1:1 Control Interface Connector, Db-9F; Table 3-6. Alarm Interface Connector Pin Assignments; Table 3-7. 1:1 Control Interface Connector Pin Assignments - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Rear Panel Connectors and Pinouts
Pin #
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1

3.4.3 1:1 Control Interface Connector, DB-9F

The 1:1 Control connection is a 9-pin type 'D' female connector (DB-9F). This
connector is used to connect the modem only to a CRS-170 switch in 1:1
redundancy configurations.

Table 3-7. 1:1 Control Interface Connector Pin Assignments

Pin #
1
2
3
4
5
6
7
8
9

Table 3-6. 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 10 volts)
EXT Carrier OFF
Ground
Receive Serial Data – auxiliary channel
Redundancy In 1
Redundancy In 2
Transmit Serial Data – auxiliary channel
Redundancy Out 1
Redundancy Out 2
Description
Ground
Ground
Fused +12 volt
3–9
Revision 12
MN/CDM570L.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
Direction
In
In
In
Out
Out
Out
Out