Cisco Aironet 340 Series Products
`
`QUICK REFERENCE GUIDE
`
`The Cisco Aironet 340 series of wireless LAN (WLAN)
`products provide a standards-based, field proven, high-speed
`wireless networking solution for both in-building and
`building-to-building WLAN applications. The Cisco Aironet
`340 series products are easy to manage and deliver a complete
`solution to customers who require the mobility, flexibility, and
`freedom of a WLAN to complement or replace a wired LAN.
`The Cisco Aironet 340 Series utilizes direct sequence spread
`spectrum (DSSS) radio frequency technology.
`
`• PC Card, PCI or ISA wireless adapters contain a radio
`transmitter/receiver that allows the PC to send and receive
`messages wirelessly.
`• The access point functions similarly to a hub in a wired
`network, but adds wireless benefits like truly mobile
`computing through roaming.
`• Wireless bridges can transmit a signal up to 25 miles,
`line of sight, allowing users to extend their LAN
`between buildings.
`
`For more information on Cisco Aironet products access:
`
`On CCO:
`http://www.cisco.com/warp/public/cc/pd/witc/ao340ap/
`
`For helpful information on wireless networking in general access:
`The Wireless Ethernet Compatibility Association web site at:
`http://www.wi-fi.org
`
`The Wireless LAN Association at: http://www.wlana.org
`
`Frequently Asked Questions
`
`Q. How fast is the 340 Series?
`A. The 340 Series supports data rates up to 11 Mbps.
`Independent throughput test results vary, depending upon
`the test methodology used. Most recently, the 340 Series
`achieved an actual throughput of 5.92 Mbps as tested by PC
`Magazine. In PC Magazine’s performance test, the Cisco
`Aironet products outperformed 3Com, Lucent, Compaq and
`Apple.
`
`Q. How far can a wireless client communicate to an
`Access Point?
`A. At 11 Mbps, client adapters have a range of 400 feet
`(120m) in open environments and 100 feet (30m) in typical
`office environments. At 1 Mbps, client adapter range can
`increase to 1500 feet (460m) in open environments and 300
`feet (90m) in office environments.
`
`Public
`Copyright © 2000 Cisco Systems, Inc. All Rights Reserved.
`Page 1 of 3
`
`Microsoft Corp. Exhibit 1052
`
`

`

`As specified in the standard, WEP uses the RC4 algorithm
`with a 40-bit and 128-bit encryption. When WEP is enabled,
`each station (clients and Access Points) has a set of keys. The
`keys are used to encrypt the data before it is transmitted
`through the airwaves. If a station receives a packet that is
`encrypted, it can only correctly decrypt the packet if it has
`the correct key.
`
`Cisco’s WEP implementation is in the hardware, so there is
`minimal performance impact when WEP is used.
`
`Wired Network Backbone
`
`Switch
`
`Server
`
`Access Point
`
`Desktop with
`PCI Card Adapter
`
`Laptop with
`PC Card Adapter
`
`Q. How many users can a Cisco wireless access point
`support?
`A. Theoretically, a Cisco access point can support up to
`20,000 addresses for filtering wireless clients. With any
`shared network-wired or wireless-the number of
`simultaneous users, the bandwidth available and the
`applications being implemented determines the throughput
`and effectiveness of the network.
`
`Cisco Aironet 340 Series wireless networks are comparable
`to shared 10 Mbps Ethernet LANs in the number of users
`supported. For a typical application, the number of users per
`segment that would be placed on a 10 Mbps wired segment
`could also be placed on an 11 Mbps wireless segment.
`Additional access points can be added to create additional
`network segments. For Cisco networks operating at lower
`data rates, there is less bandwidth available so slightly less
`wireless clients can be supported. In a typical business
`environment, a Cisco Access Point can support 25-50 clients.
`
`Q.
`Is a wireless LAN secure?
`A. Cisco products utilize spread spectrum technology, which
`was designed to be resistant to interference and unauthorized
`access. In addition, Cisco products require a service set
`identifier (SSID) code, and there are over 16 million values
`available to choose. No wireless client can access the network
`unless they have the SSID security code. Cisco also supports
`the Wired Equivalency Privacy (WEP) standard.
`
`Q. What is Wired Equivalency Privacy (WEP)?
`A. WEP is an optional IEEE 802.11 feature used to provide
`data encryption of wireless data packets.
`
`Public
`Copyright © 2000 Cisco Systems, Inc. All Rights Reserved.
`Page 2 of 3
`
`Microsoft Corp. Exhibit 1052
`
`

