Comtech EF Data cdm-570a - 1:1 Control Connector, DB-9 F; Table 3-6. Alarms Connector Pin Assignments; Table 3-7. 1:1 Control Connector Pin Assignments

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Rear Panel Connectors and Pinouts 3–12 MN-CDM570A
Table 3-6. Alarms Connector Pin Assignments
Pin #
Signal Function
Name
1
Ground
GND
9
EXT Carrier OFF
EXT-OFF
2
AGC Voltage (Rx signal level, 0 to 10 volts)
AGC
10
No Connection
N/C
3
Rx Q Channel (Constellation monitor)
RX-Q
11
Rx I Channel (Constellation monitor)
RX-I
4
Unit Fault
UNIT-COM
12
Unit Fault (Energized, No Fault)
UNIT-NO
5
Unit Fault (De-energized, Faulted)
UNIT-NC
13
Tx Traffic
TX-COM
6
Tx Traffic (Energized, No Fault)
TX-NO
14
Tx Traffic (De-energized, Faulted)
TX-NC
7
Rx Traffic
RX-COM
15
Rx Traffic (Energized, No Fault)
RX-NO
8
Rx Traffic (De-energized, Faulted)
RX-NC
3.2.3.4 1:1 Control Connector, DB-9F
Use this 9-pin type ‘D’ female connector (DB-9F) to connect the modem only to
a CRS-170A (L-Band) or CRS-180 (70/140 MHz) switch in 1:1 redundancy
configurations.
Table 3-7. 1:1 Control Connector Pin Assignments
Pin #
Description
Direction
5
Ground
---
9
Fused +12 volt
Out
4
Redundancy In 2
In
8
Redundancy Out 2
Out
3
Redundancy In 1
In
7
Redundancy Out 1
Out
2
Receive Serial Data – auxiliary channel
In
6
Transmit Serial Data – auxiliary channel
Out
1
Ground
---