Aaeon SBC-770 User Manual page 37

The SBC-770 COM2 serial port can be selected as RS-232, RS-422,
or RS-485 by setting J10 & J9.
J10
J9
*default
26 SBC-770 User Manual
RS-232*
12 10
9 7
6 4
3 1
6
5
4
3
2
1
RS-422
12 10
9 7
6 4
3 1
6
5
4
3
2
1
RS-485
12 10
9 7
6 4
3 1
6
5
4
3
2
1