Appendix
115
Siemens Building Technologies
Fire Safety & Security Products 03.2007
12.5 Connector pin outs
I/O connector pin outs
AI (1 to 16) Alarm Inputs 1 to 16
GND Chassis Ground (9 connectors)
AO (1 to 16) Alarm Outputs 1 to 16
ARI Alarm Reset In
RS485 connector pin outs
Master unit Slave unit
+ J To J TX+
− J To J TX-
RS232 connector pin outs
Pin 1 DCD (Data Carrier Detect)
Pin 2 RXD (Receive Data)
Pin 3 TXD (Transmit Data)
Pin 4 DTR (Data Terminal Ready)
Pin 5 GND (System Ground)
Pin 6 DSR (Data Set Ready)
Pin 7 RTS (Request To Send)
Pin 8 CTS (Clear To Send)
Pin 9 RI (Ring Indicator)
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