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Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

April 2007

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Text Part Number: OL-8371-05

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 RESPON SIBILITY FOR THEIR APPLICA TION OF ANY PRODUCT S.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORM ATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFT WARE 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 Cisc o’s writ ten author ization m ay resul t in the equi pment no lo nger comp lyi ng with FCC requi rements for Class A or Class B digital devices. In that event, your right to use the equ ipment may be limit ed by FCC regul ations , and you may be required to correct a ny 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 probab ly 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 meas ures:

• Turn the television or radio antenna unt il the int erference st ops.

• Move the equipment to one side or the other of the tel evisio n or radi o.

• Move the equipment farther away from the televi sion or radio.

• Plug the equipment into an outlet that is on a di fferent cir cuit from the televi sion o r radio. (That is, make certain th e equipment and the te levision or radio are on circuit s controlled by different circuit breaker s o r fu ses.)

Modifications to this product no t author ized by Ci sco Syst ems, Inc. coul d voi d the FCC appro val and negate your authorit y to op erate the pr odu ct. The Cisco implementation of TCP head er compressi on is an adap tation of a program developed by the Universi ty of Ca lifornia, Berk eley (UCB) as part of UCB ’s public

domain version of the UNIX operatin g system. All rights reserved . Copyri ght © 1981 , Rege nts of the Uni versity of Califor nia. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AN D SOFTWARE OF THESE SUPP LIERS ARE PROVIDED “AS IS” WITH

ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAI M ALL WARRANTIE S, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NO NINFRINGEME NT OR ARISING FROM A COURS E 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 .

CCVP, the Cisco Logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networking Academy, Network Registrar, Pack e t, PIX, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath 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. (0612R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative pur poses onl y. Any use of act ual IP addr ess es in ill ustr ativ e conte nt is uninte ntio nal and coincident al.

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

CONTENTS

Preface ix

Audience ix

Purpose ix

Organization ix

Conventions x

Related Publications xii

Locating the Product Serial Number xiii

Obtaining Documentation, Obtaining Support, and Security Guidelines xiv

CHAPTER

1 Overview 1-1

Product Terminology 1-1 Autonomous Access Points 1-1 Lightweight Access Points 1-2

Guidelines for Using Cisco Aironet Lightweight Access Points 1-2

Hardware Features 1-3

Network Examples with Autonomous Access Points 1-8

Root Access Point on a Wired LAN 1-9 Repeater Unit that Extends Wireless Range 1-10 Central Unit in an All-Wireless Network 1-11 Bridge Network with Wireless Clients 1-11 Point-to-Point Bridge Configuration 1-12 Workgroup Bridge Network 1-12

Single or Dual-Radio Operation 1-5 Antennas Supported 1-5 Ethernet Port 1-5 Console Port 1-5 LEDs 1-6 Power Sources 1-6 UL 2043 Certification 1-7 Anti-Theft Features 1-7

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Network Example with Lightweight Access Points 1-13

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Contents

CHAPTER

2 Installing the Access Point 2-1

Safety Information 2-2

FCC Safety Compliance Statement 2-2 General Safety Guidelines 2-2

Warnings 2-2

Unpacking the Access Point 2-3

Package Contents 2-3

Basic Installation Guidelines 2-4

Controller Discovery Process for Lightweight Access Points 2-4

Deploying the Access Points on the Wireless Network 2-5

Access Point Layout and Connectors 2-6

Mounting Overview 2-7

Mounting on a Horizontal or Vertical Surface 2-9

Mounting Below a Suspended Ceiling 2-10

Mounting Above a Suspended Ceiling 2-11

Mounting Access Point on a Desktop or Shelf 2-14

Cable Security Bracket 2-14

Removing the Cable Security Bracket 2-15

CHAPTER

Attaching the Access Point to the Mounting Plate 2-16

Securing the Access Point 2-17

Using a Security Cable 2-17 Securing the Access Point to the Mounting Plate 2-18

Connecting the Ethernet and Power Cables 2-20

Connecting to an Ethernet Network with an Inline Power Source 2-21 Connecting to an Ethernet Network with Local Power 2-22

Powering Up the Access Point 2-22

3 Troubleshooting 1240AG Series Autonomous Access Points 3-1

Checking the Lightweight Access Point LEDs 3-2

Checking Basic Settings 3-3

Default IP Address Behavior 3-4 Enabling the Radio Interfaces 3-4 SSID 3-4 WEP Keys 3-4 Security Settings 3-5

Low Power Condition 3-5

Intelligent Power Management 3-6

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Inline Power Status Messages 3-7

Configuring Power Using the CLI 3-9

Issuing the Cisco IOS Command Using the CLI 3-10

Configuring the Access Point System Power Settings Using a Browser 3-11

Running the Carrier Busy Test 3-13

Running the Ping Test 3-14

Resetting to the Default Configuration 3-14

Using the MODE Button 3-15 Using the Web Browser Interface 3-15

Reloading the Access Point Image 3-16

Using the MODE Button 3-16 Web Browser Interface 3-17

Browser HTTP Interface 3-17 Browser TFTP Interface 3-18

Contents

CHAPTER

Obtaining the Access Point Image File 3-19

Connecting to the Access Point Locally 3-20

Obtaining the TFTP Server Software 3-20

4 Troubleshooting 1240AG Series Lightweight Access Points 4-1

Guidelines for Using Cisco Aironet Lightweight Access Points 4-2

Using DHCP Option 43 4-2

Checking the Lightweight Access Point LEDs 4-3

Low Power Condition for Lightweight Access Points 4-5

Intelligent Power Management 4-5 Configuring Power Using Controller CLI Commands 4-6

Manually Configuring Controller Information Using the Access Point CLI 4-7

Configuring Controller Information 4-8 Clearing Manually Entered Controller Information 4-8 Manually Resetting the Access Point to Defaults 4-8

Returning the Lightweight Access Point to Autonomous Mode 4-9

Using a Controller to Return the Access Point to Autonomous Mode 4-9 Using the MODE Button to Return the Access Point to Autonomous Mode 4-9 MODE Button Setting 4-10

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Obtaining the Autonomous Access Point Image File 4-10

Connecting to the Access Point Locally 4-11

Obtaining the TFTP Server Software 4-12

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

Contents

APPENDIX

A Translated Safety Warnings A-1

B Declarations of Conformity and Regulatory Information B-1

Manufacturers Federal Communication Commission Declaration of Conformity Statement B-2

VCCI Statement for Japan B-3

Department of Communications—Canada B-4

Canadian Compliance Statement B-4

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

Declaration of Conformity with Regard to the 1999/5/EC (R&TTE Directive) B-5

Declaration of Conformity for RF Exposure B-7

Guidelines for Operating Cisco Aironet Access Points in Japan B-8

Japanese Translation B-8 English Translation B-8

Administrative Rules for Cisco Aironet Access Points in Taiwan B-9

Access Points with IEEE 802.11a Radios B-9

Chinese Translation B-9 English Translation B-9

All Access Points B-10

Chinese Translation B-10 English Translation B-10

APPENDIX

Declaration of Conformity Statements B-11

Declaration of Conformity Statements for European Union Countries B-11

C Access Point Specifications C-1

D Channels and Maximum Power Levels D-1

E Console Cable Pinouts E-1

Overview E-2

Console Port Signals and Pinouts E-2

F Priming Lightweight Access Points Prior to Deployment F-1

G Configuring DHCP Option 43 for Lightweight Access Points G-1

Overview G-2

Configuring Option 43 for 1000 Series Access Points G-3

Configuring Option 43 for 1100, 1130, 1200, 1240, and 1300 Series Lightweight Access Points G-4

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

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LOSSARY

NDEX

Contents

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Audience

Preface

This guide is for the networking professional who installs and manages the Cisco Aironet 1240AG Series Access Point. The 1 240AG series ac cess poi nt is available in auton omo us an d ligh twei ght configurations.

To use this guide with autonomous access points, you should have experience working with Cisco IOS software and be familiar with the concepts and terminology of wireless local area networks.

To use this guide wit h light weigh t a cce ss po ints, you sh ould have experienc e worki ng with a Ci sco Wireless LAN Controller and be familiar w ith the con cepts an d termin ology of wire less local ar ea networks.

Purpose

This guide provides the infor mation you need to insta ll your au tonomou s or ligh tweight ac cess poin t. For detailed information about Cisco IOS commands used with autonomous access points, refer to the

Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges for this release. For information about the standard Cisco IOS Release 12.3 commands, refer to the Cisco IOS documentation set available from the Cisco.com home page at Technical Support & Documentation. On the Technic al Support & Documentation home page, click Cisco IOS Software > Cisco IOS Software Releases 12.3 Mainline.

For information about Cisco Wireless LAN Controllers, refer to the Cisco documentation sets available from the Cisco.com h ome pa ge at Technical Support & Documentation. On the Technical Su ppo rt & Documentation hom e page, cli ck Wireless and the documentation is listed under the “Wireless LAN Controllers” section.

Organization

This guide is organized into these chapters:

Chapter 1, “Overview,” lists the software and hardware features of the access point and describes the

access point’s role in your networ k.

Chapter 2, “Installing the Access Point,” describes how to mount the access point on a desktop, wall, or

ceiling, how to con ne ct Et her net , seri al, an d power cables, and provi des an in st alla tio n sum ma ry, safety warnings, and general gui deline s.

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Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

Conventions

Preface

Chapter 3, “Troubleshooting 124 0AG Series Autonomous Acce ss Points,” provides trouble shootin g

procedures for basic probl ems with the aut onomous ac cess point.

Chapter 4, “Troubleshooting 1240AG Series Light weight Acce ss Points,” provides troub lesh ooting

procedures for basic pr oblems with the lightwe ight acce ss point.

Appendix A, “Translated Safety Warnings,” provides translations of the safety warnings that appear in

this publication.

Appendix B, “D ecl ara tio ns of Conf or mity and Regula tory I nfo rm ation, ” provides declarations of

conformity and regulatory information for the access point.

Appendix C, “Access Point Specifications,” lists technical specifications for the access point. Appendix D, “Channels and Maximum Power Levels,” lists the autonomous access point radio channels

and the maximum power levels supported by the world’s regulatory domains.

Appendix E, “Conso le Cable Pinout s,” identifies the pinouts for the serial console cable that connects

to the access point’s serial console port.

Appendix F, “Priming Lightweight Access Points Prior to Dep loyment,” desc ribe s th e pro cedu re to

prime access points with controller information.

Appendix G, “Configuring DHCP Option 43 for Lightweight Access Points,” describes the procedure to

configure DHCP Option 43 for lig htwei ght acce ss points.

Conventions

This publication use s the se conventions to co nvey instructions a nd info rma tion: Command descriptions use th ese conventions:

Interactive examples use these conventions:

Notes, cautions, and timesavers use these conventions and symbols:

Tip Means the following will help you solve a problem. The tips information might not be troubleshooting

or even an action, but cou ld b e useful info rma tion.

• Commands and keywords are in boldfac e text.

• Arguments for which you supply values are in it alic.

• Square brackets ([ ]) mean optional elements.

• Braces ({ }) group required choices, and vertical bars ( | ) separate the alternative elements.

• Braces and vertical bars within square brackets ([{ | }]) mean a required choice within an optional

element.

• Terminal sessions and system displays are in screen font.

• Information you ent er i s in boldface screen font.

• Nonprinting charac ters, such as passwords or tab s, are i n angle bra ckets (< >) .

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

this manual.

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Preface

Conventions

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

or loss of data.

Warning

Waarschuwing

Varoitus

Attention

Warnung

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.”)

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.)

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).)

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).

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

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Advarsel

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).

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].)

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

Related Publications

Preface

Aviso

¡Advertencia!

Varning!

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”).

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.”)

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].)

Related Publications

These documents provide informa tion abo ut the auto nomous acc ess point :

• Release Notes for Cisco Aironet Access Points

• Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges

• Cisco IOS Software Configuration Guide for Cisco Aironet Access Points

These documents pr ovide inf orm a tion a bo ut t he ligh twe ight ac cess po int and th e c ontr oll er:

• Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points

• Cisco IOS Software Configuration Guide for Cisco Aironet Access Points

Click this link to browse to the Cisco Wireless documentation home pa ge:

http://www.cisco.com/en/US/products/hw/wireless/tsd_produ cts_supp ort_cat egory_home.html

T o bro wse to the 1240AG series access point documentation, click Cisco Aironet 1240AG Series listed under “Wireless LAN Access.”

T o browse to the Cisco W ireless LAN Controller docu mentation, click Cisco 4400 Series Wireless LAN Controllers or Cisco 2000 Series Wireless LAN Controllers listed under “W ir eless LAN Controller s.”

xii

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Preface

CAUTION

Hot

Surfaces

Locating the Product Serial Number

The access point serial number is on the bottom of the housing (refer to Figure 1).

Figure 1 Location of Serial Number Label

Locating the Product Serial Number

SN: NNNNNNNN

135531, 781-00426-01 A0

The access point serial number label contains the following information:

• Model number, such as AIR -AP1 242AG-A-k9 or AI R-LAP 1242AG-A-k9

• Serial number, such as VDF0636XXX X (11 alpha numeric digi ts)

• MAC address, such as 00abc65094f3 (12 hexadecimal digits)

SN: NNNNNNNN

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• Location of manufactu re, such as Made in Singapore

You need your product serial number when re questing sup port from the Cisco Technical Assistance Center.

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xiii

Obtaining Documentation, Obtaining Support, and Security Guidelines

For information on obtaining docume ntatio n, obtai ning suppor t, providing doc umen tation fe edback , security guidelines, and also recommended aliases and general Cisco documents, see the monthly What’s New in Cisco Product Documentation, w hic h al so l ist s al l new and revised Ci sco technical documentation , at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Preface

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Overview

The Cisco Aironet 1240AG Series Access Point is available in autonomous and lig htwei ght configurations. The au to nomous a ccess po i nts c an su ppo rt stan dal one ne twork c onfigura tio ns wi th all configuration settings m ainta ined wit hin the ac cess points. T he li ghtw eight ac cess points ope rat e i n conjunction with a Cisco wireless LAN contr ol ler with all configuration information maintained within the controller.

Product Terminology

The following terms re fer to th e a ut onomou s and li ghtw eig ht p rod uc ts:

• The term access point de scribes bo th auton omous an d lightwe ight produc ts.

• The term autonomous ac cess point desc ribes only the autono mous product.

• The term lightweight access point describs only the light weigh t pr oduct .

• The term access point de scribes a produ ct opera ting as an acce ss point.

• The term bridge descr ibe s a p rod uct oper at ing as a b ridge .

CHA PTER

Autonomous Access Points

Cisco Aironet 1240AG Series A cce ss Poin t ( AIR-A P1242AG or AI R-AP12 42G ) pr ovides a sec ure, affordable, and easy-to-use wireless LAN solution that combines mobility and flexibility with the enterprise-class feat ures require d by networking prof essiona ls. With a management system based on Cisco IOS software, the 1240 AG series is a Wi-Fi certified, wi rele ss LA N t ransc eiver.

The autonomous 12 42AG access point contains two integrated rad ios: a 2.4-GHz radio (IEEE 802.11g) and a 5-GHz r adio (IEE E 80 1.11a ). T he aut on omo us 1242 G acce ss p oint con tai ns a si ngle int egrate d radio: a 2.4-GHz radio (I EEE 802.1 1g).

The access point serves as the c onnect ion point be tween wireless and wired net works or as the center point of a stand-alone wirele ss network. In large install ations, w ireless users wit hin radio ra nge of an access point can roam throughout a facility while maintaining seamless, uninterrupted access to the network.

You can configure and monitor the access point using the command-line interface (CLI), the browser-based management system, or Simple Networ k Manageme nt Protocol (SN MP).

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1-1

Guidelines for Using Cisco Aironet Lightweight Access Points

Lightweight Access Points

The Cisco Aironet 1240AG Series Access Point (AIR -LAP124 2AG or AIR-LAP1242G) comb ines mobility and flexib ility w ith the ent erp ri se-c lass fe atur es requ i red by n etwor king pr ofessi on als. These lightweight access points are part of the Cisco Integrated Wireless Network Solution and require no manual configur ation before they are mounted. The lightwe ight access point is automatically confi gured by a Cisco wireless LAN controller (hereafter called a controller) using the Lightweight Acc ess Point Protocol (LWAPP).

