33 Appendix A
A.5 RS-232/422/485 Serial Port (COM A ~ COM B)
A.6 Power Connector (PWR)
Table A.5: RS-232/422/485 Serial Port Pin Assignments
Pin RS-232 RS-422 RS-485
1 DCD TX- Data-
2 RxD TX+ Data+
3 TxD RX+ NC
4DTR RX-NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9RI NCNC
Table A.6: Power connector pin assignments
Pin
1V+ (9~36V
DC
)
2V-
3 Field Ground
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