Dell Latitude D600 - Manual (Page 7)

S-video TV-out connector
modem connector (RJ-11) (optional)
network connector (RJ-45)
parallel connector
video connector
serial connector
Connects your computer to a TV. For more information, see "Connecting a Television to the Computer."
If you ordered the optional internal modem, connect the telephone line to the modem connector.
For information on using the modem, see the online modem documentation supplied with your computer. See " Finding Information ."
NOTICE: The network connector is slightly larger than the modem connector. To avoid damaging the computer, do not plug a telephone line into
the network connector.
Connects 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 device user's guide supplied with your computer. See " Finding Information ."
Connects a parallel device, such as a printer.
Connects an external monitor. For more information, see " Using the Display ."
Connects serial devices, such as a mouse or handheld device.