The lightweigh t 12 42AG access p oint con tai ns t wo in tegrate d rad ios: a 2 .4- GHz ra dio (IE EE 802. 11g) and a 5-GHz r adio ( IEEE 80 1.11a ). The li ghtw ei ght 1 242 G a cce ss po int con tai ns a si ngle int egrated radio: a 2.4-GHz radio (I EEE 802.1 1g). Us ing a cont roller, you can configure the ra dio setti ngs.

In the Cisco Centralized Wireless LAN architecture, access points operate in the lightweight mode (as opposed to autonomous mode). The lightweight access points associate to a controller. The controller manages the co nfigurati on, firm ware, a nd c ontr ol t ran sac ti ons suc h as 802.1x a uthe nt ic ation. I n addition, all wireless tra ffic is tunneled through t he control ler.

LWAPP is an Internet Engineer ing Task Force (IETF) draft protocol th at de fines the c ontr ol me ssag ing for setup and path authentication and run-time operations. L WAPP also defines the tunneling mechanism for data tr affic.

Chapter 1 Overview

In an LWAPP environment, a lightweight access point discovers a controller by using LWAPP discovery mechanisms and then sends i t a n LWAPP join request. The controller se nds the l ightw eig ht a cce ss poi nt an L WAPP join response allowing the ac cess point to join the con troller . When th e access point is join ed, the access point downloads its software if the versions on the access point and controller do not match. After an access point joins a controller, you can reass ign it to any contro ller on your ne twork.

LWAPP secures the control communication between the lightweight access point and controller by means of a secure key distribution, utilizing X.509 certificates on both the access point and controller.

This chapter provides information on the following topics:

• Guidelines for Usi ng Ci sco Air onet L ight we ight A cc ess Point s, pa ge 1-2

• Hardware Features , pa ge 1-3

• Network Examples with Autonomous Access Points, page 1-8

Guidelines for Using Cisco Aironet Lightweight Access Points

Yo u should keep these guide line s in mind when you use a light weig ht access poi nt:

• Lightweight access points c an onl y comm unic ate w ith Cisco 20 06 serie s wir eless LA N co ntrol le rs

or 4400 series controllers. C isco 4100 ser ies, Airespa ce 4012 ser ies, and Aire space 4024 series controllers are not suppor ted becau se they lack the mem ory requi red to suppo rt access point s running Cisco IO S so ftwa re.

• Lightweight acc ess po int s do n ot su ppo rt Wireless Dom ain Servi ces (W DS) and c annot

communicate with WDS devices. However, the controller provides functionality equivalent to WDS when the access point associates to it.

• Lightweight access po ints suppor t e ight BSSID s per rad io a nd a tot al of e ight w ireless LA Ns p er

access point. When a lightweight access point associates to a controller, only wireless LANs with IDs 1 through 8 are pushed to the access poi nt.

• Lightweight access points do not support Layer 2 LWAPP. They must get an IP address and discover

the controller usin g DH CP, DNS, or IP subnet broadcast.

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Chapter 1 Overview

• The lightweigh t acc ess p oi nt c on sole po rt i s en ab led fo r mo nit ori ng an d de bug purp ose s ( all

configuration commands are disabled when the access point is associated to a controller).

Hardware Features

Key hardware features of the access point incl ude:

• Dual-radio operation (see page 1-5)

• Ethernet port (see page 1-5)

• Console port (see pa ge 1-5)

• LEDs, (see page 1-6)

• Multiple power source s ( see page 1-6)

• UL 2043 certificatio n ( see pa ge 1-7)

• Anti-theft features (see page 1-7)

Refer to Appendix C, “Access Point Specifications,” for a list of access point specifications.

Figure 1-1 shows the access point with antennas.

Hardware Features

Figure 1-1 Access Point with Antennas

STATUS

ETHERNET

RADIO

MODE

CONSOLE

ETHERNET

48VDC

2.4 GHz RIGHT / PRIMARY

2.4 GHz LEFT

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Hardware Features

Chapter 1 Overview

Figure 1-2 illustrates the 2.4-GHz connector end of the access point.

Figure 1-2 Access Point 2.4 GHz Connector End

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

6 7 8 91 5432

1 2.4-GHz antenna connector (left) 6 Console port (RJ-45) 2 Ethern et LED 7 Ethernet port (RJ-45) 3 Radio LED 8 48-VDC power port 4 Status LED 9 2.4-GHz antenna connector (right/primary) 5 Mode button

Figure 1-3 illustrates the 5-GHz connector end of the access point.

Figure 1-3 Access Point 5-GHz Connector End

5 GHz ANTENNA w/RP-TNC

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LEFT

RIGHT / PRIMARY

1 5-GHz antenna connector (left) 3 Security key slot 2 5-GHz antenna connector (right/primary)

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Chapter 1 Overview

Single or Dual-Radio Operation

The 1242AG access poin t sup por ts si mul tane ou s r adio o pera tio n us ing a 2.4-G Hz 80 2.1 1g ra dio an d a 5-GHz 802.11a radio. The 1242G access point supports a single 2.4-GHz 802.11g radio. Each radio uses dual-diversity integrated antennas.

The 5-GHz rad io i ncor por ate s a n U nli cense d Nati onal I nform at ion I nfrast r uctu re ( UNI I) radi o transceiver operating in the UNII 5-G Hz freq uency bands. Th e 802.1 1g radio is called Radio0 and the

802.11a radio is called Ra dio1 .

Antennas Supported

Table 1-1 l ist s th e s uppo rte d ac cess point ant ennas.

Table 1-1 Supported Antennas

Hardware Features

Ethernet Port

Gain

2.4-GHz Antennas

Diversity ceiling omnidirectional 2 Articulated omnidirectional 3.5 Articulated dipole 2.2 Diversity omnidirectional 4.5 Ceiling omnidirectio nal 5.2 Omnidirectional 6 Wall patch directional 6 Diversity patch directional 7 Mast mount omni dire ctio na l 5.2 Patch directional 9.5 Diversity pillar omnidirectiona l 5.2 Diversity patch directional 6.5 Patch directional 9 Yagi directional 10

The auto-sensing Ethernet port (see Figure 1-2) accepts an RJ-45 connector, linking the access point to your 10BASE-T or 100BASE-T Ethernet LAN. The access point can receive power through the Ethernet cable from a power injector, switch, or power patch pane l. Th e Eth ern et MAC address is print ed on th e label on the back of the access point (refer to the “Locating the Produc t Se ria l Num ber” sec tion o n

page xiii).

(dBi) 5-GHz Antennas

Gain (dBi)

Console Port

Note After completin g y our c onfigura tio n cha ng es, y ou mu st re move the seri al cabl e f rom th e acc ess po in t.

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The serial console po rt can be us ed to moni tor the ac cess poin t power-up sequence s using a ter minal emulator program. The port is located on the end of the unit (see Figure 1-2). Use an RJ-45 to DB-9 serial cable to connec t yo ur c omput er’s COM port to t he ac cess po int ’s serial console port . (Ref e r to

Appendix E, “Conso le Cable Pinout s,” fo r a descriptio n of the console por t pinouts.) Assign the

following port settings to a terminal emulator to open the management system pages: 9600 baud, 8 data bits, No parity, 1 stop bit, a nd no fl ow cont rol.

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

1-5

Hardware Features

LEDs

Power Sources

Chapter 1 Overview

The access point has three LEDs to indicat e Ethernet acti vity, radio activity , and statu s indications (refe r to the “Checking the Ligh tweight Access Point LEDs” se ction on page 3-2 or the “Checking the

Lightweight Access Point LEDs” section on page 4-3 for additional information). Figure 1-2 shows the

location of the LEDs.

• The Status LED provid es gene ra l op er ating st atu s a nd err or indic ati on s.

• The Ethernet LED sign als Ethern et tra ffic on the wired Ethern et LAN and pr ovides Ethe rnet error

indications.

• The Radio LED signals that wireless packets are being transmitted or received over the radio

interface and provides radio e rror indi cations.

The access point can receive power from an external power module or from inline power using the Ethernet cable. The access point supports the IEEE 802.3af inline power standard and Cisco CDP Power Negotiation. Using inline power, you do not need to run a power cord to th e access point because power is supplied over the Ethernet cable.

Warning

Caution Be careful when handling the access po int; the botto m plate might be ho t.

This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

Statement 353

The access poin t sup por ts t he f ol lowing power source s:

• Power module

• Inline power:

–

Cisco Aironet Power Injector (AIR-PWRINJ3 or AIR-PWRINJ-FIB)

–

An inline power capable swi tch, s uch a s th e Cisc o C ataly st 35 50 PWR X L, 3 560- 48PS, 3570-48PS, 4500 with 802.3A F PoE module, or the 650 0 with 802.3A F PoE module

–

Other inline power swi tc hes sup port ing th e IE EE 8 02.3a f inlin e power stan da rd

Note Some switches and patch pan els m ight not provide eno ugh power to ope rate t he a cce ss point w it h bot h

2.4-GHz and 5-GHz radios. At power-up, if the access point is unable to determine that the power source can supply sufficient power, the access point automatically deactivates both radios to prevent an over-current condition. The access poi nt also activates a Status LED low power error indicat ion and creates an error log entry (refer to the “Checking the Lightweight Access Point LEDs” sec tion on

page 3-2 and the “Checking Basic Settings” section on page 3-3).

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Chapter 1 Overview

UL 2043 Certification

The access point has ad equate fire resistance and low smoke-produci ng charac teri stics suitab le for operation in a building's environmental air space, such as above suspended ceilings, in accordance with Section 300-22(c) of the NEC, and with Sec tions 2- 128, 12-0 10(3) and 12- 100 of the Canadian Electrical Code, Part 1, C 22. 1.

Caution Only the fiber-optic power injector (AIR-PWRINJ-FIB) has been tested to UL 2043 fo r operat ion in a

building’s environmental air space; the AIR- PWRINJ 3 power inj ect or a nd the p ower modu le ar e not tested to UL 2043 and should not be placed in a building’s environmental air space, such as above suspended ceilings.

Anti-Theft Features

There are three methods of securing the access point:

• Security cable keyhole—You can use the security cable slot (see Figure 1-3) to secure the access

• Security hasp—When you mount the access point on a wall or ceiling using the mounting plate and

Hardware Features

point using a standard securi ty cable , like those use d on laptop computers (r efer to the “Using a

Security Cable” section on page 2-17).

the security hasp, you can lock the access point to the plate with a padlock (see Figure 1-4). Compatible padlocks ar e Master Loc k models 12 0T and 121 T or equivalent.

Figure 1-4 Access Point with Security Hasp and Padlock

2.4 GHz LEFT

2.4 GHz RIGHT / PRIMARY

1 Security hasp 2 Security padlock

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1-7

Network Examples with Autonomous Access Points

• Cable security bracket—The cable security bracket (see Figure 1-5) attaches to the mounting plate

and covers the consol e port , Et hern et por t, p ower p ort, and t he m ode button to prevent the installation or removal of the cables or the act i vation of the mode butto n. The cable secur ity bra cket is user removable pr ior to at tac hin g the m oun tin g p lat e t o a c eil ing or wall .

Figure 1-5 Access Point with Mounting Plate and Cable Security Bracket

Chapter 1 Overview

STATUS

2.4 GHz LEFT

RADIO

ETHERNET

48VDC

2.4 GHz RIGHT / PRIMARY

1 Mounting plate 3 Access point 2 Cable security bracket

Network Examples with Autonomous Access Points

This section describes the autono mous a ccess p oint’s role in three common wireless network configurations. The au tonomous a ccess point ’s default configuration is as a root unit co nnec ted to a wired LAN or as the central unit in an all-wireless network.

The autonomous 1240AG series access point supports th ese opera ting wir eless modes:

• Root access point—Connected to a wired LAN and supports wireless clients.

• Repeater access point—Not connected to a wired LAN, associates to a root access point, and

supports wireless clients

• Workgroup bridge—Not connected to a wired LAN, associates to a root access point or bridge, and

supports wired network devices.

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• Root bridge—Conne cted t o a w ired LA N a nd sup por ts no n-r oo t br idge s and wi reless cli ent s.

• Non-root bridge — Not co nne cte d t o a wir ed LAN, a ssoci ates to a r oot bri dg e, su ppo rts w ire les s

clients, and supports wired clients.

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Chapter 1 Overview

Root Access Point on a Wired LAN

An autonomous access point connected directly to a wired LAN provides a connection point for wireless users. If more th an o ne auto nomo us acce ss point i s conn ected to th e LAN, user s can r oam fro m one a rea of a facility to another without losing their connect ion to the netw ork. As users mov e out of range of one access point, they automatically connect to the network (associate) through another access point. The roaming process is seamless and transparent to the user. Figure 1-6 shows access points acting as root units on a wired LAN.

Figure 1-6 Access Points as Root Units on a Wired LAN

Network Examples with Autonomous Access Points

Access point

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1-9

Network Examples with Autonomous Access Points

Repeater Unit that Extends Wireless Range

An autonomous access po int can be co nfigured as a stand- alone re peater to extend the ran ge of your infrastructure o r to ove rcome an obstac le that bloc ks radio com munication. The repeater fo rwards tr aff ic between wireless users and th e wir ed LAN by sending packets to either anoth er re peater or to an access point connected to the wired LAN. The data is sent through the route that provides the best performance for the client. Figu re 1- 7 shows an autonomous access point acting as a repeater. Consult the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on set ting up an ac cess point as a repeater.

Note Non-Cisco client devices might have difficulty comm unic ating wi th r epea ter ac cess points.

Figure 1-7 Access Point as Repeater

Chapter 1 Overview

Access point Repeater

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Chapter 1 Overview

Central Unit in an All-Wireless Network

In an all-wireless network, an autonomous access point acts as a stand-alone root unit. The autonomous access point is not attached to a wired LAN; it functions as a hub linking all stations together . The acce ss point serves as the focal point for comm unication s, incr easing the commu nicat ion range of w ireless users. Figure 1-8 shows an autonomous access point in an all-wireless network.

Figure 1-8 Access Point as Central Unit in All-Wireless Network

Access point

Network Examples with Autonomous Access Points

Bridge Network with Wireless Clients

The access po int sup por ts root b ridg e and non- ro ot b ridge role s u sed to int erco nne ct a re m ote LAN to the main LAN (see Figure 1-9). The bridge units can also support wireless clients.

Figure 1-9 Root Bridge and Non-root Bridge with Clients

Root bridge Non-root bridge

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1-11

Network Examples with Autonomous Access Points

Point-to-Point Bridge Configuration

In a point-to-point bri dge configur ation , two bri dges int erco nnec t two L AN net works u sing a wi reless communication l ink (see Figu re 1-10). The bridge connect ed to the mai n LAN ne twork is classified as a root bridge and the othe r bridge is cl assified as a non -root bri dge.

Figure 1-10 Point-to-Point Bridge Configuration

Chapter 1 Overview

Workgroup Bridge Network

The access point su ppo rts a work grou p br idge r ole to i nte rconn ec t re mot e Et hern et workst at ions to t he main LAN. The workgroup br idge can commun icate w ith an access poi nt (see Figure 1-11) or with a bridge (see Figu re 1 -12 ).

Figure 1-11 Workgroup Bridge Communicating with an Access Point

Root bridge Non-root bridge

Access point

Workgroup bridge

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1-12

Figure 1-12 Workgroup Bridge Communicating with a Bridge

Bridge Workgroup

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

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Chapter 1 Overview

Network Example with Lightweight Access Points

The lightweight access points support Layer 3 network operation. Lightweight access points and controllers in L aye r 3 c on figuratio ns use I P a ddr esses an d UD P p acket s, w hic h ca n be ro ut ed t hr ough large networks. Layer 3 o pera tio n is sca la ble an d re co mm ended by Ci sco.

This section illustrates a typical wireless network configuration containing lig htweight access points and a Cisco Wireless LAN Controlle r (se e Fi gure 1-13).

