Cisco AIR-PCM352 - Aironet 350 Series 11Mbps Wireless LAN PC Card Adapter, Aironet 350 Series Installation And Configuration Manual

Corporate Headquarters

Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: [phone]

800 553-NETS (6387)

Fax: [phone]

Cisco Aironet 350 Series
Wireless LAN Client Adapters
Installation and Configuration Guide for
Windows CE

Software Release 2.50
March 2004

Customer Order Number:
Text Part Number: OL-1375-04

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT
SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE
OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required
to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not
installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to
comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital
devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television
communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits
controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public
domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH
ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF
DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING,
WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO
OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks of Cisco Systems, Inc.;
Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE,
CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems
logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ
Net Readiness Scorecard, LightStream, Linksys, MGX, MICA, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing,
RateMUX, Registrar, ScriptShare, SlideCast, SMARTnet, StrataView Plus, Stratm, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransPath,
and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries

.

All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship
between Cisco and any other company. (0402R)

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

Copyright © 2003-2004 Cisco Systems, Inc.
All rights reserved.

iii

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

CONTENTS

Preface ix

Audience x

Purpose x

Organization x

Conventions xi

Related Publications xiii

Obtaining Documentation xiii

Cisco.com xiii
Documentation CD-ROM xiii
Ordering Documentation xiv
Documentation Feedback xiv

Obtaining Technical Assistance xiv

Cisco.com xv
Technical Assistance Center xv

Cisco TAC Website xv
Cisco TAC Escalation Center xvi

Obtaining Additional Publications and Information xvi

Product Overview 1-1

Introduction to the Client Adapters 1-2

Terminology 1-2

Hardware Components 1-3

Radio 1-3
Radio Antenna 1-3
LEDs 1-3

Software Components 1-4

Radio Firmware 1-4
Driver 1-4
Client Utilities 1-4

Overview of ACU 1-5
Buttons on the Client Utility Screens 1-6

Contents

iv

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Network Configurations Using the Client Adapter 1-6

Ad Hoc Wireless LAN 1-7
Wireless Infrastructure with Workstations Accessing a Wired LAN 1-8

Preparing for Installation 2-1

Safety Information 2-2

FCC Safety Compliance Statement 2-2
Safety Guidelines 2-2
Warnings 2-3

Unpacking the Client Adapter 2-3

Package Contents 2-3

System Requirements 2-4

Site Requirements 2-5

For Infrastructure Devices 2-5
For Client Devices 2-5

Installing the Client Adapter 3-1

Finding the Windows CE Version 3-2

Installing the Driver and Client Utilities 3-2

Verifying Installation 3-5

Deciding How to Configure Your Client Adapter
(Windows CE .NET Only)

3-6

Using the Profile Manager 4-1

Overview of Profile Manager 4-2

Opening Profile Manager 4-2

Creating a New Profile 4-3

Selecting the Active Profile 4-3

Modifying a Profile 4-4

Editing a Profile 4-4
Renaming a Profile 4-4
Deleting a Profile 4-5

Configuring the Client Adapter 5-1

Configuring Your Client Adapter 5-2

Overview of Security Features 5-11

Static WEP Keys 5-11
Dynamic WEP Keys with EAP 5-11
Fast Roaming (CCKM) 5-14
Reporting Access Points that Fail LEAP or EAP-FAST Authentication 5-14

Contents

v

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Additional WEP Key Security Features 5-15

Message Integrity Check (MIC) 5-15
Temporal Key Integrity Protocol (TKIP) 5-16
Broadcast Key Rotation 5-16

Synchronizing Security Features 5-16

Using Static WEP 5-18

Enabling Static WEP and Entering a New Static WEP Key 5-18
Overwriting an Existing Static WEP Key 5-19
Disabling Static WEP 5-20

Enabling LEAP 5-20

Enabling EAP-FAST 5-21

Obtaining a PAC File (Manual PAC Provisioning Only) 5-22
Enabling EAP-FAST 5-22

Enabling Host-Based EAP 5-25

Obtaining and Importing CA and User Certificates 5-25

Obtaining CA and User Certificates 5-25
Importing a CA Certificate 5-26
Importing a User Certificate 5-27

Enabling Host-Based EAP 5-28

Enabling EAP-TLS 5-29
Enabling PEAP 5-30

Disabling LEAP, EAP-FAST, or Host-Based EAP 5-31

Using EAP Authentication 6-1

Overview 6-2

Using LEAP or EAP-FAST 6-2

With a Temporary Username and Password 6-2
With a Saved Username and Password 6-4
After Your EAP-FAST Credentials Expire 6-4

