ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual
10-4
1 MTRX 2 RFM 3 MPD400W 4 DIV
5 MLNA 6 MPA 7 Heater 8 DUP
Fig. 10.1-4 Layout of Modules in a ZXCBTS Remote Station
10.1.3 Functions of the Modules
The following modules and accessories need be installed:
1. BDM
BDM is the core module of a ZXCBTS micro-BTS, which completes the
modulation & demodulation of baseband data, signaling processing, resources
management and operation & maintenance functions.
2. MTRX
MTRX provides interfaces to BDM and sends transmitted or received basedband
data as well as the information on configuration, control, status and alarms. It
achieves up conversion, intermediate frequency bandpass filter, transmit link
gain control and signal amplification on forward links. Moreover, it