COMMELL LV-679 - Manual (Page 14)

LV-679 User’s Manual
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2.2 <Jumper Location & Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JCFSEL CF with IDE mode selection
JVLCD Panel Voltage Setting
JVSSD DOM 3.3V / 5V Power selection
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
JCFSEL
JVLCD
JAT
JCSEL1
JP1
JP2
JVSSD
JCSEL2
JRTC