fig. 8.6-4 Schematic Diagram of Correct Cutting Size

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Chapter 8 Installation of Primary Antenna Feeder System

6. Disassemble the feeder cable connector into two parts: front part and back part.

And then insert the feeder cable into the back part until it contacts the first

corrugation of the cable.

7. Insert the tube expander of the cutter into the feeder cable and then screw left

and right to expand the external copper conductor, as shown in Fig. 8.6-5.

Fig. 8.6-5 Schematic Diagram of Expanding the External Copper Conductor

8. Check if there are copper bits left in the conductor and if the conductor is

expanded evenly. Pull the back part of the connector with force to check if it is

connected firmly with the cable. If any requirement cannot be met, redo the

above steps.

9. Connect the front part with the back part, as shown in Fig. 8.6-6.

Fig. 8.6-6 Schematic Diagram of Connecting the Front Part with the Back Part of the Connector

10. Clamp the front part of the connector with a wrench and use another wrench to

clamp the back part. Twist the back part but keep the front part unmoved until

they are connected firmly.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Twis t this wrench only

Fig. 8.6-7 Schematic Diagram of Fastening the Front Part with the Back Part of the Connector

8.6.3 Cutting Feeder Cable

 Caution: Stick temporary labels at both ends of the primary feeder cables after cutting them. Labels can also be stuck in the middle part of the feeder cables but they must be the same; otherwise, wrong connections might be caused.

On the installation site, measure the cabling route of the primary feeder cables

accurately and then cut the cables as needed. The operations are as follows:

1. When the antenna feeder system is to be installed on the top of a building:

1) Measure the cabling route with a tape measure to determine the length of the

primary feeder cables needed by each sector.

2) Add some margin (1m~2m) to the measured lengths when cutting the cables.

Keep t his wrench immovable

3) After cutting a piece of primary feeder cable, stick temporary labels at both ends

of the cable, for example, ANT1, ANT2, ANT3, ANT4, ANT5, ANT6.

4) Carry the feeder cables having been cut to the top of the building. Ensure that

the cables are not squeezed or damaged during the conveyance.

2. When the antenna feeder system is to be installed on a tower:

1) Pull one end of the feeder cable to the tower top with the roller support, pulley

block and rope. Then the installation personnel under the tower cut the cable

based on the length needed (with a certain margin). Stick a temporary label at

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Chapter 8 Installation of Primary Antenna Feeder System

the lower end of the cable. Stick a formal label after the cable is led into the

equipment room.

2) Assemble the connectors before raising the primly feeder cables, thus shortening

the time for working at heights and ensuring the quality of the connectors.

8.6.4 Raising Primary Feeder Cable

When the antenna feeder system is to be installed on a tower, the pulley block will be

used to raise the primary feeder cables, as shown in Fig. 8.6-8. The operations are as

follows:

1. Check the labels at both ends of the primary feeder cable to ensure that it is the

right cable.

2. Wrap the feeder cable connector with a piece of flax cloth or an antistatic plastic

bag filled with foam, and then bundle it tight.

3. Tie a knot with the rope on the feeder cable at the place 0.4m away from the

connector and then another knot about 3.4m away from the connector, for the

purpose of facilitating the cooperation between the installation personnel on and

under the tower to raise the cable and preventing the feeder cable and its

connector from being damaged due to hit with the tower.

4. After the primary feeder cable is pulled to the tower top, fasten it tight.

 Caution: Raise the primary feeder cable with care to avoid damaging the sheath of it. If not, the whole piece of the cable will be wasted. Mind your own safety also when raising the cable.

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Pulley block

The feeder cable

connector is wrapped

Label

Tie a knot with the rope on the feeder cable at the place 0.4m away from the connector and then another knot about 3.4m away from the connector

Use this rope to pull the feeder cable away from the tower to prevent damaging the cable

The rope for

pulling the cable

up the tower

and the connector when raising the cable

Fig. 8.6-8 Schematic Diagram of Pulling the Feeder Cable Up the Tower

8.6.5 Laying and Fastening Primary Feeder Cable

1. Cabling principles

1) The primary feeder cables should be laid in order on the cabling rack after being

led into the equipment room through the feeder cable window.

