Dell Precision M60 - Manual (Page 8)

network connector (RJ-45)
modem connector (RJ-11) (optional)
air vent — The computer uses an internal fan to create airflow through the vents, which prevents the computer from overheating.
parallel connector
video connector
serial connector
AC adapter connector — Attach an AC adapter to the computer.
NOTICE: The network connector is slightly larger than the modem connector. To avoid damaging the computer, do not plug a telephone line in to 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 online network-adapter documentation supplied with your computer. See
"
Finding Information ."
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 ."
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.