Proxim Harmony 802.11b Manuale utente

reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any

language in any form by any means without the written permission of Proxim, Incorporated.

Trademarks

Harmony, RangeLAN, the RangeLAN logo, RangeLAN2, and Proxim are trademarks of

Proxim, Inc. All other trademarks are the property of their respective owners.

Limited Warranty, Disclaimer, Limitation Of Liability

For a period of one (1) year from the date of purchase by the retail customer, Proxim warrants

the Harmony 802.11b Access Point Model 8550 against defects in materials and workmanship.

Proxim will not honor this warranty if there has been any attempt to tamper with or remove the

product’s external foil label.

This warranty does not cover and Proxim will not be liable for any damage or failure caused by

misuse, abuse, acts of God, accidents, or other causes beyond Proxim’s control, or claim by

any entity other than the original purchaser.

If, after inspection, Proxim determines there is a defect, Proxim will repair or replace the

Access Point at no cost to you. To return defective merchandise to Proxim please call Proxim

Technical Support 1-408-731-2640 to obtain a Return Merchandise Authorization (RMA)

number.

In no event shall Proxim, Incorporated be responsible or liable for any damages arising:

❑From the use of the product

❑From the loss of use, revenue or profit of the product

❑As a result of any event, circumstance, action, or abuse beyond the control of

Proxim, Incorporated

Whether such damages be direct, indirect, consequential, special or otherwise and whether

such damages are incurred by the person to whom this warranty extends or a third party.

Harmony 802.11b Access Point Model 8550 User’s Guide

Part # 7360.0133

Rev. A

WarrantyReturnPolicy

If you have a problem with the Harmony 802.11b Access Point Model 8550, please call Proxim

Technical Support at 1-408-731-2640. Proxim Technical Support will assist with resolving any

technical difficulties you may have with your Proxim product.

After calling Proxim Technical Support, if your product is found to be defective, you may return

the product to Proxim after obtaining an RMA (Return Merchandise Authorization) number.

The product must be returned in its original packaging. The RMA number should be clearly

marked on the outside of the box. Proxim cannot be held responsible for any product returned

without an RMA number, and no product will be accepted without an RMA number.

FCC WARNING

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications. However, there is

no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning

the equipment off and on, the user is encouraged to try to correct the interference by one or

more of the following measures:

❑Reorient or relocate the receiving antenna.

❑Increase the separation between the equipment and the receiver.

❑Connect the equipment into an outlet on a circuit different from that which the

receiver is connected.

❑Consult the dealer or an experienced radio/TV technician for help.

Contents

1. Introduction .................................................................5

The Harmony Family ............................................................................... 6

System Requirements ............................................................................... 7

The Product Package................................................................................ 7

2. Installation ...................................................................8

Installation Procedure............................................................................... 8

Mounting Option .................................................................................... 10

LED Indicators ....................................................................................... 10

Power Requirements .............................................................................. 12

3. Wirefree Operation ....................................................13

Harmony Architecture............................................................................ 13

The IEEE 802.11b Specification............................................................ 14

Roaming Between Harmony 802.11b Access Points............................. 14

Roaming Guidelines ............................................................................ 15

4. Configuration Parameters ........................................17

Basic Settings ......................................................................................... 17

AP Name .............................................................................................. 17

Physical Address .................................................................................. 18

Enable AP ............................................................................................ 18

Partnered APC ..................................................................................... 18

Channel ................................................................................................ 18

Supported Clients................................................................................. 19

SSID ..................................................................................................... 19

IP Addressing....................................................................................... 19

Security Settings..................................................................................... 20

WEP Encryption .................................................................................. 20

WEP Key Size...................................................................................... 21

WEP Keys ............................................................................................ 21

Advanced Settings.................................................................................. 22

Supported Rates ................................................................................... 22

RTS/CTS .............................................................................................. 22

5. Performance Hints ....................................................24

Microwave Ovens .................................................................................. 24

Range...................................................................................................... 24

6. Troubleshooting ........................................................26

How to Obtain Help with Your LAN Installation.................................. 26

LED Error Codes.................................................................................... 26

Common Problems and Solutions .......................................................... 27

A. Parameters ................................................................30

B. IEEE 802.11b Direct Sequence Channels ...............31

C. Harmony 802.11b Access Point Specifications .....32

D. How to Reach Technical Support............................33

Index...............................................................................34

1. Introduction

Thank you for choosing Proxim’s Harmony 802.11b Access Point Model 8550, a

member of Proxim’s Harmony wirefree infrastructure family. The Harmony product

line is the first wirefree networking solution to support all current and future wireless

LAN standards, including OpenAir, IEEE 802.11b, and future 10 Mbps frequency

hopping and 5 GHz technologies, within a single, homogeneous architecture. Harmony

provides centralized management, configuration, and security for a wireless LAN.

Harmony protects current and future wirefree infrastructure investments by supporting

all leading and forthcoming wireless LAN protocols. Existing RangeLAN2 and

OpenAir-compatible products and existing IEEE 802.11b devices are all compatible

with Harmony. Customers can seamlessly transition to new LAN standards by adding

low-cost access points without changing the management interface or disturbing

existing users.

Harmony’s SmartArchitectureTM is the first wirefree management system to provide

one-click, system-wide security updates and remote office infrastructure management

through a single Web-based interface.

Harmony Access Points can be connected to any portion of the Ethernet network,

eliminating the need for special wirefree subnets common in other installations. Also,

Harmony clients can roam seamlessly anywhere there is wirefree coverage, without the

need for extra client software. In addition, Harmony SmartAttachTM software simplifies

installation by automatically discovering and configuring new access points upon

connection to the Ethernet network.