Using EAP-TLS 6-5

Using PEAP 6-6

After Profile Selection, Card Insertion, or Reset 6-6
After Your Password Expires (Windows NT or 2000 Domain Databases Only) 6-8

Performing Diagnostics 7-1

Overview of ACU Diagnostic Tools 7-2

Setting Signal Strength Display Units 7-2

Contents

vi

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Viewing the Status of Your Client Adapter 7-3

Viewing Statistics for Your Client Adapter 7-5

Routine Procedures 8-1

Inserting and Removing a PC Card 8-2

Inserting a PC Card into a Windows CE Device 8-2
Removing a PC Card from a Windows CE Device 8-2

Upgrading the Client Adapter Software 8-3

Upgrading the Firmware 8-3

Finding the Firmware Version 8-3
Loading New Firmware 8-4

Upgrading the Driver and Client Utilities 8-6

Finding the Driver and Client Utility Versions 8-7
Uninstalling the Current Driver and Client Utilities 8-8

Client Utility Procedures 8-8

Opening a Client Utility 8-8
Exiting a Client Utility 8-8
Finding the Version of a Client Utility 8-9
Deleting Client Utility Icons on HPC and Windows CE .NET Devices 8-9

CA and User Certificate Procedures (Host-Based EAP on PPC 2002 Devices Only) 8-10

Viewing CA and User Certificates 8-10
Removing CA and User Certificates 8-11

Restarting the Client Adapter 8-11

Troubleshooting 9-1

Accessing the Latest Troubleshooting Information 9-2

Interpreting the Indicator LEDs 9-2

Troubleshooting the Client Adapter 9-3

Problems Obtaining an IP Address 9-3
Problems Associating to an Access Point 9-3
Problems Authenticating to an Access Point 9-4
Problems Connecting to the Network 9-4
Reauthenticating After LEAP or EAP-FAST Times Out 9-4
Creating Strong Passwords 9-4

Error Messages 9-5

General Error Messages 9-5
Installation Error Messages 9-7
LEAP Authentication Error Messages 9-8
EAP-FAST Authentication Error Messages 9-10

Contents

vii

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

EAP-TLS Authentication Error Messages 9-14
PEAP Authentication Error Messages 9-15

Getting Help 9-17

PPC Devices 9-17
HPC and Windows CE .NET Devices 9-17

Technical Specifications A-1

Translated Safety Warnings B-1

Explosive Device Proximity Warning B-2

Dipole Antenna Installation Warning B-3

Warning for Laptop Users B-4

Declarations of Conformity and Regulatory Information C-1

Manufacturer’s Federal Communication Commission Declaration of Conformity Statement C-2

Department of Communications – Canada C-3

Canadian Compliance Statement C-3

European Community, Switzerland, Norway, Iceland, and Liechtenstein C-4

Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC C-4

Declaration of Conformity for RF Exposure C-5

Guidelines for Operating Cisco Aironet Wireless LAN Client Adapters in Japan C-6

Japanese Translation C-6
English Translation C-6

Administrative Rules for Cisco Aironet Wireless LAN Client Adapters in Taiwan C-7

Chinese Translation C-7
English Translation C-7

Declaration of Conformity Statements C-8

Declaration of Conformity Statements for European Union Countries C-8

Channels, Power Levels, and Antenna Gains D-1

Channels D-2

Maximum Power Levels and Antenna Gains D-3

Contents

viii

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Configuring the Client Adapter through
Windows CE .NET

E-1

Overview E-2

Overview of Security Features E-2

Static WEP Keys E-2
Dynamic WEP Keys with EAP E-3

Preparing for Configuration (EAP-TLS and PEAP Only) E-4

System Requirements E-4
Obtaining and Importing CA and User Certificates E-4

Configuring the Client Adapter E-5

Enabling EAP-TLS Authentication E-8
Enabling PEAP Authentication E-9

Associating to an Access Point Using Windows CE .NET E-10

Performing a Site Survey F-1

Overview F-2

Guidelines F-2
Additional Information F-2

Setting Signal Strength Display Units F-3

Using Passive Mode F-4

Using Active Mode F-6

Forcing the Client Adapter to Reassociate F-12

GLOSSARY

I

NDEX

ix

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

The preface provides an overview of the Cisco Aironet 350 Series Wireless LAN Client Adapters
Installation and Configuration Guide for Windows CE, references related publications, and explains how

to obtain other documentation and technical assistance, if necessary.

The following topics are covered in this section:

• Audience, page x

• Purpose, page x

• Organization, page x

• Conventions, page xi

• Related Publications, page xiii

• Obtaining Documentation, page xiii

• Obtaining Technical Assistance, page xiv

• Obtaining Additional Publications and Information, page xvi

x

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Audience

Audience

This publication is for the person responsible for installing, configuring, and maintaining a Cisco
Aironet 350 Series Wireless LAN Client Adapter on a Windows CE device. This person should be
familiar with computing devices and with network terms and concepts.

