D-Link AirPlusXtremeG DWL-G650 Manuale utente

Manual

Building Networks for People

2.4GHz up to 54Mbps

DWL-G650

D-Link

AirPlusX

TREME

Wireless Cardbus Adapter

Contents

Package Contents..........................................................................................3

Introduction ......................................................................................................4

Wireless Basics..............................................................................................7

GettingStarted ..............................................................................................11

Using the Configuration Utility .................................................................... 14

Networking Basics....................................................................................... 21

Troubleshooting............................................................................................ 34

TechnicalSpecifications.............................................................................. 39

Contacting Technical Support..................................................................... 41

Warranty and Registration .......................................................................... 42

Contents of Package:

D-Link AirPlusXtreme G DWL-G650

2.4 GHz - 54Mbps Wireless Cardbus Adapter

Manual and Warranty on CD

Quick Installation Guide

Package Contents

If any of the above items are missing, please contact your reseller.

System Requirements for Configuration:

An 802.11g Access Point (for optimal performance), or an

802.11b Access Point (e.g., DWL-900AP) for Access Point

mode, or another 802.11g wireless adapter (DWL-G650) for

laptops or an 802.11b wireless adapter (e.g., DWL-520 for

desktops) for Peer-to-Peer

At least 32 MB of memory and a 300 MHz processor

Windows XP, Windows 2000, Windows Me, or Windows 98SE

A laptop or notebook computer with an available 32-bit

Cardbus slot

mode.

Introduction

The D-Link AirPlusXtremeGDWL-G650 Wireless Cardbus Adapter is an enhanced

802.11g high-performance, wireless adapter that supports high-speed wireless networking

at home, at work or in public places.

Unlike most network cards, the DWL-G650 provides speeds of up to 54 Mbps (compared

to the standard 11 Mbps) when used with other D-LinkAirXtremeGproducts. This means

that you do not need to change your entire network to maintain connectivity. You may

sacrifice some of 802.11g’s speed when you mix 802.11b and 802.11g devices, but you

will not lose the ability to communicate when you incorporate the 802.11g standard into

your 802.11b network. You may choose to slowly change your network by replacing the

802.11b devices with 802.11g devices gradually.

In addition to offering faster data transfer speeds when used with other 802.11g products,

the DWL-G650 has the newest, strongest, most advanced security features available

today.

For home users that will not incorporate a radius server in their network, the security for

the DWL-G650, used in conjunction with other 802.11g products, will be much stronger

than ever before. No longer will you have to manually input a new WEP key frequently to

ensure security, with the DWL-G650, you will automatically receive a new key every

time you connect, vastly increasing the safety of your communications.

The DWL-G650 is compatible with existing 802.11b devices such as the D-Link Air,

AirPlus and AirPro family of products including the DWL-520, DWL-520+ and the

DWL-AB520 Wireless PCI Adapter, the DI-714 Wireless Router/Access Point and the

DWL-120 Wireless USB Adapter. (When used with 802.11b devices, the DWL-G650

will reach speeds at up to 11Mbps.)

It is an ideal way to connect one laptop computer to a Wireless Local Area Network

(WLAN.) After completing the steps outlined in the Quick Installation Guide

(included in the package) you will have the ability to share information and resources,

such as files and printers, and take full advantage of a “connected” environment for

work or play!

The DWL-G650 includes software drivers for the most popular Microsoft Windows

operating systems (Windows XP, Windows 2000, Windows Me, Windows 98) and can

be integrated into a larger network, running, in either

Peer-to-Peer

mode (without an

Access Point) or mode (with an Access Point.)

Please take a look at

our Getting Started section in this manual to see examples of typical network setups

using the DWL-G650 in both Access Point and Peer-to-Peer modes.

This manual provides a quick introduction to wireless technology and its application

as it relates to networking. Take a moment to read through this manual and get

acquainted with wireless technology.

Access Point

LEDS

LED stands for Light-Emitting Diode. The DWL-G650 has the following

LEDs:

LED LED Activity

A blinking light indicates network activityActivity

Operates in the 2.4GHz frequency range

Features

nBackwards compatible with the 802.11b standard to provide a wireless data

rate of up to 11Mbps

D-Link AirPlusXtremeG DWL-G650 wireless data rate of up to 54Mbpsn

nUser-friendly configuration and diagnostic utilities

Utilizes OFDM technology (Orthogonal Frequency Division Multiplexing)

D-Link wireless products are based on industry standards to provide easy-to-

useandcompatiblehigh-speedwirelessconnectivitywithinyourhome,business

or public access wireless networks. Strictly adhering to the IEEE standard, the

D-Link wireless family of products will allow you to securely access the data

you want, when and where you want it. You will be able to enjoy the freedom

that wireless networking delivers.

