|
Figure 1
Client devices
equipped with Cisco Aironet 802.11a/b/g Wireless Cardbus
Adapters can roam freely throughout afacility via communications
with multiple IEEE 801.11a/b/g access points
Features
include:
• Superior
range and throughput
• Secure
network communications, with the Cisco Wireless Security Suite
and support for Wi-Fi Protected Access(WPA)
• Comprehensive
utilities for flexible, easy configuration and management
• World
mode for international roaming
Enterprise-Class Security Solution
Designed with
enterprise-class security requirements in mind, the Cisco
Aironet 802.11a/b/g Wireless Cardbus Adapter is a key
client-side component of the award-winning Cisco Wireless
Security Suite. Based on the 802.1X standard for port-based
network access, the Cisco Wireless Security Suite takes
advantage of the Extensible Authentication Protocol (EAP)
framework for user-based authentication (Figure 2). This
solution also supports WPA, the Wi-Fi Alliance specification for
interoperable, standards-based wireless LAN security.
The Cisco
Aironet 802.11a/b/g Wireless Cardbus Adapter supports the most
common 802.1X authentication types, including Cisco LEAP,
Extensible Authentication Protocol Transport Layer Security
(EAP-TLS), Protected Extensible Authentication Protocol
(PEAP-GTC), and Protected Extensible Authentication Protocol
Microsoft Challenge Handshake Authentication Protocol Version 2
(PEAP-MSCHAP V2). A wide selection of RADIUS servers, such as
the Cisco Secure Access Control Server (ACS) and Cisco Access
Registrar (AR) server, can be used for enterprise-class
centralized user management that includes:
• Strong,
mutual authentication to 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 theprivacy of transmitted
data
• Stronger
encryption keys provided by Temporal Key Integrity Protocol
(TKIP) enhancements such as message integrity check (MIC),
per-packet keys via initialization vector hashing, and broadcast
key rotation
• RADIUS
accounting records for all authentication attempts
• Ready
for Advanced Encryption Standard (AES) Support
Figure 2
The Cisco
Wireless Security Suite is an Enterprise-Class Security System
Based on the 802.1X Architecture
Cisco
Structured Wireless-Aware Network
The Cisco
Aironet 802.11a/b/g Wireless CardBus Adapter is a key component
of the Cisco Structured Wireless-Aware Network (SWAN) an
innovative, comprehensive Cisco solution for deploying,
operating and managing a few to hundreds to thousands of Cisco
Aironet access points using the Cisco infrastructure. Cisco SWAN
provides the wireless LAN with the same level of security,
scalability, and reliability that customers have come to expect
in their wired LAN by introducing "wireless-aware" capabilities
into the Cisco infrastructure. This solution is available on
IEEE 802.11a and IEEE 802.11b Cisco and Cisco Compatible clients
today and on IEEE 802.11g clients in 2004.
Wireless domain
services (WDS) is introduced with Cisco SWAN. WDS is a
collection of Cisco IOS Software features that expand WLAN
client mobility, simplify WLAN deployment and management and
enhance WLAN security. These services, supported on access
points and client devices today and on specific Cisco LAN
switches and routers in 2004, include radio management
aggregation, fast secure roaming and WAN link remote site
survivability. WDS radio management aggregation supports radio
frequency (RF) managed services such as rogue access point
detection, interference detection and assisted site surveys.
Fast secure
roaming is supported by Cisco and Cisco Compatible client
devices in conjunction with Cisco Aironet, Cisco IOS
Software-based access points. With fast secure roaming,
authenticated client devices can roam securely from one access
point to another without any perceptible delay during
reassociation. Fast secure roaming supports latency-sensitive
applications such as wireless voice over IP (VoIP), enterprise
resource planning (ERP), or Citrix-based solutions (Figure 3).
