12
(9) JP4 (4-pin): COM2 Header Pin9 Function Select
JP4
→
COM2 Header
4-6 Closed:
RI= 12V.
6
4
2
3-4 Closed:
RI= 5V;
2-4 Closed:
RI=RS232;
3
1
5
1 3 5
2 4 6
1 3 5
2 4 6
(10) JP3 (4-pin): COM3 Header Pin9 Function Select
JP3
→
COM3 Header
4-6 Closed:
RI= 12V.
6
4
2
3-4 Closed:
RI= 5V;
2-4 Closed:
RI=RS232;
3
1
5
1 3 5
2 4 6
1 3 5
2 4 6
