COMMELL MS-C72 - Manual (Page 13)

MS-C72 User’s Manual
Connector Reference 13
2.2 <Jumper Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JP1 COM1 signal mode switch (For Pin-1 & Pin-9)
JP2 COM2 signal mode switch (For Pin-1 & Pin-9)
JAT Power mode select
JCSEL1
JCSEL2 CN_COM2 RS-232 RS422 RS485 Setting
CN_IR IrDA Setting
Jumper: JAT
Type: Onboard 3-pin jumper
JAT Mode
1-2 AT Power mode
2-3 ATX Power mode
Default setting
JAT
3
1
JAT