Utility Connections Group; Remote Control (Db-9M); Table 3-10. Remote Control Connector Pinouts - Comtech EF Data CDM-425 Installation And Operation Manual

3.2.3

Utility Connections Group

3.2.3.1

Remote Control (DB-9M)

Rear Panel Connectors and Pinouts
The Remote Control interface is a 9-pin Type 'D' male connector. It is
intended for connection to an M&C computer or terminal device, and is user
selectable for either EIA-232 or EIA-485.

Table 3-10. Remote Control Connector Pinouts

(L>R)
Description
Pin #
1
Ground
6
EIA-485 Receive Data 'B' *
2
EIA-232 Transmit Data
7
EIA-485 Receive Data 'A' *
3
EIA-232 Receive Data
8
EIA-485 Transmit Data 'B'
4
Reserved – Do Not Use
9
EIA-485 Transmit Data 'A'
5
Ground
*Use for EIA-485 2-wire operation
CDM-425 Advanced Satellite Modem
Direction
––
In
Out
In
In
Out
––
Out
––
3–14
Revision 0
MN-CDM-425