NodeB Satellite Antenna System User Guide(03)

NodeB

Satellite Antenna System User Guide

Issue 03

Date 2008-04-30

Part Number

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but the statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

http://www.huawei.com

mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 Safety Information.....................................................................................................................1-11.1 Safety Precautions...........................................................................................................................................1-11.2 Electricity Safety.............................................................................................................................................1-31.3 Inflammable Environment...............................................................................................................................1-51.4 Battery.............................................................................................................................................................1-51.5 Radiation.........................................................................................................................................................1-71.6 Working at Heights.........................................................................................................................................1-91.7 Mechanical Safety.........................................................................................................................................1-111.8 Others............................................................................................................................................................1-12

2 Satellite Antenna System..........................................................................................................2-12.1 Satellite Antenna.............................................................................................................................................2-22.2 Satellite Surge Protector..................................................................................................................................2-22.3 Feeders and Jumpers.......................................................................................................................................2-4

3 Satellite Antenna System Installation Preparations...........................................................3-1

4 Location Requirements of the Satellite Antenna.................................................................4-1

5 Installing the Satellite Antenna System................................................................................5-1

6 Installing the Satellite Antenna Supports.............................................................................6-16.1 Installing the Satellite Antenna Support on the Rooftop Concrete Base........................................................6-26.2 Installing the Satellite Antenna Support on the Rooftop Enclosure................................................................6-56.3 Installing the Satellite Antenna Support on the Metal Pole............................................................................6-86.4 Installing the Satellite Antenna Support on the Tower Platform..................................................................6-10

7 Installing the Satellite Antenna and the Surge Protector...................................................7-17.1 Installing the G&T Timing GPS Antenna and the Surge Protector................................................................7-2

8 Installing the Feeder Between the Satellite Antenna and the Cabinet...........................8-18.1 Routing Feeders...............................................................................................................................................8-28.2 Leading Feeders into the Equipment Room....................................................................................................8-8

9 Installing the GPS Surge Protector and Jumper on the NodeB Side ..............................9-19.1 Installing the GPS Surge Protector and Jumper on the BTS3812E Side .......................................................9-29.2 Installing the GPS Surge Protector and Jumper on the BTS3812AE Side.....................................................9-3

NodeBSatellite Antenna System User Guide Contents

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9.3 Installing the GPS Surge Protector and Jumper on the BBU3806 Side .........................................................9-59.4 Installing the GPS Surge Protector and Jumper on the BBU3806C/BTS3803C Side .................................9-119.5 Installing the GPS Surge Protector and Jumper on the BBU3900 Side .......................................................9-13

10 Sealing Outdoor Connectors................................................................................................10-1

11 Waterproofing the Feeder Window....................................................................................11-1

12 Checking the Installation of the Satellite Antenna System...........................................12-112.1 Checklist for Satellite Antenna Installation................................................................................................12-212.2 Checklist for Feeder Installation.................................................................................................................12-212.3 Checklist for Jumper Installation................................................................................................................12-312.4 Checklist for Surge Protector Installation...................................................................................................12-312.5 Checklist for Grounding Bar Installation....................................................................................................12-312.6 Checklist for Feeder Window Installation..................................................................................................12-4

Index.................................................................................................................................................i-1

ContentsNodeB


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Figures

Figure 1-1 Wearing an ESD wrist strap...............................................................................................................1-5Figure 1-2 Lifting a weight................................................................................................................................1-10Figure 1-3 Slant angle........................................................................................................................................1-11Figure 1-4 One meter higher than the eave........................................................................................................1-11Figure 2-1 MHT-N5-2L satellite surge protector.................................................................................................2-2Figure 2-2 MHT-N5-2 satellite surge protector...................................................................................................2-3Figure 4-1 Location of the antenna......................................................................................................................4-1Figure 4-2 Positions for installing a GPS antenna on the rooftop........................................................................4-3Figure 4-3 Positions for installing a GPS antenna when a metal tower is on the rooftop....................................4-4Figure 4-4 Positions for installing a GPS antenna in a complicated electromagnetic environment....................4-5Figure 4-5 Positions for installing a GPS antenna on a pole................................................................................4-6Figure 6-1 Satellite antenna support installed on the rooftop...............................................................................6-3Figure 6-2 Installing the expansion bolt assembly...............................................................................................6-4Figure 6-3 Disassembling the expansion bolt assembly......................................................................................6-4Figure 6-4 Installing the antenna support on the concrete ground.......................................................................6-5Figure 6-5 Satellite antenna support installed on the rooftop...............................................................................6-6Figure 6-6 Installing the expansion bolt assembly...............................................................................................6-7Figure 6-7 Disassembling the expansion bolt assembly......................................................................................6-8Figure 6-8 Installing the antenna support on the rooftop enclosure.....................................................................6-8Figure 6-9 Satellite antenna support on the metal pole........................................................................................6-9Figure 6-10 Installing the antenna support on the holding pole.........................................................................6-10Figure 6-11 Satellite antenna support on the tower platform.............................................................................6-11Figure 7-1 Procedure for installing the G&T Timing GPS antenna and the surge protector...............................7-3Figure 8-1 1-for-1 feeder clip...............................................................................................................................8-2Figure 8-2 1-for-3 feeder clip...............................................................................................................................8-2Figure 8-3 Protection treatment for the feeder connector (unit: mm)..................................................................8-4Figure 8-4 Laying out the feeder from the top of the tower to the feeder window..............................................8-6Figure 8-5 Laying out the feeders from the rooftop to the feeder window..........................................................8-7Figure 9-1 GPS surge protector installed on the top of the BTS3812E...............................................................9-2Figure 9-2 Layout of waterproof kit.....................................................................................................................9-3Figure 9-3 Remove the DCSP support and the GPS surge protector support......................................................9-4Figure 9-4 GPS surge protector support...............................................................................................................9-5Figure 9-5 Installing the GPS surge protector on the BBU3806 side .................................................................9-6

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Figure 9-6 Removing the N hexagon nut and spring washer...............................................................................9-7Figure 9-7 Ports on the AFB ............................................................................................................................... 9-7Figure 9-8 Leading the connector of surge protector out of the AFB..................................................................9-8Figure 9-9 Tightening the N hexagon nut on the Surge connector...................................................................... 9-8Figure 9-10 Leading GPS jumper into the APM..................................................................................................9-9Figure 9-11 Leading the GPS clock signal cable through the waterproof filler.................................................9-10Figure 9-12 Routing the GPS clock signal cable...............................................................................................9-10Figure 9-13 Securing the GPS surge protector...................................................................................................9-11Figure 9-14 Installing the GPS surge protector on the BBU3806C/BTS3803C side........................................9-13Figure 10-1 PVC insulating tape and waterproof tape.......................................................................................10-1Figure 10-2 Wrapping the connector in three layers of waterproof tape ..........................................................10-2Figure 10-3 Holding and pressing the wrapped waterproof tape.......................................................................10-2Figure 10-4 Wrapping the connector in three layers of PVC insulating tape....................................................10-3Figure 10-5 Holding and pressing the PVC insulating tape...............................................................................10-3Figure 10-6 Wrapped feeder connector..............................................................................................................10-4Figure 11-1 Waterproofed feeder window.........................................................................................................11-1

FiguresNodeB


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Tables

Table 2-1 Scenarios and installation requirements for the surge protectors for the base station.........................2-3Table 2-2 Mapping between distance and specifications of feeder and jumper...................................................2-4Table 3-1 Tools and instruments used for antenna system installation................................................................3-1

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About This Document

PurposeThis document describes how to install the hardware components of the satellite antenna system,such as the satellite antenna, satellite surge protectors, feeders, and jumpers. In addition, itprovides the checklists for hardware installation.

VersionsThe following table lists the versions of the product described in this document.

Product Name Version

NodeB All NodeB versions

Intended AudienceThis document is intended for:

l NodeB installer

Update HistoryRefer to Changes in NodeB Satellite Antenna System User Guide.

Organization1 Safety Information

2 Satellite Antenna System

The satellite antenna system consists of one satellite antenna, one satellite surge protector, onefeeder, and two jumpers.

3 Satellite Antenna System Installation Preparations

The tools and feeder window required for the installation of the satellite antenna system shouldbe prepared in advance.

4 Location Requirements of the Satellite Antenna

This part describes location requirements of the satellite antenna under different installationenvironments.

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5 Installing the Satellite Antenna System

This part describes the procedures for installing the satellite antenna system.

6 Installing the Satellite Antenna Supports

This part describes how to install the GPS antenna supports on the rooftop concrete base, on therooftop enclosure, on the metal pole, and on the tower platform.

7 Installing the Satellite Antenna and the Surge Protector

This part describes how to install the satellite antenna and its surge protector.

8 Installing the Feeder Between the Satellite Antenna and the Cabinet

This part describes how to install the feeder between the satellite antenna and the base station.The installation procedure consists of routing the feeders, installing the feeder grounding kits,and leading the feeders into the equipment room.

9 Installing the GPS Surge Protector and Jumper on the NodeB Side

This task describes how to install the GPS surge protector and jumper on the NodeB side.