Purpose

This publication describes the Cisco Aironet client adapters in the 350 series and explains how to install,
configure, and troubleshoot them.

Note This version of the Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide

for Windows CE pertains specifically to client adapter driver and utility version 2.50. If you are using,

installing, or upgrading to older versions of client adapter software, refer to a previous version of this
manual for information and instructions.

Note Client adapter driver and utility version 2.50 is not supported for use with Cisco Aironet 340 series client

adapters.

Organization

This publication contains the following chapters:

• Chapter 1, “Product Overview,” describes the types of client adapters and their hardware and

software components and illustrates two common network configurations.

• Chapter 2, “Preparing for Installation,” provides information that you need to know before installing

a client adapter, such as safety information and system requirements.

• Chapter 3, “Installing the Client Adapter,” provides instructions for installing the driver and client

utilities.

• Chapter 4, “Using the Profile Manager,” explains how to use the ACU profile manager feature to

create and manage profiles for your client adapter.

• Chapter 5, “Configuring the Client Adapter,” explains how to change the configuration parameters

for a specific profile.

• Chapter 6, “Using EAP Authentication,” explains the sequence of events that occurs and the actions

you must take when a profile that is set for EAP authentication is selected for use.

• Chapter 7, “Performing Diagnostics,” explains how to use ACU to perform user-level diagnostics.

• Chapter 8, “Routine Procedures,” provides procedures for common tasks related to the client

adapters, such as upgrading software and restarting the adapter.

• Chapter 9, “Troubleshooting,” provides information for diagnosing and correcting common

problems that may be encountered when installing or operating a client adapter.

• Appendix A, “Technical Specifications,” lists the physical, radio, power, and regulatory

specifications for the client adapters.

xi

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Conventions

• Appendix B, “Translated Safety Warnings,” provides translations of the client adapters’ safety

warnings in nine languages.

• Appendix C, “Declarations of Conformity and Regulatory Information,” provides declarations of

conformity and regulatory information for the client adapters.

• Appendix D, “Channels, Power Levels, and Antenna Gains,” lists the IEEE 802.11b channels

supported by the world's regulatory domains as well as the maximum power levels and antenna gains
allowed per domain.

• Appendix E, “Configuring the Client Adapter through Windows CE .NET,” explains how to

configure and use a client adapter with Windows CE .NET.

• Appendix F, “Performing a Site Survey,” shows people who are responsible for conducting a site

survey how they can use ACU to determine the best placement for infrastructure devices within a
wireless network.

Conventions

This publication uses the following conventions to convey instructions and information:

• Commands and keywords are in boldface.

• Variables are in italics.

• Configuration parameters are capitalized.

• Notes, cautions, and warnings use the following conventions and symbols:

Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in

this manual.

Caution Means reader be careful. In this situation, you might do something that could result in equipment

damage or loss of data.

Warning

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. (To see translations of the warnings that appear
in this publication, refer to the appendix “Translated Safety Warnings.”)

Waarschuwing

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan
veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij
elektrische schakelingen betrokken risico’s en dient u op de hoogte te zijn van standaard
maatregelen om ongelukken te voorkomen. (Voor vertalingen van de waarschuwingen die in deze
publicatie verschijnen, kunt u het aanhangsel “Translated Safety Warnings” (Vertalingen van
veiligheidsvoorschriften) raadplegen.)

xii

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Conventions

Varoitus

Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen
kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja
tavanomaisista onnettomuuksien ehkäisykeinoista. (Tässä julkaisussa esiintyvien varoitusten
käännökset löydät liitteestä "Translated Safety Warnings" (käännetyt turvallisuutta koskevat
varoitukset).)

Attention

Ce symbole d’avertissement indique un danger. Vous vous trouvez dans une situation pouvant
entraîner des blessures. Avant d’accéder à cet équipement, soyez conscient des dangers posés par
les circuits électriques et familiarisez-vous avec les procédures courantes de prévention des
accidents. Pour obtenir les traductions des mises en garde figurant dans cette publication, veuillez
consulter l’annexe intitulée « Translated Safety Warnings » (Traduction des avis de sécurité).

Warnung

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer
Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie
sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur
Vermeidung von Unfällen bewußt. (Übersetzungen der in dieser Veröffentlichung enthaltenen
Warnhinweise finden Sie im Anhang mit dem Titel “Translated Safety Warnings” (Übersetzung der
Warnhinweise).)

