Jetway Computer NMF93-Q77 User Manual
Page 10
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6
(4) JP4 (6-pin): COM3 Port Pin9 Function Select
3-4 closed : +12V;
JP4
1-2 closed: RS232;
1
5-6 closed : +5V
1
1
(5) JP12 (6-pin): COM3 Header RS232/485/422 Function Select
3-4 closed : RS485;
JP12
1-2 closed: RS232;
1
5-6 closed : RS422
1
1
(6) JP8 (6-pin): COM4 Port Pin9 Function Select
3-4 closed : +12V;
JP8
1-2 closed: RS232;
1
5-6 closed : +5V
1
1
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