Winmate I771, User Manual

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I771 Motherboard User Manual
10
2.4.1 JP6: 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.
JP4 : 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.
2.4.2 JP5: 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 JP4 settings.
2.4.3 JP1: COM Configure
JP1 can be configured to provide RI/+5V/+12V on COM1/COM4.
Pin No. Functions
1 Short 2 Clear CMOS
2 Short 3 Normal
Pin No. Functions
1 Short 2 RS232
3 Short 4 RS422
5 Short 6 RS485
RS232 RS422/485
1-2 2-3
4-5 5-6
7-8 8-9
10-11 11-12
1
2
3
Clear CMOS
1
2
3
Normal
RS232
1
3
5
2
4
6
RS422
1
3
5
2
4
6
RS485
1
3
5
2
4
6
RS232
1
4
7
10
3
6
9
12
RS422/485
1
4
7
10
3
6
9
12
1
2
11
12