12.1 Board Types and Functions of BTS ...........................................................................................12-1
12.2 Introduction to Main BTS Modules ...........................................................................................12-4
12.2.1 RFE Module....................................................................................................................12-4
12.2.2 HPA .................................................................................................................................12-6
12.2.3 TRX.................................................................................................................................12-8
12.3 Installing and Replacing Boards ..............................................................................................12-10
12.4 Introduction to BDS Plug-in Shelves .......................................................................................12-13
13 Hardware Installation Check............................................................................................................. 13-1
13.1 Cabinet Check ............................................................................................................................13-1
13.2 Check of cabling rack.................................................................................................................13-2
13.3 Laying, Binding and Identification of Cables ............................................................................13-2
13.4 Installation Check in terms of power cables and ground wires..................................................13-3
13.5 Check of T1 Cable Installation...................................................................................................13-5
13.6 Sensor Installation Check...........................................................................................................13-5
13.7 Installation Check of Connections inside a Cabinet...................................................................13-6
13.8 Installation Check of Indoor 1/2" Jumpers.................................................................................13-6
13.9 Installation and Check of Lightning Arrester .............................................................................13-7
13.10 Installation and Check of Lightning Arrester Rack..................................................................13-7
13.11 Installation and Check of Main Feeder and GPS Feeder..........................................................13-7
13.12 Installation and Check of Feeder Windows and Waterproof Bend of the Main Feeder ...........13-9
13.13 Installation and Check of Three-way Feeder Card.................................................................13-10
13.14 Installation and Check of Outdoor 1/2" Jumpers ...................................................................13-10
13.15 Installation and Check of an Antenna .................................................................................... 13-11
13.16 Check of the Standing Wave Ratio of a Feeder......................................................................13-13
13.17 Check of Indoor/Outdoor Environment .................................................................................13-13
14 Power-on/Power-off............................................................................................................................. 14-1
14.1 Check before Power-on..............................................................................................................14-1