Specifications

Appendix L – Connectors and Indicators - 31
Appendix L – Connectors and Indicators
The SPS-5v7 paging system connectors include the following:
 Power (12VDC, 2 pin positive lock Molex)
 Serial Data (DB-9 female)
 Alarm Monitoring (RJ-45 jack, 8 pin). Pins 1 and 2 are the Opto-isolated contact monitoring input pins.
The SPS-5v7 paging system LED indicators include the following:
 Power (red LED)
 Alarm
 Carrier Detect
 RF TX
The pinout of the RJ-45 connector is:
1 Opto input #1
2 Opto input #2
3 RS-485- (not used in this model)
4 GND
5 +12V, current limited (available as voltage source for alarm input circuit)
6 RS-485+ (not used in this model
7 No connection
8 GND
The pinout of the DB-9F connector is:
1 CD (not used)
2 RD (data output by paging system, typically required)
3 TD (data received by paging system, required)
4 DTR (not used)
5 GND (required)
6 DSR (signal output by paging system, requirement depends on host system)
7 RTS (signal input to paging system, required only if hardware flow control mode is active)
8 CTS (signal output by paging system, required only if hardware flow control mode is active)
9
RI (not used)