2) The primary feeder cables should be laid without crossings along the outdoor

cabling rack and the cabling ladder of the tower.

3) Be familiar with the cabling route of the primary feeder cables and draw it on

paper in advance to ensure there are no crossings during the actual cabling.

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Chapter 8 Installation of Primary Antenna Feeder System

4) The minimum bending radius of the primary feeder cable should be no less than

20 times of its semi-diameter. The minimum one-time bending radius is 90mm,

and the minimum repeated bending radius is 200mm.

5) The maximum interval between hangers is 1.65m.

2. Cabling procedures:

1) In principle, a hanger should be installed on the tower or cabling rack every

about 1.5m. For onsite installation, the interval can be lengthened or shortened

depending on the actual situation, but the maximum interval cannot exceed

1.65m. Install the hangers with even distance in the same direction. If two rows

of hangers are installed on one cabling ladder, keep them in parallel and in order.

See Fig. 8.6-9 for the appearance of a hanger.

Fig. 8.6-9 Appearance of a Hanger

2) Arrange the primary feeder cables before leading them into the equipment room.

3) Fasten the primary feeder cables from top downward with hangers. Keep the

cables straight all the way. Do not fasten the feeder cables at both ends

simultaneously.

4) If the antenna feeder system is installed on the top of a building, the network

operator should install the cabling ladder on the wall. In this case, fasten the

primary feeder cables with hangers along the ladder before leading them into the

equipment room.

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8.6.6 Connecting Jumper Cable with Feeder Cable and Sealing Their Joint

 Caution: Pay attention to the sealing of the joint between the feeder cable and the jumper cable, which is critical in the installation of the antenna feeder system. Use waterproof adhesive tape for the sealing.

Generally, the 3m-long 1/2” jumper cable is used to connect the antenna and the

primary feeder cable. Connect the 1/2” jumper cable with the primary feeder cable and

then seal their joint as follows:

1. Connect the antenna jumper cable with the connector of the primary feeder cable

and then screw down the connector.

2. Treat connectors with waterproof measures. The procedures are as follows:

1) Wrap the waterproof adhesive tape around the joint from the sunk area upward

(fill the area with the tape), as shown in Fig. 8.6-10.

Fig. 8.6-10 Schematic Diagram of Wrapping Waterproof Adhesive Tape (1)

2) Stretch the tape with force and wrap it in the same direction as for fastening the

cable connector.

3) Wrap circularly in the reverse direction for the second layer, as shown in Fig.

8.6-11. Note that the next circle covers 1/3 of the previous circle for the purpose

of preventing inleakage of rain. Wrap the joint for three layers totally. Do not cut

the adhesive tape during the wrapping. The length of the cable wrapped with the

tape should be 20mm longer than that of the connector.

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Chapter 8 Installation of Primary Antenna Feeder System

Fig. 8.6-11 Schematic Diagram of Wrapping Waterproof Adhesive Tape (2)

4) After the wrapping, grip the joint with both hands to make the tape stuck tight

with the joint, as shown in Fig. 8.6-12.

Fig. 8.6-12 Schematic Diagram of Wrapping Waterproof Adhesive Tape (3)

5) Wrap two layers of PVC tape around the waterproof adhesive tape. Note that the

next circle covers half of the previous circle.

6) Grip the joint again.

7) Use ties to fasten the wrapped part at both ends to prevent the tape from falling

off due to aging.

8.6.7 Leading Primary Feeder Cable into Equipment Room

1. Precautions

1) See Fig. 8.6-13 and Fig. 8.6-14 for the modes of leading the primary feeder

cables into the equipment room. It must be ensured that no rainwater will be led

in along the feeder cable. If necessary, the water-blocking curve can be made.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

Feeder cable window

OutdoorsIndoors

Cabling rack

Fig. 8.6-13 Leading the Feeder Cable into the Equipment Room - Mode 1

Indoors

Feeder cable

window

Outdoors

One-time bending,

with the min. radius

of more than 90mm

Hanger

Cabling rack

Hanger

One-time bending,

with the min. radius

of more than 90mm

Fig. 8.6-14 Leading the Feeder Cable into the Equipment Room - Mode 2

2) The feeder cables are led into the equipment room through the feeder cable

window. The outdoor and indoor cabling racks are used for leading them.

