Hardware Installation- 21 -
1-6 Back Panel Connectors
PS/2 Keyboard and PS/2 Mouse Port
Use the upper port (green) to connect a PS/2 mouse and the lower port (purple) to connect a PS/2
keyboard.
Parallel Port
Use the parallel port to connect devices such as a printer, scanner and etc. The parallel port is also
called a printer port.
Serial Port
Use the serial port to connect devices such as a mouse, modem or other peripherals.
D-Sub Port
The D-Sub port supports a 15-pin D-Sub connector. Connect a monitor that supports D-Sub
connection to this port.
USB Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices such as an
USB keyboard/mouse, USB printer, USB flash drive and etc.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
• When removing the cable connected to a back panel connector, first remove the cable
from your device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side
to prevent an electrical short inside the cable connector.
Activity LED
Connection/
Speed LED
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
Connection/Speed LED:
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
LAN Port
Only for GA-G31M-S2L.