Figure 3
Fast Secure
Roaming
Enhanced
Client Network Management Features
A new and
improved set of client utilities includes the Aironet Desktop
Utility (ADU), Aironet System Tray Utility(ASTU), and Aironet
Client Administration Utility (ACAU). Together, these utilities
provide an intuitive graphical user interface (GUI) for easy
configuration, monitoring, and management of the Cisco Aironet
802.11a/b/g Cardbus Adapter. Enhanced client network management
features include:
• Profile
Manager—Allows users to create specific profile settings for
various environments, such as the office andhome, making it
simple for telecommuters and business travelers to move from one
environment to another (Figure 4)
• Customized
Profile settings—Lets users individually select channel, service
set identifier (SSID), Wired Equivalent Privacy (WEP) key, and
the authentication method for different locations
• Cisco
LEAP authentication status screen—Provides status updates
regarding the Cisco LEAP authenticationprocess
• Auto-selection
of profiles, including Cisco LEAP profile—Provides automatic
selection of established profiles, including Cisco LEAP profile,
without requiring storage of the Cisco LEAP username and
password in the profile
• System
tray icon—Provides easy access to wireless LAN connection
information and one-click access to common actions such the
manual selection a profile or turning the radio on or off
• Aironet
Client Monitor—Provides a subset of ADU features, such as status
information about the client adapter and access to basic tasks
such as selecting a profile. This application runs from the
system tray icon.
• Troubleshooting
Utility—Provides step-by-step details on the process of
connecting to an access point with highlights on why a
connection failed. (Figure 5)
• Support
for the most popular enterprise operating systems—Windows XP and
Windows 2000
Figure 4
Cisco Aironet
Desktop Utility (Profile Management) Screen
An Aironet
Client Adapter installation wizard for Windows (CB21AG and
PI21AG) is provided for easy installation of the client
firmware, drivers, and utilities. The wizard offers several
installation offers: install client Utilities and driver;
install driver only; or make driver installation diskette(s).
For ease of use, the installation wizard image file is a
self-extracting (.exe) file.
Figure 5
Troubleshooting
Utility Screen

Table 1 Product Features and Benefits
|
Feature
|
Benefit
|
|
Cisco Wireless
Security Suite |
IEEE 802.1X support, including Cisco LEAP, PEAP-GTC,
PEAP-MSCHAP V2, and EAP-TLS for mutual
authentication with dynamic per-user, per-session
encryption keys viaTKIP enhancements. Full support
for WPA. Ready for Advanced Encryption Standard
(AES) Support. |
|
Enhanced Client
Network Management Features |
Bundled with comprehensive, easy-to-use client
network management utilities to provide a secure,
intuitive, and convenient way to manage and
configure the adapter. |
|
Cisco LEAP Single
Sign-On |
Convenient option to utilize log-in credentials for
LEAP sign-on on the user's network, thus eliminating
the need to enter a second set of credentials.
|
|
Cisco SWAN
|
A
comprehensive Cisco solution for deploying,
operating and managing a few to hundreds to
thousands of Cisco Aironet access points using the
Cisco infrastructure. This solution extends to the
wireless LAN the same level of security,
scalability, and reliability that customers have
come to expect in their wired LAN by introducing
"wireless-aware" capabilities into the Cisco
infrastructure. |
|
Wireless Domain
Services (WDS) |
A
component of Cisco SWAN, WDS is a collection of
Cisco IOS Software features that enhance WLAN client
mobility and simplify WLAN deployment and
management. WDS includes radio management
aggregation, fast secure roaming, and WAN link
remote site survivability. |
|
Fast Secure Roaming
|
Allows authenticated client devices to roam securely
from one access point to another without any
perceptible delay during reassociation. Provides
support forlatency-sensitive applications such as
VoIP, ERP and Citrix. |
Table 2 Product Specifications
|
Part Number
|
|
• AIR-CB21AG-A-K9
• AIR-CB21AG-E-K9
• AIR-CB21AG-J-K9
• AIR-CB21AG-W-K9
• AIR-CB21AG-A-K9-40
(40-unit bulk pack)
Regulatory Domains:
• A=Americas
• E=ETSI
• J=TELEC
(Japan)
• W=Rest-of-world
Customers are responsible for verifying approval for
use in their country. Please see
http://www.cisco.com/go/aironet/compliance to verify approval and to identify the regulatory
domain that corresponds to a particular country.
