Com2 Ring Signal Select (Jp1) - Aaeon SBC-657 User Manual

COM2 Ring signal select (JP1)

Ring *
1 2
3 4
5 6
*default
Clear CMOS (JP2)
JP2 is used when CMOS data needs to be reset. To reset ,
cap 2-3 closed for few seconds, then move the jumper back
to 1-2 closed.
Normal*
1
2
3
*default
RS-232/422/485 Setting (JP4)
RS-232*
1
4
7
10
*default
5V
1 2
3 4
5 6
Clear
1
2
3
RS-422/RS485
3 1
6 4
9 7
12 10
SBC-657 User's Manual
12V
1 2
3 4
5 6
3
6
9
12
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