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Chapter 3 Using Your Computer 39
Additional information on AirPort Extreme is available in AirPort Help. Choose Help >
Mac Help from the menu bar, then choose Library > AirPort Help from the menu bar.
You can also find information on the Apple AirPort website at www.apple.com/airport
or at www.apple.com/support.
Ethernet (10/100/1000Base-T)
Your computer comes with built-in 10/100/1000 megabit per second (Mbit/s) twisted-
pair Ethernet networking capability, which you can use to connect to a network,
including a Gigabit Ethernet network, or to a cable or DSL modem.
Connecting to a network gives you access to other computers. You may be able to
store and retrieve information; use network printers, modems, and email; or connect to
the Internet. You can also use Ethernet to share files between two computers or set up
a small network. The Ethernet port on your PowerBook automatically detects other
Ethernet devices. You don’t need an Ethernet crossover cable when connecting to
other Ethernet devices.
• Use 2-pair category 3 (or higher) Ethernet cables to connect to a 10Base-T Ethernet
network.
• Use 2-pair category 5 (or higher) Ethernet cables to connect to a 100Base-T Ethernet
network.
• Use 4-pair category 5 (or higher) Ethernet cables to connect to a 1000Base-T Ethernet
network.
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LL2507.book Page 39 Thursday, March 11, 2004 5:16 PM