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)
