Jetway Computer NF9F - Manual (Page 13)

8
Chapter 2
Hardware Installation
2-1 Jumper Setting
(1) JBAT (3-pin): Clear CMOS Function Setting
2-3 closed : Clear CMOS
JBAT JBAT
1 3
1-2 closed: Normal;
1 3
(2) JP3 (6-pin): COM6 Header RS232/485/422 Function Select
3-4 Closed : RS485;
JP3
1
1-2 Closed: RS232;
1 1
5-6 Closed : RS422