2. Procedures

1) Loosen the fasteners on the feeder cable window and remove the cover from the

holes.

2) Lead the feeder cables into the equipment room. Two people in and out of the

room respectively should cooperate when leading the cables to prevent

damaging both the equipment and the cable. Screw down the fastening hoop

after the feeder cables are pulled in position.

3) Cut the feeder cables. The following should be done before cutting them:

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Chapter 8 Installation of Primary Antenna Feeder System

Checking labels

Check if the temporary labels are stuck on the cables. Without the labels, you

might misconnect the cables.

Determining the cutting position

Determine the cutting position based on the installation position of the shelf and

the lightning arrester, length of jumper cable on top, and the bending radius of

the feeder cables.

4) Assemble the indoor connectors of the primary feeder cables.

8.6.8 Connecting Indoor Jumper Cable

The indoor jumper cable on top is connected between the primary feeder cable and the

antenna interface at the bottom of a micro-BTS. Customize a jumper cable on site

based on the actual situation. One end of the jumper cable is a male N connector, which

is directly connected to the bottom of the cabinet. The other end is a female DIN

connector, which is connected to the 7/8” primary feeder cable. See Fig. 8.6-1.

8.7 Grounding System of Micro-BTS

Grounding aims to protecting both the human being and the equipment against

lightning shock and electromagnetic interference.

The grounding system of a micro-BTS includes protection grounding on the chassis,

lightning arrester for RF components in the cabinet, for GPS antenna, for T1 cables, for

120V AC power and for feeder cable grounding kit.

1. Grounding principles of primary feeder cables

1) Generally, each primary feeder cable should be grounded at least three times for

lightning protection, that is, on the tower platform, between the tower and the

outdoor cabling rack, and on the wall before the feeder cable is led into the

equipment room. If the primary feeder cable is more than 60 meters long, a

lightning grounding kit should be installed every 20 meters. If the primary

feeder cable is shorter than 5m, one grounding point is enough. If the feeder

cable is shorter than 20m but longer than 5m, it can be grounded at two points.

2) The antenna feeder system, antenna mount and newly-installed cabling rack

should all be welded to the lightning protection net of the building. The feeder

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

cables should also be grounded at three points, that is, on the antenna pole, on

the rooftop, and on the wall before the cables are led into the equipment room.

3) Before leading the primary feeder cable along the outdoor cabling ladder from

the top of the building to the equipment room, check whether the cabling ladder

is grounded. If not, request the network operator to accomplish it as soon as

possible.

2. Procedures to install the grounding kit

1) Prepare such tools as paper knife, straight screwdriver, spanner and sharp nose

2) Choose a suitable position for installing the grounding kit, and cut the sheath off

Grounding terminal

pliers.

the 7/8" feeder cable based on the size of the grounding kit. The structure of a

grounding kit is shown in Fig. 8.7-1.

Grounding wire clip

Feeder cable

Grounding cable

Fig. 8.7-1 Structure of a Grounding Kit

Out-layer copper

core of feeder cable

Sheet copper of

feeder cable

3) Lead the grounding cable of the lightning grounding kit to the grounding net.

Keep the angle between the grounding cable and the primary feeder cable no

more than 15°.

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Chapter 8 Installation of Primary Antenna Feeder System

If the antenna feeder system is installed on a tower, lead the grounding cable

downward along the tower.

If the antenna feeder system is installed on the top of a building, lead the

grounding cable to the lightning protection net.

4) Before installing the grounding kit, wrap the waterproof adhesive tape around

the grounding cable near the grounding copper for sealing, as shown in Fig.

8.7-2.

Fig. 8.7-2 Schematic Diagram of Wrapping Waterproof Adhesive Tape Around the Grounding

Cable

5) Clamp the external conductor with the grounding copper and clip tightly.

