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Appendix D: Specifications
352
Serial RS-232 Port Pinouts
RS-232 Pin/signal definition
Pin No.
Signal
Direction
Description
1
DCD
Input
Data
2
RxD
Input
Receive data (data in)
3
TxD
Output
Transmit data
4
DTR
Output
Data terminal ready
5
GND
―
Signal ground
6
DSR
Input
Data set ready
7
RTS
Output
Request to send
8
CTS
Input
Clear to send
9
RI
Input
Ring indicator
Sensor RJ-12 Port Pinouts
RJ-12 Pin/signal definition
Pin No.
Signal
Direction
Description
1
+12V
―
Power
(500mA, fuse protected)
2
GND
―
Signal Ground
3
―
―
―
4
―
―
―
5
GND
―
Signal Ground
6
1-wire
Used for Feature Port
RS-485 Port Pinouts
RS-485 Pin/signal definition
Pin No.
Signal
Direction
Description
1
―
―
―
2
―
―
―