Dell Precision T3400 (Late 2007) - Manual (Page 20)

20 Quick Reference Guide
4 network adapter
connector To attach your computer to a network or broadband device,
connect one end of a network cable to either a network jack
or your network or broadband device. Connect the other
end of the network cable to the network adapter connector
on your computer. A click indicates that the network cable
has been securely attached.
NOTICE: Do not plug a telephone cable into the network
connector.
On computers with an additional network connector card,
use the connectors on the card and on the back of the
computer when setting up multiple network connections
(such as a separate intra- and extranet).
It is recommended that you use Category 5 wiring and
connectors for your network. If you must use Category
3 wiring, force the network speed to 10 Mbps to ensure
reliable operation.
5 network activity
light The network activity light is on (flashing) when the
computer is transmitting or receiving network data. A high
volume of network traffic may make this light appear to be
in a steady on state.
6 line-out
connector Use the green line-out connector to attach headphones and
most speakers with integrated amplifiers.
On computers with a sound card, use the connector on the
card.
7 line-in connector Use the blue line-in connector to attach a record/playback
device such as a microphone, cassette player, CD player,
or VCR.
On computers with a sound card, use the connector on the
card.
8 Rear Dual USB
2.0 connectors
(2) Use the back USB connectors for devices that typically
remain connected, such as printers and keyboards.
NOTE: It is recommended that you use the front USB
connectors for devices that you connect occasionally, such as
flash memory keys or cameras, or for bootable USB devices.