|
|
Form Factor
|
|
CardBus Type II |
|
Interface
|
|
• 32-bit
Cardbus with standard 68-pin connector
• PC-Card
Rev. 7.0 compliant |
|
Data Rates Supported
|
|
1,
2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps
|
|
Network Standard
|
|
IEEE 802.11a/b/g |
|
Operating Voltage
|
|
3.3
V (±0.3 V) |
|
LED |
|
Status (green) and Activity (amber) |
|
Media Access
Protocol |
|
Carrier-Sense Multiple Access w/ Collision Avoidance
(CSMA/CA) |
|
Wireless Medium
|
|
802.11g:
• Direct
Sequence Spread Spectrum (DSSS) and Orthogonal
Frequency Divisional Multiplexing (OFDM)
802.11a:
• OFDM
|
|
Modulation
|
|
802.11b:
DSSS
• Differential
Binary Phase Shift Keying (DBPSK) @ 1 Mbps
• Differential
Quadrature Phase Shift Keying (DQPSK) @ 2 Mbps
• Complementary
Code Keying (CCK) @ 5.5 and 11 Mbps
802.11g and 802.11a:
OFDM
• BPSK
@ 6 and 9 Mbps
• QPSK
@ 12 and 18 Mbps
• 16-Quadrature
Amplitude Modulation (QAM) @ 24 and 36 Mbps
• 64-QAM
@ 48 and 54 Mbps |
|
Frequency Bands
|
|
• 2.40
to 2.4897 GHz
• 5.15
to 5.35 GHz (FCC UNII 1 and UNII 2)
• 5.725
to 5.85 GHz (FCC UNII 3)
• 5.15
to 5.35 GHz (ETSI)
• 5.470
to 5.725 (ETSI)
• 5.15
to 5.25 GHz (Japan) |
|
Delay Spread
|
|
• 350
ns @ 1 Mbps
• 300
ns @ 2 Mbps
• 200
ns @ 5.5 Mbps
• 400
ns @ 6 Mbps
• 250
ns @ 9 Mbps
• 130
ns @ 11 Mbps
• 250
ns @ 12 Mbps
• 220
ns @ 18 Mbps
• 160
ns @ 24 Mbps
• 100
ns @ 36 Mbps
• 90
ns @ 48 Mbps
• 70
ns @ 54 Mbps |
|
Receive Sensitivity
(typical)
|
|
802.11g:
• -94
dBm @ 1 Mbps
• -93
dBm @ 2 Mbps
• -92
dBm @ 5.5 Mbps
• -86
dBm @ 6 Mbps
• -86
dBm @ 9 Mbps
• -90
dBm @ 11 Mbps
• -86
dBm @ 12 Mbps
• -86
dBm @ 18 Mbps
• -84
dBm @ 24 Mbps
• -80
dBm @ 36 Mbps
• -75
dBm @ 48 Mbps
• -71
dBm @ 54 Mbps |
|
802.11a:
5150 to 5250 MHz
• -87
dBm @ 6 Mbps
• -87
dBm @ 9 Mbps
• -87
dBm @ 12 Mbps
• -87
dBm @ 18 Mbps
• -82
dBm @ 24 Mbps
• -79
dBm @ 36 Mbps
• -74
dBm @ 48 Mbps
• -72
dBm @ 54 Mbps |
5250 to 5350 MHz
• -89
dBm @ 6 Mbps
• -89
dBm @ 9 Mbps
• -89
dBm @ 12 Mbps
• -85
dBm @ 18 Mbps
• -82
dBm @ 24 Mbps
• -79
dBm @ 36 Mbps
• -74
dBm @ 48 Mbps
• -72
dBm @ 54 Mbps |
5725 to 5805 MHz
• -84
dBm @ 6 Mbps
• -84
dBm @ 9 Mbps
• -84
dBm @ 12 Mbps
• -83
dBm @ 18 Mbps
• -82
dBm @ 24 Mbps
• -79
dBm @ 36 Mbps
• -72
dBm @ 48 Mbps
• -65
dBm @ 54 Mbps |
5.470 -5.725 GHz
• -87
dBm @ 6 Mbps
• -87
dBm @ 9 Mbps
• -87
dBm @ 12 Mbps
• -87
dBm @ 18 Mbps
• -82
dBm @ 24 Mbps
• -79
dBm @ 36 Mbps
• -74
dBm @ 48 Mbps
• -72
dBm @ 54 Mbps |
|
Available Transmit
Power Settings
|
|
802.11b/g:
• 20
dBm (100 mW) @ 1, 2, 5.5 and 11 Mbps
• 18
dBm (63 mW) @ 1, 2, 5.5, 6, 9, 11, 12, 18 and 24
Mbps
• 17
dBm (50 mW) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24 and 36
Mbps
• 15
dBm (30 mW) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36
and 48 Mbps
• 13
dBm (20 mW) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36,
48 and 54 Mbps
• 10
dBm (10 mW) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36,
48 and 54 Mbps
