CHAPTER 3
Devices and Ports
●fax modem bit rates up to 14.4 Kbps
The modem is connected to an internal USB port and is a
Note: 56 Kbps technology refers to download speeds only and requires compatible modems at server sites. Other conditions may limit modem speed. FCC limitations allow a maximum of 53 Kbps during download transmissions.
AirPort Extreme
The PowerBook G4
AirPort Extreme transmits and receives data at speeds up to 54 Mbps, comparable to wired networking speeds. Airport Extreme is also compatible with other devices that follow the IEEE 802.11b standard, including PC's. For more information about compatibility, see the reference at “Wireless Networks” (page 63).
Note: As is the case with the existing IEEE 802.11b standard, actual data throughput speeds will be lower than the indicated maximum connection speeds. Inherent in wireless LAN systems, bandwidth overhead is required for wireless routing, scrambling, security error correction, and other processes.
Data Security
AirPort Extreme has several features designed to maintain the security of the user’s data.
●In 802.11b mode, the system uses
●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
●The AirPort Extreme Base Station can be configured to use NAT (Network Address Translation), protecting data from Internet hackers.
AirPort Extreme | 31 |
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