Aaeon ACP-1076, User Manual

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Chapter 2 – Hardware Information 15
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2.4.4 COM2 / COM3 Port (RS232/RS422/RS485)
RS-232
Pin Pin Name Pin Pin Name
1 DCD IN
2 RX IN
3 TX OUT ±5V
4 DTR OUT ±5V
5 GND GND
6 DSR IN
7 RTS OUT ±5V
8 CTS IN
9 RI/ +5V/ +12V IN/ PWR +5V/ +12V
RS-422
Pin Pin Name Pin Pin Name
1 RS422_TX- OUT ±5V
2 R OUT ±5V
3 R IN -
4 RS422_RX- IN -
5 GND GND -
6 NC -
7 NC -
1 5
6 9