3 Board
Figure 3-23 MDU functional structure
COM1
COM2
COM3
3.9.2 Panel
Figure 3-24
3-32
TX1
Isolator
TX2
Isolator
TX3
Isolator
TX4
Isolator
IN1
IN2
show the MDU panel.
Huawei Technologies Proprietary
M900/M1800 BTS3X Series Base Transceiver Station
Three-decibel
bridge
Three-decibel
bridge
Three-decibel
bridge
Hardware Description Manual
RX1
RX2
Divider
RX3
RX4
RXIN1
RX5
RX6
Divider
RX7
RX8
RXIN2
Issue 01 (2006-11-18)