D-Link DW-125 Manual de usuario

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D-Link DW-125, DW-120

Wireless LAN USB Adapter

User’s Guide

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Introduction

This User Guide is to guide you to install a Wireless LAN designed for both large and small

business and SOHO environments and let you share a local printer and files, access

internet, and roam about different working places. The attached drivers and utilities support

for Windows 95 (OSR2), Windows 98, and Windows 2000, NT4.0 and Windows

Millennium.

Package Contents

 D-Link DW-125 Wireless LAN USB Adapter

 D-Link Wireless LAN CD-ROM with drivers and utilities

 User’s Guide

 Quick Start Guide

 Warranty Card

Planning your Wireless LAN

There are two usage modes for Wireless LAN, Ad-hoc mode and Infrastructure mode.

Please review your need and build your Wireless LAN.

Ad-hoc Networking

Ad-hoc network also is called Peer-to-Peer network. Without Access Point, notebook users

with D-Link DW-125 Wireless LAN USB Adapter can build Ad-hoc Peer-to-Peer wireless

networks to share files with each other, share a public office printer and other peripheral

resources, even access the Internet via a modem.

Infrastructure Networking

802.11b-compatible Access Point is a bridge or routers connecting to the wired Ethernet

network and wireless network. Through the deployment of Access Point, wireless LAN can

be extended to the reach of a wired network. Therefore, a notebook user with D-Link

DW-125 Wireless LAN USB Adapter can access to fixed local network resources.

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Installation

Installation for Windows 98SE and Windows 2000

Before installing the driver, you will need a copy of the operating system installation media,

usually a CD supplied with your computer or operating system.

On Windows 98 systems, the installation files are sometimes archived on the hard disk in

C:\WINDOWS\OPTIONS\CABS. On Windows 2000 systems, the system may prompt you

to load operating system files from the Windows 2000 installation disk. Installation under

Windows 95 is identical to the procedure given above for Windows 98 and Windows 2000.

The Setup program also installs Configuration Utility in the DW-125 Wireless LAN USB

Adapter in the Program directory. This configuration utility can help you to understand and

maintain your Wireless LAN.

Install Driver

Step 1: Turn on your computer.

Step 2: Insert the D-Link DW-125 Wireless LAN USB Adapter into the USB port. Insert this

adapter firmly without forcing until it seats snugly.

Step 3: Windows finds a new hardware shown Intersil PRISM Wireless LAN USB Adapter

and asks for the driver of USB Adapter. The driver installation wizard guides you through

the steps standard for your operating system.

Step 4: You will be asked to supply CDs or directory path information for the driver. This

driver shall be located in the following directory.

D:\Driver\ (if D:\ is your CD-ROM drive)

Step 5: Windows finds the driver described as Intersil PRISM Wireless LAN USB Adapter.

Follow the directions of Windows dialog boxes to complete the driver installation. After

completing the installation, Windows dialog will display Systems Setting Change and ask to

restart the notebook. Click “Yes” to reboot the computer.

Install Configuration Utility

1. Restart the computer and ensure D-Link Wireless LAN Configuration Utility CD in the

CD-ROM drive.

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You can run the program manually by selecting Run from the Start menu and running

SETUP.EXE from the CD-ROM drive.

D:\SETUP.EXE (if D:\ is your CD-ROM drive)

2. On the

Intersil Prism Wireless LAN USB Adapter – Installation screen, click next to

start software installation. Read the information in the Welcome dialog box and click

“Next”. Then, click ““Yes”” if you accept the Software License Agreement.

3. Enter the name of the Wireless LAN Service Set of the wireless network (SSID) to

which your computer will connect. The name you enter here must match exactly the

name assigned to the access point. Characters, capitalization, and spacing must be

identical.

NOTE: If the access point you wish to associate with has encryption active, you must

also enable encryption on the wireless client. Click Encryption in the Configuration

Utilities after reboot to go to screens where you can enable and configure encryption.

You must set the wireless client for the same Encryption algorithm and Key values as

the access point it will associate. Refer to the Advanced Configuration section for more

details about configuring encryption

4. Select which network mode is suitable for your Wireless LAN. Infrastructure Mode is

default selection. This setting can be changed at any time after installation completion.

5. Accept the default program folder or select where the SETUP.exe stores the

Configuration Utility.

6. Select ““Yes”, I want to restart my computer now”. Reboot your computer by clicking

Finish.

Operation

Orienting the Antenna

The antenna is attached to the end of the USB Adapter. For best use of the antenna:

 Keep the area around the antenna clear from materials that could block or obstruct

radio transmission, such as metal objects, electronic devices, cordless telephones, and

microwave oven.

 If necessary, move your notebook computer a few inches to find a better signal.

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Environmental condition varies with users’ location, a difference of one or two inches

can mean the difference between a strong and a weak signal. Even a slight change in

PC orientation can improve a wireless connection.

 If you have installed the Configuration Utility, you may use the Signal Strength display

in the Link Info to determine the best location and orientation for a wireless network

connection.

LED Indication

The yellow LED of Wireless LAN USB Adapter performs identical functions when indicating

the operational status of the adapter.

