Advantech AIMB-784 - B.7 RS-232 and COM 3 Interface Pin Assignments

91 AIMB-784 User Manual
Appendix B I/O Pin Assignments
B.7 RS-232 and COM 3 Interface
Table B.6: RS-232 Interface (Rear)
Pin Signal
1 DCD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
Table B.7: RS-232 Interface (onboard)
Pin Signal
1 DCD
2DSR
3RXD
4RTS
5TXD
6CTS
7DTR
8RI
9GND
Table B.8: COM3 Interface (onboard)
Pin Signal
1 422/485 TX-
2DSR
3 422/485 TX+
4RTS
5RX+
6CTS
7RX-
8RI
9GND