3 Board
M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3-2
Huawei Technologies Proprietary
Issue 01 (2006-11-18)
3.1 Overview
This chapter introduces board panels and board layouts, including indicators, DIP switches,
jumpers and ports on the BTS3X (the BTS30, the BTS312, the BTS3006A, and the
BTS3012A) boards. All board information is basically supplied on current product version.
For boards with multiple versions, the comparison between other versions and the current one
is provided.
lists all the boards described in this chapter.
Table 3-1
BTS3X boards
Board Name
Full Name
ABB Abis
Bypass
Board
ASU
Access network SDH transmission Unit
CDU
Combining and Distribution Unit
CMB
Common resource Backplane
ECDU
Enhanced Combining and Distribution Unit
EDU
Enhanced Duplexer Unit
EMU Environment
Monitor
Unit
EMUA
Environment Monitor Unit (A: version number)
ESCU
Enhanced Simple Combining Unit
FMU Fan
Monitor
Unit
MDU
Multi Combining and Distribution Unit
PAT
Passive Transmission Board
PBU Power
Boost
Unit
PMU
Power Monitor Unit
PSU
Power Supply Unit
PWB Power
Backplane
SCU
Simple Combining Unit
SPD
Surge Protection Device
TCB Transmission/Temperature
Control
Backplane
TCU Temperature
Control
Unit
TDU
Time Distribution Unit
TES
Transmission Extension power Supply unit
TEU Transmission
Extension
Unit