COMMELL LS-573 - Manual (Page 14)

LS-573 User’s Manual
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2.2 <Jumper Location & Reference>
Jumper Function
JRTC CMOS Operating/Clear Setting
JVLCD Panel Voltage Setting
JAT Power mode select
JP1 COM1 signal mode switch (For Pin-1 & Pin-9)
JP2 COM2 signal mode switch (For Pin-1 & Pin-9)
JCSEL1
JCSEL2 CN_COM2 RS-232 RS422 RS485 Setting / CN_IR IrDA
Setting
JVLCD
JCSEL2
JRTC
JCSEL1
JP1/JP2
JAT