Cisco AIR-CB21AG-E-K9 Datasheet
Cisco AIR-CB21AG-E-K9 Datasheet

Cisco AIR-CB21AG-E-K9 Datasheet

802.11a/b/g wireless cardbus adapter

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All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Cisco Aironet 802.11A/B/G Wireless CardBus Adapter
®
®
The Cisco
Aironet
802.11a/b/g Wireless CardBus Adapter provides high-performance
54-Mbps connectivity in the 2.4- and 5-GHz bands.
Whether configured to support single 802.11b coverage, single 802.11g coverage, single 802.11a
coverage, dual-mode 802.11a/g coverage, or trimode 802.11a/b/g coverage, the Cisco Aironet
802.11a/b/g Wireless CardBus Adapter is Wi-Fi-compliant and combines the freedom of wireless
connectivity with 802.11i/Wi-Fi Protected Access 2 (WPA2) encryption for the performance,
security, and manageability that businesses require (Figure 1).
Figure 1.
The Cisco Aironet 802.11a/b/g Wireless CardBus Adapter
Enterprise-Class Security Solution
Designed with enterprise-class security requirements in mind, the Cisco Aironet 802.11a/b/g
Wireless CardBus Adapter uses the 802.1X standard for port-based network access. A full array
of Extensible Authentication Protocol (EAP) types for user-based authentication, together with
enterprise-caliber Advanced Encryption Standard (AES) encryption, provide full 802.11i support.
The adapter supports WPA2, the Wi-Fi Alliance certification for interoperable, standards-based
wireless LAN security.
Support for Management Frame Protection (MFP) is now available on the Cisco Aironet
802.11a/b/g Wireless CardBus Adapter. MFP adds security to the MAC management layer
of 802.11 connectivity by cryptographically hashing the management frames and generating
a Message Integrity Check (MIC) during network connection.
The Cisco Aironet 802.11a/b/g Wireless CardBus Adapter supports the most common 802.1X
authentication types, including EAP-Flexible Authentication via Secure Tunneling (EAP-FAST),
Cisco LEAP, EAP-Transport Layer Security (EAP-TLS), Protected Extensible Authentication
Protocol-Generic Token Card (PEAP-GTC), and PEAP-Microsoft Challenge Handshake
Authentication Protocol version 2 (PEAP-MSCHAPv2). A wide selection of RADIUS servers,
such as the Cisco Secure Access Control Server (ACS) and Cisco Access Registrar server,
can be used for enterprise-class centralized user management that includes:
Strong, mutual authentication to help ensure that only legitimate clients associate
with legitimate and authorized network RADIUS servers via authorized access points
Dynamic per-user, per-session encryption keys that automatically change on a configurable
basis to protect the privacy of transmitted data
Data Sheet
Page 1 of 7

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Summary of Contents for Cisco AIR-CB21AG-E-K9

  • Page 1 Dynamic per-user, per-session encryption keys that automatically change on a configurable ● basis to protect the privacy of transmitted data All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 1 of 7...
  • Page 2 For ease of use, the installation wizard image file is a self-extracting (.exe) file. All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 7...
  • Page 3: Features And Benefits

    ● QPSK @ 12 and 18 Mbps ● 16-Quadrature Amplitude Modulation (QAM) @ 24 and 36 Mbps ● 64-QAM @ 48 and 54 Mbps All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 7...
  • Page 4 ● –79 dBm @ 36 Mbps ● –74 dBm @ 48 Mbps ● –72 dBm @ 54 Mbps All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 4 of 7...
  • Page 5 802.11a.) ● UL 60950 Safety ● CSA 22.2 No. 60950 ● IEC 60950 ● EN 60950 All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 5 of 7...
  • Page 6: System Requirements

    ● 0 to 70° C Humidity (noncondensing): ● 10 to 90 percent Warranty One year Wi-Fi Certification System Requirements All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 6 of 7...
  • Page 7: Ordering Information

    Table 4 lists ordering information for the Cisco Aironet 802.11a/b/g Wireless CardBus Adapter. To place an order, visit the Cisco Ordering Website http://www.cisco.com/en/US/ordering/index.shtml. All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 7 of 7...
  • Page 8: Service And Support

    For more information about the Cisco Aironet 802.11a/b/g Wireless CardBus Adapter, visit http://www.cisco.com/go/wireless or contact your local account representative. Printed in USA C78-404876-01 10/07 All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 7...

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