Figure 1-13 Typical Lightweight Access Point Network Configuration Example

LWAPP

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1-13

Network Example with Lightweight Access Points

Chapter 1 Overview

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CHA PTER

Installing the Access Point

This chapter describes the installation of the access point and includes these sections:

• Safety Informat ion, p age 2-2

• Warnings, page 2-2

• Unpacking the Access Po int, page 2-3

• Basic Installation Guidelines, page 2-4

• Controller Discovery Process for Lightweight Access Points , page 2- 4

• Mounting Overview, page 2-7

• Mounting on a Horizontal or Vertical Surface, page 2-9

• Mounting Below a Suspended Ceiling, page 2 -10

• Mounting Above a Suspended Ceiling, page 2-11

• Mounting Access Poi nt o n a Deskt op or Shel f, pa ge 2-14

• Cable Security B ra cket, page 2-14

• Attaching the Access Point to the Mounting Plate, page 2-16

• Securing the Access Point, page 2-17

• Connecting the Ethernet and Power Cables, page 2-20

• Powering Up the Access Point, page 2-22

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2-1

Safety Information

Follow the guidelines in this section to ensure proper operation and safe use of the access point.

FCC Safety Compliance Statement

The FCC with its action in ET Do cket 96-8 has adop ted a safe ty standar d for human exposur e to radio frequency (RF) electromagnetic energy emitted by FCC certified equipment. When used with approved Cisco Aironet antennas, Ci sco Airo net product s meet th e uncont rolled environmental limits fou nd in OET-65 and ANSI C95.1, 1991 . Proper installat ion of this ra dio acc ording to the instruc tions fou nd in this manual will result in user exposure that is substantially below the FCC recommended limits.

General Safety Guidelines

Do not hold any c om ponent co ntain in g a radi o so th at th e an ten na is ver y c lose t o or t ou chin g a ny exposed parts of the body, especially the face or eyes, while transmitting.

Chapter 2 Installing the Access Point

Warnings

Warning

Translated versions of the following safety warnings are provided in Appendix A, “Translated Safe ty

Warnings.”

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. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

Statement 1071

SAVE THESE INSTRUCTIONS

Read the installation instructions before you connect the system to its power source.

This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 20A

Statement 353

Statement 1005

Statement 1004

2-2

Warning

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

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.

Statement 245B

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Chapter 2 Installing the Access Point

Unpacking the Access Point

Warning

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

Unpacking the Access Point

Follow these steps to unpack the access point:

Step 1 Open the shipping container and carefully remove the contents. Step 2 Return all pack i ng ma ter ials to the sh ipping c onta iner a nd save it. Step 3 Ensure that all items listed in the “Package Contents” section are included in the shipment. Check each

item for damage. If any item is damage d or missin g, notif y your autho rized Cisc o sales repre sentat ive.

Package Contents

Each access point pack age co ntain s the foll owing items:

• Cisco Aironet 1240AG Series A ccess Po int or C isco Airon et 1 240 AG Series Ligh twei ght Access

Point

• Cisco Aironet 1240AG Series Power Mo dule ( universal power modul e)– opti onal

• Mounting hardware kit

Statement 332

–

One mounting plate with cable security bracket

–

Two suspended ceiling T-rail clips, spacers (accommodates standard and recessed T-rails), and nuts.

–

One security hasp

–

Two 6 x 32 x 1/2 in. pan head Phillips machine screws

–

Four 8 x 18 x 3/4 in. pan head Phillips sheet metal screws

–

Four #8 plastic wall anch ors

–

One 10 x 24 nu t (f or gr oun d s tud on mou nt ing brac ket)

–

Four rubber foot p ads

–

Two cable tie wraps

• Product quick start gui de

• Product translated safety warnings document

• Cisco product registration an d Cisco docum entati on feedbac k card s

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2-3

Basic Installation Guidelines

Because the ac cess po int i s a ra dio d evice, i t is susce pti ble to i nter fere nce tha t c an red uc e t hro ughput and range. Follow these basic guidelines to ensure the best possible performance:

• Ensure that a site survey has been performed to determine the optimum placement of access points.

• For lightweight access po ints , chec k the lat est rel ease note s to ensure th at you r co ntro ller sof t ware

version supports the access points to be installed. You can find the controller release notes by selecting your contr oller un der Wireless LAN Controllers at this URL:

http://www.cisco.com/en/US/products/hw/wireless/tsd_produ cts_supp ort_cat egory_home.html

• Ensure that access points are not mounted closer than 20 cm (7.9 in) from

• Do not mount the access point within 3 feet of metal obs tructions.

• Install the access point away from microwave ovens. Microwave ovens operate on the same

frequency as the access point and can cause signal interference.

• Do not mount the ac cess point out side o f buildings.

• Do not mount the a cce ss poi nts on building peri meter wall s un less outside coverage i s desi red.

Chapter 2 Installing the Access Point

the body of all persons

Controller Discovery Process for Lightweight Access Points

The lightweight access point supports these controller discovery processes:

• DHCP server discovery—Uses DHCP Option 43 to provide controller IP addresses to the access

points. Cisco switches support a DHCP server option. For additional information, refer to the

“Configuring DHCP Option 43 fo r Lightwe ight Acces s Points” sec tion on page G-1.

• DNS server discovery—The access poi nt uses the name CISCO-LWAPP-CONTROLLER.<local

domain> to discover the cont roll er IP addr ess es from a DN S ser ver. Where <local domain> is the

access point doma in n am e.

• Locally stored contr oller IP add resses—If the ac cess point was pre viousl y associated to a controller ,

the IP addresses of the primary, secondary, and tertiary controllers are stored in the access point non-volatile memory. The process of storing controller IP addresses in access points for later deployment is cal led pri ming the a cce ss poi nt. For a ddit iona l in for ma tion, re fer t o th e “P r iming

Lightweight Access Points Prior to Deployment” sec tion on page F-1.

Yo u can also ma nuall y configure co ntrolle r informa tion usin g CLI comm ands on new (out-of-the-bo x) access points that are not connected to a cont roller . For ad ditional inform ation refer to the “Manually Configuring Con troll er I nfo rmat ion Usi ng the A cce ss Po int CL I” s ectio n on

page 4-7.

Cisco recommends that you configure a DHC P server with Option 43 to provide t he contr oller IP addresses to your access points. Cisco switches provide a DHCP server option that is typically used for this purpose.

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Chapter 2 Installing the Access Point

Deploying the Access Points on the Wireless Network

Prior to beginning t he a ct ual acc ess po int de ployme nt, p erfor m thes e tasks :

• Ensure that a site survey has been preformed.

• Ensure that your network i nfrastr ucture devices are opera tional an d prope rly configured.

• For lightweight access points, perform these tasks:

–

Ensure that your cont rollers ar e connec ted to swit ch trunk ports.

–

Ensure that your switch is co nfigured wit h untagge d access por ts for co nnectin g your acce ss points.

–

Ensure that a DHCP server with Option 43 configured is reac hable by your acc ess points .

To deploy your access points, follow these steps:

Step 1 Obtain the access point location map created during your building site survey. Step 2 Review the access point locations and identify the specific mounting methods required for each access

point location.

Step 3 For each access point perform these steps:

a. For lightweight access points, record the access point MAC address on the access point location

map. When you hav e completed the acce ss point deployment, r eturn the access point MA C addre sses and the access po int loc ation s o n t h e ac c ess po in t loc ati on map s or f loor pla ns to y our net work planner or manage r. The network op er ator s ca n use t he M AC address a nd l ocati on inf orm ati on to create maps for precise wireless system management.

b. At tach your acce ss point to the mounting pla te (see the “Attaching the Access Point to the Mounting

Plate” section on page 2 -16).

c. Mount the access point at the in dicat ed d estina ti on usi ng the sp ec ified mo unti ng me tho d. For

specific mounting instructions, see these sections:

–

Horizontal or vertical surface, such as a ceiling or wall (see the “Mounting on a Horizontal or

Vertical Surface” section on page 2-9).

–

Below a suspended ceiling (see the “Mounting Below a Suspended Ceiling” sect ion on

page 2-10).

–

Above a suspended ceiling (see the “Mounting Above a Suspended Ceiling” section on

page 2-11).

–

On a desktop or shelf (see the “Mounting Access Point on a Desktop or Shelf” section on

page 2-14.

d. Optionally secure the access point using a padlock or security cable (see the “Securing the Access

Point” section on page 2-17).

e. Connect the access point cables (Ethernet, optional power, optional antennas). For instructions see

the “Connecting the Ethe rnet and Power Cab les” sec tion o n page 2-20.

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f. On power up, verify that the access point is associated to a controller and operating normally. For

additional information, refer to the “Checking the Lightweight Access Point LEDs” se ction on

page 3-2 or the “Checking t he L ightw eig ht Ac ce ss Poi nt L EDs” sec tion on page 4-3.

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

2-5

Deploying the Access Points on the Wireless Network

Step 4 For lightweight access points, after your access points are deployed, ensure that your controller is not

configured as a master controller. A master controller should only be used for configuring access points and not in a wo rking net work.

Access Point Layout and Connectors

Figure 2-1 illustrates the 2.4-GHz connector end of the access point.

Figure 2-1 Access Point 2.4-GHz Connector End

Chapter 2 Installing the Access Point

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

6 7 8 91 5432

Figure 2-2 illustrates the 5-GHz connector end of the access point.

Figure 2-2 Access Point 5-GHz Connector End

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5 GHz ANTENNA w/RP-TNC

LEFT

1 5-GHz antenna connector (left) 3 Security key slot ) 2 5-GHz antenna connector (right/primary

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

RIGHT / PRIMARY

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Chapter 2 Installing the Access Point

Mounting Overview

Yo u can mou nt the acc ess point on any of the fo llowing surface s:

• Horizontal or vertical flat surfaces, such as walls or ceilings

• Suspended ceilings (above and below)

Caution The access point, the antennas, and the power source (power injector or power module) are not designed

for outdoor use and mu st be loca ted in a n ind oor environment.

The access point ships with a detachable mounting plate and the necessary mounting hardware. Because it is detachable, you can use the mounting plate as a template to mark the positions of the mounting holes for your installation. You then install the mounting plate and attach the access point when you are ready.

Refer to Figure 2-3 to locate the various mounting holes for the method you intend to use.

Figure 2-3 Mounting Plate

Mounting Overview

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1 Key hole clips 4 Ceiling or wall mounting holes 2 Cable access openings 5 Ground connection 3 Locking detent 6 Cable tie point

Caution Only the fiber-op tic power injector (AIR-PWRINJ-FIB) has been tested to UL 2043 for operation in a

buil di ng’s env iro nm ent al air spa ce ; n o ot he r p ow er inj ect or s o r po wer modules have been tested to UL 2043 and they sh ould not be plac ed in a building’s en vi ronme ntal air s pac e, su ch as abo v e susp ended ceilin gs.

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Mounting Overview

Note The access point pro vides adequa te f ir e res istan ce and lo w smok e- produ cing ch aracte rist ics s uitable fo r

Note When mounting the access point in a building’s environmental air space, you must use Ethernet cable

Chapter 2 Installing the Access Point

operation in a building's environmental air space (such as above suspended ceilings) in accordance with Section 300-22(C) of the National Electrical Code (NEC).

suitable for operation in environmental air space in accordance with Section 300-22(C) of the National Electrical Code (NEC).

A mounting hardware kit is provided that contains the hardware and fasteners necessary to mount the access point. Refer to the Table 2-1 to identify the materials you need to mount your access point, then go to the section containi ng the spec ific mounting proc edur e.

Table 2-1 Material Needed to Mount Access Point

Mounting Method Materials Required In Kit

Horizontal or vertical surface Four #8 x 1 in. (25.4 mm) screws

Four wall anchors 3/16 in. (4.7 mm) or 3/32 in. (2.3 mm) dr ill bit Drill Standard screwdriver

Suspended ceiling Two T-rail clips with studs

Two plastic spacers Two 1/4–20 Keps nuts with built-in washers Standard screwdriver, wrench, or pliers

Yes Yes No No No

Yes Yes Yes No

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Chapter 2 Installing the Access Point

Mounting on a Horizontal or Vertical Surface

Follow these steps to mount the access point on a horizontal or vertical surface.

Step 1 Use the mounting plate as a template to mark the locations of the four mounting holes.

Note When mounting on a vertical surface, position the cable security bracket on the bottom.

Step 2 Drill one of the following sized holes at the locations you marked:

• 3/16 in. (4.7 m m) if you are u sing wall anc ho rs

• 1/8 in. (6.3 mm) if you are no t using wall anchor s Step 3 Install the anchors into the wall if you are using them. Otherwise, go to Step 4. Step 4 Secure the mounting plate to the surface using the #8 fasteners.

Note On a vertical surface, mount the plate with the security hasp slot on the top.

Step 5 Attach the access poin t to the mo unting pla te.

Note For a more secure installation you should attach the mounting plate to a stud or major structural

member and use the appropriate fasteners.

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Mounting Below a Suspended Ceiling

Note To comply with NEC c ode , a #1 0-24 gro und ing lu g is pr ovided o n the mo unti ng pla te.

Yo u should review Figure 2-4 be fore beginning the mounting pro cess.

Figure 2-4 T-Rail Mounting Parts

Chapter 2 Installing the Access Point

2-10

1 Suspended ceiling T-rail 4 mounting plate 2 T-rail clips 5 Keps nut (contains an attached lock washer)

Plastic spacer (used with recessed ceiling

tiles)

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Chapter 2 Installing the Access Point

Follow these steps to mount your access point on a suspende d ceilin g:

Step 1 Decide where you wan t to mo unt th e acc ess po in t. Step 2 Attach two T-rail clips to the suspended ceiling T-rail. Step 3 Use the mounting plate to adjust the distance between the T-rail clips so that they align with the holes in

the mounting plate.

Step 4 Use a standard screwdriver to tighten the T-rail clip studs in place on the suspended ceiling T-rail. Do

not overtighten.

Step 5 If using recessed ceiling tiles, install a plastic spacer on each T-rail clip stud. The spacer’s legs should

contact the suspended ceiling T-rail.

Step 6 Attach the mounting plate to the T-rail clip studs and start a Keps nut on each stud. Step 7 Use a wrench or plier s to tighte n the Keps nuts. Do no t overtighten. Step 8 To attach the access point to the mounting plate, see the “Attaching the Access Point to the Mounting

Plate” section on page 2 -16.

Step 9 If you need additional security, refer to the “Securing the Access Point” section on page 2-17 for

additional information.

Mounting Above a Suspended Ceiling

Step 10 Verify the access point is operating (see the “Powering Up the Access Point” section on page 2-22).

Mounting Above a Suspended Ceiling

The access point mounting plate is designed to be integrated into the T-bar grid above the tiles of a suspended ceiling. Using a T-bar box hanger and bracket mounting clip (not supplied) such as the Erico 512A and BHC, you orient the access point antenna just above the top surface of a standard ceiling tile. You may need to modify a thicker tile to allow room for the antenna.

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2-11

Mounting Above a Suspended Ceiling

It may be helpful to refer to Figure 2- 5 befor e proceedi ng.

Figure 2-5 Above Suspended Ceiling Parts

Chapter 2 Installing the Access Point

ARY

Hz RIGHT / PRIM

2.4 G

8 4

E N

E H

T E

E L

Hz LEFT

2.4 G

O M

ETHERNET

RAD TATUS

135583

Suspended ceiling T-rail

T-rail clip

Height adjustment screw

T-bar box hanger

Bracket mounting clip

Caution Only the fiber-optic power injector (AIR-PWRINJ-FIB) has been tested to UL 2043 for operation in a

buil din g’ s en vir onm enta l air spac e; n o ot her p ow er in jec tors or po wer modules have been tested to UL 2043 and they sh ould not be plac ed in a building’s en vi ronme ntal air s pac e, su ch as abo v e susp ended ceilin gs.

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Chapter 2 Installing the Access Point

The bracket moun tin g c l ip r e quire s th e use o f two m oun tin g c li p h ol es on t he mo u ntin g plat e ( see

Figure 2-6).

Figure 2-6 Mounting Plate Holes

Mounting Above a Suspended Ceiling

1 Bracket mounting clip holes

Follow these steps to mount the access point above a suspended ceiling.

Step 1 Insert the bracket mounting clip’s tab into the large hole on the access point mounting plate. Step 2 Place the clip over the T -bar box hanger and secure it to the access point mounting plate (see Figure 2-7)

with the 1/4-20 fas tene r (su ppl ie d wi th the T-bar hanger).

