User`s manual

FS-A74 User’s Manual
-
12-
2.2 <Jumper Location & Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JAT Power mode select
JP1 Com1 Voltage Setting (For Pin 9)
JP2 Com2 Voltage Setting (For Pin 9)
JP3 Com3 Voltage Setting (For Pin 9)
JP4 Com4 Voltage Setting (For Pin 9)
JCSEL1
JCSEL2
CN_COM2 RS-232 RS422 RS485 Setting
CN_IR IrDA Setting
JVUSB USB Voltage Setting
Jumper: JAT
Type: Onboard 3-pin jumper
JAT Mode
1-2 AT Power mode
2-3 ATX Power mode
Default setting
JRTC
JVUSB
JAT
JCSEL2 JP4 JP3 JCSEL1 JP2 JP1
JAT
1 3