10 Sealing Outdoor Connectors

To prevent outdoor cables from aging and to maintain their stable performance, you need to sealthe outdoor connectors. This topic illustrates how to seal an outdoor feeder connector.

11 Waterproofing the Feeder Window

The feeder window are categorized into encapsulation window and glass window. You shouldwaterproof the feeder window based on its type.

12 Checking the Installation of the Satellite Antenna System

This part describes how to check the installation of the satellite antenna system.

Conventions1. Symbol Conventions

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

Symbol Description

DANGERIndicates a hazard with a high level of risk that, if not avoided,will result in death or serious injury.

WARNINGIndicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save yourtime.

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Symbol Description

NOTE Provides additional information to emphasize or supplementimportant points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. Forexample,log in as user root .

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by verticalbars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are inboldface. For example,click OK.

> Multi-level menus are in boldface and separated by the ">" signs.For example,choose File > Create > Folder .

5. Keyboard Operation

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Key Press the key.For example,press Enter and press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+Ameans the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

Action Description

Click Select and release the primary mouse button without moving thepointer.

Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.

Drag Press and hold the primary mouse button and move the pointerto a certain position.

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1 Safety Information

1.1 Safety PrecautionsThis section describes certain safety precautions and helps to choose the measurement deviceand testing device. Read and follow these safety precautions before installing, operating, andmaintaining Huawei devices.

Following All Safety Precautions

Before any operation, read the instructions and precautions in this document carefully tominimize the possibility of accidents.

The Danger, Caution, and Note items in the package of documents do not cover all the safetyprecautions that must be followed. They only provide the generic safety precautions foroperations.

Symbols

DANGERThis symbol indicates that casualty or serious accident may occur if you ignore the safetyinstruction.

CAUTIONThis symbol indicates that serious or major injury may occur if you ignore the safety instruction.

NOTE

This symbol indicates that the operation may be easier if you pay attention to the safety instruction.

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Complying with the Local Safety Regulations

When operating the device, comply with the local safety regulations. The safety precautionsprovided in the documents are supplementary. You must comply with the local safetyregulations.

General Installation Requirements

The personnel in charge of installation and maintenance must be trained and master the correctoperating methods and safety precautions before beginning work.

The rules for installing and maintaining the device are as follows:

l Only the trained and qualified personnel can install, operate and maintain the device.

l Only the qualified specialists are allowed to remove the safety facilities, and repair thedevice.

l Any replacement of the device or part of the device (including the software) or any changemade to the device must be performed by qualified or authorized personnel of Huawei.

l Any fault or error that might cause safety problems must be reported immediately to thepersonnel in charge.

Grounding Requirements

The following requirements are applicable to the device to be grounded:

l Ground the device before installation and remove the ground cable after uninstallation.

l Do not operate the device in the absence of a ground conductor. Do not damage the groundconductor.

l The unit (or system) must be permanently connected to the protection ground beforeoperation. Check the electrical connection of the device before operation and ensure thatthe device is reliably grounded.

Safety of Personnel

Ensure the following:

l When lightning strikes, do not operate the device and cables.

l When lightning strikes, unplug the AC power connector. Do not use the fixed terminal ortouch the terminal or antenna connector.

NOTE

The previous two requirements are suitable for the wireless fixed terminal.

l To prevent electric shock, do not connect safety extra-low voltage (SELV) circuits totelecommunication network voltage (TNV) circuits.

l To prevent laser radiation from injuring your eyes, never look into the optical fiber outletwith unaided eyes.

l To prevent electric shock and burns, wear the electrostatic discharge (ESD) clothing, glovesand wrist strap, and remove conductors such as jewelry and watch before operation.

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Device Safetyl Before operation, the device must be secured on the floor or other fixed objects, such as

the walls and the mounting racks.l Do not block ventilation openings while the system is running.

l When installing the panel, tighten the screw with the tool.

1.2 Electricity Safety

High Voltage

DANGERl The high voltage power supply provides power for running the system. Direct contact with

the high voltage power supply or contact through damp objects may result in fatal danger.l Non-standard and improper high voltage operations may result in fire and electric shock.

l The personnel who install the AC facility must be qualified to perform operations on highvoltage and AC power supply facilities.

l When installing the AC power supply facility, follow the local safety regulations.

l When operating the AC power supply facility, follow the local safety regulations.

l When operating the high voltage and AC power supply facilities, use the specific toolsinstead of common tools.

l When the operation is performed in a damp environment, ensure that water is kept off thedevice. If the cabinet is damp or wet, shut down the power supply immediately.

ThunderstormThe following requirements are suitable only for the wireless base station or the device with anantenna or GPS antenna.

DANGERIn a thunderstorm, do not perform operations on high voltage and AC power supply facilities oron a steel tower and mast.

High Electrical Leakage

CAUTIONGround the device before powering on the device. Otherwise, the personnel and device are indanger.



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If the "high electrical leakage" flag is stuck to the power terminal of the device, you must groundthe device before powering it on.

Power Cable

CAUTIONDo not install and remove the power cable with a live line. Transient contact between the coreof the power cable and the conductor may generate electric arc or spark, which may cause fireor eye injury.

l Before installing or removing the power cable, turn off the power switch.

l Before connecting the power cable, ensure that the power cable and label comply with therequirements of the actual installation.

Fuse

CAUTIONTo ensure that the system runs safely, when a fuse blows, replace it with a fuse of the same typeand specifications.

Electrostatic Discharge

CAUTIONThe static electricity generated by the human body may damage the electrostatic sensitivecomponents on the circuit board, such as the large-scale integrated circuit (LIC).

In the following situations, the human body generates a static electromagnetic field:

l Movement of body parts

l Clothes friction

l Friction between shoes and the ground

l Holding plastic in hand

The static electromagnetic field will remain within the human body for a long time.

Before contacting the device, plug boards, circuit boards, and application specific integratedcircuits (ASICs), wear a grounded ESD wrist strap. It can prevent the sensitive components frombeing damaged by the static electricity in the human body.

Figure 1-1shows how to wear an ESD wrist strap.




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Figure 1-1 Wearing an ESD wrist strap

1.3 Inflammable Environment

DANGERDo not place the device in the environment that has inflammable and explosive air or fog. Donot perform any operation in this environment.

Any operation of the electrical device in the inflammable environment causes danger.

1.4 Battery

Storage Battery

DANGERBefore handling the storage battery, read the safety precautions for the handling and connectionof the storage battery.

Incorrect operation of storage batteries may cause danger. During operation, ensure thefollowing:

l Prevent any short-circuit.

l Prevent the electrolyte from overflowing and leakage.

Electrolyte overflow may damage the device. It will corrode the metal parts and the circuitboards, and ultimately damage the device and cause short-circuit of the circuit boards.



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General Operations

Before installing and maintaining the storage battery, ensure the following:

l Use special insulation tools.

l Use eye protection devices and operate with care.

l Wear rubber gloves and an apron in case of an electrolyte overflow.

l Always keep the battery upright when moving. Do not place the battery upside down or tiltit.

Short-Circuit

DANGERShort-circuit of the battery may cause injury. Although the voltage of a battery is low, hightransient current generated by short-circuit will release a surge of power.

Keep metal objects away from the battery to prevent short circuit. If they have to be used,disconnect the battery in use before performing any other operation.

Harmful Gas

CAUTIONl Do not use unsealed lead-acid storage batteries, because the gas emitted from it may result

in fire or device corrosion.

l Lay the storage battery horizontally and fix it properly.

The lead-acid storage battery in use will emit flammable gas. Therefore, store it in a place withgood ventilation and take precautions against fire.

High Temperature

CAUTIONHigh temperature may result in distortion, damage, and electrolyte overflow of the battery.

When the temperature of the battery exceeds 60oC, check whether there is acid overflow. If acidoverflow occurs, handle the acid immediately.




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Acid

CAUTIONIf the acid overflows, it should be absorbed and neutralized immediately.

When handling a leaky battery, protect against the possible damage caused by the acid. Use thefollowing materials to absorb and neutralize acid spills:

l Sodium bicarbonate (baking soda): NaHCO3

l Sodium carbonate (soda): Na2CO3

Antacids must be used according to the instructions provided by the battery manufacturer.

Lithium Battery

CAUTIONThere is danger of explosion if the battery is incorrectly replaced.

l Replace the lithium battery with the same or equivalent type recommended by themanufacturer.

l Dispose of the used battery according to the instructions provided by the manufacturer.

l Do not dispose of the lithium battery in fire.

1.5 Radiation

Electromagnetic Field Exposure

CAUTIONHigh power radio-frequency signals are harmful to human body.

Before installing or maintaining an antenna on a steel tower or mast with a large number oftransmitter antennas, the operator should coordinate with all parties to ensure that the transmitterantennas are shut down.

The base transceiver station (BTS) has RF radiation (radiation hazard). Suggestions for theinstallation and operation of BTSs are given in the following section. Operators are also requiredto comply with the related local regulations on erecting BTSs.

l The antenna should be located in an area that is inaccessible to the public where the RFradiation exceeds the stipulated value.



