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2.4.1 JP1: Clear CMOS
User must make sure the power supply to turn off the power supply before setting
Clear CMOS. Users remember to setting jumper back to Normal before turning on the
power supply. Default: 2 short 3.
Clear CMOS
1
2
3
JP3 : COM1 RS232 / RS422 / RS485 Function Selector
The jumper can be configured to operate COM1 in RS-232/422/485 mode. And the
setting must be cooperated with the 2.4.2 settings. Default 1 short 2.
RS232
RS422
1
2
1
3
4
3
5
6
5
2.4.2 JP4: RS232 / RS422 / RS485 Selector
The jumper can be configured to operate COM1 in RS-232/422/485 mode. And the
setting must be cooperated with JP3 settings.
RS232
1
3
1
4
6
4
7
9
7
10
12
10
2.4.3 CON9: LCD Panel Voltage Select
CON9 can be configured to operate in 3.3Volts / 5Volts / 12Volts mode.
3.3Volts
5Volts
1
2
1
3
4
3
5
6
5
IC70 Motherboard User Manual
Normal
1
2
3
RS485
2
1
2
4
3
4
6
5
6
RS422/485
3
6
9
12
12Volts
2
1
2
4
3
4
6
5
6
10
Pin No.
1 Short 2
Clear CMOS
2 Short 3
Pin No.
1 Short 2
3 Short 4
5 Short 6
RS232
RS422/485
1-2
4-5
7-8
10-11
Pin No.
Functions
1 Short 2
3.3Volts Selected
3 Short 4
5Volts Selected
5 Short 6
12Volts Selected
Functions
Normal
Functions
RS232
RS422
RS485
2-3
5-6
8-9
11-12
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