Table 2-1 Composition And Functions Of Each Functional Subsystem Of The Bts3X - Huawei BTS3 Series Hardware Description Manual

2 Cabinet

Table 2-1 Composition and functions of each functional subsystem of the BTS3X

Functional Composition
Subsystem
Common TMU
Subsystem
TDU
ASU
PAT
TES
ABB
ABA
PSU
PMU
FMU
EMU
EMUA
SPD
Signal TRX
Processing
Subsystem
PBU
CDU
ECDU
2-8
M900/M1800 BTS3X Series Base Transceiver Station
Function
Provides the timing, transmission, and management functions for
the BTS.
Transfers the clock signals received from the TMU and other
signals to other units.
Completes the photoelectric conversion, provides E1 port and
self-rate cross connection between E1s.
Realize order communication with local transmission equipment,
far end photoelectric conversion, multiplexing and demultiplexing
of data, remote delay control, and far end delay control and
ranging.
Provides power suppliers for the TEU and transfers
communication.
Provides the Abis bypass, relays the BTS transmission, and
provides the transmission trunk loopback.
Aids the ABB to communicate with the TMU.
Provides the system with DC power supply.
Manages the power supply and collects alarms.
Manages and controls the fan in the fan box to ensure good heat
dissipation of the BTS.
Monitors the environment inside the cabinet and collects alarm
information.
Monitors the environment outside the cabinet and collects alarm
information.
Protect the power supply system from lightning.
Supports multiple frequency bands, receives the management and
configuration information sent by the TMU, and reports its own
status and alarm information.
Enhance the effective transmission power of the antenna to
enlarge the coverage area of the BTS.
Completes the duplexing of the reception and transmission
signals, filters and combines transmission signals, filters,
amplifies low noise, combines the receiving signals, and feeds the
TMA.
Provides similar functions with that provided by the CDU.
The difference between the CDU and the ECDU is that: a signal
port of the ECDU supports the maximum input power of 100 W,
but the CDU support the maximum input power of 60 W.
Huawei Technologies Proprietary
Hardware Description Manual
Issue 01 (2006-11-18)