Biostar G31D-M7

Motherboard Manual
16
JUSBV1: Power Source Header for USB Ports
Pin 1-2 Close:
+5V for USB ports at JUSB2/JRJ45USB1.
Pin 2-3 Close:
+5V STB for USB ports at JUSB2/JRJ45USB1.
1
3
Pin 1-2 close
1
3
1
3
Pin 2-3 close
JCOM2: Serial port Connector (Optional)
The motherboard has a Serial Port Connector for connecting RS-232 Port.
Pin
Assignment
1 Carrier detect
2 Received data
3 Transmitted data
4 Data terminal ready
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
10 Key
1
2
9
10