Jetway Computer NC9BU - Manual (Page 15)

10
(6) USB Power On Function Setting (3-pin): JP6
1-2 closed: USB Power On Disable
2-3 closed: USB Power On Enable
JP6
JP6
1
3
1
3
(7) COM1 Header RS232/485/422 Function Select (6-pin): JP7
3-4 closed : RS485
JP7
1
1-2 closed: RS232
1 1
5-6 closed : RS422
(8) COM1 Header Pin9 function Select (6-pin): JP8
3-4 closed : +12V
JP8
1
1-2 closed: RS232
1
1
5-6 closed : +5V