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
4
DTR
RX-
NC
5
GND
GND
GND
6
DSR
NC
NC
7
RTS
NC
NC
8
CTS
NC
NC
9
RI
NC
NC
Table A.6: Power connector pin assignments
Pin
1
V+ (9~36V
DC
)
2
V-
3
Field Ground