Dell Precision 330 - Manual (Page 20)

20 About Your Computer
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B a c k - Pa n e l C o n n e c t o r s a n d I n d i c a t o r s
NOTE: See " Back-Panel Indicators " for a description of indicator codes and
operations.
Connecting Devices
When you connect external devices to your computer's back panel, follow
these guidelines:
• Check the documentation that accompanied the device for specific
installation and configuration instructions.
For example, you must connect most devices to a particular
input/output (I/O) port or connector to operate properly. Also, external
devices like a printer usually require you to load device drivers before
they will work.
• When connecting a Universal Serial Bus (USB) mouse or keyboard,
ensure that you connect to one of the Port 1 USB connectors.
• Always attach external devices while your computer is turned off. Then
turn on the computer before turning on any external devices, unless
the documentation for the device specifies otherwise.
Port 2 USB connectors (2)
Port 1 USB connectors (2)
serial port 2 connector
serial port 1 connector
parallel port connector
line-in jack
line-out/speaker jack
microphone jack
PS/2 mouse connector
PS/2 keyboard connector
NIC connector
diagnostic indicators
video connector
network link
integrity indicator
network activity
indicator