18
COM2 RS232/485/422 Setting
Function
JP5
JP4
▲RS232
1 3 5 7 9
2
6 8 10
4
5 7 9 11
2
1 3
6 8 10 12
4
RS485
8 10
5 7 9
2
1 3
6
4
11
12
8 10
5 7 9
2
1 3
6
4
RS422
8 10
5 7 9
2
1 3
6
4
10
5 7 9 11
2
1 3
6 8
12
4
COM3 & COM4 Power Setting
COM3 and COM4 can be set to provide power to your serial device.
The voltage can be set to +5V or 12V by setting jumper JP18 on the motherboard.
When enabled, the power is available on pin 10 of the RJ45 serial connector..
If you use the serial RJ45 to DB9 adapter cable, the power is on pin 9 of the DB9 con-
nector.
By default, the power option is disabled in the BIOS.
6-1-3.
Jumper & BIOS/Utility Setting
BIOS/Utility setup
1. Press <DEL> key to enter BIOS
SETUP UTILITY when system boot
up.
2. Find tab "Advanced".
3. Select "Power Configuration COM/
VGA Ports" and press <Enter> to
go to sub screen.