Dell Precision M90 - Manual (Page 7)

modem connector (RJ-11)
USB connectors
digital-video interface (DVI) connector
video connector
AC adapter connector — Attaches an AC adapter to the computer.
The AC adapter converts AC power to the DC power required by the computer. You can connect the AC adapter with your computer turned either on or off. For
optimum performance, use only the AC adapter that came with your computer.
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 solid light on the connector provides link status information. Off indicates no link, green
indicates a 10-Mb/sec link, orange indicates a 100-Mb/sec link, and yellow indicates a 1000-Mb/sec link. The blinking yellow light on the
connector indicates activity on the wired network connection.
For information on using the network adapter, see the network adapter documentation supplied with your computer under the
Windows Help and Support Center. To access the Help and Support Center, see
Windows Help and Support Center .
To use the internal modem, connect the telephone line to the modem connector.
For additional information on using the modem, see the modem documentation supplied with your computer under the Windows Help
and Support Center. To access the Help and Support Center, see
Windows Help and Support Center .
Connect USB devices, such as a mouse, keyboard, or printer.
Connects an external DVI-compatible monitor, such as a flat-panel monitor. With an adapter cable, you can also connect an external
VGA-compatible monitor to the DVI connector.
Connects an external VGA-compatible monitor.
CAUTION: The AC adapter works with electrical outlets worldwide. However, power connectors and power strips vary among countries. Using an
incompatible cable or improperly connecting the cable to the power strip or electrical outlet may cause fire or equipment damage.
NOTICE: When you disconnect the AC adapter cable from the computer, grasp the connector, not the cable itself, and pull firmly but gently to avoid
damaging the cable.