Ericsson RBS 2106 Hardware Reference Manual page 307

The RF cables between the CDU and CXU and the CXU and dTRU are
supervised by the CXU.
5 Interfaces
 6LJQDO DQG 3RZHU ,QWHUIDFHV
7DEOH 
)XQFWLRQ
Input for RX signal from CDU
Output for RX signal to dTRU
CDU Bus connector for alarm and configuration setting
Power supply connector
 2SHUDWRU ,QWHUIDFH
7DEOH 
,QGLFDWRU
Operational
Fault
&RQQHFWRUV
,QGLFDWRUV
&RORXU
Green
Red
5(6)
4W\
6
12
1
1
EN/LZT 720 0240 R1A