AAEON AEC-6860 - Manual (Page 21)

E m b e d d e d C o n t r o l l e r A E C - 6 8 6 0
Chapter 2 Hardware Installation 2 - 4
2.3 COM2 RS-232/422/485 Serial Port Connector
Different devices implement the RS-232/422/485 standard in
different ways. If you are having problems with a serial device, be
sure to check the pin assignments below for the connector.
Pin Signal Pin Signal
1 DCD (422TXD-/485DATA-) 2 RXD (422RXD+)
3 TXD (422TXD+/485DATA+) 4 DTR (422RXD-)
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C.
2.4 COM1 RS-232 Serial Port Connector
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C.