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2.3
Jumper Settings
Proper jumer settings configure the SBC81203 to meet your application
purpose.
2.3.1 COM2 Mode Select Jumpers: JP4, JP5, JP6
These jumpers select the COM2 port's communication mode to operate
RS-232 or RS-422/485.
Description Function
COM2
RS-232
(Default)
RS-422
RS-485
Jumpers and Connectors
SBC81203 LGA775 SBC User's Manual
Jumper Setting
JP4
JP5
1
2
1
2
3
4
3
4
5
6
5
6
7
8
JP4
JP5
1
2
1
2
3
3
4
4
5
5
6
6
7
8
JP4
JP5
1
2
1
2
3
3
4
4
5
5
6
6
7
8
JP6
1
2
3
4
5
6
JP6
1
2
3
4
5
6
JP6
1
2
3
4
5
6
7
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