Comtech EF Data CRS-300 - Remote Control Connector, DB-9 M; Table 3-2. Remote Control Connector

CRS-300 1:10 Redundancy Switch MN/CRS300.IOM
Switch Connectors and Pinouts Revision 19
3–5
3.2.1.3 Remote Control Connector, DB-9M
The DB-9M Remote Control connector on the CRS-230 provides 2-Wire
EIA-232 and EIA-485 serial remote monitor and control access to the Switch.
Table 3-2. Remote Control Connector
Pin Signal Function Direction
1 Ground ---
6
EIA-485 Receive Data B (see note)
In
2
EIA-232 Transmit Data
Out
7
EIA-485 Receive Data A (see note)
In
3 EIA-232 Receive Data In
8
EIA-485 Transmit Data B
Out
4
Reserved - do not connect to this pin
---
9
EIA-485 Transmit Data A
Out
5
Ground
---