Proxim is the leading supplier of wirefree networking solutions. Proxim’s unmatched

expertise in spread spectrum radio networking technology, combined with the

company’s extensive experience serving the communication needs of the mobile

computing user, have kept Proxim at the forefront of the wireless LAN market.

The Harmony Family

The Harmony 802.11b Access Point Model 8550 is a member of a product family that

provides a complete wirefree networking solution.

❑The Harmony Access Point Controller Model 7560 centralizes the manage-

ment, security, and filtering capabilities of a wireless LAN. The Access Point

Controller communicates with Harmony Access Points over the Ethernet

network to provide wirefree network access for mobile clients. The Access

Point Controller can support multiple Access Points, even if each Access Point

follows a different wireless standard.

❑The Harmony Access Point is a networking bridge that operates at Layer 2 of

the OSI networking model. Working in conjunction with a Harmony Access

Point Controller, the Access Point forwards packets between its radio and the

Ethernet network. Two models of the Harmony Access Point are available to

support either the OpenAir or IEEE 802.11b wireless standards: the OpenAir

Access Point Model 7550 and the 802.11b Access Point Model 8550. Note

that the Harmony Power System operates only with the 802.11b Access Point.

❑The Harmony PC Card is a wireless LAN adapter that fits into a PCMCIA

Type II slot in a laptop computer. Two models of the Harmony PC Cards are

available to support either the OpenAir or IEEE 802.11b wireless standards.

❑The optional Harmony Power System Model 7562 provides remote DC

power to Harmony 802.11b Access Points over the unused pins of a twisted

pair Ethernet cable.

System Requirements

To begin using the Harmony 802.11b Access Point, you must have the following

minimum requirements:

❑At least one Harmony Access Point Controller

❑An Ethernet (10Base-T) LAN switch or hub

❑At least one 802.11b PC Card

The Product Package

Each Harmony 802.11b Access Point comes with:

❑One Harmony 802.11b Access Point Model 8550

❑One power adapter (12V, 1 Amp)

❑One Harmony 802.11b Access Point Model 8550 User’s Guide

❑One warranty registration card

2. Installation

This chapter describes the installation procedure for the Harmony 802.11b Access

Point and includes a description of the LEDs found on the unit.

Installation Procedure

Follow these steps to install the Harmony 802.11b Access Point Model 8550.

Note:

YoumustinstallaHarmonyAccessPointControllerbeforeinstallingaHarmony

Access Point.

1. Determine the best location for the Harmony 802.11b Access Point. Keep in

mind the following considerations:

❑The length of the Ethernet cable that connects the Access Point to the network

must not exceed 100 meters.

❑Try to place the Access Point on a flat, sturdy surface as far from the ground

as possible, such as on top of a desk or bookcase, keeping clear of metal

obstructions and away from direct sunlight.

❑Try to centrally locate the Access Point so that it will provide coverage to all

of the mobile devices in the area.

❑If you are not using the Harmony Power System to supply power to the

Access Point, the distance between the Access Point and a power outlet

cannot exceed the length of the power adapter’s cable.

2. Place the Access Point in the desired location. An optional wall mount is avail-

able for the Access Point. Refer to the section entitled “Mounting Option” later

in this chapter for details.

3. Attach one end of an Ethernet cable to the Access Point and attach the other end

to the 10Base-T port of a network hub, switch, router, or patch panel.

Note:

The Harmony 802.11b Access Point does not support 100Base-TX; it only

supports 10Base-T.

4. If you are not using the Harmony Power System to supply power to the Access

Point or want to connect the Access Point to both the Power System and an AC

power source, attach one end of the AC power adapter, included in the product

package, to the back of the Access Point and the other end to a power outlet.

Note:

Use the Access Point only with the power adapter supplied by Proxim in the

product package. Using another power supply may damage the Access Point. If

youwanttousetheAccessPointinconjunctionwiththeHarmonyPowerSystem,

refer to the Harmony Power System Model 7562 User’s Guide for instructions.

All three LEDs on the top of the Access Point will light up when the unit is powered

on. Next, the Status LED will turn amber and then green to indicate that the unit is

operational. Note that the Status LED will remain amber if the Access Point cannot

find an AP Controller to partner with.

In addition, the green Link LED will turn on to indicate that the Access Point has a

network connection.

5. The AP Controller will automatically detect and configure the Access Point over

the network. Refer to Chapter 4 and the Harmony Access Point Controller Model

7560 User’s Guide for more information on how to configure an Access Point.

Mounting Option

The Harmony 802.11b Access Point is designed to sit on a desktop. In addition, an

optional mounting bracket is available for purchase so that the unit may be mounted to

a wall or ceiling.

Follow these steps to attach the mounting bracket to the Access Point:

1. Remove the two rubber feet on the bottom of the Access Point. Note that the

rubber feet are attached to the unit with an adhesive.

2. Underneath the rubber feet there are three unthreaded mounting holes that accept

M5 thread forming screws. Align the holes of the mounting bracket with these

holes.

3. Locate the screws provided with the mounting bracket.

4. Insert the screws into the three holes of the mounting bracket and Access Point

(that is, the holes aligned in Step #2 above).

5. Tighten the screws with a screwdriver to attach the mounting bracket to the

Access Point.

LED Indicators

There are three LEDs on the top panel of the Harmony 802.11b Access Point, as shown

in Figure 1.

❑Status LED: This LED, located on the left side (with the unit orientated so

that you can read the Proxim logo), is green when the unit is powered up and

operational. The LED is amber during initialization and when the Access

Point is not partnered with a Harmony AP Controller. This LED will blink red

in a repeating pattern if a problem occurs with the unit during operation. See

Chapter 6 for a discussion of these patterns.

❑Radio LED: This LED, located in the center of the three LEDs, blinks green

when the Access Point receives data packets over its radio.

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