COM1_SEL
COM2_SEL
EDP
VDD_JU1
1
3
RS232
1
3
RS232
1
3
EDP
1
2
3.3V
2
4
2
4
2
4
3
4
5V
3
5
RS485
3
5
RS485
3
5
LVDS
5
6
12V
4
6
4
6
4
6