6) Seal the joint between the grounding kit and the feeder cable as follows:

First wrap the waterproof adhesive tape and then the PVC tap around the joint.

Wrap the waterproof adhesive tape circularly from bottom upward, and then

from top downward, finally from bottom upward again. Note that the next circle

covers half of the previous circle.

7) Connect the grounding terminal of the grounding kit to the tower body or the

cabling rack on the top of the building (the cabling rack is connected to the

lightning protection net). Remove the paint and oxide at the junction within the

radius of 13mm and then coat the clean area with antioxidant cream. After the

connection, paint the area with antirust paint.

8) Before the primary feeder cable is led into the equipment room, connect the

grounding terminal of the grounding kit to the outdoor grounding busbar.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

8.8 Test of Antenna Feeder System

1. After the antennae are installed and all feeder cables are connected, measure the

standing wave ratio of them.

2. Measure one end of the indoor 1/2” jumper cable, which is to be connected with

the cabinet, with the tester. The standing wave ratio should be lower than 1.5. It

is best to be lower than 1.3.

3. Record the Voltage Standing Wave Ratio (VSWR) value and provide the VSWR

testing diagram.

8.9 Waterproof Processing of Connectors

Follow the steps below to seal the joints between two cables:

1. Fasten the relative joints.

2. Implement waterproof processing to the joints.

1) Wrap the joints with the waterproof adhesive tape from the top of the connectors.

The first layer should be wrapped in the same direction as for fastening the cable

connectors.

2) Stretch the tape with force and wrap it circularly for three layers totally. Note

that the next circle covers half of the previous circle, and the wrap stops at the

position about 10cm away from the joint.

3) Grip the joint with force to make the tape stuck firmly with the joint.

4) Wrap two layers of PVC tape around the waterproof adhesive tape in the same

way as for wrapping the waterproof adhesive tape.

5) Finally wrap a layer of anti-ultraviolet tape.

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9 Installation of GPS Antenna Feeder System

 Summary

Describing the composition of the GPS antenna

feeder system.

Describing the procedures to install the GPS antenna

feeder system.

9.1 Preparations

9.1.1 Installation Personnel

Before installing the GPS antenna feeder system, check the qualification of the

installation personnel for working at heights, installation environment, security

measures, installation tools and system components.

The antenna feeder system is installed by the professional installation personnel under

the monitoring of the installation supervisor.

The installation supervisor should be familiar with the materials, tools and operations

for the installation, who is responsible for assigning suitable work for the installation

personnel and recording the actual engineering data.

The installation personnel should be skillful and healthy. Those who work at heights

should have obtained the corresponding qualification, have no acrophobia, observe the

security regulations, and have purchased the personal accident insurance. In addition,

they are prohibited from drinking alcohol when working.

9.1.2 Installation Environment

Check if the outdoor lightning grounding cable is well grounded and if its cross-section

area is more than 50mm

. Check if the distance between the antenna pole and the

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

lightning rod/lightning grounding point/outdoor cabling rack, the firmness and

wind-resistant ability of the pole meet the design requirements. In addition, check if the

necessary tools and assisting materials are prepared, and if the route for laying the

primary feeder cable are determined through negotiation.

The equipment provider presents the requirements on the installation of the antenna

mount based on the structure and size of the antenna, and the network operator should

install the antenna mount as required.

The network operator is also responsible for the installation of the outdoor cabling rack,

lightning rod, lightning grounding point and outdoor lightning grounding cable.

Moreover, the network operator needs to drill holes on wall or rooftop for installing the

feeder cable window as one of the equipment room conditions.

9.1.3 Security Measures

 Caution: The installation personnel working at heights must wear the safety belt, and those working on ground must wear the safety helmet. They must wear working clothes and shoes causing no slips when climbing up the tower.

1. Safety precautions should be stressed to the installation personnel.

2. The outdoor installation should be conducted in sunny days without strong wind.

3. Obvious signs should be set in the installation site to notify irrelative people to

keep away from the site. The installation personnel working on ground are

obligate to keep irrelative people, esp. children away from the site. The tools

used on the tower and some metal components might slip to cause casualties, so

they must be put in a canvas tool bag when not used, and the bag must be sealed

immediately after you open it for a tool or component.

