Asus AAEON ACP-1074 User Manual page 41

Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 NA
Chapter 2 – Hardware Information
RS-422
TX-
TX+
RX+
RX-
RS-485
DATA-
DATA+
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