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l If the areas where RF radiation exceeds the stipulated value are accessible to workers,ensure that workers know where these areas are. They can shut down the transmitters beforeentering these areas. Such areas may not exist; but if they exist, the areas must be within arange of less than 10 m around the antennas.

l Each forbidden zone should be indicated by a physical barrier and striking sign to warn thepublic or workers.

Laser

CAUTIONWhen handling optical fibers, do not stand close to, or look into the optical fiber outlet withunaided eyes.

Laser transceivers or transmitters are used in the optical transmission system and associated testtools. Because the laser that is transmitted through the optical fiber produces a small beam oflight, it has a very high power density and is invisible to human eyes. If a beam of light entersthe eye, the retina may be damaged.

Normally, staring into the end of an unterminated optical fiber or broken optical fiber with theunaided eyes from a distance of more than 150 mm [5.91 in.] will not cause eye injury. Eyesmay, however, be damaged if an optical tool such as a microscope, magnifying glass or eyeloupe is used to stare into the bare optical fiber end.

Read the following guidelines to prevent laser radiation:

l Only the trained and authorized personnel can perform the operation.

l Wear a pair of eye-protective glasses when you are handling lasers or optical fibers.

l Ensure that the optical source is switched off before disconnecting optical fiber connectors.

l Never look into the end of an exposed optical fiber or an open connector if you cannotensure that the optical source is switched off.

l To ensure that the optical source is switched off, use an optical power meter.

l Before opening the front door of an optical transmission system, ensure that you are notexposed to laser radiation.

l Never use an optical tool such as a microscope, a magnifying glass, or an eye loupe to lookinto the optical fiber connector or end.

Read the following instructions before handling optical fibers:

l Only the trained personnel can cut and splice optical fibers.

l Before cutting or splicing an optical fiber, ensure that the optical fiber is disconnected fromthe optical source. After disconnecting the optical fiber, use protecting caps to protect allthe optical connectors.




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1.6 Working at Heights

CAUTIONWhen working at heights, ensure that the objects do not fall.

When working at heights, ensure that the following requirements must be met:

l The personnel who work at heights must be trained.

l The operating machines and tools should be carried and handled safely to prevent themfrom falling.

l Safety measures, such as wearing a helmet and a safety belt, should be taken.

l In cold regions, warm clothes should be worn before working at heights.

l Ensure that the lifting appliances are well prepared for working at heights.

Lifting Weights

CAUTIONDo not access the areas under the arm of the crane and the goods in suspension when liftingweights.

l Ensure that the operators have been trained and qualified.

l Check the weight lifting tools and ensure that they are intact.

l Lift the weight only when the weight lifting tools are firmly mounted onto the weight-bearing object or the wall.

l Use a concise instruction to prevent incorrect operation.

l The angle between the two cables should be less than or equal to 90o in the lifting of weights(See Figure 1-2).



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Figure 1-2 Lifting a weight

Safety Guide on Ladder UseChecking the Ladder

l Check the ladder before using it. Check the maximum weight that the ladder can support.

l Never overload the ladder.

Placing the Ladder

l The slant angle is preferred to be 75o. The slant can be measured with the angle square orwith arms, as shown in Figure 1-3. When using a ladder, place the wider end of the ladderon the ground and take protective measures on the base of the ladder against slippage. Placethe ladder on a stable ground.

When climbing the ladder, ensure the following:

l The gravity of the body does not shift from the edge of the ladder.

l Keep balance on the ladder before performing any operation.

l Do not climb higher than the fourth highest step of the ladder.

If you tend to climb to the roof, the length of the ladder should be at least one meter higher thanthe eave, as shown in Figure 1-4.




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Figure 1-3 Slant angle

Figure 1-4 One meter higher than the eave

1.7 Mechanical Safety

Drilling

CAUTIONDo not drill on the cabinet without permission. Inappropriate drilling on the cabinet may damagethe electromagnetic shielding and internal cables. Metal shavings from the drilling may resultin a short-circuit of the circuit board if they get into the cabinet.

l Before drilling a hole on the cabinet, remove the cables from the cabinet.



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l During the drilling, wear blinkers to protect your eyes.

l During the drilling, wear the protective gloves.

l Prevent the metal shavings from getting into the cabinet. After drilling, clean the metalshavings in time.

Handling Sharp Objects

CAUTIONWhen carrying the device by hand, wear the protective gloves to prevent injury by sharp objects.

Handling Fansl When replacing a component, place the component, screw, and tool at a safe place to prevent

them from falling into the running fan.l When replacing the ambient equipment around the fan, do not place the finger or board

into the running fan until the fan is switched off and stops running.

Moving Heavy ObjectsWear the protective gloves when moving heavy objects.

CAUTIONl Be careful when moving heavy objects.

l When moving the chassis outwards, be aware about the unfixed or heavy objects on thechassis to prevent injury.

l Two persons should be available to move a chassis; one person must not move a heavychassis. When moving a chassis, keep your back straight and move stably to prevent asprain.

l When moving or lifting a chassis, hold the handle or bottom of the chassis. Do not hold thehandle of the installed modules in the chassis, such as the power module, fan module, orboard.

1.8 Others

Inserting and Removing a Board

CAUTIONWhen inserting a board, wear the ESD wrist strap or gloves. Insert the board gently to preventany bent pins on the backplane.




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l Insert the board along the guide rail.

l Avoid contact of one board with another to prevent short-circuit or damage.

l Do not remove the active board before powering off.

l When holding a board in hand, do not touch the board circuit, components, connectors, orconnection slots.

Bundling Signal Cables

CAUTIONBundle the signal cables separately from the strong current cables or high voltage cables.

Cabling RequirementsAt a very low temperature, movement of the cable may damage the plastic skin of the cable. Toensure the construction safety, comply with the following requirements:

l When installing cables, ensure that the environment temperature is above 0oC.

l If cables are stored in the place below 0oC, move the cables into a place at a roomtemperature and store the cables for more than 24 hours before installation.

l Move the cables with care, especially at a low temperature. Do not drop the cables directlyfrom the vehicle.



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2 Satellite Antenna System

About This Chapter

The satellite antenna system consists of one satellite antenna, one satellite surge protector, onefeeder, and two jumpers.

NOTE

Though satellite antennas have different appearances, they share the same installation method. This taskillustrates how to install the GPS antenna.

2.1 Satellite AntennaThere are multiple types of satellite antennas. The commonly-used antennas are the AT1675-0GPS/GLONASS antenna, G&Timing satellite antenna, and AT575 GPS antenna.

2.2 Satellite Surge ProtectorThe satellite surge protectors are categorized into the satellite surge protector for the antennaand the satellite surge protector for the base station.

2.3 Feeders and JumpersThe feeders and jumpers are used to connect an antenna to a base station. The feeders have threetypes: 1/2", 7/8", and 5/4".

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2.1 Satellite AntennaThere are multiple types of satellite antennas. The commonly-used antennas are the AT1675-0GPS/GLONASS antenna, G&Timing satellite antenna, and AT575 GPS antenna.

For the introduction to the appearance of the satellite antenna, see 7 Installing the SatelliteAntenna and the Surge Protector.

2.2 Satellite Surge ProtectorThe satellite surge protectors are categorized into the satellite surge protector for the antennaand the satellite surge protector for the base station.

Satellite Surge Protector for the AntennaThe MHT-N5-2L/MTH1400-N5-1 satellite surge protector is delivered a base station to providesurge protection for the satellite antenna. Figure 2-1 shows the MHT-N5-2L satellite surgeprotector.

Figure 2-1 MHT-N5-2L satellite surge protector

(1) GND connector (2) Protect connector (3) Surge connector

NOTEThe usage of the MTH1400-N5-1 satellite surge protector is the same as that of the MHT-N5-2L satellite surgeprotector.

Satellite Surge Protector for the Base StationThe satellite surge protector for the base station provides surge protection for the satellitereceiver.

The two types of satellite surge protectors delivered with the base station are as follows:

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l MHT-N5-2 satellite surge protector: It is applicable to macro base stations and base stationcontrollers. Figure 2-2 shows the MHT-N5-2 satellite surge protector.

l MHT-N5-2L satellite surge protector: It is applicable to mini base stations. Figure 2-1shows the MHT-N5-2L satellite surge protector.

Figure 2-2 MHT-N5-2 satellite surge protector

(1) GND connector (2) Protect connector (3) Surge connector

Table 2-1 describes scenarios and installation requirements for the surge protectors for the basestation.

Table 2-1 Scenarios and installation requirements for the surge protectors for the base station

Type Scenario Installation Requirement

MHT-N5-2 Indoor macro basestation

The surge protector connects to thesatellite port at the top of the cabinet.

Outdoor macro basestation

The surge protector connects to thesatellite holder at the bottom of thecabinet.

MHT-N5-2L When a BBU is installedin an outdoor or indoormacro NodeB cabinet orin an APM100 outdoorpower supply system(APM)

The surge protector should beinstalled inside the cabinet.The cabinet should have enoughspace inside.

When a BBU is installedinside an auxiliaryfacility box (AFB)

The surge protector connects to theGPS port at the bottom of the AFB,and connects to the GPS port on theBBU3806 through the GPS clocksignal cable.

