Reference Manual

5(6)
EN/LZT 720
0250 R1A
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 Input data
Nominal input voltage
+24 V DC
Input voltage range
+20.0 – 29.5 V DC
Non-destructive voltage
0–+32VDC
Maximum input power
60 W
Table 2 Output data
Voltage per output (1 – 6)
+15 V DC
(1)
Current per output
Maximum 500 mA
(1) Tolerance ±1.0 V at TMA current 0 − 300 mA.
Tolerance ±1.5 V at TMA current 300
− 500 mA.
3.2 Operator Interface
The TMA-CM has the following external interfaces:
• Powerin(+24VDC)
• IOM bus
• TMA power connector
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.