Avvertenza

Questo simbolo di avvertenza indica un pericolo. Si è in una situazione che può causare infortuni.
Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti
elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione
delle avvertenze riportate in questa pubblicazione si trova nell’appendice, “Translated Safety
Warnings” (Traduzione delle avvertenze di sicurezza).

Advarsel

Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du
utfører arbeid på utstyr, må du være oppmerksom på de faremomentene som elektriske kretser
innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. (Hvis du vil se
oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i vedlegget "Translated
Safety Warnings" [Oversatte sikkerhetsadvarsler].)

Aviso

Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos fisicos.
Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos
relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir
possíveis acidentes. (Para ver as traduções dos avisos que constam desta publicação, consulte o
apêndice “Translated Safety Warnings” - “Traduções dos Avisos de Segurança”).

¡Advertencia!

Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los
procedimientos estándar de prevención de accidentes. (Para ver traducciones de las advertencias
que aparecen en esta publicación, consultar el apéndice titulado “Translated Safety Warnings.”)

Varning!

Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada.
Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och
känna till vanligt förfarande för att förebygga skador. (Se förklaringar av de varningar som
förekommer i denna publikation i appendix "Translated Safety Warnings" [Översatta
säkerhetsvarningar].)

xiii

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Related Publications

Related Publications

For more information about Cisco Aironet Wireless LAN Client Adapters for Windows CE, refer to the
following publications:

• Release Notes for Cisco Aironet Client Utilities 2.50 and Driver 2.50 for Windows CE

• Release Notes for Cisco Aironet 350 and CB20A Client Adapter Firmware 5.40.10

For more information about related Cisco Aironet products, refer to the publications for your
infrastructure device. You can access Cisco Aironet technical documentation at this URL:

http://www.cisco.com/en/US/products/hw/wireless/index.html

Obtaining Documentation

Cisco provides several ways to obtain documentation, technical assistance, and other technical
resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco websites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM
package, which may have shipped with your product. The Documentation CD-ROM is updated monthly
and may be more current than printed documentation. The CD-ROM package is available as a single unit
or through an annual subscription.

Registered Cisco.com users can order the Documentation CD-ROM (product number
DOC-CONDOCCD=) through the online Subscription Store:

http://www.cisco.com/go/subscription

xiv

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Obtaining Technical Assistance

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

• Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from

the Networking Products MarketPlace:

http://www.cisco.com/en/US/partner/ordering/index.shtml

• Registered Cisco.com users can order the Documentation CD-ROM (Customer Order Number

DOC-CONDOCCD=) through the online Subscription Store:

http://www.cisco.com/go/subscription

• Nonregistered Cisco.com users can order documentation through a local account representative by

calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere
in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click
Feedback at the top of the page.

You can e-mail your comments to [e-mail].

You can submit your comments by mail by using the response card behind the front cover of your
document or by writing to the following address:

Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) Website, as a
starting point for all technical assistance. Customers and partners can obtain online documentation,
troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users
have complete access to the technical support resources on the Cisco TAC website, including TAC tools
and utilities.

xv

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Obtaining Technical Assistance

Cisco.com

Cisco.com offers a suite of interactive, networked services that let you access Cisco information,
networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com provides a broad range of features and services to help you with these tasks:

• Streamline business processes and improve productivity

• Resolve technical issues with online support

• Download and test software packages

• Order Cisco learning materials and merchandise

• Register for online skill assessment, training, and certification programs

To obtain customized information and service, you can self-register on Cisco.com at this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product,
technology, or solution. Two levels of support are available: the Cisco TAC website and the Cisco TAC
Escalation Center. The avenue of support that you choose depends on the priority of the problem and the
conditions stated in service contracts, when applicable.

We categorize Cisco TAC inquiries according to urgency:

• Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,

product installation, or basic product configuration.

• Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably

impaired, but most business operations continue.

• Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects

of business operations. No workaround is available.

• Priority level 1 (P1)—Your production network is down, and a critical impact to business operations

will occur if service is not restored quickly. No workaround is available.

Cisco TAC Website

You can use the Cisco TAC website to resolve P3 and P4 issues yourself, saving both cost and time. The
site provides around-the-clock access to online tools, knowledge bases, and software. To access the
Cisco TAC website, go to this URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco service contract have complete access to
the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website
require a Cisco.com login ID and password. If you have a valid service contract but do not have a login
ID or password, go to this URL to register:

http://tools.cisco.com/RPF/register/register.do

xvi

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Preface

Obtaining Additional Publications and Information

If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco
TAC website, you can open a case online at this URL:

http://www.cisco.com/en/US/support/index.html

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC
website so that you can describe the situation in your own words and attach any necessary files.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These
classifications are assigned when severe network degradation significantly impacts business operations.
When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer
automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support
services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network
Supported Accounts (NSA). When you call the center, please have available your service agreement
number and your product serial number.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online
and printed sources.

