Dell Precision 330 - Manual (Page 22)

22 About Your Computer
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PS/2 Mouse Connector
Attach the Personal System/2 (PS/2) mouse cable to the 6-pin mouse
connector on the back panel. If your system uses Microsoft Windows, Dell
installed the necessary mouse drivers on your hard drive.
NOTE: This connector is similar to the keyboard connector. Ensure that you
correctly identify the mouse connector before you connect the device.
NOTE: Do not attempt to operate a PS/2 mouse and a USB mouse
simultaneously.
PS/2 Keyboard Connector
Attach the PS/2 keyboard cable to the 6-pin keyboard connector on the back
panel.
NOTE: This connector is similar to the mouse connector. Ensure that you
correctly identify the keyboard connector before you connect the device.
USB Connectors
Used to attach USB-compliant devices such as keyboards, mice, printers,
and computer speakers to your system.
NOTE: When connecting a USB mouse or keyboard, ensure that you connect
to one of the Port 1 USB connectors.
NOTE: Do not attempt to operate a PS/2 mouse and a USB mouse
simultaneously.
NOTICE: USB devices do not operate with Microsoft Windows NT.
NIC Connector
The network interface controller (NIC), which includes a Remote Wake Up
feature, has the following indicators:
• A yellow network activity indicator flashes when the system is
transmitting or receiving network data. (A high volume of network
traffic may make this indicator appear to be in a steady "on" state.)
• A dual-colored network link integrity and speed indicator, which is
green when a good connection exists between a 10-megabit per second
(Mbps) network and the NIC, or is orange when a good connection
exists between a 100-Mbps network and the NIC. When the orange or
green indicator is off, the computer is not detecting a physical
connection to the network.