User manual

29 UNO-4673A/4683 Series User Manual
Appendix A System Settings & Pin Assignments
A.2 RS-232/422/485 Serial Ports (COM1~COM2)
A.3 USB Connectors
Table A.3: COM1~2 Port Pin Definitions
PIN RS-232
1 DCD
2RX
3TX
4DTR
5GND
6DSR
7RTS
8CTS
9RI
Table A.4: RS-232 Serial Ports COM1~2
Pin RS-232 RS-422 RS-485
1 DCD TX- DATA-
2RxDTX+ DATA+
3 TxD RX+
4DTRRX-
5 GND GND GND
6DSR
7RTS
8CTS
9RI
15
9
6
324
78
Table A.5: USB Connector Pin Assignments
Pin Signal Cable Color
1 VCC Red
2DATA- White
3DATA+ Green
4GND Black