9.1.4 Installation Tools

1. Measurement tools: A compass, multimeter, inclinometer and tape measure;

2. Communication tools: Two mobile phones;

3. Raising tools: Pulley and rope;

4. Special tools: Cutter for cutting primary feeder cables and tools for assembling

connectors;

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Chapter 9 Installation of GPS Antenna Feeder System

5. General tools: Adjustable wrench, sharp nose pliers, diagonal pliers, electrical

knife, file and hacksaw;

6. Protection tools: Safety belt, safety helmet, safety rope, thick working clothes,

RF prevention clothes, canvas tool bag, gloves, and multi-purpose sockets;

7. Other tools: Herringbone ladder and the wooden wheel axis for uplifting the

primary feeder cable (which can be borrowed locally).

9.2 Composition of GPS Antenna Feeder System

See Fig. 9.2-1 for the composition of the GPS antenna feeder system.

GPS antenna

Fixing clip

Coaxial cable

Sleeve

Fig. 9.2-1 Composition of the GPS Antenna Feeder System

9.3 Installation Procedures

As the CDMA clock and frequency reference, GPS plays a very important role. The

GPS antenna receives navigation and position signals of GPS satellites, demodulates

frequency and clock signals through a GPS signal receiver and provides these signals

to related elements of CDMA BTSs.

1. Requirements on GPS antenna installation

The GPS antenna should be installed in an open and high place, so that it can

trace more satellites, for example, on the top of a building or on a tower. Make

Micro-

BTS

the GPS feeder cable as short as possible to minimize the attenuation.

The GPS antenna should be installed in the lightning protection area of the

tower; otherwise, a lightning rod should be customized and installed for the GPS

antenna.

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ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual

2. Assembly of a GPS coaxial cable connector

1) Strip the a segment of sheath off the GPS coaxial cable as required in Fig. 9.3-1.

6.2

16.7

Fig. 9.3-1 Schematic Diagram of Length of Cable Sheath to be Stripped

2) Assemble the components onto the cable as shown in Fig. 9.3-2. And then solder

the core wire with the pin. Unfold the shielding layer and wrap it around the

bushing.

Soldering

tin

Cable core

wire

Insulating

washer

Bushing Crimping tube Nut

Cable shielding

Cable

Fig. 9.3-2 Schematic Diagram of Soldering the Core Wire with the Pin

3) Assemble the components into the shell, as shown in Fig. 9.3-3.

Insulating

Shell

washer

Fig. 9.3-3 Structure of N-J7A

Bushing

Crimping

tube

Nut

3. Procedures to install the GPS antenna feeder system

1） Assemble an outdoor coaxial cable connector following the same steps

mentioned above.

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Chapter 9 Installation of GPS Antenna Feeder System

2） Insert the connector through the sleeve (a GPS accessory), and then lay the

coaxial cable from the GPS antenna to the GPS lightning arrester.

3） Screw to connect the outdoor coaxial cable connector with the GPS antenna

connector.

4） Screw the sleeve onto the GPS antenna, keeping the GPS antenna unmoved.

5） Secure the tube on the antenna pole with a fixing clip.

6） Cut the coaxial cable based on the installation position of the GPS lightning

arrester. Assemble the indoor cable connector and then connect it with the

lightning arrester. Do not wrongly connect the equipment terminal and antenna

feeder terminal of the GPS lightning arrester.

7） Lay the coaxial cable from the GPS lightning arrester to the GPS port of a

micro-BTS.

9.4 Test of Antenna Feeder System

1. After the antennae are installed and all feeder cables are connected, measure the

standing wave ratio of them.

2. Measure one end of the indoor 1/2” jumper cable, which is to be connected with

the cabinet, with the tester. The standing wave ratio should be lower than 1.5. It

is best to be lower than 1.3.

3. Record the VSWR value and provide the VSWR test diagram.

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