M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
2 Cabinet
Issue 01 (2006-11-18)
Huawei Technologies Proprietary
2-11
Functions
The common subsystem is composed of the TMU, the PSU, and the PMU.
It performs the following functions:
!
Managing and controlling other subsystems and modules
!
Collecting alarm information
!
Providing multiple basic clocks for other subsystems and modules
!
Communicating with the O&M system
!
Processing signaling and managing resources
!
Supplying power and monitoring and managing power
!
Providing multiple built-in transmission ports
2.2.3 Signal Processing Subsystem
Position in the System
shows the position of the signal processing subsystem.
Figure 2-8
Position of the signal processing subsystem
Fiber
(Optional)
TDU
TMU
TRX
PSU
TEU
TES
PMU
FMU
TMA
TRX
PBU
TRX
CDU
CDU
ECDU
TMA
TMA
TMA
TMA
E1
Common
Subsystem
Signal Processing
Subsystem
Antenna Feeder
Subsystem
FHBUS
BSC
External Alarm
TMA
CBUS/TBUS/DBUS
shows the system structure of the BTS30/312 when the TEU and the TES are configured. The
BTS3012A and the BTS3006A differ only in the common subsystem, as shown in
.
Functions
The signal processing subsystem consists of TRXs, PBUs, and CDUs.