Ericsson RBS 2106 Hardware Reference Manual page 262

4(8)
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 5; 6LJQDO 3DWK
The RX signal path is fed from the antennas through the feeders to the
Antenna Reference Point (ARP). The signal is then filtered and amplified in
the CDU. From the RX output of the CDU, the signal is fed to the ASU where
a small portion of the signal is fed to the RX input of the co-sited RBS. This is
shown in the figure below.
EN/LZT 720 0232 R1A
Ant. S1
Ant. S2
Ant. S3
Ant. S4
Ant. S5
Ant. S6
TMA
Atten.
control
No TMA
Coupler 1
Coupler 2
Coupler 3
Coupler 4
Coupler 5
Coupler 6
DC/DC
converter
CXU-RX1 (CDU1)
CDU1-RX1
CXU-RX2 (CDU1)
CDU1-RX2
CXU-RX1 (CDU2)
CDU2-RX1
CXU-RX2 (CDU2)
CDU2-RX2
CXU-RX1 (CDU3)
CDU3-RX1
CXU-RX1 (CDU3)
CDU3-RX2
+ 24 V
P008480A