`

`Table 1 Compare the Products
`
`Cisco Aironet
`Wireless 340 Series
`
`Apple AirPort
`
`Compaq WL100, WL400
`
`Lucent Orinco
`Wireless Network
`
`3Com AirConnect
`
`Hardware
`
`Technology
`
`Chip Set
`
`802.11b
`
`Intersil/Prism II
`
`802.11b
`
`Lucent
`
`802.11b
`
`Intersil
`
`Data Rates (Mbps)
`
`1, 2, 5.5, 11
`
`1, 2, 5.5, 11
`
`1, 2, 5.5, 11
`
`802.11b
`
`Lucent/Rev 0
`
`1, 2, 5.5, 11
`
`802.11b
`
`Intersil
`
`1, 2, 5.5, 11
`
`40-bit/128-bit
`
`40-bit
`
`40-bit/128-bit
`
`64-bit/128-bit
`
`None
`
`No
`
`No
`
`Yes
`
`350
`
`No
`
`Yes
`
`No
`
`185
`
`No
`
`Yes
`
`Yes
`
`285
`
`Yes
`
`Yes
`
`Yes
`
`490
`
`Security
`
`Encryption
`
`Management
`
`Web-based Wireless
`Network
`
`Supports SNMP
`
`Access Point acts as
`DHCP Client
`
`Yes
`
`Yes
`
`Yes
`
`Power Requirements (mA)
`
`Transmit
`
`350
`
`Receive
`
`Sleep
`
`OS Drivers
`
`250
`
`10
`
`300
`
`60
`
`185
`
`N/A
`
`185
`
`9
`
`220
`
`38
`
`Windows 95/98/CE
`
`Yes/Yes/Yes
`
`No/No/No
`
`Yes/Yes/Yes
`
`Yes/Yes/Yes
`
`Yes/Yes/Yes
`
`Windows NT 4.0
`Workstation
`
`Windows 2000
`Professional Server
`
`Linux
`
`NetWare 4.x/5.x
`
`DOS/Windows 3.x
`
`Yes
`
`Yes/Yes
`
`Yes
`
`Yes/No
`
`Yes/Yes
`
`No
`
`No/No
`
`No
`
`No/No
`
`No/No
`
`Yes
`
`Yes/Yes
`
`Yes
`
`No/No
`
`No/No
`
`N/A-Not applicable: This product does not have this feature.
`
`Yes
`
`Yes/Yes
`
`Yes
`
`Yes/Yes
`
`No/Yes
`
`Yes
`
`Yes/Yes
`
`No
`
`Yes/Yes
`
`No/No
`
`Corporate Headquarters
`Cisco Systems, Inc.
`170 West Tasman Drive
`San Jose, CA 95134-1706
`USA
`http://www.cisco.com
`Tel: 408 526-4000
`800 553-NETS (6387)
`Fax: 408 526-4100
`
`European Headquarters
`Cisco Systems Europe
`11, Rue Camille Desmoulins
`92782 Issy Les Moulineaux
`Cedex 9
`France
`http://www-europe.cisco.com
`Tel: 33 1 58 04 60 00
`Fax: 33 1 58 04 61 00
`
`Americas Headquarters
`Cisco Systems, Inc.
`170 West Tasman Drive
`San Jose, CA 95134-1706
`USA
`http://www.cisco.com
`Tel: 408 526-7660
`Fax: 408 527-0883
`
`Asia Pacific Headquarters
`Cisco Systems Australia Pty., Ltd.
`Level 17, 99 Walker Street
`North Sydney
`NSW 2059 Australia
`Tel: 61 2 8448 7100
`Fax: 61 2 9957 4350
`
`Cisco Systems has more than 200 offices in the following countries. Addresses, phone numbers, and fax numbers are listed on the
`C i s c o C o n n e c t i o n O n l i n e W e b s i t e a t h t t p : / / w w w . c i s c o . c o m / g o / o f f i c e s .
`
`Argentina • Australia • Austria • Belgium • Brazil • Canada • Chile • China • Colombia • Costa Rica • Croatia • Czech Republic • Denmark • Dubai, UAE
`Finland • France • Germany • Greece • Hong Kong • Hungary • India • Indonesia • Ireland • Israel • Italy • Japan • Korea • Luxembourg • Malaysia
`Mexico • The Netherlands • New Zealand • Norway • Peru • Philippines • Poland • Portugal • Puerto Rico • Romania • Russia • Saudi Arabia • Singapore
`Slovakia • Slovenia • South Africa • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey • Ukraine • United Kingdom • United States • Venezuela
`
`Copyright © 2000 Cisco Systems, Inc. All rights reserved. Printed in the USA. Aironet, Cisco, Cisco IOS, Cisco Systems, and the Cisco Systems logo are registered trademarks of Cisco Systems, Inc. or its affiliates in
`the U.S. and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The use of the word partner does not imply a partnership relationship between
`Cisco and any of its resellers. (0005R)
`06/00 BW6342
`
`Microsoft Corp. Exhibit 1052
`
`