Figure 2-7 Access Point Mounting Plate

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Note The illustration shows the access point mounting plate mounted perpendicular to the T-bar box

hanger. You can also mount the brac ket parall el to the T-bar box hanger.

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Mounting Access Point on a Desktop or Shelf

Step 3 Determine the location in the ceiling where you will mount the access point and remove an adjacent

ceiling tile.

Step 4 Orient the access po int 2 -GHz and 5-GH z ante nnas so that the y ar e po inting do wn when m ounted on th e

T-bar Box hanger.

Step 5 Adjust the height of th e T-bar box hanger to provide antenna clear ance ab ove the ceiling tile usi ng the

height adjusting scr ews (refer to Figure 2-5).

Step 6 Attach the T-rail clips on each end of the T-bar box hanger to the ceiling grid T-rails. Make sure the clips

are securely attached to the T-rails.

Step 7 Connect a drop wir e to a building struc tural elem ent and th rough the hole provided in the bracket

mounting clip. This additional support is required in order to comply with the U.S. National Electrical Safety Code.

Step 8 To attach the access point to the mounting plate, see the “Attaching the Access Point to the Mounting

Plate” section on page 2 -16.

Step 9 If you need additional security, see the “Securing the Access Point” section on page 2-17 for additional

information.

Step 10 Verify the access point is operating before replacing the ceiling tile (see the “Powering Up the Access

Point” section on page 2-22).

Chapter 2 Installing the Access Point

Mounting Access Point on a Desktop or Shelf

When placing the access point on a desktop of shelf, the use of the mounting plate is optional. The mounting plate can be u sed to shie ld t he u s er f rom th e hot bott om surfac e of th e a cce ss point wh en movement of the access point may be necessary. The access point is shipped with four rubber pads that you can place on the bottom of the access point or the mounting plate to help prevent sliding or scratching the surfa ce o f your d eskto p or she lf. For i nfo rmat ion on conn ec ti ng t he a cce ss p oint c a bles, see the “Connecting the Ethernet and Power Cables” section on page 2-20.

Cable Security Bracket

The access point mounting plate has an attached cable security bracket that covers the console port, Ethernet port, pow er port, an d the mode b utto n to pre v en t the installa tion or remo val of the cables or the activat ion of the mode b utton. If d esired, the cable secur ity brack et can be remov ed prior t o attachin g the mounting plate to a ce ilin g o r wall.

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Chapter 2 Installing the Access Point

Figure 2-8 Access Point with Mounting Plate and Cable Security Bracket

Cable Security Bracket

STATUS

2.4 GHz LEFT

RADIO

ETHERNET

48VDC

2.4 GHz RIGHT / PRIMARY

1 Mounting plate 3 Access point 2 Cable security bracket

Removing the Cable Security Bracket

The cable securi ty br acket (s ee Figure 2-9) is designed to help prevent someone from using the Mode button to reset the access point to default values or from using the serial console cable to access the access point’s CLI interface or from removing the Ethernet cable. If this security protection is not considered necessary, you can remove the cable security bracket.

Figure 2-9 Cable Security Bracket Screws

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1 Cable security bracket 3 Mounting plate 2 Cable security bracket screws

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Chapter 2 Installing the Access Point

Attaching the Access Point to the Mounting Plate

To remove the cable security bracket from the mounting plate, follow these instructions:

Step 1 Position the mounting plate with the cable security bracket pointing down (see Figure 2-9). Step 2 Remove the two screws that attach the bracket to the mounting plate using a phillips screw driver.

Attaching the Access Point to the Mounting Plate

Follow these steps to attach the access point to the mounting plate:

Step 1 If your mounting plate has the cable security bracket, follow these steps:

a. Connect the Ethernet cable to the access point Ethernet port (see the “Connecting the Et h ern et a nd

Power Cables” section on page 2-20).

b. If not using on-line power, connect the power module ’s power cable to the ac cess point 48- VDC

connector.

c. Carefully feed the Ethernet and power cables through the cable notch on the cable security bracket

and slide the cables to the r ight o r le ft to sec ure th e cable s (see the “ Cable Secur ity Br acket” sec tion

on page 2-14).

Note If your access point is connected to Ethernet in-line power, do not connect the local power

module to the access point. Using two power sources on the access point might cause the ac cess point to shut down to protec t int erna l co mp one nts a nd m ight c au se th e sw itch to shut d own the port to which the a cce ss point is conn ect ed. If your ac cess po int shu t s down, you m ust r emove all power and reconnect only a single power source.

Step 2 Line up the four keyhole clips on the mounting plate with the large ends of the keyhole-shaped holes on

the access point.

Note The keyhole clips on each side of the mounting plate are offset and can only be positioned in one

direction onto the access point.

Step 3 Insert the mounting plate clips into the keyhole shaped holes on the access point. Step 4 Slide the access point towards the cable security bracket end of the mounting bracket while exerting

slight pressure to force the acc ess point an d mounti ng plate toge ther. You will hear a slight click when the locking detents contact the access point and locks it into place.

Step 5 Attach and adjust the antenna(s) or antenna cables to the access point antenna connectors.

2-16

Note The 5-GHz antennas and antenna cables have a blue dot or blue label. Connect only antennas or

antenna cables with blue dots or labels to the access point’s 5-GHz antenna connectors.

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Chapter 2 Installing the Access Point

Step 6 If your mount ing pla te does not have the c able secu ri ty b racke t, f ollow these ste ps:

a. Co nn ec t a CAT 5 Ethernet cable to the acces s po i n t E th ern et port (see the “Connecting the Ethernet

and Power Cables” secti on on pa ge 2-20).

b. If using local power, insert the power module’s power cable into the access point’s 48-VDC power

port.

Note If your access point is connected to in-lin e power , do not connect the po wer module to the access

point. Using two power sources on the access point might cause the ac cess point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is con ne cted. If your a ccess p oint s huts down, you must re move all p ower and reconnect only a si ngl e power sour c e.

Securing the Access Point

There are two ways to secure yo ur access po int:

• Using a security cable

• Securing the access point to the mounting plate

Using a Security Cable

You can secure the access point by installing a standard security cable (such as the Kensington Notebook MicroSaver, model number 64068) into the access point security cable slot (see Figure 2-2). The security cable can be used with any of the mounting methods described in this guide.

Follow these steps to install the security cable.

Step 1 Loop the security ca ble arou nd a nearby imm ovable object. Step 2 Insert the key into the security cable lock. Step 3 Insert the security cable latch into the security key slot on the access point. Step 4 Rotate the key right or left to secure the security cable lock to the access point. Step 5 Remove the key from security cable lock.

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Securing the Access Point

Securing the Access Point to the Mounting Plate

The security hasp enables you to use a padlock to secure the access point to the mounting plate. Known compatible padl ocks a re M a ster Lock m ode ls 1 20T o r 121 T.

To install the security hasp, follow these steps:

Step 1 Insert the security hasp’s key pin (see Figure 2-10) into the key slot on the access poin t (s ee Figure 2-2)

and rotate counterc lockwis e towards the mounti ng plate.

Figure 2-10 Security Hasp

2.4 GHz LEFT

2.4 GHz RIGHT / PRIMARY

Chapter 2 Installing the Access Point

135491

Step 2

1 Key pi n 4 Padlock 2 Security hasp 5 5-GHz access point end 3 Mounting plate security slot 6 Mounting plate

Push the security hasp’s padlock flange through the mounting plate’s security slot.

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Chapter 2 Installing the Access Point

Step 3 Place your padlock (user supplied) th rough the padl ock hole in the security hasp’s padlock flange

(see Figure 2-11).

Figure 2-11 Security Hasp and Padlock

1 Security hasp 2 Pad l oc k

Securing the Access Point

135442

2.4 GHz LEFT

2.4 GHz RIGHT / PRIMARY

Step 4

Push the padlock i nto th e re cess ed op en ing betw een the a cce ss poi nt an d th e mo unti ng pl at e.

Note When attaching the mounting plate to a vertical surface, place the security cable bracket end of the

mounting plate on the bot tom.

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2-19

Connecting the Ethernet and Power Cables

The access point receives power through the Ethernet cable or an external power module. Figure 2-12 shows the power options for the access point.

Figure 2-12 Access Point Power Options

Option 1 Option 2

Switch with

inline power

S Y S

RPS

S TA T

DUP

SP E ED

10Base-T / 100Base-TX

MODE

10 11

Catalyst 2950

S ERIE

100Base-FX

Chapter 2 Installing the Access Point

Switch without

inline power

SYST

RP S

STAT

UTI L

D UP

S PEED

10Base-T / 100Base-TX

MO DE

Catalyst 2950

SERIES

100Base-FX

Power injector

AP/

NETWORK

DGE

Power

cord

Universal

power supply

Warning

Access Point

This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

Statement 353

Option 3

Caution This product and all int erc onn ecte d eq uip ment m ust be i nsta lled i ndoors w ith in th e s am e buildi ng,

including the associated LAN connections (as defined by Environment A of the IEEE 802.3af standard).

The access po int power op tio ns:

• Option 1—Switches with sufficient inline power:

135476

2-20

–

An inline power capable swi tch, s uch a s th e Cisc o C ataly st 35 50 PWR X L, 3 560- 48PS, 3750-48PS, 4500 with 802.3A F PoE module, or the 650 0 with 802.3A F PoE module

–

Other inline power swi tc hes sup port ing th e IE EE 8 02.3a f inlin e power stan da rd

• Option 2—Switches without sufficient inline power can use the power injector:

–

Cisco Aironet Power Injector (AIR-PWRINJ3 or AIR-PWRINJ-FIB)

• Option 3—Local power using th e power module

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Chapter 2 Installing the Access Point

Connecting the Ethernet and Power Cables

Note Some older switches and patc h panels migh t not provide enou gh power to operate th e acces s point. At

power-up, if the access point is unable to determine that the power source can supply sufficient power, the access point automatically deactivates both radios to prevent an over-current condition. The access point Status LED t urn s am ber a nd an er ror log e ntry is c r eat ed (refe r to th e “ Ch eckin g th e L ightw ei ght

Access Point LEDs” section on page 3-2 or the “Checking the Lightweight Access Point LEDs” section on page 4-3).

Connecting to an Ethernet Network with an Inline Power Source

Caution Be careful when handling the access po int; the botto m plate might be ho t.

Note If your access point is connected to in-line power, do not connect th e power module to the access point.

Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access po int is connected. If your access point shuts down, you must remove all power and reconnect onl y a single power source.

Follow these steps to connect the access point to the Ethernet LAN when you have an inline power source:

Step 1 Connect a Category 5 Etherne t cable t o the RJ-45 Ethe rnet connec tor label ed Ethernet on the access

point (see Figure 2-13).

Figure 2-13 Ethernet and Power Ports

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

1 2

1 Ethernet port 2 48 VDC power port

Step 2

Connect the other end of t he Ether net cable to one of the following:

• A switch with inline power (see the “Connecting the Ethernet and Power Cables” section on

page 2-20).

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• The end of a Cisco Airo net power injec tor l abe led To A P/Bridge. Connect the other end labe led To

Network to your 10/100 Ethern et LAN.

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Powering Up the Access Point

Connecting to an Ethernet Network with Local Power

Caution Be careful when handling the access po int; the botto m plate might be ho t.

Note If your access point is connected to in-line power, do not connect th e power module to the access point.

Follow these steps to connect the access point to an Ethernet LAN when you are using a local power source:

Step 1 Connect a Category 5 Etherne t cable t o the RJ-45 Ethe rnet connec tor label ed Ethernet on the access

point (see Figure 2-13).

Step 2 Connect the power module output connector to the access point’s 48-VDC power port (see Figure 2-13).

Chapter 2 Installing the Access Point

Step 3 Plug the other end of the Et hernet cab le into an un powered Ethernet port on your LA N network. Step 4 Plug the other end of the power module in to an approved 100- to 240- VAC outlet.

For information on securing your access point, see the “Securing the Access Point” section on page 2-17.

Powering Up the Access Point

When power is applied to t he a cce ss poin t, i t begins a rou tin e p ower-up sequen ce t hat you can m onit or by observing the three LEDs on the end of the access point. After you obser ve all three LED s turnin g green to indicate the starting of the operati ng system , the Status L ED blinks gre en signi fying tha t the access point is o pe ratio nal. Af ter a su cc es sful power-up sequenc e, th e Status LE D t ur ns light g reen to signify that there are no client devices associated, or it turns blue to signify that there are client devices associated. Refer to the “Checking the Lightweight Access Point LE Ds” secti on on page 3 -2 or the

“Checking the Ligh tweight A ccess Poin t LEDs” sect ion on pag e 4-3 for LE D de sc ripti on s.

Caution Be careful when handling the access po int; the botto m plate might be ho t.

Note If your access point is connected to in-line power, do not connect th e power module to the access point.

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CHA PTER

Troubleshooting 1240AG Series Autonomous Access Points

This chapter provid es trou blesh oot ing pr oced ure s for b asic p roble ms wi th the 124 0AG series autonomous access point (A IR-AP1242 AG or AIR-AP1242G). For the most up-to-date, de tailed troubleshooting i nform a tion , re fe r t o th e Cisco Technical Suppor t a nd D oc ument at ion webs ite at the following URL:

http://www.cisco.com/en/US/products/hw/wireless/tsd_produ cts_supp ort_cat egory_home.html

Sections in this chapter include:

• Checking the Lightw eig ht Ac ce ss Poi nt L EDs, page 3-2

• Checking Basic Settings, pag e 3- 3

• Low Power Condition, page 3-5

• Running the Carrier Busy Test, page 3-13

• Running the Ping Test, page 3-14

• Resetting to the Default Configura tion, pag e 3-1 4

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• Reloading the Access Point Ima ge, page 3-16

• Obtaining the Access Point Image File, page 3-19

• Obtaining the TFT P Server Software , pa ge 3-20

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3-1

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Checking the Lightweight Access Point LEDs

If your access point is not working properly, check the Status, Ethernet, and Radio LEDs on the 2.4 GHz end of the unit. You can use the LED indications to quickly assess the unit’s status. Figure 3-1 shows the access point LEDs (for additional information refer to the Event Log using the access point browser interface).

Figure 3-1 Access Point LEDs

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

321

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

1 Ethernet LED 3 Status LED 2 Radio LED

The LED signals are li sted i nTable 3-1.

Table 3-1 LED Signals

Message type Ethernet LED Radio LED Status LED Meaning

Boot loader status Green Green Green DRAM memory test ok.

Off Blinking green Blue-green Initialize Flash file system. Off Green Pink Flash memory test ok. Green O ff Dark blue Ethernet test ok. Green Green Green Starting Cisco IOS.

Association status — — Light green Normal operating condition, but no wireless client

devices are associated with the unit.

— — Blue Norma l operat ing cond ition, at least one w ireless

client device i s ass oci a ted w it h t h e uni t .

Operating status Green — — Ethernet link is operational.

Blinking green — — Transmitting or receiving Ethernet packets. — Blinking green — Transmitting or receiving radio p ackets. — — Blinki ng

Software upgrade in progress

dark blue

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Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Table 3-1 LED Signals (continued)

Message type Ethernet LED Radio LED Status LED Meaning

Boot loader warnings Off Off Yell ow Ethernet link not operat ional.

Red Off Yellow Ethernet failure. Amber Off Yellow Configurat ion rec overy in progress

(Mode button pressed for 2 to 3 seconds).

Off Red Pink Image recovery

(Mode button pressed for 20 to 30 seconds)

Blinking green Blinking red Blinking

pink

Boot loader errors Red Red Red DRAM memory test failur e.

Off Red Blinking red

and blue

Off Amber Blinking red

and blue-green

Amber Off Blinking red

and yellow

Red Off Blinking red

and off

Amber Amber Blinking red

and off

Red Amber Blinking red

and off

Amber Amber Blinking red

and off

Cisco IOS errors Blinking

amber — Blinking amber — Maximum retries or buffer full occurred on the

Red Red Amber Software failure; try disconnecting and

— — Amber General warning, insu ff icient inline po wer ( see the

— — Transmit or receive Ethernet errors.

Image recovery in progress and Mode button is released.

