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A.4 RS-232/422/485 Serial Port (COM3~COM4)
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
A.5 Ethernet RJ-45 Connector (LAN1~LAN2)
Table
A.6: Table A-5: Ethernet
RJ-45 connector pin assignments
Pin 10/100Base-T Signal Name
1 XMT+
2 XMT-
3 RCV+
4 NC
5 NC
6 RCV-
7 NC
8 NC
27 Appendix A