Specifications

By communicating wirelessly with a base station, the AirPort Extreme Card can be used for Internet access,

email access, and file exchange. A base station provides the connection to the Internet or the bridge between

the wireless signals and a wired LAN or both. The AirPort Extreme Base Station has connectors for a wired LAN,

a DSL or cable modem, and a standard telephone line using the built-in 56 Kbps modem that is available on

some base stations.

When the AirPort Extreme option is included in the factory order, an external AirPort Extreme antenna is

provided in the accessory kit and must be installed on the AirPort Extreme antenna port on the rear of the

enclosure.

Complying with the IEEE 802.11g standard, AirPort Extreme transmits and receives data at rates up to 54 Mbps.

Airport Extreme is also compatible with other devices that comply with the IEEE 802.11b standard, including

PC's. For more information about Wi-Fi and compatibility, see the reference at Wireless Networks (page 68).

Note: As is the case with the existing IEEE 802.11b standard, actual data throughput will be lower

than the indicated maximum connection speeds.

Data Security

AirPort Extreme has several features designed to maintain the security of the user’s data:

●

In 802.11b mode, the system uses direct-sequence spread-spectrum (DSSS) technology that uses a multi-bit

spreading code that effectively scrambles the data for any receiver that lacks the corresponding code.

●

The system can use an Access Control List of authentic network client ID values (wireless and MAC addresses)

to verify each client’s identity before granting access to the network.

●

When communicating with a base station, AirPort Extreme uses 64-bit and 128-bit WEP encryption and

WPA personal and enterprise modes to encode data while it is in transit. Additional security features may

be available via software or firmware upgrades as 802.11 enhancements are ratified by IEEE.

●

The AirPort Extreme Base Station can be configured to use NAT (Network Address Translation), protecting

data from Internet hackers.

●

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 used in conjunction with the AirPort Extreme data security.

Input and Output Devices

AirPort Extreme Card