Flash file system failure.

Environment variable (ENVAR) failure.

Bad MAC address.

Ethernet failure during image recovery.

Boot environment error.

No Cisco IOS image file.

Boot failure.

radio.

reconnecting unit power.

Low Power Condition section).

Checking Basic Settings

Mismatched basic settings are the most common causes of lost connectivity with wireless clients. If the access point does not co mmunic ate wit h clie nt devices, ch eck the fo llowing area s.

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Checking Basic Settings

Default IP Address Behavior

When you connect a 1240 series access point running Cisco IOS Release 12.3(7)JA or later software with a default configuration to your LA N, the acc ess point requ ests an IP address fr om your DHC P server and, if it does not receive an IP address, co ntinues to send requests indefinitel y.

Enabling the Radio Interfaces

In Cisco IOS Release 12.3( 7)JA or later, the access point radios are disabled by default, a nd the re is no default SSID. You must create an SSID and enable the radios before the access point wi ll all o w wireless associations from other devices. These cha nges to the defau lt configurat ion imp rove the security of newly installed access points. Refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on configuring the SSID.

To enable the radio interfaces, follow these instructions:

Step 1 Use your web-browser to acc ess your access point. Step 2 When the Summary Status page displays, click Network Interfaces > Radio0-802.11G and th e radio

status page displ ays.

Step 3 Click Settings and the radio settings pa ge di spla ys.

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Step 4 Click Enable in the Enable Radio field. Step 5 Click Apply. Step 6 Click Radio1-802.11A and the rad io st atus pa ge disp lays. Step 7 Repeat Steps 3 to 5. Step 8 Close your web-b rowser.

SSID

Note In Cisco IOS Rele ase 1 2.3(7 )JA or later, there is no d efaul t SSID . You must configure an SSID before

WEP Keys

Wireless clien ts attempting to associate with the a ccess point must use the same SSID as the ac cess point. If a client dev ice’s SSID does not match the SSID of an acce ss point in radio range, the clien t de vice will not associate.

client devices can associate to the access point.

The WEP key you use to transmit data must be set up exactly the sam e on your ac cess poin t and any wireless devices with which it assoc iate s. For exam ple, if y ou se t WE P Key 3 on your cli ent adap ter to 0987654321 and select it as the transmit key , you must also set WEP Key 3 on the access point to exactly the same value. The access point does not need to use Key 3 as its transmit key, however.

3-4

Refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on setting the access point’s WEP keys.

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Security Settings

Wireless clients atte mpting to authenticate with your acc ess point must support the same security options configured in the access point, such as EAP or LEAP, MAC address authentication, Message Integrity Check (MIC), WEP key hashi ng, a nd 802.1 X prot ocol versio ns.

If a wireless client is unab le to a uthe nt icat e w ith y our access point, contact the sy stem administrator for proper security settings in the client adapter and for the client adapter driver and firmware versions that are compatible with the access point settings.

Note The access point MAC address that displays on the Status page in the Aironet Client Utility (ACU) is

the MAC address for the access point radio. The MAC address for the access point Ethernet port is printed on the label on the back of the access point.

Low Power Condition

Warning

Note An 802.3af compliant switch (Cisco or non-Cisco) is capable of supplying sufficient power for full

Note If your access point is connected to in-line power, do not connect th e power module to the access point.

This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

The access point can be powered from the 48-VDC power module or from an in-line power source. The access point suppor ts t he I EEE 80 2.3 af p ower standa rd , Ci sco Pr e- Stand ard PoE pr otocol , and Cisco Intelligent Power Management for in-line power sources.

For full operation, the ac cess point (powered device) r equ ire s 1 2.9 5 W ( up to 1 5.4 W w ith 100 m CAT 5 Ethernet cable). When the access point is being used in a PoE configurati on, the power drawn from the power sourcing equipment (PSE), such as a switch or power injector, is higher by an amount dependent on the length of t he interc onnect ing cable .

The power module and Cisco Aironet power inject ors are capabl e of supplying the require d power for full operation, but some inline power sources are not capable of supplying sufficient power. Also, some high-power inline power sources, might not be able to provide up to 15.4 W of power to all ports at the same time.

operation.

Statement 353

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On power up, the access point is placed into low power mode (both radios ar e disabl ed), Cisco IO S software loads and runs, and power negotiation determines if sufficient power is available. If there is sufficient power then the radios are turned on; otherwise, the access point remains in low power mode with the radios disabled to prevent a possible over-current condition. In low power mode, the access

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Low Power Condition

point activates the Status LED low power error indication, displays a low power message on the browser and serial i nte rfa ce s, a nd cr ea te s an event lo g e ntr y ( see th e “ Che ckin g th e Lig htwe igh t Acc es s Po int

LEDs” section on page 3-2 and “Inli ne Power St atus Message s” se ctio n o n pag e 3-7).

Intelligent Power Management

The access po int re qu ire s 12 .9 5 W of power ( up to 1 5.4 W wi th 1 00 m CAT 5 Ethernet cable) for fu ll power operation with both radios, but only needs 6.3 W of power when opera ting in low power mode with both radios disabled. To help avoid an over-current condition with low power sources and to optimize power usage on Cisco swit ches, C isco developed Intellige nt Power Managem ent, whi ch use s Cisco Discovery Protocol (CDP) to allow powered devices (such as your access point) to negotiate with a Cisco switch for sufficient power.

The access point supports Intelligent Power Management and as a result of the power negotiations, the access point will either enter full power mode or remain in low power mode with the radios disabled.

Note Independent of the power negotiations, the access point hardware also uses the 802.3af classification

scheme to indicate the power required from the power source. However, the power source cannot report the power available to the access point unless the power source also supports Intelligent Power Management.

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Some Cisco switches that are capabl e of supplying sufficient power require a software upgrade to support Intelligen t Power Mana ge ment . If th e softwa re u pgr ad e is n ot desi red, y ou can co nfigure the access point to oper ate in pr e-sta ndard comp atibility mode and the acces s point aut omaticall y enter s full power mode if these Cisco switches are detected in the received CDP ID field.

When the access point determine s that suf f icient po wer is not a v ailable for full po wer ope ration, an err or message is logged and the Status LED turns amber to indicate low power mode (see the “Checking the

Lightweight Access Poi n t LE Ds” sect ion on pag e 3-2 and the “Inline Power Status Messages” section on page 3-7).

Tip If your switch is capable of supplying sufficient power for full operation but the access point remains in

low-power mode, your access point or your switch (or both) might be misconfigured (see Table 3-2 and

Table 3-3).

If your inline power source is not able to supply sufficient power for full operation, you should consider these options:

• Upgrade to a h ighe r-powered swi tch

• Use a Cisco Aironet power injector on the switch por t

• Use the 48-VDC power module to locally power the access point

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Inline Power Status Messages

These messages are logged on the console port by the access point to report the power condition:

• %CDP_PD-4-POWER_OK: Full Power - AC_ADAPTOR inline power source—This message

indicates the access point is usin g the power module and c an support ful l-power operation.

• %CDP_PD-4-POWER_OK: Full Power - NEGOTIATED inline power source—This message

indicates the access point is operating at fu ll power and has successfully negotiated for 12.95 W of power from a Cisco switch supporting Cisco Int elligent Power Managem ent.

• %CDP_PD-4-POWER_OK: Full Power - HIGH_POWER_CLASSIC inline power source—This

message indicates the access point is operating at full power because it has been configured for pre-standard compatibility mode and has detected a Cisco switch that does not support Intelligent Power Management but is able to supp ly su fficient power to the acc ess poi nt.

• %CDP_PD-4-POWER_ OK: Full Power - INJECT OR_CONFIGURED_ON_SOUR CE inline power

source—This message indicates the access point is operating at full power because it is connected to a Cisco switch that supports Intelligent Power Management and the switch has been configured with the power inline never command.

• %CDP_PD-4-POWER_OK: Full power - INJECTOR_CONFIGURED_ON_CURRENT_PORT

inline power source—This message indicates the access point is operating at full power because it has been configured to expect a p ower inj ec tor on thi s po rt.

Low Power Condition

• %CDP_PD-4-POWER_ OK: Full Po we r - INJE CT OR_DETE CTED_PD inline power source—This

message indicates the access point is operating at full power because it has detected a CDP packet from another Cisco powerable device (PD). The access point power is being supplied from a power injector or a non- Cisco p ower sourc e be cau se a Cisc o power sourc e doe s no t tra nsm it t his typ e of CDP packet.

• %CDP_PD-4-POWER_OK: Full Power - INJECTOR_DETECTED_MULTIPLE_MACS_ON_

HUB inline power source—This message indicates the access point is operating at full power because it has detected multiple Cisco devices. The access point power is being supplied from a power injector or a non-Cisco power source because a Cisc o power source does not fo rward CDP packets.

• %CDP_PD-4-POWER_OK: Full Power - NON_CISCO-NO_CDP_RECEIVED inline power

source—This message indicates the access point is operating at full power because it has not received any CDP packets within the timeout period. This condition indicates your access point is connected to a non-Cis co power source .

Note To prevent possible over-current conditions, the power source must be an

IEEE 802.3af

compliant power source or an IEC60950 compliant limited power source.

• %CDP_PD-2-POWER_LOW: All radios disabled - NEGOTIATED inline power source—This

message indicates the access point is in lo w power mode with all radios disabled because the Ci sco power source has indicated it is not capable of supplying sufficient power to the access point.

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Note A Cisco power injector might be required.

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Low Power Condition

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

• %CDP_PD-2-POWER_LOW: All radios disabled - LOW_POW ER_CLASSIC_NO_INJECTOR

_CONFIGURED <platform name> ( <MAC address>). —This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access point.

The< platform name> ind ica tes the CDP device detected by the acc ess poin t. Th e <MAC address> indicates the MAC address of the CDP device, typically, the switch port.

Note A Cisco power injector might be required.

Following the low power status message , two extra me ssages a re d ispl ayed on the con sol e po rt o r when using a Telnet session that identify the actions needed to resolve this low power problem:

–

Verify the required power injector is instal led o n th is p ort: <platform name> (<Ethernet port>). (where <platform name> indicates the CDP device detected by the access point and

<Ethernet po rt> indic ates the Ethe rnet por t of the CDP device.

–

If a power injector is installed, issue the command: power inline negotiation injector installed.

• %CDP_PD-2-POWER_LOW: All radios disabled- LOW_POWER_CLASSIC_INJECTOR_

CONFIGURED_ON_ANOTHER_PORT <platform name> (<MAC address>)—This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access poin t. A power injector has been configured, b ut it is for another port. It is likely that the acc ess p oint h as bee n relocated and has not been reconfigured for a new power injector.

The <platorm nam e> indicates the CDP device detected by the access point. The <MAC address> indicates the MAC address of the CDP device, typically, the switch port.

Note A Cisco power injector might be required.

Following the low power status message, two extra messages are displayed when using the console port or a Telnet session that identify the actions needed to resolve this low power problem:

1. Verify the required power injector is installed on the new port: <platform name> (<Ethernet

port>).

(where <platform name> indicates the CDP device detected by the access point and <Ethernet po rt> indic ates the Ethe rnet por t of the CDP device.

2. If a power injector is installed, issue the command: power inline negotiation injector installed.

• %CDP_PD-2-POWER_LOW: All radios disabled- HIGH_POWER_CLASSIC_NOT_

CONFIGURED inline power source <platform name> (<MAC address>)—This message in dica tes the access point is in low power mode with all radios disabled and has detected a Cisco swit ch that does not support Intelligent Power Management, but should be able to supply sufficient power. The access point must be configured for pre-standard compatibility.

The< platform name> indicates the Cisco platform detected by the access point. The <MAC address> indicates the MAC address of the switch port.

Note You need to upgrade the software on the Cisco switch to support Intelligent Power

Management or configure the access point for pre-standard compatibility.

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• %CDP_PD-4-POWER_OK: Full power - INJECTOR_CONFIGURED_OVERRIDE_SAFETY

inline power source —This message indicates the access point has been configured to override the inline power checks and a power injector is installed.

Caution When using the power inline negotiation injector override command, a power injector must always b e

installed to prevent a possible overload condi tion with a n underp owered power source.

Configuring Power Using the CLI

Intelligent Power Management supp ort is depend ent on the version of soft ware resident i n the Cisco switch that is providin g power to the acce ss p oint. Ea ch Cisco swi tch shoul d be up grade d to s uppo rt Intelligent Power Management. Until the software is upgr aded, you can c onfigure the access point to operate with older switch software using the following Cisco IOS CLI command:

[no] power inline negotiation {prestandard source |injector {installed | override | H.H.H}}

(prestandard source indicates the Cisco switch does not support Intelligent Power Management. injector installed indicates a power injector is installed on the current switch port. injector override indicates a power injector is installed and the access point is configured to override the inline power checks. When you move the access point, H.H.H is used to specify the MAC address of the new switch port where the access point was moved. A MAC address of 0.0.0 is invalid.)

Low Power Condition

Caution When using the power inline negotiation injector override command, a power injector must always b e

installed to prevent a possible overload condi tion with a n underp owered power source.

Note The power inline negotiation injector installed command will fail if CDP is disabled.

When using the power inline negotiation injector override command, you must use a power injector to prevent possibly overloading underpowered power sources.

Yo u can use this Ci sco IOS CLI co mmand to info rm the access poi nt of the following:

• The Cisco switch does not support Intelligent Power Management but should be able to supply

sufficient power.

• A power injector is being used to supply sufficient power and the Cisco switch does not supp ort

Intelligent Power Mana geme nt.

• The access point was mo ve d to a new Cisco switch port and a power injector is being used to supply

sufficient power.

Caution If the access point receives power through PoE, the output current of t he power sourcing eq uipm ent

(PSE) cannot exceed 400 mA per por t. Th e power sourc e must c omp ly with I EE E802. 3a f or IEC 609 50 for limited power s ource s.

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Note After completing your configuration changes, you must remove the serial console cable from the access

point.

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Low Power Condition

Table 3-2 Using Cisco IOS Commands

Cisco IOS Commands

Power Source

AC power module None required power inline never Cisco switch that supports Intelligent Power

Management

Cisco switch that does not support Intelligent Power Management

Power injector supports Intelligent Power Management

used with a Cisco switch that

Power injector2 used with a Cisco switch that does not support Intelligent Power Management

Power injector used with a non-Cisco switch None required –

802.3af complia nt n on- Cisco swi tch es None required –

1. You should check the release notes for your Cisco power source to determine which Cisco IOS release supports Intelligent Power Management . Support for Intelligent Power Management might not be currently available for your Cisco power source.

2. Power injector must be AIR-PWRINJ3 or AIR-PWRINJ-FIB.

3. The Cisco switch uses Intelligent Power Management to inform the access point of the power injector being used.

4. Cisco switches that support Intelligent Power Management always configure the use of a power injector at the switch.

Access Point Cisco Switch

no power inline negotiation prestandard source

power inline auto no power inline negotiation injector power inline negotiation prestandard source

power inline auto no power inline negotiation injector

None required

no power inline negotiation prestandard source

power inline neve r

power inline never power inline negotiation injector installed

Issuing the Cisco IOS Command Using the CLI

Follow these steps to issue the Cisco IOS command for your power scenario:

Step 1 Connect a PC to the acce ss p oint c onso le po rt an d us e a ter mina l emu lator to esta blis h a ses si on wi th the

access point (refer to the “Connecting to the Access Point L ocall y” se ct ion on page 3-20).

Step 2 From the global configura tion mod e (refer to the Cisc o IOS Softwa re Configuration Guide for Cisco

Aironet Access Points), enter the command below that applies to your power configuration (see

Table 3-2):

• power inline negotiation injector installed

• no power inline negotiation injector

• power inline negotiation prestandard source

• no power inline negotiation prestandard source Step 3 Enter t he write memory command to save the setting to the access point memory. Step 4 Enter t he quit command to exit the terminal session.

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Low Power Condition

Configuring the Access Point System Power Settings Using a Browser

Yo u can also use your browser to set the access point Syste m Power Settings.

Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer version 6.0

on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.

Note When using the access point browser interface , you should disab le your browser pop -up blocker.

Figure 3-2 shows the system power setting options and indicates the power status of the access point.