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Type Scenario Installation Requirement

BBU3806C orBTS3803C

The surge protector directlyconnects to the GPS port on theBBU3806C or on the BTS3803C.

2.3 Feeders and JumpersThe feeders and jumpers are used to connect an antenna to a base station. The feeders have threetypes: 1/2", 7/8", and 5/4".

Choose a proper feeder and jumper according to the distance between the antenna and the basestation, as described in Table 2-2.

Table 2-2 Mapping between distance and specifications of feeder and jumper

When the distance between an antennaand a base station is...

Choose...

Shorter than 100 m [328 ft] 1/2" jumper.

Equal to or longer than 100 m [328 ft] andshorter than 300 m [984 ft]

7/8" feeder.

Equal to or longer than 300 m [984 ft] 5/4" feeder.

NOTE

When the 7/8" feeder or the 5/4" feeder is used, the 1/2" jumpers should be used at the both ends of thefeeder.

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3 Satellite Antenna System InstallationPreparations

The tools and feeder window required for the installation of the satellite antenna system shouldbe prepared in advance.

Preparing Tools and InstrumentsTable 3-1 shows the special tools and instruments that are used for the installation. The commontools (such as a percussion drill or a screwdriver) that are used for installing base stationequipment can be also used for antenna system installation.

Table 3-1 Tools and instruments used for antenna system installation

Measurement Tool Angle display and compass

CeilingInstallation Tool

Pulley block, two 150 m [492 ft] cords (one is a thick cord and theother is a thin cord), and feeder noose

Feeder-MakingTool

Scissor, scriber (matching with the feeder model), blowtorch (usedin a cold environment), and antirust aluminium paint

Safety Tool Safety belt, safety helmet, safety rope, thick work clothes, radiationprotective clothing, and ESD wrist strap

Tool Provided bythe Local Customer A-shaped ladder, wooden wheel, and axle used for raising feeders

Other Tool Canvas bag, glove, interphone, multi-function socket, spanner,screwdriver, pliers, and skinning knife

MeasurementInstrument

Test handset (optional), wireless analyzer (such as CELLMASTERand power meter), antenna standing wave tester (such asSITEMASTER), and multimeter

Feeder WindowFor details, refer to Feeder Window.

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4 Location Requirements of the SatelliteAntenna

This part describes location requirements of the satellite antenna under different installationenvironments.

General Requirementsl The satellite antenna should be installed in the open air, without obstacles within the angle

of 80° from the top of the antenna.l The antenna should be installed away from high buildings. If the antenna is installed on the

rooftop, it should be away from ancillary buildings on the roof.l The platform for installing the satellite antenna should have a large available area, and the

visual angle should be greater than 90°, as shown in Figure 4-1.

Figure 4-1 Location of the antenna

(1) Surrounding obstacles (such as buildings) (2) GPS antenna

l When there are obstacles such as high-rise buildings or mountains, stick to the followingprinciples:– At least 50% of the total sky area should be visible above the satellite antenna.– If the antenna is installed in the northern hemisphere, the antenna should face south. If

the antenna is installed in the southern hemisphere, the antenna should face north.l The antenna should be installed away from the main lobe of mobile communication

antenna, microwave antennas, high-voltage cables, and strong radiation of a TV

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transmission station. Install the antenna away from high-power transmitters, intra-frequency interference, and strong electromagnetic interference.

l The lightning protection system, such as a lightning rod, should be prepared for the antenna.Keep the antenna 2 m [6.56 ft] or more away from the lightning rod.

l If the antenna is installed on a tower, the antenna should be placed within the coverage areaof the lightning rod. The coverage area refers to the area that falls within the angle of 45°from the top of the lightning rod. In areas prone to thunderstorms (more than 20thunderstorm days every year), the coverage area is reduced to an area that falls within theangle of 30° from the top of the lightning rod.

CAUTIONKeep the antenna away from the following:l High-voltage power cable

l High-power transmitter

l Coverage area of microwave signals from a microwave antenna

l Strong radiation of a TV transmission station

l Intra-frequency interference or strong electromagnetic interference

l Close-range radiation of the main lobe of the antenna for mobile communications

Location Requirements of the GPS Antenna Installed on the RooftopFigure 4-2 shows the installation positions of a GPS antenna on the rooftop to receive satellitesignals in a more effective way. In Figure 4-2, positions 1, 2, 3, 4 are preferred. It is better notto install a GPS antenna in positions 5 and 6.

You should install the antenna within the coverage area of the lightning rod according to thelightning protection, as shown in Figure 4-2. Stick to the following principles when you installthe GPS antenna on the rooftop:

l Install the antenna at the center of the rooftop rather than on the enclosure around therooftop.

l Do not install the antenna at the corners of the rooftop, as the corners of the rooftop areprone to be stricken by the lightning.

l If there is a metal tower on the top of the building, do not install the antenna on the metaltower.

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Figure 4-2 Positions for installing a GPS antenna on the rooftop

Figure 4-3 shows the positions for installing a GPS antenna when there is a metal tower on therooftop. In Figure 4-3, positions 1 and 2 are preferred. It is better not to install a GPS antennain positions 3 or 4.



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Figure 4-3 Positions for installing a GPS antenna when a metal tower is on the rooftop

Location Requirements of the GPS Antenna Installed in a ComplicatedElectromagnetic Environment

Stick to the following principles when you install a GPS antenna in a complicatedelectromagnetic environment:

l Install the GPS antenna above the microwave antenna (if any) to avoid the main loberadiation from vertical or tilt transmitting.

l If the GPS antenna cannot be installed in a high position, keep the GPS antenna away fromthe microwave antenna. The spacing between the two antennas must be at least 10 timeslarger than the wavelength of the transmit signal.




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l Install the GPS antenna away from the transmit direction of the round satellitecommunication antenna (if any).

l If there is a receive antenna nearby, keep the GPS antenna away from the receive antennaat least one wavelength. For example, if there are two GPS antennas to be installed nearby,the spacing between the two GPS antennas must be 0.5 m [1.64 ft] or more.

l Do not install the GPS antenna under the main lobe of a microwave antenna, under high-voltage cables, or near a TV transmission station.

Figure 4-4 shows the positions for installing a GPS antenna when it is installed in a complicatedelectromagnetic environment. Positions 1, 2, 3, and 4 are preferred. It is better not to install aGPS antenna in positions 5, 6, or 7.

Figure 4-4 Positions for installing a GPS antenna in a complicated electromagnetic environment

Location Requirements of the GPS Antenna Installed in the Rural Area

The mini base station is usually installed on a pole when the system is located in a rural area. Inthis case, the GPS antenna can receive good satellite signals, especially when it is installed onthe top of a hill.

The GPS antenna, however, must be protected against the lightning. Installing the GPS antennain high position can easily damage the GPS antenna and GPS receiver. When the GPS feeder isrouted along a metal pole, the feeder is conductive to the lightning surge which is releasedthrough the pole. This may damage the GPS antenna and GPS receiver.



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Figure 4-5 shows the positions for installing a GPS antenna when the base station is installedon a pole. In Figure 4-5, positions 1 and 2 are preferred. It is better not to install the antenna inpositions 3 or 4.

CAUTIONIn Figure 4-5, the spacing between the GPS antenna and the base station must be less than 2 m[6.56 ft] vertically when the GPS antenna is installed in position 2.

Figure 4-5 Positions for installing a GPS antenna on a pole

(1) GPS antenna (2) Outdoor base station




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5 Installing the Satellite Antenna System

This part describes the procedures for installing the satellite antenna system.

ContextNOTE

l You can install the GPS antenna system and the RF antenna system at the same time. According tothe actual configuration and field situation, you need to adjust the installation procedures.

l The feeder should be waterproofed after it passes the test.

Procedure

Step 1 Install the satellite antenna supports. For details, refer to 6 Installing the Satellite AntennaSupports.

Step 2 Install the satellite antenna and the surge protector. For details, refer to 7 Installing the SatelliteAntenna and the Surge Protector.

Step 3 Install the feeder between the satellite antenna and the cabinet. For details, refer to 8 Installingthe Feeder Between the Satellite Antenna and the Cabinet.

Step 4 Install the GPS surge protector and jumper for the base station

For different base stations, the procedures for installing their connectors and jumpers aredifferent. For details, refer to the relevant installation guide.

Step 5 Waterproof the feeder window. For details, refer to 11 Waterproofing the Feeder Window.

Step 6 Check the installation of the satellite antenna system. For details, refer to 12 Checking theInstallation of the Satellite Antenna System.

----End

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6 Installing the Satellite Antenna Supports

About This Chapter

This part describes how to install the GPS antenna supports on the rooftop concrete base, on therooftop enclosure, on the metal pole, and on the tower platform.

6.1 Installing the Satellite Antenna Support on the Rooftop Concrete BaseThis part describes how to install the satellite antenna support on the concrete base on the rooftop.

6.2 Installing the Satellite Antenna Support on the Rooftop EnclosureThis part describes how to install the satellite antenna support on the rooftop enclosure.

6.3 Installing the Satellite Antenna Support on the Metal PoleThis topic describes how to install the satellite antenna support on the metal pole.

6.4 Installing the Satellite Antenna Support on the Tower PlatformThis part describes how to install the satellite antenna support on the tower platform.