• The Cisco Product Catalog describes the networking products offered by Cisco Systems as well as

ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

• Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new

and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking
Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design
Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:

http://www.ciscopress.com

• Pack et magazine is the Cisco monthly periodical that provides industry professionals with the latest

information about the field of networking. You can access Pa cke t magazine at this URL:

http://www.cisco.com/en/US/about/ac123/ac114/about_cisco_packet_magazine.html

• iQ Magazine is the Cisco monthly periodical that provides business leaders and decision makers

with the latest information about the networking industry. You can access iQ Magazine at this URL:

http://business.cisco.com/prod/tree.taf%3fasset_id=44699&public_view=true&kbns=1.html

• Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering

professionals involved in the design, development, and operation of public and private internets and
intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html

• Training—Cisco offers world-class networking training, with current offerings in network training

listed at this URL:

http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html

CHA P TER

1-1

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

1

Product Overview

This chapter describes the Cisco Aironet 350 Series Wireless LAN Client Adapters and illustrates their
role in a wireless network.

The following topics are covered in this chapter:

• Introduction to the Client Adapters, page 1-2

• Hardware Components, page 1-3

• Software Components, page 1-4

• Network Configurations Using the Client Adapter, page 1-6

1-2

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Introduction to the Client Adapters

Introduction to the Client Adapters

The Cisco Aironet 350 Series Wireless LAN Client Adapters are 100-milliwatt (mW) radio modules that
provide transparent wireless data communications between fixed, portable, or mobile devices and other
wireless devices or a wired network infrastructure. The client adapters are fully compatible when used
in devices supporting Plug-and-Play (PnP) technology.

The primary function of the client adapters is to transfer data packets transparently through the wireless
infrastructure through an access point connected to a wired LAN. The adapters operate similarly to a
standard network product except that the cable is replaced with a radio connection and an access point
is required to make the connection to the wire. No special wireless networking functions are required,
and all existing applications that operate over a network can operate using the adapters.

This document covers two types of client adapters:

Note The x in the product model number indicates the wired equivalent privacy (WEP) level of the card,

where 0 = no WEP capability, 1 = 40-bit WEP, and 2 = 128-bit WEP. However, if the second x is a 0
but the model number contains K9, the card is 128-bit WEP capable.

Note Client adapter driver and utility version 2.50 is not supported for use with Cisco Aironet 340 series client

adapters.

Terminology

The following terms are used throughout this document:

• client adapter—Refers to both PC cards and LM cards.

• PC card or LM card—Refers to a specific client adapter.

• workstation (or station)—Refers to a computing device with an installed client adapter.

• infrastructure device—Refers to a device that connects client adapters to a wired LAN, such as an

access point, bridge, or base station. Throughout this document, access point is used to represent
infrastructure devices in general.

• PC card (model number: AIR-PCM35x)—An IEEE

802.11b-compliant 2.4-GHz 11-Mbps PCMCIA card radio
module that can be inserted into any device equipped with an
external Type II or Type III PC card slot. Host devices can
include laptops, notebook computers, personal digital
assistants, and handheld or portable devices.

• LM card (model number: AIR-LMC35x)—An IEEE

802.11b-compliant 2.4-GHz 11-Mbps PCMCIA card radio
module that is usually preinstalled in a device equipped with an
internal Type II or Type III PC card slot. Host devices usually
include handheld or portable devices.

C

ISC

O

A

IR

O

N

E

T

340

SERIES

11

M

b

p
s W

IR

E

L
E

S

S
L

A

N

A

D

A
P

T

E

R

47519

CISCO AIRONET 340

SERIES

11 M

bps W

IR

E

LE

SS

L

AN

A

DA

PT

ER

47893

1-3

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Hardware Components

Hardware Components

The client adapter has three major hardware components: a radio, a radio antenna, and two LEDs.

Radio

The Cisco Aironet 350 series PC and LM cards are IEEE 802.11b-compliant client adapters. They
contain a direct-sequence spread spectrum (DSSS) radio that operates in the 2.4-GHz Industrial
Scientific Medical (ISM) license-free band. The 350 series 100-mW radio transmits data over a
half-duplex radio channel operating at up to 11 Mbps. These cards operate with other IEEE

802.11b-compliant client devices in ad hoc (or peer-to-peer) mode or with Cisco Aironet 340, 350, 1100,
and 1200 Series Access Points (with a 2.4-GHz radio) and other IEEE 80211b-compliant infrastructure
devices in infrastructure mode. They are approved for indoor and outdoor use.

