Apple Macintosh LC 580 - Manual (Page 41)

Connecting to a network
If your computer has an optional Ethernet card, you can connect your
Macintosh to any standard high-speed Ethernet network. You can connect
your Macintosh to an existing Ethernet network that uses thin coaxial cables,
10BASE-T twisted pair cables, thick coaxial cables, or other standard cables.
You may need to purchase an appropriate Apple Ethernet media adapter or
other compatible media adapter to connect your Macintosh to a network.
(Consult the service and support information that came with your computer
for instructions on how to contact an Apple-authorized service provider or
Apple for more information on Apple Ethernet media adapters.)
To use Ethernet, you need to change the network connection in the Network
control panel. (For instructions on how to select a network connection and
other information about using your Macintosh on a network, see the
“Networks & Telecommunications” topic of Macintosh Guide, available in the
Guide [h] menu.)
IMPORTANT Your Macintosh supports EtherTalk Phase 2 (AppleTalk Phase 2
Protocols for Ethernet networks) and TCP/IP (via MacTCP software). Non-
Apple products that you can use to communicate over Ethernet using
protocols are also available. Your Macintosh does not support EtherTalk Phase
1 (AppleTalk Phase 1 protocols for Ethernet networks).
CAUTION The use of an Ethernet card will make your Macintosh a Class
A computing device, according to FCC regulations.
33 Expanding Your Computer and Using Special Features