
P4ELA User’s Manual
14
2.3 <Jumper Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting (Page 18)
JP1 COM1 signal mode switch (For Pin-1 & Pin-9) (Page 32)
JP2 COM2 signal mode switch (For Pin-1 & Pin-9) (Page 32)
JAT Power mode select
JCSEL1
JCSEL2
CN_COM2 RS-232 RS422 RS485 Setting (Page 32)
CN_IR IrDA Setting (Page 32)
Jumper: JAT
Type: Onboard 3-pin jumper
JAT Mode
1-2 AT Power mode
2-3 ATX Power mode
Default setting
JAT
1
3
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