DSSS technology distributes a radio signal over a wide range of frequencies and then returns the signal
to the original frequency range at the receiver. The benefit of this technology is its ability to protect the
data transmission from interference. For example, if a particular frequency encounters noise or
interference or both, enough redundancy is built into the signal on other frequencies that the client
adapter usually will still be successful in its transmission.

Radio Antenna

The type of antenna used depends on your client adapter:

• PC cards have an integrated, permanently attached diversity antenna. The benefit of the diversity

antenna system is improved coverage. The system works by allowing the card to switch and sample
between its two antenna ports in order to select the optimum port for receiving data packets. As a
result, the card has a better chance of maintaining the radio frequency (RF) connection in areas of
interference. The antenna is housed within the section of the card that hangs out of the PC card slot
when the card is installed.

• LM cards are shipped without an antenna; however, an antenna can be connected through the card’s

external connector.

Note External antennas used in combination with a power setting resulting in a radiated power level above

100 mW equivalent isotropic radiated power (EIRP) are not allowed for use within the European
community and other countries that have adopted the European R&TTE directive or the CEPT
recommendation Rec 70.03 or both. For more details on legal combinations of power levels and
antennas in those countries, refer to the “Declaration of Conformity for RF Exposure” section on

page C-5 and the “Channels, Power Levels, and Antenna Gains” section on page D-1.

LEDs

The client adapter has two LEDs that glow or blink to indicate the status of the adapter or to convey error
messages. Refer to the Chapter 9 for an interpretation of the LED codes.

1-4

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Software Components

Software Components

The client adapter has three major software components: radio firmware, a driver, and client utilities.

Radio Firmware

The firmware, which is contained in the client adapter’s Flash memory, controls the adapter’s radio. The
client adapter is shipped with the firmware installed; however, a more recent version of the firmware may
be available from Cisco.com.

Note Firmware version 5.40.10 is recommended for use with client adapter driver and utility version 2.50.

Chapter 8 provides instructions for determining the version of your client adapter’s firmware and

upgrading it if necessary.

Driver

The driver provides an interface between the Windows CE device and the client adapter, thereby enabling
Windows CE and the applications it runs to communicate with the adapter. The driver must be installed
before the adapter can be used. Chapter 3 provides instructions for installing the driver.

Client Utilities

Two client utilities are available for use with Cisco Aironet client adapters: Aironet Client Utility (ACU)
and Wireless Login Module (WLM). These utilities are optional applications that interact with the radio
firmware to adjust client adapter settings and display information about the adapter. The client utilities
and online help files are installed with the driver.

ACU enables you to create configuration profiles for your client adapter and perform user-level
diagnostics. Because ACU performs a variety of functions, it is documented by function throughout this
manual. However, an overview of the utility is provided on the next page to familiarize you with its
interface. WLM enables you to enter a temporary LEAP or EAP-FAST username and password for
authentication to a RADIUS server. Chapter 6 provides detailed information and instructions on using
WLM.

Note If your Windows CE device is running Windows CE .NET, you can configure your client adapter

through the operating system instead of through ACU. Refer to Appendix E for information.
However, ACU is recommended for configuring the client adapter.

Note All of the screens included in this manual were taken from a PPC 2002 or PPC 2003 device. The

screens look slightly different on other Windows CE devices.

1-5

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Software Components

Overview of ACU

The Profiles screen (see Figure 1-1) is ACU’s primary screen. It appears when you open ACU.

Figure 1-1 Profiles Screen

The five tabs along the bottom of the screen (for PPC devices) or top of the screen (for HPC and
Windows CE .NET devices) enable you to activate the following ACU features:

• Profiles—Enables you to use the profile manager feature to create and manage profiles for your

client adapter. Chapter 4 provides instructions for using this feature.

• Firmware—Enables you to load new firmware for your client adapter. Chapter 8 provides

instructions for upgrading firmware.

• Status—Enables you to view the current status of your client adapter. Chapter 7 provides additional

information on viewing the status.

• Statistics—Enables you to view transmit, receive, and MIC statistics for your client adapter.

Chapter 7 provides additional information on viewing statistics.

• Survey—Enables people who are responsible for conducting a site survey to determine the best

placement of infrastructure devices within a wireless network. Appendix F provides instructions for
using the site survey feature.

The status bar at the top or bottom of the Profiles screen reflects the current state of your client adapter.
The following states are possible: Not Associated, Associated, Authenticated, Ad Hoc Mode, and Cisco
Wireless LAN Adapter Not Found.

1-6

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Network Configurations Using the Client Adapter

Buttons on the Client Utility Screens

The buttons on the client utility screens are used to perform specific functions. Tab l e 1 - 1 describes the
most common buttons.

