Mainboard KM51G-754
8
Serial and Parallel Interface Ports
The mainboard provides one serial port, one parallel port, and
one VGA port on the back panel.
P
S
S
arallel Interface Port: JPRINT1
The parallel port on your system is used to attach a parallel
printer or other devices with this interface supported.
erial Interface Port: JCOM1
This mainboard provides a serial port COM1 on the back panel,
and is used to attach mice, modems and other peripheral devices.
erial Interface Port: JVGA1
This is a D-Sub 15-pin port and is used to attach your monitor cable for display.
USB & LAN Ports: JUSB1, JUSB/LAN1
There are four USB 2.0/ 1.1 ports on the back panel. These USB ports are used to attach with
USB devices, such as keyboard, mice and other USB supported devices. There is also a 10/100
Mbps Ethernet LAN port available for you to attach an Internet cable.
Pin
Assignment
Pin
Assignment
1
Data
4
+5 V (fused)
2
N/A
5
Clock
3
Ground
6
N/A
Pin
Assignment
Pin
Assignment
1
TX+ (TX+)
5
NC (TRD2-)
2
TX- (TX-)
6
RX- (RX-)
3
RX+ (RX+)
7
NC (TRD3+)
4
NC (TRD2+)
8
NC (TRD3-)
Pin
Assignment
Pin
Assignment
1/5
+5 V (fused)
3/7
USBP0+/P1+
2/6
USBP0-/P1-
4/8
Ground
PS/2 Mouse
PS/2 Keyboard
