Specifications

Operations Manual, Redundant System Controllers 209351 REV B 53
RCP2 J5 Serial Local
SSPA1 Serial Main
J4
SSPA2 Serial Main
J4
SSPA3 Serial Main
J4
1,9 (RX+; 120 Ohm Termination) 1 (TX+) 1 (TX+) 1 (TX+)
2 (RX-) 2 (TX-) 2 (TX-) 2 (TX-)
3 (TX-) 3 (RX-) 3 (RX-) 3 (RX-)
4 (TX+) 4,9 (RX+; 120 Ohm
Termination)
4,9 (RX+; 120 Ohm
Termination)
4,9 (RX+; 120 Ohm
Termination)
5 (Ground) 5 (GND) 5 (GND) 5 (GND)
RCP2 J8 Ext. Alarm
SSPA1 Serial Main
J4
SSPA2 Serial Main
J4
SSPA3 Serial Main
J4
1 (Ext. Alarm 1) 8 (Summary open on
fault)
2 (Ext. Alarm 2) 8 (Summary open
on fault)
3 (Ext. Alarm 3) 8 (Summary open on
fault)
4 (Ground) 7 (Summary
Common)
7 (Summary
Common)
7 (Summary
Common)
Table 4-2: Rack Mount SSPA Wiring
Table 4-3: vBUC Wiring
RCP2 J5 Serial Local
vBUC1 Serial Main
J4*
vBUC2 Serial Main
J4
vBUC3 Serial Main
J4
1,9 (RX+; 120 Ohm Termination) R (TX+) R (TX+) R (TX+)
2 (RX-) U (TX-) U (TX-) U (TX-)
3 (TX-) U (RX-) U (RX-) U (RX-)
4 (TX+) R (RX+) R (RX+) R (RX+)
5 (Ground) L (Isolated GND);
J,K (Ext. Mute, GND)
L (Isolated GND);
J,K (Ext. Mute, GND)
L (Isolated GND);
J,K (Ext. Mute, GND)
RCP2 J8 Ext. Alarm
vBUC1 M&C J4 vBUC2 M&C J4 vBUC3 M&C J4
1 (Ext. Alarm 1) D (Summary open on
fault)
2 (Ext. Alarm 2) D (Summary open on
fault)
3 (Ext. Alarm 3) D (Summary open on
fault)
4 (Ground) F (Summary
Common)
F (Summary
Common)
F (Summary
Common)
* If the cable length exceeds 50 ft., a termination resistor of 120 Ohms must be installed between R and U of the
vBUC1 M&C J4 connector.