Figure 3-2 System Power Settings

Caution If the access point receives power through PoE, the output current of t he power sourcing eq uipm ent

(PSE) cannot exceed 400 mA per por t. Th e power sourc e must c omp ly with I EE E802. 3a f or IEC 609 50 for limited power s ource s.

Table 3-3 lists the access point system power settings and the Cisco switch power commands for several

power options.

Table 3-3 Access Point System Power Settings and Cisco Switch Commands

Cisco Switch

Power Source Access Point System Power Settings

Power Command

AC power module Configuration changes ar e not requ ired power inline never Cisco switch that supports

Intelligent Power Management

Power Settings:

Power Negotiation (selected)

power inline auto

Power Injector:

Installed on Port with MAC Address (unchecked)

Cisco switch tha t do es not support Intelligent Power Management

Power Settings:

Pre-standard Compatibility (selected)

power inline auto

Power Injector:

Installed on Port with MAC Address (unchecked)

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Low Power Condition

Table 3-3 Access Point System Power Settings and Cisco Switch Commands (continued)

Cisco Switch

Power Source Access Point System Power Settings

Power injector Cisco switch that supports Intelligent Power Management

used with a

Power Settings:

Power Negotiation (selected)

Power Injector:

Installed on Port with MAC Address (unchecked)

Power injector2 used with a Cisco switch that does not support Intelligent Power Management

Power Settings:

Power Negotiation (selected)

Power Injector:

Installed on Port with MAC Address (checked)

Power injector used with a

Configuration changes ar e not requ ired –

non-Cisco switch

802.3af compliant non-Cisco

Configuration changes ar e not requ ired –

switches

1. You should check the release notes for your Cisco power source to determine which Cisco IOS release supports Intelligent Power Management. Support for Intelligent Power Management might not be currently available for your Cisco power source.

2. Power injector must be AIR-PWRINJ3 or AIR-PWRINJ-FIB.

3. Cisco switches that support Intelligent Power Management always configure the use of a power injector at the switch.

Power Command

power inline never

Perform these steps to configur e your acc ess point power setting s using th e browser interfac e:

Step 1 Obtain the access point IP address and browse to your access point. Step 2 Perform one of thes e operati ons:

a. When you browse to your access point oper ating in low-power mode, a Warning message displays

indicating that al l radi os are disabl ed due to insu fficient power. Click OK to jump to th e Sy stem Power Settings located on the System Software > System Configuration page .

b. When you browse to your access point op erati ng in full-p ower mode, choo se System Software >

System Configuration.

Step 3 Choose one of thes e Power Set tings op tion s (s ee Figure 3-2):

a. If your Cisco s witc h su pport s Int el ligent Power Mana geme nt n egotiations, choo se Power

Negotiation.

b. If your Cisco switch d oes n ot suppor t Intelligent Power Man agement negotiatio ns, choos e

Pre-standard Compatibility.

c. If you are using a no n-C isco swi tch , cha ng es to the power set ti ngs are n ot r eq uire d.

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Step 4 If you are using a power injector with a Cisco switch, choose one of these Power setting options (see

Figure 3-2):

a. If your Cisco s witc h su ppo rts Inte lligent Power Ma nage ment n egotiations, u nchec k Insta lled on

Port with MAC address.

b. If your Cisco switch does not support Intelligent Power Management, ch eck Installed on Port with

MAC address and ensure the M AC address fo r you r s witc h port is di spla yed in t h e MAC addre ss

field. The HHHH.HHHH.HHHH indicates the MAC address contains 12 hexadecimal digits.

Note The MAC address field is not case-sensitive.

Step 5 Click Apply and a message di spla ys in dica ting tha t you sh ould disa ble pop-u p b loc kers be for e

proceeding.

Step 6 Click OK to continue. Your access point reboots and you r power setti ngs a re c onfigured i n the a c cess

point.

Note You might have to refresh your browser page to obtain the latest browser page that indicates your

radios are enabled.

Running the Carrier Busy Test

You can use the carrier busy test to determine the least conjested channel for a radio interface (802.11g or 802.11a). You should typically run the test several times over several days t o obt ai n th e be st r esu lts and to avoid temporary activity spikes.

Note The carrier busy test is primarily used for single access points or bridge environments. For sites with

multiple access points, a site survey is typically performed to determine the best operation location and operating frequency for t he access poi nts.

Note All associated clients on the selected radio will b e deassocia ted during the 6 to 8 secon ds needed for the

carrier busy test.

Perform these steps to activate the carrier busy test:

Step 1 Use your web browser to access the access point browser inte rface. Step 2 Click Network Interfaces and the Ne twork I nt erfac e Sum ma ry page d isplay s. Step 3 Choose the rad io i nte rface experi enc ing pr oble ms by cl ick ing Radi o0-802 .11G or Radi o1-802 .11A .

The respective radio status page displays.

Step 4 Click the Carrier Busy Test tab and the Carrier Busy Test page displays

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Running the Ping Test

Step 5 Click Start to begin the carrier busy test.

When the test completes, the results are displayed on the page. For each of the channel center frequencies, the test produces a value indicating the percentage of time that the channel is busy.

Running the Ping Test

Yo u can use the ping test to evaluate the link to and fr om an associ ated wir eless device. Th e ping test provides two modes of o peratio n:

a. Performs a test using a specified number of packets and then displays the test results. b. Performs a test that continuously operates until you stop the test and then displays the test results.

Follow these steps to activate the ping test:

Step 1 Use your web browser to access the access point browser inte rface. Step 2 Click Association and the main association pa ge display s.

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Step 3 Click the MAC address of an associated wireless device and the Statistics page for that device displ ays. Step 4 Click the Ping/Link Test tab and the Ping/Link Test page displays. Step 5 If you want to specify the number of packets to use in the test, follow these steps:

a. Enter the number of packets in the Number of Packets field b. Enter the packet size in the Packet Size field. c. Click Start.

Step 6 If you want to use a continuous t est, follow these step s:

a. Enter the packet size in the Packet Size field. b. Click Start to activate the test. c. Click Stop to stop the test.

When the test has completed, the test results are displayed at the bottom of the page. You should check for any lost packets that can indicate a problem with the wireless link. For best results, you should also perform this test several times.

Resetting to the Default Configuration

If you forget the password tha t a ll ows you to c on figure the ac cess poi nt, you ma y need t o co mpl et ely reset the configuration. You can use the MODE button on the access p oint or th e we b-b rowser interface.

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Note The following steps reset all configuration settings to factory defaults, including passwords, WEP keys,

the IP address, and the SSID.

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Using the MODE Button

Follow these steps to delete the current configuration and return all access point settings to the factory defaults using the MODE button:

Step 1 Disconnect power (the power jack for extern al power or the Et her net cable for in- line power) from t he

access point.

Step 2 Press and hold the MODE button while you reconnect power to the access point. Step 3 Hold the MODE butto n until the Ethernet LED tu rns an amber color (approxi mately 2 to 3 seconds), and

release the button.

Step 4 After the access point reboots, you must reconfigure the access point by using the Web browser interface,

the Telnet interface, or Cisco IOS commands.

Note The access point is configured with the factory default values including the IP address (set to

receive an IP address using DHCP).

Resetting to the Default Configuration

Using the Web Browser Interface

Follow these steps to delete the current configuration and return all access point settings to the factory defaults using the w eb b rowser int erface.

Step 1 Open your I nter net browser.

Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer

version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.

Note When using the access point browser interface, you should disable your browser pop-up blocker.

Step 2 Enter the access point’s IP address in the browser address line and press Enter. An Enter Network

Password page displays.

Step 3 Enter your usern am e in t h e User N a me field . Step 4 Enter the acce ss point pa ssword in the Password field an d press Ente r. The Summary Status page

displays.

Step 5 Click System Software and the System Software page displays. Step 6 Click System Configuration and the System Configurat ion page displa ys.

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Reloading the Access Point Image

Step 7 Click the Reset to Defaults button.

Note If the access point is configured with a static IP address, the IP address does not change.

Step 8 After the access point reboots, you must reconfigure the access point by using the Web browser interface,

the Telnet interface, or Cisco IOS commands.

Reloading the Access Point Image

If your access point has a firmware failure, you must reload the complete access point image file using the Web browser in terf ace or b y usin g the MO DE b utto n. You can use the bro wser inte rf ace if th e acc ess point firmware is still fully operatio nal a nd you w ant to upgrad e the firmware image. However , y ou ca n use the MODE button when the access point has a corrupt firmware image.

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Using the MODE Button

You can use the MODE button on the access point to reload the access point image file from an active Trivial File Transfer Protocol (TFTP) server on you r network or on a PC connec ted to the a ccess point Ethernet port.

Note If your access point experiences a firmware failure or a corrupt firmware image, indicated by the Status

LED turning an a m ber c ol or, you must rel oad t he i mage f rom a co nnect ed TFT P se rver.

Note This process resets all co nfiguration setting s to factory default s, including passwords, WEP keys, the

access point IP address, and SSIDs.

Follow these steps to reload the access point image file:

Step 1 The PC you intend to use must be configured with a static IP address in the same subnet as the access

point.

Step 2 Place a copy of the acces s point image file (such as c1240-k9w7-tar.123-8.JA.tar) into the TFTP server

folder on your PC. For additional information, refer to the “Obtaining the Access Point Image File” and

“Obtaining the TFTP Server Software” sections.

Step 3 Rename the access point image file in the TFTP server folder to c1240-k9w7-tar.default. Step 4 Activate the TFT P ser ver.

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Step 5 If using in-l ine power, use a Category 5 ( CAT5) Ethernet cable to conne ct you r PC t o the To Networ k

Ethernet connec tor on the power injector.

Step 6 Disconnect power (the p ower jack for extern al power or the Ethe rne t cable for i n-line power) from the

access point.

Step 7 Press and hold the MODE button while you reconnect power to the access point.

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Step 8 Hold the MODE button until the Radio LED turns a red color (approximately 20 to 30 seconds), and

release the MODE button .

Step 9 After the access point rebo ots, you must reconfigure the acc ess point by using the Web interface, the

Telnet interface, or Cisco IOS commands.

Web Browser Interface

You can also use the Web browser interface to reload the access point image file. The Web browser interface supports loading the image file using HTTP or TFTP interfaces.

Note Your access point configuration is not changed when using the browser to reload the image file.

Browser HTTP Interface

The HTTP interface enables you to browse to the access point image file on your PC and download the image to the access point. Follow these instructions to use the HTTP interface:

Reloading the Access Point Image

Step 1 Open your I nter net browser.

Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer

version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.

Note When using the access point browser interface, you should disable your browser pop-up blocker.

Step 2 Enter the access point’s IP address in the browser address line and press Enter. An Enter Network

Password page displays.

Step 3 Enter your usern am e in t h e User N a me field . Step 4 Enter the acce ss point pa ssword in the Password field an d press Ente r. The Summary Status page

displays.

Step 5 Click the System Software tab and then click Software Upgrade. The HTTP Upgrade page displays. Step 6 Click the Browse button to locate the access point image file (such as c1240-k9w7-tar.123-8.JA.tar) on

your PC.

Step 7 Click the Upload button.

For additional information, click the Help icon on the Software Upgrade page.

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Reloading the Access Point Image

Browser TFTP Interface

The TFTP interface allows you to use a T FTP server on a network device to load the access point image file. Follow these instructions to use a TFTP server:

Step 1 Open your I nter net browser.

Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer

Note When using the access point browser interface, you should disable your browser pop-up blocker.

Step 2 Enter the access point’s IP address in the browser address line and press Enter. An Enter Network

Password page displays.

Step 3 Enter your usern am e in t h e User N a me field .

Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.

Step 4 Enter the access point pa ssword in the Password field and press Ente r. The Summary Status page

displays.

Step 5 Click the System Software tab and then click Software Upgrade. The HTTP Upgrade page displays. Step 6 Click the TFTP Upgrade tab. Step 7 Enter the I P a ddr es s fo r t he T FTP ser ver i n the T FTP Ser ver field . Step 8 Enter the file name for the access point image file (such as c1240-k9w7-tar.123-8.JA.tar) in the Upload

New System I mage Tar File field. If the f ile i s located in a subdire ctory of th e TFTP serv er root directory, include the relative path of the TFTP server root directory with the filename. If the file is located in the TFTP root directory, enter only the filename.

Step 9 Click the Upload button. Step 10 When a message displays that indicates the upgrade is complete, click OK.

For additional information click the Help icon on the Soft ware Upg ra de pa ge .

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Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Obtaining the Access Point Image File

The access point image file can be obtained from the Cisco.com software center using these steps:

Step 1 Use your Intern et browser to access th e Cisco Soft ware Cente r at the fo llowing URL:

http://tools.cisco.com/support/downloads/pub/MDFTree.x?butype=wireless

Step 2 Click Wireless LAN Access > Aironet Access Points > Cisco Aironet 1240 AG Series. Step 3 Click Cisco Aironet 1240AG Access Point. Step 4 On the Enter Network Password window, enter your Cisco.com username and passwor d and click OK . Step 5 Click IOS. Step 6 Choose the Cisco IOS release desired, such as 12.3.8.JA. Step 7 Click WIRELESS LAN for your access point image file, such as c1240-k9w7-tar.123-8.JA.tar. Step 8 On the Enter Network Password window, enter your Cisco.com username and passwor d and click OK . Step 9 On the Security Information window, click Yes to display non-secu re item s. Step 10 On the Encryption Software Export Authorization page, read the information and check Yes or No to the

question asking if the image is for use my yo u or your organizatio n. Click Submit..

Step 11 If you checked No, enter the requested information and click Submit.

Obtaining the Access Point Image File

Step 12 Click Yes to continue. Step 13 Click DOWNLOAD. Step 14 Read and accept the terms and conditions of the Software Download Rules. Step 15 On the Enter Network Password window, enter your Cisco.com username and password and cl ick OK. Step 16 Click Save to download your image file to your hard disk. Step 17 Select the desire d download loc ati on o n y our ha rd d is k an d c lic k Save.

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Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points

Connecting to the Access Point Locally

If you need to configure the access point lo cally (without connecting the access po int to a wired LAN), you can connect a PC to its console port using a DB-9 to RJ-45 serial cable.

Caution Be careful when handling the access point, the bottom plate might be hot.

Note After completin g y our c onfigura tio n cha ng es, y ou mu st re move the seri al cabl e f rom th e acc ess po in t.

Follow these steps to open the CLI by connecting to the access point console port:

Step 1 Connect a nine-pin, female DB-9 to RJ-45 serial cable to the RJ-45 console port on the access point and

to the COM port on a computer.

Figure 3-3 shows the console port location.

Figure 3-3 Console Port Location

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

1 Console port

Note The Cisco part nu mbe r for th e DB-9 to RJ-4 5 s er ial c abl e i s A IR-CO NCA B1 200. B rowse to

http://www.cisco.com/go/marketplace to order a serial cable.

Step 2 Set up a terminal emulator on your PC to communicate with the acc ess point. Use the follo w ing settin gs

for the termina l e mu lator c onn ect ion: 9 600 ba ud , 8 da ta b its, n o pa rit y, 1 stop bit, and no flow co ntro l.

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Obtaining the TFTP Server Software

You can download TFTP server software from several web sites. Cisco recommends the shareware TFTP utility available at this URL:

http://tftpd32.jounin.net

Follow the instructions on the website for installing and using the utility.

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CHA PTER

Troubleshooting 1240AG Series Lightweight Access Points

This chapter provid es trou blesh oot ing pr oced ure s for b asic p roble ms wi th the 124 0AG series lightweight access p oint (A IR- LAP12 42AG or A IR -LAP1 242G). For the mo st up -to- da te, de tail ed troubleshooting i nform a tion , re fe r t o th e Cisco Technical Suppor t a nd D oc ument at ion webs ite at the following URL:

http://www.cisco.com/en/US/products/hw/wireless/tsd_produ cts_supp ort_cat egory_home.html

Sections in this chapter include:

• Guidelines for Usi ng Ci sco Air onet L ight we ight A cc ess Point s, pa ge 4-2

• Checking the Lightw eig ht Ac ce ss Poi nt L EDs, page 4-3

• Low Power Condition for Light weight A cce ss Poin ts, p age 4-5

• Manually Configuring Controller Information Using the Access Point CLI, page 4-7

• Obtaining the Autonomous Access Point Image File, page 4-10

• Obtaining the TFT P Server Software , pa ge 4-12

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Guidelines for Using Cisco Aironet Lightweight Access Points

Keep these guidelines in mind when you use a 124 0 series lig htweigh t acce ss point:

• The access points can only commu ni cate with Cisc o 20 06 seri es wir ele ss LAN co nt rolle rs or 440 0

series controllers.

