COMMELL HS-773 - Manual (Page 13)

HS-773 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 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
JVLCD JRTC
JAT
JP1
JP2
JVUSB
JP4
JP3
JCSEL1
JCSEL2