3 Board
M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3-32
Huawei Technologies Proprietary
Issue 01 (2006-11-18)
Figure 3-23
MDU functional structure
Isolator
Isolator
Three-decibel
bridge
Isolator
Isolator
Three-decibel
bridge
Three-decibel
bridge
Divider
TX1
TX2
COM1
TX3
TX4
COM2
IN1
IN2
COM3
RX5
RX6
RX7
RX8
RX1
RX2
RX3
RX4
RXIN1
RXIN2
Divider
3.9.2 Panel
show the MDU panel.