Ericsson RBS 2106 Hardware Reference Manual page 383

The power cable to the bias injector is supervised and an alarm is generated if
the cable is not connected. The alarm is transmitted on the IOM bus.
3 Interface
3.1 Signal and Power Interface
Table 1
Nominal input voltage
Input voltage range
Non-destructive voltage
Maximum input power
Table 2
Voltage per output (1 – 6)
Current per output
(1)
3.2 Operator Interface
The TMA-CM has the following external interfaces:
•
•
•
Indicators
The TMA-CM has eight indicators on the front panel that shows the status of
each TMA and the status of the TMA-CM.
The indicators Fault and Operational indicate the status of the TMA-CM only,
not the status of the TMAs.
Input data
Output data
Tolerance ±1.0 V at TMA current 0 − 300 mA.
Tolerance ±1.5 V at TMA current 300 − 500 mA.
Power in (+24 V DC)
IOM bus
TMA power connector
+24 V DC
+20.0 – 29.5 V DC
0 – +32 V DC
60 W
(1)
+15 V DC
Maximum 500 mA
EN/LZT 720
5(6)
0250
R1A