Network Configurations Using the Client Adapter

The client adapter can be used in a variety of network configurations. In some configurations, access
points provide connections to your network or act as repeaters to increase wireless communication
range. The maximum communication range is based on how you configure your wireless network.

This section describes and illustrates the two most common network configurations:

• Ad hoc wireless local area network (LAN)

• Wireless infrastructure with workstations accessing a wired LAN

For examples of more complex network configurations involving client adapters and access points, refer
to the hardware installation guide for your access point.

Note Refer to Chapter 5 for information on setting the client adapter’s network (or infrastructure) mode.

Table 1-1 Buttons on the Client Utility Screens

Button Description

Cancel Exits the screen without saving any changes

OK Saves any changes and exits the screen

Start Initiates a test

Stop Stops a test that is running

X Exits the screen without saving any changes

? (available on HPC and
Windows CE .NET devices
only)

Provides information on the screen and its parameters

1-7

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Network Configurations Using the Client Adapter

Ad Hoc Wireless LAN

An ad hoc (or peer-to-peer) wireless LAN (see Figure 1-2) is the simplest wireless LAN configuration.
In a wireless LAN using an ad hoc network configuration, all devices equipped with a client adapter can
be linked together and communicate directly with each other. The use of an infrastructure device, such
as an access point, is not required.

Figure 1-2 Ad Hoc Wireless LAN

47520

1-8

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 1 Product Overview

Network Configurations Using the Client Adapter

Wireless Infrastructure with Workstations Accessing a Wired LAN

A microcellular network can be created by placing two or more access points on a LAN. Figure 1-3
shows a microcellular network with workstations accessing a wired LAN through several access points.

This configuration is useful with portable or mobile stations because it allows them to be directly
connected to the wired network even while moving from one microcell domain to another. This process
is transparent, and the connection to the file server or host is maintained without disruption. The mobile
station stays connected to an access point as long as it can. However, once the transfer of data packets
needs to be retried or beacons are missed, the station automatically searches for and associates to another
access point. This process is referred to as seamless roaming.

Figure 1-3 Wireless Infrastructure with Workstations Accessing a Wired LAN

Access Point

(Root Unit)

Access Point
(Root Unit)

5835

Wired LAN

CHA P TER

2-1

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

2

Preparing for Installation

This chapter provides information that you need to know before installing a client adapter.

The following topics are covered in this chapter:

• Safety Information, page 2-2

• Unpacking the Client Adapter, page 2-3

• System Requirements, page 2-4

• Site Requirements, page 2-5

2-2

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 2 Preparing for Installation

Safety Information

Safety Information

Follow the guidelines in this section to ensure proper operation and safe use of the client adapter.

FCC Safety Compliance Statement

The FCC, with its action in ET Docket 96-8, has adopted a safety standard for human exposure to RF
electromagnetic energy emitted by FCC-certified equipment. When used with approved Cisco Aironet
antennas, Cisco Aironet products meet the uncontrolled environmental limits found in OET-65 and ANSI
C95.1, 1991. Proper operation of this radio device according to the instructions in this publication will
result in user exposure substantially below the FCC recommended limits.

Safety Guidelines

• Do not touch or move the antenna while the unit is transmitting or receiving.

• Do not hold any component containing a radio such that the antenna is very close to or touching any

exposed parts of the body, especially the face or eyes, while transmitting.

• Do not operate the radio or attempt to transmit data unless the antenna is connected; otherwise, the

radio may be damaged.

• High-gain, wall-mount, or mast-mount antennas are designed to be professionally installed and

should be located at a minimum distance of 12 inches (30 cm) or more from the body of all persons.
Please contact your professional installer, VAR, or antenna manufacturer for proper installation
requirements.

• Use in specific environments:

–

The use of wireless devices in hazardous locations is limited to the constraints posed by the
safety directors of such environments.

–

The use of wireless devices on airplanes is governed by the Federal Aviation Administration
(FAA).

–

The use of wireless devices in hospitals is restricted to the limits set forth by each hospital.

2-3

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 2 Preparing for Installation

Unpacking the Client Adapter

Warnings

Observe the following warnings when operating the client adapter:

Warning

Do not operate your wireless network device near unshielded blasting caps or in an explosive
environment unless the device has been modified to be especially qualified for such use.

Warning

In order to comply with FCC radio frequency (RF) exposure limits, dipole antennas should be located
at a minimum of 7.9 inches (20 cm) or more from the body of all persons.

