Operating instructions

Electrical Interfaces RCS20 M:N Redundancy Switch
5-16 TM056 - Rev. 2.3
67 SYNC RS-B Synchronous Data Request to Send - B Input
68 SYNC RR-B Synchronous Data Receiver Ready B Output
RCU20 Connector Pinouts
Table 5-13.
J1 - Switch Interface Control Card - Alarms - 9-pin ‘D’ Male
Pin No. Signal Description Direction
1 MJA-NC Major Alarm - NC None
2 MJA-C Major Alarm - C None
3 MJA-NO Major Alarm - NO None
4 NC No Connect None
5 NC No Connect None
6 NC No Connect None
7 MNA-NC Minor Alarm - NC None
8 MNA-C Minor Alarm - C None
9 MNA-NO Minor Alarm - NO None
Table 5-14.
J2 - Switch Interface Control Card -
RS232 Terminal Interface - 9-Pin ‘D’ Female
Pin No. Signal Description Direction
1 NC No Connect None
2 RxD Receive Data Input
3 TxD Transmit Data Output
4 NC No Connect None
5 GND Ground None
6 NC No Connect None
7 NC No Connect None
8 NC No Connect None
9 NC No Connect None