Note Cisco 4100 series, Airespace 4012 series , and Airespa ce 4024 ser ies wireless LA N

controllers are not supported becau se they lack th e memory requir ed to support acce ss points running Cisco IO S so ftwa re.

• The access poin ts do n ot suppor t Wireless Dom ain Servic es (W DS) a nd can not co mm unic ate w it h

WDS devices. However, the controller provides functionality equivalent to WDS when the access point associates to it.

• The access points support eight Basic Serv ice Set Id entif iers ( BSSIDs) per r adio and a total of eig ht

wireless LANs per acc ess point. When an a ccess point ass ociates to a contr oller , only wireless LANs with IDs 1 through 8 are pushed to the access p oint.

• The access poin ts do n ot suppor t Lay er 2 LWAP P. They must get an IP address a nd discover the

controller using DHC P, DNS, or IP subnet broadcast.

• The access po int c onso le por t i s en abl ed for moni tor in g an d d ebug pu rpo ses (al l c onfigura tio n

commands are dis abled when co nnecte d to a cont rolle r).

Using DHCP Option 43

You can use DHCP Option 43 to provide a list of controller IP addresses to the access points, enabling the access point to find and join a controller. For additional information, refer to the “Configuring DHCP

Option 43 for Light we ight A cce ss Points ” se ctio n o n pag e G-1.

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Checking the Lightweight Access Point LEDs

If your lightweight access point is not working properly, check the Status, Ethernet, and Radio LEDs on the 2.4 GHz end of the unit. You can use the LED indications to quickly assess the unit’s status.

Figure 4-1 shows the access point LEDs (for additional information refer to the Event Log using the

access point br owser inte rface ).

Figure 4-1 Access Point LEDs

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

321

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

1 Ethernet LED 3 Status LED 2 Radio LED

The LED signals are li sted i n Table 4-1.

Table 4-1 LED Signals

Cable Bay Area Top of Unit

Message type

MeaningEthernet LED Radio LED Status LED

Boot loader status Green Green Green DRAM memory test ok.

Off Blinking green Blue-green Initialize Flash file system. Off Green Pink Flash memory test ok. Green Off Dark blue Ethernet test ok. Green Green Green Starting Cisco IOS.

Association status — — Light green Normal op erating condition , but no wireless client

devices are associated with the unit.

— — Blue Normal operating condition, at least one wireless

client device i s ass oci a ted w it h t h e uni t .

Operating status Green — — E thernet link is operational.

Blinking green — — Transmitti ng or r ec eiving Et hern et p ac kets. — Blinking green — Transmitting or receiving radio packets. — — Blinking

Software upgrade in progress

dark blue

Slow blinking

— — Hybrid-REAP standalone mode

green

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Checking the Lightweight Access Point LEDs

Table 4-1 LED Signals (continued)

Message type Ethernet LED Radio LED Status LED Meaning

Boot loader warnings

Boot load er e rr ors Red Red Red DRAM memory test fai lur e.

Cisco IOS errors Blinking ambe r — — Transmit or receive Ethernet errors.

Controller status Alternating green, re d , and am ber

Off Off Yellow Ethernet link not operat ional. Red Off Yellow Ethernet failure. Amber Off Yellow Configuration recovery in progress

(Mode button pressed for 2 to 3 seconds).

Off Red Pink Image recovery

(Mode button pressed for 20 to 30 seconds)

Blinking green Blinking red Blinking pink Image recovery in prog ress a nd M ode button i s

released.

Off Red Blinking red

Flash file system failure.

and blue

Off Amber Blinki ng red

Environment variable (ENVAR) failure. and blue-green

Amber Off Blinking red

Bad MAC address. and yellow

Red Off Blinking red

Ethernet failure during image recovery. and off

Amber Amber Blinking red

Boot environment error. and off

Red Amber Blink ing red

No Cisco IOS image file. and off

Amber Amber Blinking red

Boot failure. and off

— Blinking

— Maximum retries or buffer full occurred on the radio.

amber

Red Red Amber Software failure; try d iscon ne ctin g a nd rec onne ct ing

unit power.

— — Amber General warning, insufficient inline power (see the

Low Power Condition for Lightweight Access Points

section).

Connecting to the controller.

Note If the access point remains in this mode for

more than five minutes, the access point is unable to find the controller. Ensure a DHCP server is available or that controller information is configured on the access point.

Green Green Blinking dark

Loading the access point image file. blue

1. This status ind ica tion has t he h ig hest pri orit y and overrides o the r sta tus in dic ations .

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Low Power Condition for Lightweight Access Points

Warning

Note An 802.3af compliant switch (Cisco or non-Cisco) is capable of supplying sufficient power for full

Note If your access point is connected to in-line power, do not connect th e power module to the access point.

This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.

operation.

Statement 353

Point LEDs” section on page 4-3).

Intelligent Power Management

The access po int re qu ire s 12 .9 5 W of power ( up to 1 5.4 W wi th 1 00 m CAT 5 Ethernet cable) for fu ll power operation with bo th rad io s, but only nee ds 6.3 W of p ower when ope rat ing in l ow power mod e with both radios disabled. To help avoid an over-current condition with low power sources and to optimize power usage on Cisco swit ches, C isco developed Intellige nt Power Managem ent, whi ch use s Cisco Discovery Protocol (CDP) to allow powered devices (such as your access point) to negotiate with a Cisco switch for sufficient power.

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Low Power Condition for Lightweight Access Points

Note Independent of the power negotiations, the access point hardware also uses the 802.3af classification

When the access point determines that sufficient power is not available for full-power operation, the readios are deac tivated and the Stat us LED turns am ber to indica te low power mode (s ee Table 4-1).

If your Cisco swit ch is ca pabl e o f supp lying sufficient power for fu l l op erat ion but the a cce ss poi nt remains in low-power mode, yo ur a cce ss poi nt o r y our sw itch ( or bot h) m ight be m iscon figured (se e

Table 4-2.

If your inline power source is not able to supply sufficient power for full operation, you should consider these options (see Table 4-2):

Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

• Upgrade to a h ighe r-powered swi tch

• Use a Cisco Aironet power injector on the switch por t

• Use the 48-VDC power module to locally power the access point

Configuring Power Using Controller CLI Commands

Intelligent Power Management supp ort is depend ent on the version of soft ware resident i n the Cisco switch that is providin g power to the acce ss p oint. Ea ch Cisco swi tch shoul d be up grade d to s uppo rt Intelligent Power Management. Until the software is upgraded, you can use your controller to configure the access point to operate with older switch software using these controller CLI commands:

1) config ap power pre-standard enable <ap> where <ap> is the access point name on the controller

2) config ap power injector enable <ap> <switch port MAC address> (where <ap> is the access point name on the controller

and <switch port MAC address> is the MAC address of the switch port to which the access point is connected)

Note Refer to your c ontr oller do cu me nta tion f or in stru cti ons on us in g th ese com ma nd s.

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Manually Configuring Controller Information Using the Access Point CLI

Yo u can use the se contr oller CLI co mman ds to inform the access poin t of the fol lowing:

• The Cisco switch does not support Intelligent Power Management but should be able to supply

sufficient power.

• A power injector is being used to supply sufficient power and the Cisco switch does not supp ort

Intelligent Power Mana geme nt.

Refer to Table 4-2 for information on when to use these special CLI controller commands and the corresponding C isco sw itch power co mm an d.

Caution If the access point receives power through PoE, the output current of t he power sourcing eq uipm ent

(PSE) cannot exceed 400 mA per port. The power source must comply with IEEE 802.3af or IEC60950 for limited power s ource s.

Table 4-2 Using CLI Power Commands

CLI Commands

Power Source

AC power module None required power inline never Cisco switch that supports Intelligent Power

Management

Cisco switch that does not support Intelligent Power Management

Power injector supports Intelligent Power Manageme nt

used with a Cisco switch that

Power injector2 used with a Cisco switch that does not support Intelligent Power Management

Power injector used with a non-Cisco switch None required –

802.3af complia nt n on- Cisco swi tch es None required –

2. Power injector must be AIR-PWRINJ3 or AIR-PWRINJ-FIB.

3. Cisco switches that support Intelligent Power Management always configure the use of a power injector at the switch.

Cisco Wireless LAN Controller Cisco Switch

None required power inline auto

config ap power pre-standard enable power inline auto

None required power inline never

config ap power injector enable power inline never

Manually Configuring Controller Information Using the Access Point CLI

In a new installation , wh en yo ur acc es s po int is una ble to reac h a DH CP se rver, you can manua ll y configure needed controlle r infor matio n usi ng the acce ss point CLI . F or info rma tio n on how to connect to the consol e p ort , se e the “Connecting to the Access Point Locally” section on page 4-11.

Note The CLI commands in this section can be used only on an access point that is not associated to a

controller.

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4-7

Manually Configuring Controller Information Using the Access Point CLI

The static information configured with the CLI commands are used by the access point to connect with a controller. After connecting with the controller, the controller reconfigures the access point with new controller settings, but the static IP addresses for the access point and the default gateway are not changed.

Configuring Controller Information

To manually con figure c on troll er i nfor ma tio n on a new (out -of - th e-box ) acc ess poi n t using t he ac cess point CLI interface, you can use these EXEC mode CLI commands:

AP# lwapp ap ip address <IP address> <subnet mask> AP# lwapp ip default-gateway IP-address AP# lwapp controller ip address IP-address AP# lwapp ap hostname name

Where name is the access point name on the controller.

Note The default (out-of-box ) Enable passwo rd is Cisco.

Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Clearing Manually Entered Controller Information

When you move your access poin t to a di fferent loc atio n in your ne twork , yo u mus t clea r the ma nual ly entered controller information to allow your access point to associate with a different controller.

Note This command re quir es t he c ontr ol ler c onfigure d En abl e pa ssword to e nte r the CLI EX EC m ode.

To clear or remove the manually entered controller information, you can use these EXEC mode CLI commands:

clear lwapp ap ip address clear lwapp ip default-gateway clear lwapp controller ip address clear lwapp ap hostname

Manually Resetting the Access Point to Defaults

Yo u can manua lly reset your access poi nt to defaul t settings using this EXEC mode CLI co mmand :

Note This command re quir es t he c ontr ol ler c onfigure d En abl e pa ssword to e nte r the CLI EX EC m ode.

clear lwapp private-config

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Returning the Lightweight Access Point to Autonomous Mode

Yo u can ret urn a lightwei ght access point to autonom ous mode by loading a Cisc o IOS release th at supports autonomou s mode ( such as Cisc o IO S Rel ease 1 2.3(7) JA or earlier). If t he ac cess po int i s associated to a cont rol ler, you can use the con t rolle r to l oad the Ci sco I OS r ele ase ( re fer to your controller docum en tati on ). If t he a cce ss point i s no t a ssoci ate d to a con trol ler, you can l oad t h e Ci sco IOS release using TFTP.

Using a Controller to Return the Access Point to Autonomous Mode

Follow these steps to return a lightweight access point to autonomous mode using a controller:

Step 1 Log into the CLI on the controller to which the access point is associated and enter this command:

config ap tftp-downgrade tftp-server-ip-address filename access-point-name

(where:

a) tftp-server-ip-address is the IP address of the TFTP server b) filename is the full path and filename of the access point image file, such as D:/Images/c1240-k9w7-tar.123-7.JA.tar c) access-point-name is the name that identifies the access point on the ocntroller.)

Step 2 Wait until the access point reboots, as indicated by all LEDs turning green followed by the Status LED

blinking green.

Step 3 After the access point re boots, reco nfigure it using the access point GUI or the CL I.

Using the MODE Button to Return the Access Point to Autonomous Mode

Follow these steps to return a lightweight access point to autonomous mode using the access point MODE button and a TFTP server:

Note The access point MODE button is enabled by default, but you need to verify that the MODE button is

enabled (see the “MODE Button Setting” section on page 4-10).

Step 1 Set the static IP address of the PC on which your TFTP server software runs to an address between

10.0.0.2 and 10.0. 0.30.

Step 2 Make sure that the PC contai ns the ac cess point ima ge file (such as c124 0-k9w7 -tar.123-7.JA.tar for a

1240 series access point) in the TFTP server folder and that the TFTP server is activated.

Step 3 Rename the access point image file in the TFTP server folder to c1240-k9w7-tar.default. Step 4 Connect the PC to the access poi nt using a Category 5 (CAT5) Ethernet cable.

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Step 5 Disconnect power from th e acces s point. Step 6 Press and hold the MODE button while you reconnect power to the access point. Step 7 Hold the MODE button until the Radio LED turns red (approximately 20 to 30 seconds) and then

release.

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

4-9

Obtaining the Autonomous Access Point Image File

Step 8 Wait until the access point reboots, as indicated by all LEDs turning green followed by the Status LED

blinking green.

Step 9 After the access poin t reboots, re configure it using the access poi nt GUI or th e CLI.

MODE Button Setting

The lightweight access point MODE button is configured from your Cisco Wireless LAN Controller. Use these controlle r CLI comm ands to view and configure th e MODE button:

1) config ap rst-button enable <access-point-name>/all

2) config ap rst-button disable <access-point-name>/all

3) show ap config general <access-point-name> (Where access-point-name is the name that identifies the access point on the ocntroller.)

Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Obtaining the Autonomous Access Point Image File

The autonomous access point image file can be obtained from the Cisco.com software center using these steps:

Note To download software from the Cisco.com software center, you must be a registered user. You can

Step 1 Use your Intern et browser to access th e Cisco Soft ware Cente r at the fo llowing URL:

http://tools.cisco.com/support/downloads/pub/MDFTree.x?butype=wireless

Step 2 Click W ireless LAN Access > Ai ronet Ac cess Points > Cisco Aironet 1240AG Series > Cisco Aironet

1240AG Access Point. The Enter Password window appears.

Step 3 Enter your username an d password in the respe ctive fields and click OK. The Select a Software Type

page appears.

Step 4 Click IOS and the Select a Release page appears. Step 5 Click on the IOS release for the desired access point image file, such as 12.3.8-JA. Step 6 Click Wireless LAN an d the Enter Password w indow appear s. Step 7 Enter your username an d password in the respe ctive fields and click OK. Step 8 If you receive a Do you w ant t o disp lay th e no nsecu re items? messa ge, clic k Yes. Step 9 On the Encryption Software Export Distribution Authorization Form, read the information and click the

appropriate bo x.

4-10

Step 10 Click Submit. Step 11 If you indicated that th e software is not for you or your co mpany, follow these steps:

a. If you receive a Do you w ant t o di sp lay the no nsecu re items? messa ge, clic k Yes. The Encryption

Software Export Distribution Authorization window appears.

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

b. Carefully read the information and enter the Cisco.com user profile or detailed data describing the end

user of this software image in the provided fields.

c. Click Submit. Step 12 If you receive a Do you wish t o co ntinue ? security alert message, click Yes to continue. Step 13 Click Download. Step 14 Carefully read the Software Download Rules and click Agree to download the image file. An Enter

Password window appears.

Step 15 Enter your username and pa ssword in the respec tive fields and click OK. Step 16 Download and save the image file to your hard drive and then exit the Internet browser.

Connecting to the Access Point Locally

If you need to configure the access point lo cally (without connecting the access po int to a wired LAN), you can connect a PC to its console port using a DB-9 to RJ-45 serial cable.

Connecting to the Access Point Locally

Caution Be careful when handling the access point, the bottom plate might be hot.

Note After completin g y our c onfigura tio n cha ng es, y ou mu st re move the seri al cabl e f rom th e acc ess po in t.

Follow these steps to open the CLI by connecting to the access point console port:

Step 1 Connect a nine-pin, female DB-9 to RJ-45 serial cable to the RJ-45 console port on the access point and

to the COM port on a computer.

Figure 4-2 shows the con sole port lo ca tion.