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6.1 Installing the Satellite Antenna Support on the RooftopConcrete Base

This part describes how to install the satellite antenna support on the concrete base on the rooftop.

Prerequisite

CAUTIONPrepare the concrete base before installing the devices.

The items required for installing the satellite antenna support are as follows:

l Antenna support

l M10x80 expansion bolt assemblies

l Percussion drill with a Ф12 drill bit, vacuum cleaner, protective glasses, marking pen,rubber hammer, wrench, and plumb

ContextStick to the following principles when you prepare a concrete base:

l The dimensions of the concrete base should be 500 mm [19.69 in.] x 500 mm [19.69 in.]x 200 mm [7.87 in.](length x width x depth).

l The concrete base is made of concrete and reinforcing steel bars. The base must be strongenough for mounting expansion bolt assemblies.

l The upper surface of the concrete base should be flat to ensure that the antenna lever standsupright.

l The rooftop should be waterproof. Ensure that you have the permission to roughen thesurface where you are going to install the concrete base to reduce the risk of sliding.

CAUTIONKeep in mind the climatic conditions. Excessive cold weather can increase the difficulty inconstruction and eventually delay the project. In a cold region, prepare the concrete base on sitein advance.

Figure 6-1 shows the satellite antenna support installed on the rooftop.

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Figure 6-1 Satellite antenna support installed on the rooftop

Procedure

Step 1 Place the base of the antenna support on the concrete ground and mark the positions of theinstallation holes.

Step 2 Use a Ф12 drill bit to drill holes at the marked positions.

CAUTIONEnsure that the depth of the holes ranges between 72 mm [2.83 in.] and 80 mm [3.15 in.].

Step 3 Use a cleaner to clean the dust inside and around the holes.

Step 4 Measure the spacing between the holes and ensure that the holes on the concrete base match theholes in the metal base. If the dimension of a hole has an error, relocate and drill another holebefore installing the expansion bolt assembly.

Step 5 Insert the expansion bolt assemblies into the holes. Then use the rubber hammer to fix eachassembly until the expansion tube is completely buried into the hole, as shown in Figure 6-2.



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Figure 6-2 Installing the expansion bolt assembly

(1) M10 nut (2) Spring washer 10 (3) Flat washer 10

(4) Expansion tube (5) Guiding slot (6) Conical bolt

CAUTIONEnsure that the guiding ribs on the nut are inserted into the guiding slots on the expansion tubebefore you install the bolt.

Step 6 Remove the M10 bolt, spring washer 10, and flat washer 10, as shown in Figure 6-3.

Figure 6-3 Disassembling the expansion bolt assembly

Step 7 Fix the base by aligning the four holes in the metal base with the four bolts installed on theconcrete base, and fix the metal base by installing the flat washer, spring washer, and nut ontoeach bolt. Ensure that the metal base is on the same level with the ground and that the maximumangle between the antenna support and the plumb is 5°.




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Figure 6-4 shows a surge protector after the installation.

Figure 6-4 Installing the antenna support on the concrete ground

----End

6.2 Installing the Satellite Antenna Support on the RooftopEnclosure

This part describes how to install the satellite antenna support on the rooftop enclosure.

PrerequisiteThe items required for installing the satellite antenna support are as follows:

l Antenna support

l M10x80 expansion bolt assemblies, fixing hoops, and plastic washers

l Percussion drill with a Ф12 drill bit, vacuum cleaner, protective glasses, marking pen,rubber hammer, wrench, and plumb

ContextStick to the following principles when you install the antenna support on the rooftop enclosure:

l The location and environment of the enclosure must be according to the specifications in4 Location Requirements of the Satellite Antenna.

l The antenna must be installed at an inconspicuous place to maintain the appearance of thebuilding.



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l The enclosure must be strong enough and placed high (at least 1 m [3.28 ft]), so that it canbe drilled for installing expansion bolt assemblies.

Figure 6-5 Satellite antenna support installed on the rooftop

Procedure

Step 1 Remove the bending part at the side of the antenna support.

Step 2 Keep the antenna support closely onto the wall, with the upper part vertical to the wall.

Step 3 Mark the positions of the installation holes.

Step 4 Use a Ф12 drill bit to drill holes at the marked positions.

CAUTIONEnsure that the depth of the holes ranges between 72 mm [2.83 in.] and 80 mm [3.15 in.].

Step 5 Use a cleaner to clean the dust inside and around the holes.




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Step 6 Measure the spacing between the holes, and ensure that the holes in the rooftop enclosure matchthe holes in the fixing hoops. If the dimension of a hole has errors, relocate and drill anotherhole before installing the expansion bolt assembly.

Step 7 Insert the expansion bolt assemblies into the holes. Then use the rubber hammer to fix eachassembly until the expansion tube is completely buried into the hole, as shown in Figure 6-6.

Figure 6-6 Installing the expansion bolt assembly

(1) M10 nut (2) Spring washer 10 (3) Flat washer 10

(4) Expansion tube (5) Guiding slot (6) Conical bolt

CAUTIONEnsure that the guiding ribs on the nut are inserted into the guiding slots on the expansion tubebefore you install the bolt.

Step 8 Remove the M10 bolt, spring washer 10, and flat washer 10, as shown in Figure 6-7.



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Figure 6-7 Disassembling the expansion bolt assembly

Step 9 Erect the antenna support against the rooftop enclosure. Ensure that the end of the antennasupport on which the antenna is fixed stands upwards.

Figure 6-8 Installing the antenna support on the rooftop enclosure

Step 10 Pull and rotate the support, and ensure that it is securely installed.

Step 11 Ensure that the antenna support stands upright and that the maximum angle between the antennasupport and the plumb is 5°.

----End

6.3 Installing the Satellite Antenna Support on the MetalPole

This topic describes how to install the satellite antenna support on the metal pole.




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PrerequisiteNOTE

The accessories required for installing the satellite antenna support on the metal pole are not included atdelivery. You need to prepare the installation accessories on site if necessary.

The items required for installing the satellite antenna support are as follows:

l Antenna support

l M10 nuts, flat washers, spring washers, a fixing hoop, and U-shaped clamps

l Cross screwdriver and wrench

NOTE

When the antenna support is installed on a metal pole, ensure that the diameter of the pole is between 80mm [3.15 in.] and 104 mm [4.09 in.].

ContextFigure 6-9 shows the structure of the satellite antenna support.

Figure 6-9 Satellite antenna support on the metal pole



6-9

Procedure

Step 1 Remove the bending part at the side of the antenna support.

Step 2 Use U-shaped screws to fix the antenna support on the holding pole.

Figure 6-10 shows a surge protector after the installation.

Figure 6-10 Installing the antenna support on the holding pole

----End

6.4 Installing the Satellite Antenna Support on the TowerPlatform

This part describes how to install the satellite antenna support on the tower platform.

ContextFigure 6-11 shows the antenna support installed on the tower platform.




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Figure 6-11 Satellite antenna support on the tower platform

Procedure

Step 1 Place the antenna support on the proper position of the tower.

Step 2 Use fixing parts such as steel wires, screws, pads, spring washers, and nuts to tighten the antennasupport on the tower.

NOTE

The ways of installing the antenna support can be site-specific.

----End



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7 Installing the Satellite Antenna and theSurge Protector

About This Chapter

This part describes how to install the satellite antenna and its surge protector.

7.1 Installing the G&T Timing GPS Antenna and the Surge ProtectorThis task describes how to install the G&T Timing GPS antenna and the surge protector for theantenna.

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7.1 Installing the G&T Timing GPS Antenna and the SurgeProtector

This task describes how to install the G&T Timing GPS antenna and the surge protector for theantenna.

Context

CAUTIONl The antenna connectors and the GPS surge protector connectors should be waterproofed

and encapsulated.l The antenna support, especially the areas around the bolts and holes, should be coated with

antirust paint after the installation.

Procedure

Step 1 Remove the bolt from the bottom of the antenna.

Step 2 Insert the connector of the antenna into the hole of pallet through the rubber washer.

Step 3 Tighten the Protector connector of the surge protector on the connector of the antenna throughthe bolt and flat washer.

Step 4 Use the bolts to tighten the GPS antenna.

Step 5 Waterproof the joint of the surge protector and antenna.

Step 6 Connect the feeder (or jumper) to the Surge connector of the surge protector.

Step 7 Encapsulate the joint between the surge protector and the jumper. For details, refer to 10 SealingOutdoor Connectors.

----End

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Result

Figure 7-1 Procedure for installing the G&T Timing GPS antenna and the surge protector

NodeBSatellite Antenna System User Guide 7 Installing the Satellite Antenna and the Surge Protector


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8 Installing the Feeder Between the SatelliteAntenna and the Cabinet

About This Chapter

This part describes how to install the feeder between the satellite antenna and the base station.The installation procedure consists of routing the feeders, installing the feeder grounding kits,and leading the feeders into the equipment room.

8.1 Routing FeedersThis part describes how to route feeders.

8.2 Leading Feeders into the Equipment RoomThis part takes the 12-hole feeder window as an example to describe how to lead feeders intothe equipment room. This part is not applicable to the 27-hole feeder window. It is for referenceonly.