A wireless local area network (WLAN) is a cellular computer network that

transmits and receives data with radio signals instead of wires. Wireless LANs

are used increasingly in both home and office environments, and public areas

suchasairports,coffeeshopsanduniversities.InnovativewaystoutilizeWLAN

technology are helping people to work and communicate more efficiently.

Increased mobility and the absence of cabling and other fixed infrastructure

have proven to be beneficial for many users.

Wireless Basics

Wireless users can use the same applications they use on a wired network.

Wirelessadaptercardsusedonlaptopanddesktopsystemssupportthesame

protocols as Ethernet adapter cards.

Under many circumstances, it may be desirable for mobile network devices to

linktoaconventionalEthernetLANinordertouseservers,printersoranInternet

connection supplied through the wired LAN. A Wireless Router is a device

used to provide this link.

TheDWL-G650isalsocompatiblewith802.11b wirelessproducts,whichinclude:

2.4GHz Wireless Cardbus Adapters used with laptop computers

(D-Link Air DWL-650, D-Link AirPlus DWL-650+)

2.4GHz Wireless PCI cards used with desktop computers

(D-Link Air DWL-520, D-Link AirPlus DWL-520+)

Enhanced 2.4GHz Wireless Access Point

(D-Link AirPlus DWL-900AP+)

Enhanced 2.4GHz Wireless Broadband Router

(D-Link AirPlus DI-614+)

Wireless Basics (continued)

People use wireless LAN technology for many different purposes:

Mobility - Productivity increases when people have access to data in any

locationwithintheoperatingrangeoftheWLAN. Managementdecisionsbased

on real-time information can significantly improve worker efficiency.

Low Implementation Costs–WLANs(WirelessLocalAreaNetworks)are

easytosetup,manage,changeandrelocate.Networksthatfrequentlychange,

both physically and logically, can benefit from WLANs ease of implementation.

WLANscanoperateinlocationswhereinstallationofwiringmaybeimpractical.

Installation Speed and Simplicity - Installing a wireless LAN system can

be fast and easy and can eliminate the need to pull cable through walls and

ceilings.

Network Expansion - Wireless technology allows the network to go

where wires cannot.

Scalability – Wireless Local Area Networks (WLANs) can be configured in a

variety of topologies to meet the needs of specific applications or existing

infrastructures. Configurations are easily changed and range from peer-to-

peer networks suitable for a small number of users to larger infrastructure

networks to accommodate hundreds or thousands of users, depending on the

number of wireless devices deployed.

Standards-Based Technology

The DWL-G650 Wireless Cardbus Adapter increases the data rate up to 54

Mbps within the 2.4GHz band, utilizing OFDM technology.

Thismeansthatinmostenvironments,withinthespecifiedrangeofthisdevice,

you will be able to transfer large files quickly or even watch a movie in MPEG

format over your network without noticeable delays. This technology works by

transmittinghigh-speeddigitaldataoveraradiowaveutilizingOFDM (Orthogonal

Frequency DivisionMultiplexing) technology.OFDM worksbysplittingtheradio

signalintomultiplesmallersub-signalsthatarethentransmittedsimultaneously

atdifferentfrequenciestothereceiver. OFDM reduces the amount ofcrosstalk

(interference)insignaltransmissions.TheD-LinkDWL-G650willautomatically

sense the best possible connection speed to ensure the greatest speed and

range possible.

The DWL-G650 is backwards compatible with 802.11b devices. This means

that if you have an existing 802.11b network, the devices in that network will be

compatible with 802.11g devices at speeds up to 11Mbps in the 2.4GHz range.

Also based on the IEEE 802.11b standard,the DWL-G650 isinteroperable with

existing compatible 2.4GHz wireless technology with data transfer speeds of

up to 11Mbps.

Wireless Basics (continued)

Installation Considerations

The D-Link AirExtreme DWL-G650 lets you access your network, using a

wireless connection, from virtually anywhere. Keep in mind, however, that the

number, thickness and location of walls, ceilings, or other objects that the

wireless signals must pass through, may limit the range. Typical ranges vary

depending on the types of materials and background RF (radio frequency)

noise in your home or business. The key to maximizing wireless range is to

follow these basic guidelines:

1. Keep the number of walls and ceilings between the DWL-G650 and

other network devices to a minimum - each wall or ceiling can reduce

your D-Link AirExtreme Wireless product’s range from 3-90 feet (1-30

meters.) Position your devices so that the number of walls or ceilings is

minimized.

2. Be aware of the direct line between network devices. A wall that is

1.5 feet thick (.5 meters), at a 45-degree angle appears to be almost 3

feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters)

thick! Try to make sure that devices are positioned so that the signal will

travel straight through a wall or ceiling for better reception.

3. Building Materials make a difference - a solid metal door or aluminum

studs may have a negative effect on range. Try to position wireless

devices and computers with wireless adapters so that the signal passes

through drywall or open doorways and not other materials.

4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical

devices or appliances that generate RF noise.

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