Idr Backward Alarms Connector (P5A); Unit Alarms (P5B); Table 5-7. Idr Alarm Interface Connector Pin Assignments; Table 5-8. Alarm Interface Connector Pin Assignments - Comtech EF Data CDM-600 Installation And Operation Manual

CDM-600 Satellite Modem
Connector Pinouts
5.7

IDR Backward Alarms Connector (P5A)

The IDR Alarm interface connection is a 15-pin female connector located on the rear
panel of the modem. Refer to Table 5-7 for pin assignments.

Table 5-7. IDR Alarm Interface Connector Pin Assignments

Pin #
2
9
1
10
4
11
3
6
13
5
14
8
15
7
12
5.8

Unit Alarms (P5B)

Unit alarms are provided on a 15-pin male connector located on the rear panel of the
modem. Refer to Table 5-8 for pin assignments.
Pin #
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1
Signal Function
Backward Alarm 1 is active
Backward Alarm 1 is not active
TBD
Backward Alarm 2 is active
Backward Alarm 2 is not active
Backward Alarm 3 is active
Backward Alarm 3 is not active
TBD
Backward Alarm 4 is active
Backward Alarm 4 is not active
Ground

Table 5-8. Alarm Interface Connector Pin Assignments

Signal Function
Rx Traffic (De-energized, Faulted)
Rx Traffic (Energized, No Fault)
RX Traffic
Tx Traffic (De-energized, Faulted)
Tx Traffic (Energized, No Fault)
Tx Traffic
Unit Fault (De-energized, Faulted)
Unit Fault (Energized, No Fault)
Unit Fault
RX I Channel (Constellation monitor)
RX Q Channel (Constellation monitor)
No Connection
AGC Voltage (Rx signal level, 0 to 2.5 volts)
EXT Carrier OFF
Ground
Name
BA-1-NO
BA-1-COM
BA-1-NC
MON-A
BA-2-NO
BA-2-COM
BA-2-NC
BA-3-NO
BA-3-COM
BA-3-NC
MON-B
BA-4-NO
BA-4-COM
BA-4-NC
GND
5–5
Revision 7
MN/CDM600.IOM
Name
RX-NC
RX-NO
RX-COM
TX-NC
TX-NO
TX-COM
UNIT-NC
UNIT-NO
UNIT-COM
RX-I
RX-Q
N/C
AGC
EXT-OFF
GND