DELL DCDO Manuale Utente

Pagina di 252
22
Quick Reference Guide
6
link integrity light
Green — A good connection exists between a 10-Mbps 
network and the computer.
Orange — A good connection exists between a 100-Mbps 
network and the computer.
Yellow — A good connection exists between a 1000-Mbps 
(or 1-Gbps) network and the computer.
Off — The computer is not detecting a physical connection 
to the network.
7
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.
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.
8
network 
activity light
Flashes a yellow light 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.
9
USB 2.0 
connectors (5)
It is recommended that you use the front USB connectors for 
devices that you connect occasionally, such as flash memory 
keys, cameras, or bootable USB devices.
Use the back USB connectors for devices that typically remain 
connected, such as printers and keyboards.
10
keyboard 
connector
If you have a standard PS/2 keyboard, plug it into the purple 
keyboard connector. If you have a USB keyboard, plug it into 
a USB connector.
11
serial 
connectors (2)
Connect a serial device, such as a handheld device, to the 
serial port. If necessary, the address for this port can be 
modified through the system setup program (see "System 
Setup" in you User’s Guide).