Dell LATITUDE C510 - Manual (Page 13)

Use this connector to connect the computer to a network. The green and yellow
lights next to the connector indicate activity for both wired and wireless network
communications.
For information on using the network adapter, see the online network adapter
documentation supplied with your computer. See "
Finding Information ."
S-video TV-out Connector
Connects your computer to a TV. For more information, see " Playing CDs and Movies ."
Air Vent
The computer uses an internal fan to create airflow through the vents, which prevents the computer from
overheating.
NOTE: The computer turns on the fans only when the computer gets hot. The fans may make a noise,
which is normal and does not indicate a problem with the fans or the computer.
CAUTION: Do not block, push objects into, or allow dust to accumulate in the air vents.
Doing so can damage the computer or cause a fire.
Audio Connectors