802.11a:
• 16
dBm (40 mW) @ 6, 9, 12, 18 and 24 Mbps
• 14
dBm (25 mW) @ 6, 9, 12, 18, 24 and 36 Mbps
• 13
dBm (20 mW) @ 6, 9, 12, 18, 24, 36, 48 and 54 Mbps
• 11
dBm (13 mW) @ 6, 9, 12, 18, 24, 36, 48 and 54 Mbps
• 10
dBm (10 mW) @ 6, 9, 12, 18, 24, 36, 48 and 54 Mbps
Maximum power setting will vary according to
individual country regulations. |
|
Power Consumption
Steady State
|
|
802.11a
802.11b
802.11g |
Transmit
554
mA maximum
539
mA maximum
530
mA maximum |
Receive
318
mA maximum
327
mA maximum
282
mA maximum |
Standby
203
mA average
203
mA average
203
mA average |
|
|
Range (typical with
CB21AG at maximum transmit power communicating
with a AP1231AG configured with 2.2 dBi dipole
antenna for 802.11g and 802.11b and 6 dBi gain
patch for 802.11a)
|
| |
802.11a |
802.11b/g |
|
|
| |
Indoor (typical) |
|
|
|
54
Mbps
18
Mbps
11
Mbps
6
Mbps
1
Mbps |
45
ft (13 m)
110
ft (33 m)
-
165
ft (50 m)
-
|
90
ft (27 m)
180
ft (54m)
160
ft (48 m)
300
ft (91 m)
410
ft (124 m) |
|
|
| |
Outdoor (typical) |
|
|
|
54
Mbps
18
Mbps
11
Mbps
6
Mbps
1
Mbps |
100
ft (30 m)
600
ft (183 m)
-
1000 ft (304 m)
-
|
250
ft (76 m)
600
ft (183 m)
1000 ft (304 m)
1300 ft (396 m)
2000 ft (610 m) |
|
|
|
Compliance
|
|
Safety:
• UL
60950
• CSA
22.2 No. 60950
• IEC
60950
• EN
60950 |
Radio Approvals:
• FCC
Part 15.401-15.407
• RSS-210
(Canada)
• EN
301.893 (Europe)
• ARIB
STD-T71 (Japan)
• AS
4268.2 (Australia)
• FCC
Part 15.247
• RSS-210
(Canada)
• EN
300.328 (Europe)
• Telec
33 and 66 (Japan)
• AS/NZS
3548 (Australia and New Zealand) |
EMI and Susceptibility
(class="text" B):
FCC
Part 15.107 and 15.109
ICES-003 (Canada)
VCCI (Japan)
EN
301.489-1 and -17 (Europe) |
Other:
• IEEE
802.11a, 802.11b and 802.11g
• Cisco
Compatible Wireless (based on CCX v1.0 and CCX v2.0)
• Wi-Fi
• WHQL
• FCC
Bulletin OET-65C
• RSS-102
|
|
Power Management
|
|
Power management
levels available:
• CAM
(Constantly Awake Mode)
• Fast
PSP (Power Save Mode)
• Max
PSP (Maximum Power Savings) |
|
Antenna
|
|
Integrated diversity dual-band 2.4/5 GHz antenna
|
|
Security
Architecture Client Authentication
|
|
Cisco Wireless Security Suite including:
Authentication:
• WPA
and 802.1X support for Cisco LEAP, PEAP-GTC,
PEAP-MSCHAPv2, and EAP-TLS
• MAC
address and by standard 802.11 authentication
mechanisms
Encryption:
• Support
for static and dynamic IEEE 802.11 WEP keys of 40
bits and 128 bits
• Cisco
TKIP and WPA TKIP encryption enhancements: key
hashing (per-packet keying), message integrity check
(MIC) and broadcast key rotation |
|
Drivers
|
|
Windows XP and Windows 2000 |
|
Dimensions
|
|
2.05 in. (52.08mm) wide x 4.46 in. (113.35mm) deep x
0.19 in. (4.80mm) high |
|
Weight
|
|
1.6
oz (44.0g) |
|
Environmental
|
|
Non-operating
(Storage) Temperature:
• 0°C
to +85°C
Operating
Temperature:
• 0°C
to +70°C
Humidity
(non-condensing):
• 10-90%
|
|
Warranty
|
|
One
Year |
|
Wi-Fi Certification
|
|
|
|