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● The AirPort Extreme Base Station can authenticate users by their unique Ethernet IDs, preventing
unauthorized computers from logging into your network. Network administrators can take advantage
of RADIUS compatibility, used for authenticating users over a remote server. Smaller networks can offer
the same security using a local look-up table located within the base station.
As an additional data security measure, VPN can be usedin conjunction with the AirPort Extreme data security.
AirPort Extreme Hardware
AirPort Extreme is a fully-integrated, wireless LAN module based on the IEEE draft specification of the 802.11g
standard using both OFDM (orthogonal frequency-division multiplexing) and DSSS technologies. Using DSSS,
AirPort Extreme is interoperable with PC-compatible wireless LANs that conform to the 802.11b standard at
speeds of 11 Mbps, 5.5 Mbps, 2 Mbps, and 1 Mbps. Using OFDM, AirPort Extreme is compatible with all
802.11g draft standard speeds.
Two antennas are built into the computer, on either side of the flat-panel display. One antenna is always
used for transmitting. Either of the two antennas may be used for receiving. Using a diversity technique,
AirPortExtreme may select the antenna that gives the best reception. The secondary antenna is used for
Bluetooth.
AirPort Extreme Software
The PowerBook G4 17-inch computer includes software for setting up and using AirPort Extreme:
● AirPort Extreme Setup Assistant, an easy-to-use program that guides users through the steps necessary
to set up AirPort Extreme or set up an AirPort Extreme Base Station.
● Users can switch between wireless networks and can create and join peer-to-peer networks. These
functions are accessed via the AirPort Extreme status menu.
● AirPort Extreme Admin Utility, a utility for advanced users and system administrators. With it the user
can edit the administrative and advanced settings needed for some advanced configurations.
Bluetooth Technology
Bluetooth is a fully integrated, open specification that enables short-range wireless connections between
desktop and laptop computers and a host of other peripheral devices. Bluetooth support is built into Mac
OS X and compliant with Bluetooth specification v1.1. It operates on a globally available 2.4 GHz frequency
band (ISM band) for worldwide compatibility and has a maximum throughput of 1Mbps.
The Bluetooth technology supports the following profiles:
● synchronization —enables synchronization of devices over Bluetooth
● serial —provides a wireless serial connection to other Bluetooth devices
● dial-up networking (DUN) — enables a mobile phone to act as a modem
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Bluetooth Technology
Legacy Document | 2003-03-01 | © 2003 Apple Computer, Inc. All Rights Reserved.
CHAPTER 3
Devices and Ports