Alarms (Db-15M); Table 3-11. Alarm Interface Connector Pinouts - Comtech EF Data CDM-425 Installation And Operation Manual

3.2.3.2

Alarms (DB-15M)

Rear Panel Connectors and Pinouts
Unit alarms are provided on this 15-pin Type 'D' male connector.

Table 3-11. Alarm Interface Connector Pinouts

(L>R)
Name
Pin #
1
GND Ground
9
EXT-OFF EXT Carrier OFF
2
AGC AGC Voltage (Rx signal level, 0 to 10 Volts)
10
N/A Spare (No connection)
3
RX-Q Rx Q Channel (Constellation Monitor)
11
RX-I RX I Channel (Constellation Monitor)
4
UNIT-COM Unit Fault
12
UNIT-NO Unit Fault (Energized, No Fault)
5
UNIT-NC Unit Fault (De-energized, No Fault)
13
TX-COM Tx Traffic
6
TX-NO Tx Traffic (Energized, No Fault)
14
TX-NC Tx Traffic (De-energized, No Fault)
7
RX-COM Rx Traffic
15
RX-NO Rx Traffic (Energized, No Fault)
8
RX-NC Rx Traffic (De-energized, No Fault)
CDM-425 Advanced Satellite Modem
Signal Function
3–15
Revision 0
MN-CDM-425