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