Comtech EF Data CDM-625 - Manual (Page 84)

CDM-625 Advanced Satellite Modem Revision 15
Rear Panel Connectors and Pinouts MN-CDM625
3–14
3.2.3.4 1:1 Control (DB-9F)
The 1:1 Control connector is intended only for connection to a CRS-170A or CRS-180
Redundancy Switch.
The 1:1 Control connector is a 9-pin Type ‘D’ female connector.
Table 3-14. 1:1 Control Interface Connector Pinouts
Pin #
(R-L) Description
Direction
1 Ground –
6 Transmit Serial Data – auxiliary channel Out
2 Receive Serial Data – auxiliary channel In
7 Redundancy Out 1 Out
3 Redundancy In 1 In
8 Redundancy Out 2 Out
4 Redundancy In 2 In
9 Fused +12 volt Out Out
5 Ground –
3.2.3.5 Ext Ref In/Out
Connector Type Description Direction
BNC External Reference In/Out