Reference Manual
RBS 2206 Radio Base Station
EN/LZT 720 0225 R3A 15 (24)
TMA-CM – Tower Mounted Amplifier - Control Module
The Control Module is used to provide up to six ddTMAs with 15 V DC power
through the bias injector. It is also used to identify TMA faults and forward this
information to the alarm module in the RBS. The TMA-CM is mounted in an
OXU position.
Number of units per cabinet: 0 – 2
6 Interfaces
In this section all external and internal connections are listed, as well as the
test interface and the operator interface.
OXU
DXU
d
T
R
U
d
T
R
U
d
T
R
U
d
T
R
U
d
T
R
U
d
T
R
U
CDU
CDU
CXU
PSU
FAN
Cabinet LEDs
EPC-
bus
External alarms
ESB
Transmission lines
IOM-
bus
Y-links
P007455C
Option BFU
CDU
OMT
GPS
EOM
Cabinet ID
Figure 6 Block diagram showing internal power and signal paths
The connection field for external connectors is located at the top of the radio
cabinet inside the door. Internal connections, the test interface and operator
interface are located on some hardware units.