NodeBSatellite Antenna System User Guide

8 Installing the Feeder Between the Satellite Antenna and theCabinet


8-1

8.1 Routing FeedersThis part describes how to route feeders.

Contextl The minimum bending radius of the feeder should be 20 times larger than the feeder

diameter.

l The feeders routed along the cable rack or cable ladder should not be crossed.

l The feeder clips should be used to fasten the feeders. There are three types of feeder clips:1-for-1 feeder clip, 1-for-2 feeder clip, and 1-for-3 feeder clip. Figure 8-1 shows a 1-for-1feeder clip, and Figure 8-2 shows a 1-for-3 feeder clip.

Figure 8-1 1-for-1 feeder clip

Figure 8-2 1-for-3 feeder clip

l If the feeders from the building top are led into the equipment room and the length of thefeeders on the wall is greater than 1 m, route the feeders along the cable ladder.

NOTE

The feeder routing should be properly planned. The feeder routing should not occupy too much space oraffect the ambient environment.




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Procedure

Step 1 Cut the feeders and attach the temporary labels.

NOTE

You can either cut feeders before hoisting them to the installation position or reserve enough length andcut them after hoisting them to the right position.

1. Determine the length of the feeder required for each sector according to the engineeringdesigns.

2. Leave an extra length of 1 m [3.28 ft] to 2 m [6.56 ft] for later cutting.

CAUTIONWhen cutting a feeder, do not bend it. Ensure that it does not get rolled by vehicles orstepped on by pedestrians.

3. Attach temporary labels on the both ends and the middle of the feeders after cutting.

NOTE

The content on temporary labels can be the same as that on the engineering labels.

Step 2 Hoist and fasten the feeders.

CAUTIONHoist the feeders carefully to avoid scratching or damaging the feeder sheath.

1. Wrap the prepared feeder connectors with a piece of gunny cloth or an antistatic bag. Usea rope or cable tie to bind the cloth.

2. Knot the lifting rope round the feeder at the point 0.4 m [1.31 ft] from the end and tie anotherknot at the point 4.4 m [14.43 ft] from the feeder end to prepare for the hoisting, as shownin Figure 8-3.




8-3

Figure 8-3 Protection treatment for the feeder connector (unit: mm)

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

3. Ask the person under the tower to pull the rope when you hoist the antenna.

CAUTIONAvoid bumping the feeders against the building or tower.

4. Fasten the upper end of the feeder in a proper position.

Step 3 Route the feeders.1. Arrange the feeders and make out the lead-in plan based on the requirements in the

engineering design.2. Use feeder clips to fasten the feeders on the tower or cable rack while arranging the feeders

in order. At the same time, perform the operations in Installing Feeder Grounding Kits.




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CAUTIONl Lay out the feeders from top to bottom and fasten them neatly by using feeder clips.

l Determine the mounting points of the feeder clips according to the actual conditions.Mount the feeder clips at an interval of less than 2 m [6.56 ft]. Ensure that the feederclips are evenly mounted and arranged in one direction.

l The feeder clips are vertical to the feeders. Feeders in the same clip are parallel to eachother.

l When fastening the feeders, do not fasten them until they are all laid neatly.

NOTE

Attach the labels at a distance of:

l 20 cm [7.87 in.] from each feeder connector

l 20 cm [7.87 in.] to 30 cm [11.81 in.] under the tower platform

l 20 cm [7.87 in.] outdoors from the feeder window

l The point where the feeder is bent

When binding labels to the feeders, ensure that all labels are neatly laid out and face the samedirection. Ensure that the cable ties also face the same direction, and cut the ties with an extra lengthof 5 mm [0.20 in.] to 10 mm [0.39 in.].

3. Remove the temporary labels, and then use black cables ties to bind the feeder labels.

----End

ResultFigure 8-4 shows how to lay out the feeders from the top of the tower to the feeder window.




8-5

Figure 8-4 Laying out the feeder from the top of the tower to the feeder window

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

Figure 8-5 shows how to lay out the feeders from the rooftop to the feeder window.




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Figure 8-5 Laying out the feeders from the rooftop to the feeder window

(1) Feeder (2) Rooftop (3) Feeder clip (4) Outdoor cable rack

(5) Outdoor grounding bar (6) To outdoor lightning protectionground

(7) Feeder window




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8.2 Leading Feeders into the Equipment RoomThis part takes the 12-hole feeder window as an example to describe how to lead feeders intothe equipment room. This part is not applicable to the 27-hole feeder window. It is for referenceonly.

Procedure

Step 1 Lead each feeder into the equipment room through the feeder window.

Step 2 Make the waterproof curves of the feeders outside the feeder window.

Step 3 Mount the sealing gasket and sleeve for the feeder window. Note that the holes for adding gluein the sealing sleeve should face upwards.

Step 4 Cut the feeders to proper length as required by the design.

Step 5 Prepare the indoor feeder connectors.

Step 6 Attach the label at the point 200 mm [7.87 in.] away from the connector.

CAUTIONWhen leading the feeders into the equipment room, you should get guidance from an experiencedperson to avoid any damage to the indoor equipment.When the feeder window and the indoor cabling racks are not at the same height, bend the feedersin a natural manner. The minimum bending radius of the feeder is at least 20 times the feederdiameter.

----End




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9 Installing the GPS Surge Protector andJumper on the NodeB Side

About This Chapter

This task describes how to install the GPS surge protector and jumper on the NodeB side.

9.1 Installing the GPS Surge Protector and Jumper on the BTS3812E SideThis part describes how to install the surge protector and jumper on the BTS3812E side.

9.2 Installing the GPS Surge Protector and Jumper on the BTS3812AE SideThis part describes how to install the surge protector and jumper on the BTS3812AE side.

9.3 Installing the GPS Surge Protector and Jumper on the BBU3806 SideThis part describes how to install the surge protector and jumper on the BBU3806 side.

9.4 Installing the GPS Surge Protector and Jumper on the BBU3806C/BTS3803C SideThis part describes how to install the surge protector and jumper on the BBU3806C/BTS3803Cside.


9 Installing the GPS Surge Protector and Jumper on theNodeB Side


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9.1 Installing the GPS Surge Protector and Jumper on theBTS3812E Side

This part describes how to install the surge protector and jumper on the BTS3812E side.

Context

The surge protector connects to the GPS port on the top of the BTS3812E and does not requireadditional PGND connection.

The N female connector of the GPS clock cable is installed on the GPS port inside the cabinettop before delivery.

Procedure

Step 1 Fix the Protect connector of the surge protector to the GPS port on the top of the BTS3812E andtorque the Protect connector to 1 N・m, as shown in Figure 9-1.

Figure 9-1 GPS surge protector installed on the top of the BTS3812E

(1) BTS3812E (2) GPS surge protector




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Step 2 Fix the Surge connector to the jumper from the GPS antenna. Torque the Surge connector to 1N・m.

Step 3 Fix the SMA male connector of the GPS clock signal cable to the GPS port on the NMPT.

----End

9.2 Installing the GPS Surge Protector and Jumper on theBTS3812AE Side

This part describes how to install the surge protector and jumper on the BTS3812AE side.

Context

The surge protector is installed on the GPS surge protector support in the cabinet, so you do notneed to connect an extra PGND cable to the surge protector.

Procedure

Step 1 Determine the position where GPS jumpers are led into the cabinet by referring to Figure 9-2.

Figure 9-2 Layout of waterproof kit

(1) Feeder outlet(2) GPS inlet/outlet(3) IBBS door control, inlet/outlet of battery temperature sensor cable, input/output Boolean cable, BITS signalcable, inlet/outlet reserved for inter-cabinet monitoring signal cable(4) Inlets/outlets of external power cable (L1, L2, L3, N Wire), PGND cable, and IBBS equipotential cable




9-3

(5) Inlets/outlets of E1, microwave IF and HDSL transmission cable(6) PGND cable of the IBBS and inlet/outlet of the –48 V cable

Step 2 Connect GPS jumpers.

Step 3 Remove the filler from the sleeve, and then lead the GPS jumper through the sleeve at the bottomof the cabinet.

Step 4 Remove the screws from the DCSP support and the GPS surge protector support, and then takeoff the DCSP support and the GPS surge protector support by referring to Figure 9-3.

Figure 9-3 Remove the DCSP support and the GPS surge protector support

(1) Screw(2) DCSP support(3) GPS surge protector support

Step 5 Unscrew the hex bolt of the GND terminal of the surge protector.

Step 6 Fix the N-type female connector of the GPS jumper to the Surge connector on the GPS surgeprotector, and tighten the N-type female connector to 1 N·m.

Step 7 Fix the N-type female connector of the GPS clock signal cable labeled GPS_0 to the Protectconnector on the GPS surge protector that corresponds to the NMPT located in slot 10, and thentighten the N-type female connector to 1 N·m.

Step 8 Fix the N-type female connector of the GPS clock signal cable labeled GPS_1 to the Protectconnector on the GPS surge protector that corresponds to the NMPT located in slot 11, and thentighten the N-type female connector to 1 N·m.

Step 9 Fix the SMA male connector of the GPS clock signal cable labeled GPS_0 to the GPS interfacethat corresponds to the NMPT located in slot 10.

Step 10 Fix the SMA male connector of the GPS clock signal cable labeled GPS_1 to the GPS interfacethat corresponds to the NMPT located in slot 11.

Step 11 Tighten the hex bolt of the GND terminal of the surge protector again, and fix the GPS surgeprotector on the GPS surge protector support. The GPS surge protector support is shown inFigure 9-4.




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Figure 9-4 GPS surge protector support

You can install two GPS surge protectors in one GPS surge protector support.

Step 12 Waterproof the sleeve of GPS jumpers by applying the sealing clay.

----End

9.3 Installing the GPS Surge Protector and Jumper on theBBU3806 Side

This part describes how to install the surge protector and jumper on the BBU3806 side.

Context

CAUTIONWhen you install the surge protector to the BBU3806, the surge protector contacts the BBU3806through the shielding layer of the GPS clock signal cable. The position for installing the surgeprotector depends on that of the BBU3806.l The grounding cable of the surge protector is a green or green and yellow one. The cross-

sectional area of this cable is 25 mm2. If you prepare the grounding cable, choose a coppercable with a minimum cross-sectional area of 25 mm2.

l When the BBU3806 is installed in a 19-inch rack or on the wall in the equipment room,the surge protector can be fixed to the cable rack. In this case, you should ground the surgeprotector to the grounding bar outside the feeder window.

l When the BBU3806 is installed in an APM or a macro NodeB cabinet, you should groundthe surge protector to the internal grounding bar of the APM or the NodeB cabinet.

l When the BBU3806 is installed inside an AFB, the surge protector is directly connectedto the GPS port at the bottom of the AFB. In this case, you do not have to ground the surgeprotector.

Procedure

Step 1 When the BBU3806 is installed in the 19-inch rack or on the wall, perform the following steps:1. Connect the SMA male connector of the GPS clock signal cable to the GPS port on the

BBU3806.2. Test the Protect connector and the Surge connector by using a multimeter and check whether

the surge protector is short-circuited.l If it is short-circuited, replace the faulty surge protector with a new one.




9-5

l If it is not short-circuited, go to Step 1.3.

3. Fix the GPS jumper to the Surge connector of the surge protector and torque the connectorto 1 N・m. Then waterproof the joint by referring to 10 Sealing Outdoor Connectors.

4. Fix the N connector of the GPS clock signal cable to the Protect connector of the surgeprotector. Torque the connector to 1 N・m.

5. Secure the surge protector. Ground the surge protector depending on the field situation.

Figure 9-5 shows a completely installed surge protector.

Figure 9-5 Installing the GPS surge protector on the BBU3806 side

Step 2 When the BBU3806 is installed in the AFB, perform the following steps:1. Connect the SMA male connector of the GPS clock signal cable to the GPS port on the





4. Remove the N hexagon nut from the Surge connector, and then remove the spring washer,as shown in Figure 9-6.




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Figure 9-6 Removing the N hexagon nut and spring washer

(1) N hexagon nut (2) Spring washer

5. Remove the nut from the GPS connector at the bottom of the AFB, as shown in Figure9-7.

Figure 9-7 Ports on the AFB

(1) GPS connector

6. Install the surge protector in the AFB, and then lead the Surge connector through the GPSport, as shown in Figure 9-8.




9-7

Figure 9-8 Leading the connector of surge protector out of the AFB

7. Install the N hexagon nut and spring washer on the Surge connector, as shown in Figure9-9.

Figure 9-9 Tightening the N hexagon nut on the Surge connector




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8. Connect the feeder to the Surge connector of the surge protector and torque the connectorto 1 N・m. Then waterproof the joint by referring to 10 Sealing Outdoor Connectors.

Step 3 When the BBU3806 is installed in the AFB, perform the following steps:1. Test the Protect connector and the Surge connector by using a multimeter and check whether



2. Figure 9-10 shows how to lead the GPS jumper into the APM from its bottom.

Figure 9-10 Leading GPS jumper into the APM

(1) Cable hole for the GPS jumper to enter the APM

3. Link the jumper to the Surge connector on the surge protector. Tighten the Surge connectoruntil the fastening torque is 1 N・m.

4. Fix the N female connector of the GPS clock signal cable to the Protect connector of thesurge protector. Torque the connector to 1 N・m.

5. Waterproof the connectors labeled Surge and Protect by referring to 10 Sealing OutdoorConnectors.

6. As shown in Figure 9-11, lead the GPS clock signal cable through the waterproof filler ofthe APM.




9-9

Figure 9-11 Leading the GPS clock signal cable through the waterproof filler

(1) Cable hole for the GPS clock signal cable

7. As shown in Figure 9-12, route the GPS clock signal cable to the GPS port on the BBU3806and use cable ties to bind the cable.

Figure 9-12 Routing the GPS clock signal cable

8. Fix the SMA male connector of the GPS clock signal cable to the GPS port on the BBU3806.9. Remove the screw M8 from the GND port on the GPS surge protector. Install the surge

protector on the holder in the APM. Then fasten the screw M8, as shown in Figure 9-13.




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Figure 9-13 Securing the GPS surge protector

(1) Screw M8(2) Holder(3) GPS surge protector(4) GPS jumper(5) GPS clock signal cable

----End

9.4 Installing the GPS Surge Protector and Jumper on theBBU3806C/BTS3803C Side

This part describes how to install the surge protector and jumper on the BBU3806C/BTS3803Cside.




9-11

Context

CAUTIONThe following requirements should be met for the GPS surge protector on the BBU3806C/BTS3803C side:l The surge protector should be directly connected to the GPS port on the BBU3806C

module.l No grounding cable is required for the surge protector.

Procedure

Step 1 Test the Protect connector and the Surge connector by using a multimeter and check whetherthe surge protector is short-circuited.

If... Then...

The two connectors are short-circuited. Replace the surge protector with a new one.

The two connectors are not short-circuited. Go to Step 2.

Step 2 Link the jumper to the Surge connector on the surge protector. Tighten the Surge connector untilthe fastening torque is 1 N・m.

Step 3 Fix the Protect connector of the surge protector directly to the GPS port on the outdoor equipmentand torque the Protect connector to 1 N・m.

Step 4 Waterproof the joints by referring to 10 Sealing Outdoor Connectors (for outdoor equipmentonly).

Figure 9-14 shows a completely installed surge protector.




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Figure 9-14 Installing the GPS surge protector on the BBU3806C/BTS3803C side

----End

9.5 Installing the GPS Surge Protector and Jumper on theBBU3900 Side

This part describes how to install the surge protector and jumper on the BBU3900 side.

Context

CAUTIONWhen you install the surge protector to the BBU3900, the surge protector contacts theBBU3900 through the shielding layer of the GPS clock signal cable. The position for installingthe surge protector depends on that of the BBU3900.l The grounding cable of the surge protector is a green or green and yellow one. The cross-

sectional area of this cable is 25 mm2. If you prepare the grounding cable, choose a coppercable with a minimum cross-sectional area of 25 mm2.

l When the BBU3900 is installed in a 19-inch rack or on the wall in the equipment room,the surge protector can be fixed to the cable rack. In this case, you should ground the surgeprotector to the grounding bar outside the feeder window.

l When the BBU3900 is installed in an APM30 power cabinet or a indoor macro cabinet,you should ground the surge protector to the internal grounding bar of the APM30 powercabinet or a indoor macro cabinet.




9-13

Procedure

Step 1 When the BBU3900 is installed in the 19-inch rack or on the wall, perform the following steps:1. Connect the SMA male connector of the GPS clock signal cable to the GPS port on the




3. Fix the GPS jumper to the Surge connector of the surge protector and torque the connectorto 1 N・m. Then waterproof the joint by referring to 10 Sealing Outdoor Connectors.


5. Secure the surge protector. Ground the surge protector depending on the field situation.

Step 2 When the BBU3900 is installed in the APM30 power cabinet, perform the following steps:1. Test the Protect connector and the Surge connector by using a multimeter and check whether



2. Lead the GPS jumper into the APM30 power cabinet from its bottom.3. Link the jumper to the Surge connector on the surge protector. Tighten the Surge connector

until the fastening torque is 1 N・m.4. Fix the N female connector of the GPS clock signal cable to the Protect connector of the

surge protector. Torque the connector to 1 N・m.5. Waterproof the connectors labeled Surge and Protect by referring to 10 Sealing Outdoor

Connectors.6. Route the GPS clock signal cable to the GPS port on the BBU3900 and use cable ties to

bind the cable.7. Fix the SMA male connector of the GPS clock signal cable to the GPS port on the

BBU3900.

----End




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10 Sealing Outdoor Connectors

To prevent outdoor cables from aging and to maintain their stable performance, you need to sealthe outdoor connectors. This topic illustrates how to seal an outdoor feeder connector.

Prerequisitel The materials required for sealing the outdoor connector are ready. The materials are PVC

insulating tape and waterproof tape, as shown in Figure 10-1.

Figure 10-1 PVC insulating tape and waterproof tape

(1) PVC insulating tape (2) Waterproof tape

l The tools, such as scissors, required for sealing the outdoor connector are ready.

l The feeder connector to be sealed has passed the Voltage Standing-Wave Ratio (VSWR)test.

Procedure

Step 1 Wrap the connector by using waterproof tape, as shown in Figure 10-2.

1. Wrap the connector from the point 20 mm [0.79 in.] away from the end of the connectorto the point 20 mm [0.79 in.] away from the other end of the connector.

2. Do not cut off the waterproof tape and continue to wrap the connector for the second andthird time.

3. After the connector is wrapped three times, cut off the waterproof tape.

NodeBSatellite Antenna System User Guide 10 Sealing Outdoor Connectors


10-1

Figure 10-2 Wrapping the connector in three layers of waterproof tape

CAUTIONl Ensure that each layer covers at least 50% surface of the layer below it.

l Stretch the waterproof tape evenly to 1/2 of its original width so that it clings properly to theconnector.

Step 2 Hold and press the wrapped waterproof tape to ensure that the connector is tightly and evenlywrapped, as shown in Figure 10-3.

Figure 10-3 Holding and pressing the wrapped waterproof tape

Step 3 Wrap the connector by using PVC insulating tape, as shown in Figure 10-4.1. Wrap the connector and ensure that the PVC insulating tape completely covers the

waterproof tape and extends beyond the waterproof tape by 20 mm [0.79 in.] at both ends.2. Do not cut off the PVC insulating tape and continue to wrap the connector for the second

and third time.

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3. After the connector is wrapped three times, cut off the PVC insulating tape.

Figure 10-4 Wrapping the connector in three layers of PVC insulating tape

CAUTIONEnsure that each layer covers at least 50% surface of the layer below it.

Step 4 Hold and press the wrapped PVC insulating tape to ensure that the connector is tightly and evenlywrapped, as shown in Figure 10-5.

Figure 10-5 Holding and pressing the PVC insulating tape

Step 5 Use two cable ties to bind the PVC insulating tape at both ends, as shown in Figure 10-6.

NodeBSatellite Antenna System User Guide 10 Sealing Outdoor Connectors


10-3

Figure 10-6 Wrapped feeder connector

----End

10 Sealing Outdoor ConnectorsNodeB



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11 Waterproofing the Feeder Window

The feeder window are categorized into encapsulation window and glass window. You shouldwaterproof the feeder window based on its type.

Procedurel Waterproof the encapsulation window.

1. Put the two semicircle sealing sleeves around the outside of the big holes in thewindow.

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

3. Inject glass cement around the window.4. Block the holes that are not in use.Figure 11-1 shows the feeder window after a waterproofing treatment.

Figure 11-1 Waterproofed feeder window

l Waterproof the glass window.1. Remove the glass, and then cut an opening in a proper size at one corner of the glass.

NodeBSatellite Antenna System User Guide 11 Waterproofing the Feeder Window


11-1

2. Protect the cut by using rubber or tapes. Wrap the feeder to be led through the openingwith tapes.

3. Lead the feeder indoors through the glass window.4. Waterproof the joint between the glass and the feeder by using glass cement.

----End

11 Waterproofing the Feeder WindowNodeB



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12 Checking the Installation of the SatelliteAntenna System

About This Chapter

This part describes how to check the installation of the satellite antenna system.

Procedure

Step 1 Check the installation of the antenna by referring to 12.1 Checklist for Satellite AntennaInstallation.

Step 2 Check the installation of the feeder by referring to 12.2 Checklist for Feeder Installation.

Step 3 Check the installation of the jumpers by referring to 12.3 Checklist for Jumper Installation.

Step 4 Check the installation of the surge protector by referring to 12.4 Checklist for Surge ProtectorInstallation.

Step 5 Check the installation of the grounding bar by referring to 12.5 Checklist for Grounding BarInstallation.

Step 6 Check the installation of the feeder window by referring to 12.6 Checklist for Feeder WindowInstallation.

----End

NodeBSatellite Antenna System User Guide 12 Checking the Installation of the Satellite Antenna System


12-1

12.1 Checklist for Satellite Antenna InstallationThis part provides the checklist for satellite antenna installation.

l The location for installing the antennas should be in compliance with the design.

l The antenna should be within the protection coverage area of the lightning rod. Thecoverage area refers to the area that falls within the angle of 30° from the top of the lightningrod.

l The antenna stand should be securely mounted on the tower or on the rooftop.

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

l The antenna should stand upright, with the error (if any) less than ±2°.

l The part of the antenna that protrudes from the tower platform should be at least 2 m [6.56ft].

l For the antenna installed on the top of a building, the horizontal distance between theantenna and the antenna lightning rod should be at least 2 m [6.56 ft].

l The error of the azimuth angle should not be greater than 5°, and the error of the pitch angleshould not be greater than 0.5°.

l The antennas are free from any interference from the tower structure in the forwarddirection. The part of the antenna that protrudes from the tower platform should be at least1 m [3.28 ft].

12.2 Checklist for Feeder InstallationThis topic describes the checklist for the feeder installation.

Checklist for Feeder Layoutl The feeders should not be broken or twisted. No copper wires are exposed.

l The bending radius of a feeder should be at least 20 times larger than the diameter of thefeeder.

l The fixing clips of the feeders should be spaced evenly and oriented in the same directionafter they are secured.

l The feeders should not cross each other. They should be arranged in neat and straight rowand column at the entry to the equipment room. The degrees of their bending should be thesame.

l In accordance with the standard requirements, the labels on the feeders and jumpers shouldbe neatly attached and face the same direction.

l The feeders should keep straight for at least 0.5 m [1.64 ft] in both directions from the pointwhere they are led into the equipment room.

l When the front of the cabinets is in parallel with the cabling direction of the feeder lead,the feeders in each sector should be arranged in the same row. The arrangement sequencesof all rows should be the same. When the front of the cabinets is perpendicular to the cablingdirection of the feeder lead, the feeders in each sector should be arranged in the samecolumn. The sequence for arranging all columns should be the same.

l The connectors of the feeders should be correctly prepared and tightly fastened.

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l The feeders should be correctly connected and arranged in the right sectors.

l Waterproof curves should be made for the feeders before the feeders are led into theequipment room.

Checklist for Feeder Groundingl The grounding locations of the feeders should be in compliance with Location

Requirements for Grounding the Feeder of the Mini Base Station and LocationRequirements for Grounding the Feeder of the Macro Base Station.

l The grounding locations of the feeders should meet the requirements described in LocationRequirements for Grounding the Feeder of the Mini Base Station.

l The grounding joints of the feeders should be securely bound and properly waterproofed.

l If the feeders from the building top are led into the equipment room through a downwardcable ladder along the wall, the ladder should also be grounded.

l The grounding cables of the feeders should be led from the top to the bottom. The anglebetween the feeders and the corresponding grounding cables should not be larger than 15°.

l The terminals of the feeder grounding clips should be fixed to the tower nearby.

l The antennas and feeders installed on the rooftop should be grounded to the nearestlightning protection grounding grid.

l The exposed conductors of the feeder grounding kits should be wrapped with waterprooftap or be coated by paint.

12.3 Checklist for Jumper InstallationThis topic provides the checklist for the jumper installation.

l All connectors of outdoor jumpers should be waterproofed.

l Waterproof curves should be made for the jumpers.

l The jumpers connected to the antennas should be bound through the crossbars of the antennasupport onto the steel frame of the tower.

l A certain extra length should be considered for the cutting of the cable ties.

l The minimum bending radius of a jumper should be 20 times larger than the diameter ofthe jumper.

12.4 Checklist for Surge Protector InstallationThis part provides the checklist for surge protector installation.

l The Protect connector of the surge protector for the antenna should face the satelliteantenna.

l The Protect connector of the surge protector for the equipment should face the base station.

l The surge protectors for the antenna and the equipment should be properly grounded.

12.5 Checklist for Grounding Bar InstallationThis topic describes the checklist for grounding bar installation.

NodeBSatellite Antenna System User Guide 12 Checking the Installation of the Satellite Antenna System


12-3

l The grounding bar should be isolated from the wall. The routing path of the groundingcable should be as short as possible.

l The outdoor grounding bar should be connected to the underground grounding grid througha proper route.

12.6 Checklist for Feeder Window InstallationThis topic describes the checklist for feeder window installation.

l The holes for adding glue in the sealing gland of the feeder window should face upward.The plates of the encapsulation window should be installed indoors.

l The feeder window installed on the building top should be sealed securely.

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Index

Iinstallation procedure

satellite antenna system, 5-1installing satellite antenna

G&T Timing and surge protector, 7-2installing satellite antenna support

on metal pole, 6-9on rooftop enclosure, 6-5on tower platform, 6-10

Lleading feeder, 8-8

Rrouting feeder, 8-2

Ssatellite antenna, 2-2satellite antenna system installation preparation, 3-1satellite surge protector, 2-2sealing, 10-1spacing requirement

satellite antenna, 4-1

Wwaterproofing feeder window, 11-1

NodeBSatellite Antenna System User Guide Index


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NodeB Satellite Antenna System User Guide(03)

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Transcript of NodeB Satellite Antenna System User Guide(03)