Warning

In order to comply with RF exposure limits established in the ANSI C95.1 standards, it is recommended
when using a laptop with a PC card client adapter that the adapter’s integrated antenna is positioned
more than 2 inches (5 cm) from your body or nearby persons during extended periods of transmitting
or operating time. If the antenna is positioned less than 2 inches (5 cm) from the user, it is
recommended that the user limit exposure time.

Translated versions of these safety warnings are provided in Appendix B.

Unpacking the Client Adapter

Follow these steps to unpack the client adapter:

Step 1 Open the shipping container and carefully remove the contents.

Step 2 Return all packing materials to the shipping container and save it.

Step 3 Ensure that all items listed in the “Package Contents” section below are included in the shipment. Check

each item for damage.

Note If any item is damaged or missing, notify your authorized Cisco sales representative. Any remote

antenna and its associated wiring are shipped separately.

Package Contents

Each client adapter is shipped with the following items:

• Quick Start Guide: Cisco Aironet Wireless LAN Client Adapters

• Cisco Aironet Wireless LAN Client Adapters CD

• Cisco product registration card

2-4

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 2 Preparing for Installation

System Requirements

System Requirements

In addition to the items shipped with the client adapter, you will also need the following in order to install
and use the adapter:

• One of the following Windows CE devices equipped with a Type II or Type III PC card slot:

–

HPC 2000 device running Windows CE 3.0 with an ARM, StrongARM, MIPS, SH4, or X86
platform

–

PPC 2000 device running Windows CE 3.0 with an ARM, StrongARM, MIPS, or SH3 platform

–

PPC 2002 device running Windows CE 3.0 with a StrongARM platform

–

PPC 2003 device running Windows CE .NET 4.2 with a StrongARM platform

–

Windows CE .NET device running Windows CE .NET 4.0, 4.1, or 4.2 with a StrongARM,
ARMv4, ARMv4T, or X86 platform

• Cisco Aironet 350 Series Wireless LAN Client Adapter (PC card or LM card)

Note Client adapter driver and utility version 2.50 is not supported for use with Cisco Aironet 340

series client adapters.

• Client adapter firmware version 5.40.10 or later (recommended)

• Laptop or PC running a Windows operating system and Microsoft ActiveSync

• ActiveSync connection (which can be serial, USB, etc.) to the Windows CE device

• A PPC 2002, PPC 2003, or Windows CE .NET 4.2 device, if your wireless network uses EAP-FAST,

EAP-TLS, or PEAP authentication

• Certificate Authority (CA) and user certificates for EAP-TLS authentication or CA certificate for

PEAP authentication

• If your wireless network uses PEAP authentication with a One-Time Password (OTP) user database:

–

The hardware token from an OTP vendor

–

Your hardware token password

• The following information from your system administrator:

–

The logical name for your Windows CE device (also referred to as client name)

–

The case-sensitive service set identifier (SSID) for your RF network

–

The primary and secondary Domain Name System (DNS) and Windows Internet Name Service
(WINS) to be assigned to your Windows CE device

–

If your network setup does not include a DHCP server, the IP address, subnet mask, and default
gateway address to be assigned to your device

–

The wired equivalent privacy (WEP) keys of the access points with which your client adapter
will communicate, if your wireless network uses static WEP for security

–

Your username and password for LEAP, EAP-FAST, or PEAP authentication, if your wireless
network uses one of these authentication types

–

Your username for EAP-TLS authentication, if your wireless network uses EAP-TLS
authentication

–

Protected access credentials (PAC) file if your wireless network uses EAP-FAST authentication
with manual PAC provisioning

2-5

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 2 Preparing for Installation

Site Requirements

Site Requirements

This section discusses the site requirements for both infrastructure and client devices.

For Infrastructure Devices

Because of differences in component configuration, placement, and physical environment, every
network application is a unique installation. Therefore, before you install any wireless infrastructure
devices (such as access points, bridges, and base stations, which connect your client adapters to a wired
LAN), a site survey must be performed to determine the optimum placement of these devices to
maximize range, coverage, and network performance. Appendix F, which is provided for people who
are responsible for conducting a site survey, explains how ACU’s site survey tool can be used to
determine the best placement for infrastructure devices within a wireless network.

Note Infrastructure devices are installed and initially configured prior to client devices.

For Client Devices

Because the client adapter is a radio device, it is susceptible to RF obstructions and common sources of
interference that can reduce throughput and range. Follow these guidelines to ensure the best possible
performance:

• Install the client adapter in an area where large steel structures such as shelving units, bookcases,

and filing cabinets will not obstruct radio signals to and from the client adapter.

• Install the client adapter away from microwave ovens. Microwave ovens operate on the same

frequency as the client adapter and can cause signal interference.

2-6

Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE

OL-1375-04

Chapter 2 Preparing for Installation

Site Requirements