3Com DK8X Computer Hardware User Manual


 
Chapter 2 Hardware Installation
REAR PANEL I/O PORTS
This is an illustration of the Mainboard rear I/O port array
PS/2 Mouse Connector (6-pin Female)
The system will direct IRQ12 to the PS/2 mouse if one is detected. If no mouse is
detected, IRQ12 will be free for expansion cards to use.
PS/2 Keyboard Connector (6-pin Female)
This connection is for standard keyboards using a PS/2 (mini DIN) plug. This connector
will not accept standard AT size (large DIN) keyboard plugs. You may need a DIN to
mini DIN adapter for standard AT keyboards.
Universal Serial Bus Ports (4-pin Female)
Two (2) onboard external USB 2.0 ports and two (2) onboard external USB 1.1 ports are
available for connecting USB devices. Refer to USB 2.0 Ports & Header for more
information.
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Hardware Installation 2-21