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2.1.4 LVDS Panel Voltage Select (JVLCD1)
Type: Onboard 3-pin header (JVLCD1)
JVLCD1
1-2(default setting)
2-3
LCD Voltage
5.0V
3.3V
JVLCD1
2.1 Jumpers Quick Reference
Jumpers
COM2
Installation Installation
- 10 - - 11 -
Label
JBAT1
JCF1
JRS1
JVLCD1
Function
Clear CMOS
CF master or slave selected
RS-232 / 422 / 485 Selection
LCD Voltage Selected
Pin Defined
Pin1
Pin2
Pin8
Pin9
RS232
DCD
RXD
CTS
RI
2.1.1 CMOS Jumper Settings
Type: Onboard 3-pin header (JBAT1)
CMOS Setup (JBAT1)
Keep CMOS (default setting)
Clear CMOS
JBAT1
1-2 ON
2-3 ON
2.1.2 CF Card Master&Slave Select
Type: Onboard 3-pin header (JCF1)
JCF1
1-2 (default setting)
2-3
Master
Slave
2.1.3 Serial Port Select
RS-232C/422/485 Mode select (JRS1)
RS-232C/422/485 Mode on COM2
The onboard COM2 port can be configured to operate in RS-422 or RS-485
modes. RS-422 modes differ in the way RX/TX is being handled. Jumper
JRS1 switches between RS-232 or RS-422/485 mode. When JRS1 is set to
RS-422 or 485 mode, there will be only +12V output left while JRS1 is set. All
of the RS232/422/485 modes are available on COM2.
RS422
Tx+
Tx-
Rx+
Rx-
RS485
RTx+
RTx-
x
x
JRS1 Selection
RS232 (default setting)
RS422
RS485
1-2
Close
Open
Open
3-4
Open
Close
Open
5-6
Open
Open
Close
COM2
JRS1
JCF1
JBAT1