Figure 4-2 Console Port Location

2.4 GHz LEFT

STATUS

RADIO

ETHERNET

CONSOLE

MODE

ETHERNET

48VDC

2.4 GHz RIGHT/PRIMARY

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1 Console port

Note The Cisco part nu mbe r for th e DB-9 to RJ-4 5 s er ial c abl e i s A IR-CO NCA B1 200. B rowse to

http://www.cisco.com/go/marketplace to order a serial cable.

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points

Obtaining the TFTP Server Software

Step 2 Set up a terminal emulator on your PC to communicate with the acc ess point. Use the follo w ing settin gs

for the termina l e mu lator c onn ect ion: 9 600 ba ud , 8 da ta b its, n o pa rit y, 1 stop bit, and no flow co ntro l.

Obtaining the TFTP Server Software

You can download TFTP server software from several web sites. Cisco recommends the shareware TFTP utility available at this URL:

http://tftpd32.jounin.net

Follow the instructions on the website for installing and using the utility.

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APPENDIX

Translated Safety Warnings

For translated safety warnings, refer to the safety warnin g d o cu me nt t hat shipped with you r access p oi nt or that is available on Cisco.com.

To browse to the document on Cisco.com, follow these steps:

Step 1 Click this link to the Cisco Wireless documentat ion home page :

http://www.cisco.com/en/US/products/hw/wireless/tsd_produ cts_supp ort_cat egory_home.html

Step 2 Click Cisco Aironet 1240AG Series listed under Acce ss Poin ts. Step 3 Click Install and Upgrade Guides. Step 4 Click Safety Warnings for Cisco Aironet 1000, 1100, 1130 AG, 1200, and 1240 AG Series Access

Point s.

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A-1

Appendix A Translated Safety Warnings

A-2

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APPENDIX

Declarations of Conformity and Regulatory Information

This appendix p rovides de cla rat ions of co nfo rmity a nd regulat ory inf orm ati on for t he Ci sco Air onet 1240AG Series Access Points.

This appendix cont ai ns the fo llowing se ctio ns:

• Manufacturers Federal Commu nication Com mission Decl aration of Conf ormit y Statemen t,

page B-2

• Department of Comm unic atio ns—Ca na da, page B-4

• European Community, Switzerland, Norway, Iceland, and Liechtenstein, page B-4

• Declaration of Conformity for RF Exposure, page B-7

• Guidelines for Operating Cisco Aironet Access Points in Japan, page B-8

• Administrative Rules for Cisco Aironet Access Points in Taiwan, page B-9

• Declaration of Conformity Statements, page B-11

• Declaration of Conf ormity Statemen ts for Eur opean Un ion Count ries, page B-11

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B-1

Appendix B Declarations of Conformity and Regulatory Information

Manufacturers Federal Communication Commission Declaration of Conformity Statement

Tested To Comply With FCC Standard

FOR HOME OR OFFICE USE

Autonomous Access Point Models:

AIR-AP1242AG-A-K9 AIR-AP1242G-A-K9

Lightweight Access Point Models:

AIR-LAP1242AG-A-K9 AIR-LAP1242G-A-K9

FCC Certification number:

LDK102056, LDK102066

Manufacturer:

Cisco Systems, Inc. 170 West Tasma n Dr ive San Jose, CA 95134- 170 6 USA

This device complies with Part 15 rules. Operation is subject to the following two conditions:

1. This device may not ca use h ar mf ul i nte rf eren ce , and

2. This devic e mu st ac cep t any interference received, includi n g inter f er en ce th at may cause undesired

operation.

This equipment has been tested and found to comply with the limits of a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when th e equipm ent is o perated i n a reside ntial environment. Thi s equipm ent ge nerates, uses, and radiat es r a dio f requ ency en ergy, and if not insta lled a nd use d in a cco rda nce wi th t he instructions, may cause harmful interference. However, there is no guarantee that interference will not occur. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to correct the interference by one of the following measures:

• Reorient or re loca te the r ece iving an tenn a.

• Increase separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from which the receiver is connected.

B-2

• Consult the dea ler o r an experi enc ed radi o/T V t ech ni cia n.

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Caution The Part 15 radio device operates on a n on- inter fere nce basi s wi th othe r devices o pera tin g at t h is

frequency when using the integrated antennas. Any changes or modification to the product not expressly approved by Cisco could void the u ser ’s authority to oper ate this device.

Caution Within the 5.15 to 5.25 GH z band (5 GHz ra dio chan nels 34 to 48) the U-N II devices are rest ricted to

indoor operations to reduce any potential f or harmful interferen ce to co-channel Mobile Satellite System (MSS) operations.

VCCI Statement for Japan

Warning

This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual.

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Appendix B Declarations of Conformity and Regulatory Information

Department of Communications—Canada

Autonomous Access Point Models:

AIR-AP1242AG-A-K9 AIR-AP1242G-A-K9

Lightweight Access Point Models:

AIR-LAP1242AG-A-K9 AIR-LAP1242G-A-K9

Certification number:

2461B-102055, 2461B-102066

Canadian Compliance Statement

This Class B Digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numerique de la classe B respecte les exigences du Reglement sur le material broilleur du Canada.

This device co mplie s with Class B Limits o f Ind ustry Can ada. Op er ati on is su bjec t to th e following two conditions:

1. This device may not ca use h ar mf ul i nte rf eren ce , and

2. This devic e mu st ac cep t any interference received, includi n g inter f er en ce th at may cause undesired

operation.

Cisco Aironet 2.4-GHz Access Poi nts a re c ertified to the r eq uireme nts of RSS-2 10 fo r 2.4- GHz sprea d spectrum devices, and Cisco Aironet 54-Mbps, 5-GHz Access Points are certified to the requirements of RSS-210 for 5-GHz spread spectrum devices.The use of this device in a system operating either partially or completely outdoors may require the user to obtain a li cense for the sy stem according to the Canadian regulations. For further informa tion, contact your local Ind ustry Cana da office.

European Community, Switzerland, Norway, Iceland, and Liechtenstein

Autonomous Access Point Models:

AIR-AP1242AG-E-K9 AIR-AP124 2 G- E- K 9

Lightweight Access Point Models:

B-4

AIR-LAP1242AG-E-K9 AIR-LAP1242G-E-K 9

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Appendix B Declarations of Conformity and Regulatory Information

European Community, Switzerland, Norway, Iceland, and Liechtenstein

Declaration of Conformity with Regard to the 1999/5/EC (R&TTE Directive)

This declaration is onl y valid for configurations (c ombina tions of softwa re, firmware, and hardware) provided and supported by Cisco Systems. The use of software or firmware not provided and supported by Cisco Systems may result in the equipment no lo nger being co mplia nt with the regulatory requirements.

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European Community, Switzerland, Norway, Iceland, and Liechtenstein

Appendix B Declarations of Conformity and Regulatory Information

B-6

This device complies with the EMC req u irements (EN 60601-1-2) of the Medical Directive 93/42/EEC. For 2.4 GHz radio s, the fo llowing sta nda rds w ere a pp lied:

• Radio: EN 300.328-1, EN 300.32 8-2

• EMC: EN 301.489-1, EN 301.48 9-17

• Safety: EN 60950

Note This equipment is intended to be used in all EU and EFTA countries. Outdoor use may be restricted to

certain frequencies and/or may require a license for operation. For more details, contact Cisco Corporate Compliance.

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Appendix B Declarations of Conformity and Regulatory Information

For 54 Mbps, 5 GHz access points, the fo llowing standards we re applied:

• Radio: EN 301.893

• EMC: EN 301.489-1, EN 301.48 9-17

• Safety: EN 60950

The following CE mark is affixed to the access point with a 2.4 GHz radio a nd a 54 Mbps, 5 GHz radio:

Declaration of Conformity for RF Exposure

The radio has been found to be compliant to the requirements set forth in CFR 47 Se ctions 2.1091, and

15.247 (b) (4) add ressing RF Exp osure fr om radio fr e quency d evices as d efined in E valuating Compliance with FCC Guidelines for Human Ex posure to Radio Frequenc y Electromagnetic Fields. The equipment should be insta lled mo re than 20 cm (7.9 in.) from yo ur body or ne arby person s.

The access point must be installed to maintain a minimum 20 cm (7.9 in.) co-located separation distance from other FCC approved indoor/out door an tennas used wi th the acce ss point. Any ante nnas or transmitters not approved by the FCC cannot be co-located with the access point. The access point’s co-located 2.4 G Hz and 5 GHz in tegrate d a nte nnas supp ort a mini m um se pa rat ion d ist ance o f 8 cm (3.2 in.) and are compliant with the applicable FCC RF exposure limit when transmitting simultaneously.

Declaration of Conformity for RF Exposure

Note Dual antennas used for diversity operation are not considered co-located.

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Appendix B Declarations of Conformity and Regulatory Information

Guidelines for Operating Cisco Aironet Access Points in Japan

This section provides guidelines for avoiding interference when operating Cisco Aironet access points in Japan. These gu id eline s ar e pr ovided i n bot h Japa ne se a nd E ngli sh.

Autonomous Access Point Models:

AIR-AP1242AG-J-K9 AIR-AP12 42 G-P-K9

Lightweight Access Point Models:

AIR-LAP1242AG-J-K9 AIR-LAP1242G-P-K9

Japanese Translation

English Translation

This equipment op erates in the same frequency bandwidth as industrial, scientific, and medical devices such as microwave ovens and mobile object identification (RF-ID) systems (licensed premises radio stations and un licen sed sp eci fied low-power radio st atio ns ) use d in fac tory p rod uctio n l ine s.

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03-5549-6500

43768

1. Before using this equipment, make sure that no premises radio stations or specified low-power radio

stations of RF-ID are used in the vicinity.

2. If this equipment causes RF interference to a premises radio station of RF-ID, promptly change the

frequency or stop u s ing th e device; co nt ac t th e n umb er b elow an d as k fo r r e com mend at ion s on avoiding radio interference, such as setting partitions.

3. If this equipment causes RF interference to a specified low-power radio station of RF-ID, contact

the number below. Contact Number: 03-5549-6500

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Appendix B Declarations of Conformity and Regulatory Information

Administrative Rules for Cisco Aironet Access Points in Taiwan

This section provides administrative rules for operating Cisco Aironet access points in Taiwan. The rules are provide d in bo th Chi nese an d Eng lish .

Access Points with IEEE 802.11a Radios

Chinese Translation

English Translation

This equipment is lim ited for in door u se.

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Administrative Rules for Cisco Aironet Access Points in Taiwan

All Access Points

Chinese Translation

Appendix B Declarations of Conformity and Regulatory Information

English Translation

Administrative Rules for Low-power Radio-Frequency Devices Article 12 For those low-power radio-freque ncy devices t h at have alread y r ece ived a type- approval, comp an ies,

business units or user s sh ould not ch an ge i ts f reque nci es , in crea se its power o r cha ng e i ts or igi nal features and fu nc tions.

Article 14 The operation of the low-power radio-f requency devices is sub ject to the co nditi ons that no harmful

interference is caused to aviation safety and authorized radio station; and if interference is caused, the user must stop operating the device immediately and can't re-operate it until the harmful interference is clear.

The authorized ra dio stati on means a radi o-com munica tion servi ce oper ating in ac cord ance wit h the Communication Act.

The operation of the low-power radio-f requency devices is sub ject to th e interfe rence caused by the operation of an authoriz ed radio station, by anot her inten tiona l or uninten tional ra diator, by industrial, scientific and medical (ISM) equipment, or by an incidental radiator.

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Appendix B Declarations of Conformity and Regulatory Information

Declaration of Conformity Statements

All the Declaration of Confor mity st atem en ts rela ted to this p rod uct ca n be fou nd at the foll owing URL:

http://www.ciscofax.com

Declaration of Conformity Statements for European Union Countries

The Declaration of Conform ity sta temen t for the Eu ropea n Union c ountrie s is list ed on the foll owing pages:

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Declaration of Conformity Statements for European Union Countries

DECLARATION OF CONFORMITY

with regard to the R&TTE Directive 1999/5/EC

170 West Tasman Drive San Jose, CA 95134 - USA

Declare under our sole responsibility that the product,

Fulfils the essential requirements of the Directive 1999/5/EC

The following standards were applied:

EMC EN 301.489-1 v1.4.1: 2002-08; EN 301.489-17 v1.2.1: 2002-09

Health & Safety EN60950: 2000; EN 50385: 2002

Cisco Systems Inc.

Product: Variant:

AIR-AP1242AG-E-K9 AIR-LAP1242AG-E-K9

Cisco Aironet 1240AG Series IEEE802.11 a/b/g Access Point

Appendix B Declarations of Conformity and Regulatory Information

according to EN 45014

Radio EN 301.893 v 1.2.3: 2003-08

EN 300 328 v 1.5.1: 2004-03

The conformity assessment procedure referred to in Article 10.4 and Annex III of Directive 1999/5/EC has been followed.

The product carries the CE Mark:

Date & Place of Issue: 25 July 2005, San Jose

Signature:

Tony Youssef

Director Corporate Compliance

Cisco Systems, 125 West Tasman Drive San Jose, CA 95134 - USA

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Appendix B Declarations of Conformity and Regulatory Information

Information on Antennas and Power Levels

The AIR-(L)AP1242AG-E-K9 is equipped with antenna connectors to allow the use of dedicated antennas for both the 2.4 GHz and the 5 GHz radio.

This Declaration of Conformity also covers the antennas listed in table 1 and table 2 as they were assessed in combination with the product against the essential requirements of the Directive 1999/5/EC. For each of the antennas, the tables list the maximum conducted output power setting in order to result in a total eirp level below the applicable limit. Any combination of output power and antenna resulting in an eirp level above the regulatory limit is illegal and is outside the scope of this declaration. Antennas not listed in the tables below are also outside the scope of this document.

Antenna

(Cisco P/N)

AIR-ANT4941 2.2 20 17 Dipole Antenna AIR-ANT5959 2 .2 20 17 Diversity Omni-Directional Antenna AIR-ANT1728 5.2 20 15 Omni Ceiling Mount Antenna AIR-ANT2506 5.2 20 15 Omni Mast Mount Antenna AIR-ANT3213 5.2 20 15 Diversity Omni Antenna AIR-ANT1729 6 2 0 15 Patch Wall Mount Antenn a AIR-ANT2012 6 .5 20 13 Diversity Patch Antenna AIR-ANT3549 8.5 20 10 Hemispherical Patch Antenna AIR-ANT2410Y-R 1 0 20 10 Yagi Antenna

Note 1: For all combinations, the total of power level, antenna gain and cable loss is equal to or below 20 dBm (eirp). Outdoor operation in France in the band 2454 to 2483,5 MHz is restricted to 10 dBm eirp

Antenna

Gain

(Cisco P/N)

AIR-ANT5135D-R 4

AIR-ANT5145V-R 4.5

AIR-ANT5160V-R 6

AIR-ANT5170P-R 7

AIR-ANT5195P-R 9.5

(dBi)

Table 1: Dedicated antennas for 2,4 GHz

Antenna

Gain

(dBi)

5470  5725

Declaration of Conformity Statements for European Union Countries

Annex to DofC# 456136rev1

Regulatory

eirp Limit

(1)

(dBm)

Table 2: Dedicated antennas for 5 GHz

Freq Band

Regulatory

eirp Limit

(MHz)

5150 - 5350 23 17

5150 - 5350 23 15

5150 - 5350 23 11

(1)

30 17

(1)

30 17

(1)

30 17

(1)

30 17

(1)

30 17

Setting

(dBm)

Max

Power

(dBm)

Antenna Description

Max Power

Setting

(dBm)

Antenna Description

Dipole Antenna

Diversity Omni Antenna

Omni Antenna

Diversity Patch Antenna

Patch Antenna

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Note 1: Operation in 5470 to 5725 MHz not allowed in France and Czech Republic.

July 25, 2005

Tony Youssef Director Corporate Compliance

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Declaration of Conformity Statements for European Union Countries

Appendix B Declarations of Conformity and Regulatory Information

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APPENDIX

Access Point Specifications

Table C-1 lists the technical specifications for the 1240AG series access point.

Table C-1 Access Point Specifications

802.11G Radio Specifications

Cisco Systems 102066 Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual