2 BTS installation training (01 august 2006)

 Installing the Cabinet Installation of boards and functional modules in the cabinet  Installation of cabinet cables  Installation of iSite... Installing the Cabinet Cabinet placeme

Course No : EQA R1 008

Composer : Engineering Quality

Dept.

BTS Introduction

 Dimensions of BTS312 cabinet: 1880mmx650mmx500mm

 Dimensions of BTS30 cabinet: 1600mmx600mmx450mm

 Installing the Cabinet

 Installation of boards and

functional modules in the cabinet

 Installation of cabinet cables

 Installation of iSite

Installing the Cabinet

 Cabinet placement principle

 Cabinet installation flow

Cabinet Placement Principle

 Reserve at least 0.8m between

the side face of the cabinet and

the wall

 Reserve at least 1m between

the rear side of the cabinet

and the wall

 Reserve an aisle at least 1m in

width in the equipment room

 Minimize the distance between

the cabinet and the feeder

window to reduce the length of

feeder

Terminal maintenance

Determining the Installation Position

 Determine the cabinet installation position based on the design drawings

If no design drawing is available, confirm the position with the customer

 The cabinet may be installed on the cement floor or anti-static floor This slide only introduces how to install the cabinet on the cement floor

 Key points:

1 Take the future expansion into consideration

2 Pay attention to the positions where the power supply, grounding cable, and antenna feeder are lead in and adjust them when necessary

Cement Floor Installation Flowchart

 Flowchart of accessory

installation on the

cement floor

Note that the notch on the template coincides with the front side of the cabinet.

Holes and border lines

of the cabinet marked according to the line drawing template

Positioning the Cabinet

1 Determine the position of the cabinet

 Key points:

 Comply with the design

 Reserve proper space around the

cabinet to facilitate the maintenance

 Meet the space requirement for

 Positions of holes are correct Pay

attention to the position of combined

cabinet

Note that the notch on the template coincides with the front side of the cabinet.

Holes and border lines

of the cabinet marked according to the line drawing template

Positioning the Cabinet

 Remove the dust

 Verify dimensions of the

hole.

4 Install the expansion bolt

 Key points:

 The guiding rib is properly

inserted to the guiding slot

of the expansion tube.

Mount Set

The mount set is generally used

for cabinet installation The

mount set is composed of upper

and lower frames The upper

frame must be fixed to the bottom

of the cabinet and the lower

frame to the cement floor

1

2

3 4 5

(1) Lower frame (2) Upper frame (3) Flat washer 12 (4) Φ 12 spring

washer (5) Bolt (M12x30)

Installing the Frame

1 Install the lower frame

 Key points:

 The insulation plate is installed correctly

 The fixing hole of the lower frame is aligned with

the hole of the expansion bolt

 Ensure the space between the two lower frames

2 Level the lower frame.

 Key points:

 Use the horizontal ruler.

 Ensure that two directions of the cabinet are level

 The leveling pad is inserted to the correct place.

Insulation Test and Cabinet Installation

1 Insulation test:

 Key points:

 Use the mega ohm range of the

multimeter

 Test the insulation between the cabinet

and the floor.

 The test is passed if the resistance is

larger than 5 mega ohm

2 Level and fasten the cabinet.

 Key points:

 Place the cabinet in position and push

the cabinet in horizontally

 Use the horizontal ruler.

 Ensure that two directions of the cabinet

are level

 Ensure that the cabinet is installed

vertically

 The installation order of the insulation

covering, spring washer, and flat washer

is correct

 The expansion bolts are diagonally

fastened in turn

The installation order of the insulation covering, spring washer, and flat washer is correct

Installing the Air Breaker Box, Fan Box, and Sub racks

From top to bottom, the cabinet is installed with:

1 Air breaker box

2 Sub racks

3 Fan box

Installing the Air Breaker Box

 Slide in the air breaker box along the

guide rail After it is in position, fasten

the screws on the panel

Installing Sub racks

 Before installing or removing

the CDU sub rack, TRX sub

rack, or common unit sub rack,

remove the rear door of the

cabinet, and unplug all power

connectors on the backplane of

the sub rack The installation

procedure is opposite to the

removal procedure

Installing Sub racks

Installing the Fan Box

 Slide the fan box in along the

guide rail After it is in position,

fasten the screws on the panel

Fan box

Fan box

Installation of Boards and Functional Modules in the Cabinet

Key points:

Confirm that the settings of DIP switch on

the backplane are correct

If you bring the board into the equipment

room from outside in winter, do not

unpack and install the board immediately

Check that the installation slot is correct

The fastening screws of the board must

be tightened

Empty slots must be installed with

dummy panels

Installing Boards and Functional Modules in the Cabinet

CDUs are installed in the

CDU sub rack, TRXs in the

TRX sub rack, and PSUs ,

PMUs in the common unit sub

rack

You may need to remove the

front and rear doors of the

cabinet when installing the sub

racks

Installing Boards and Functional Modules in the Cabinet (Precautions)

Anti-static requirements:

Boards and modules have

electrostatic sensitive

components Thus, observe the

anti-static requirements when

installing or replacing boards or

modules

Installing Boards and Functional Modules in the

Cabinet (Precautions)

 Before installing a board or module:

 Confirm whether you need to set the DIP switch or the jumper on the backplane

 Confirm whether you need to set the DIP switch or the jumper on the board or module

Installing Cables

Install power cables

Install grounding cables

Installing transmission cables

Install jumpers of the antenna

feeder

Attach and bundle the labels

After the external cables are

installed, check whether the ports

not in used are properly capped and

whether the connector water-proof

measures for the external cables

are effective

Installing power cables of the cabinet

－ 48V － GND － PGND power supply installation:

 Key points:

 The route is correct and conforms to the manual

 The polarities are correct and correspond to the labels

 Screws are fastened

 Connections are reliable

 The radius of the curve meets the requirements

 Labels are in order

 Contents of the labels are legible

Cabinet External Cable Installation

— Power Grounding Cable

 Lay and install the power cables and grounding cables

 Installation order: 1) Prepare the connectors of the cables on the BTS side 2) Attach labels 3) Install the cables and top-set box 4) Bundle the

cables 5) Connect the power cabinet and indoor ground bars

Cabinet External Cable Installation — PGND Cable

 Key points:

1 Crimp the lug reliably No cooper wire should be exposed

2 The labels are correct and legible

3 Cable ties are bound towards the same direction Spaces between cable ties must be consistent No sharp edge should be exposed

Cabinet External Cable Installation

— Signal Transmission Cable

 Install the top-set box: signal cable with

E1 connector on the top of the cabinet

 Install the match head on the top of the

cabinet

 Lay the 2M transmission cables: DDF box

(DDF frame)

Key points:

1 The label is legible and consistent

2 Power cables are separately bundled

3 Cable ties are bundled in compliance

with specifications

Installation of iSite

 iSite can be mounted on the wall or on the mast

 These two installation modes differ in the installation method of the iSite cavity, and are the same in installation and requirements of other parts, including boards and cables

Installation of iSite Cavity: Wall-Mounted Method

 Determine the installation position

Drill the holes and install the bracket

 Install the iSite main sub rack

Key points:

1 The bracket is level and secured

2 The main sub rack is reliably fixed

to the bracket

Installation of iSite Cavity: Mast-Mounted Method

 Install the U-shape clamp on the mast

 Install the bracket on the mast

 Install the main sub rack

Key points:

1 The U-shape clamp is in close and

reliable contact with the mast

2 The sun shelter is installed at an

appropriate height

Installation of iSite: Boards and Cable Connection

 Install the boards properly

 Ensure the close contact between boards and cavity

 Distribute and connect board cables

 Carry out water-proof measures

 Install the chassis

Installation of iSite: Boards and Cable Connection

 Point

 The transmission mode

setup dial code is correct

 Outside the metal label

binds solid, is easy to distinguish

 After measured, the cabinet

shell installation gap conforms to the standard, the outer covering screw screws tight and locked

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