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User Manual
Airbridge cBTS3612 CDMA Base Station
Fan cover port interface module
l
It is connected with the fan cover of BBFM.
3) Panel indicator
LED1: BTRM operating signal
LED2: Fan operating signal
LED3: BHPA operating signal
4) Index
Size of BBFL: 55.0mm%25.0mm.
2.4 Antenna & Feeder Subsystem
2.4.1 Overview
BTS antenna & feeder subsystem consists of two parts: RF antenna & feeder, and
dual-satellite synchronization antenna & feeder. The former transmits the modulated
RF signals and receives MS signals, while the latter provides precise
synchronization for CDMA system.
2.4.2 RF Antenna & Feeder
RF antenna & feeder of the BTS is composed of outdoor antenna, jumper from
antenna to feeder, feeder, and the jumper from feeder to cabinet -top, as shown in
Figure 2-24.
2-43
System Description
2 Hardware Architecture
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