Dell Latitude C540 - Manual (Page 11)

1 modem connector 5 audio connectors
2 network connector 6 infrared sensor
3 S-video TV-out connector 7 speaker
4 air vents
Modem Connector
If you ordered the optional internal modem, connect the telephone line to the modem
connector. (If no modem is included, the connector opening is filled by a plug.)
For information on using the modem, see the online modem documentation supplied with
your computer. See "
Finding Information ."
Network Connector
NOTE: The network connector is slightly larger than the modem connector. Do not plug a telephone
line into the network connector.