Advanced Configuration

Configuration

Mode (Network Mode)

1. Ad-Hoc: The Ad-Hoc network is also known as a peer-to-peer network. An Ad-Hoc

networking does not need Access Point. Instead, the Ad-Hoc network is a loose

association of wireless computers that can communicate with each other using

Wireless LAN USB Adapter in Ad-Hoc Mode

2. Infrastructure: In a wireless infrastructure network, wireless stations communicate

with an Access Point to connect to a wired network. An infrastructure network also can

consist of multiple Access Points. This can extend the coverage area of wireless

network. In this configuration, the wireless network consists of cells. Each cell is a

single Access Point that has different frequency channel to prevent from interfering

each other. A wireless station can move from one Access Point to next without losing

the network connection.

SSID

The SSID is the name of wireless network for Ad-Hoc or Infrastructure mode. To add a

Wireless LAN USB Adapter to an existing wireless network, configure SSID to match the

name of the wireless network

Tx Rate

The Fixed 1, 2, 5.5, 11Mb/s or Fully Auto transmit rates can be selected for Wireless LAN

USB Adapter. Basically, the Fully Auto setting allows the USB Adapter to automatically

switch to a higher Tx rate for better throughput in most environment. A fixed rate setting

does not allow USB Adapter to re-transmit at a lower rate even as a result of many

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retransmissions.

PS Mode (Power Saving Mode)

Enabling power saving mode can extend the battery life of the mobile notebook by allowing

the USB Adapter to sleep, minimizing the power consumption.

Channel

D-Link DW-125 Wireless LAN USB Adapter supports up to 14 channels. However, the

number of available channels varies in different countries and regions. The Access Point

must be set to a channel. To avoid radio interference, adjacent Access Point within the

same infrastructure network (the same SSID) should set to different channel. The channels

of Access Points must be at least five channels apart, while the Wireless LAN USB

Adapters automatically use the same channels as the Access Point and roams between

APs in the same wireless network.

Encryption

The Wireless LAN USB Adapter uses WEP encryption to protect wireless data

communications.

Encryption Selection

WEP uses a combination of 40-bit keys or 128-bit keys to provide security for every data

transmission. In order to decode a data transmission, an identical WEP key must be used

by each wireless client on the network. Choose Enable or Disable to activate the security of

wireless network.

Create with Passphrase

The WEP keys can be generated from a user-defined passphrase. The WEP text string is a

maximum of 32 characters.

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Regulatory Compliance Information

FCC Notice

This device has been tested and found to comply with the limits for a Class A digital device

pursuant to Part 15 of the Federal Communications Commissions Rules and Regulation.

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 the user will be required to correct the interference at his own expense.

However, there is no guarantee that interference will not occur in a particular installation. If

the 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:

 Re-orient or relocate the receiving antenna.

 Increase the separation between the equipment and 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.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions: (1) this device may not cause harmful interference, and (2) this device must

accept any interference received, including interference that may cause undesired

operation.

FCC Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with minimum distance

20cm between the radiator and your body.

CAUTION

Any change or modifications not expressly approved by the grantee of this device could

void the user' authority to operate the equipment.

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European Notice

Equipment with CE marking complies with the R&TTE Directive (1999/5/EC), EMC

Directive (89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the European

Community. Compliance with these directives implies conformity to the following European

Norms or Regulations (in parentheses are the equivalent international standards and

regulations):

 EN 55022 (CISPR 22) – Electromagnetic Interference

 EN 50082-1 (IEC 801-2, IEC 801-3, IEC 802-4) – Electromagnetic Immunity

 EN 60950 (IEC 60950) – Product Safety

 ETS 300 326 – Technical characteristics and test conditions for data transmission

equipment operating in the 2.4GHz ISM band and using spread spectrum modulation

techniques

 ETS 300 826 – Electromagnetic Compatibility (EMC) standard for 2.4GHz wide band

transmission systems and High Performance Local Area Network (HIPERLAN)

equipment

This product may be used in the following EU and EFTA countries: Austria, Belgium,

Denmark, Finland, Germany, Greece, Iceland, Ireland, Italy, Liechtenstein, Luxembourg,

Netherlands, Norway, Portugal, Sweden, Switzerland and United Kingdom. Products not

marked with “Not for use in France” may be used in France.

Specifications

Radio Technology IEEE 802.11b Direct Sequence Spread Spectrum

Operating Frequency 2400-2483.5MHz ISM band

Modulation Schemes DQPSK, DBPSK and CCK

Channel Available 11 channels for United States

13 channels for Europe

14 channels for Japan

Data Rate 11Mbps with fall back rates of 5.5, 2 and 1Mbps

Media Access Protocol CSMA/CA with ACK

RF Power 15dBm

Antenna Gain 0dBi

Antenna Type Integrated Microstrip dual diversity antennas

Operating Voltage 5VDC

Interface USB 1.1

Range Coverage Indoor: 35 - 100 meters (depends on environment)

Outdoor: 100 - 300 meters (depends on environment)

LED Indicator Power & Link status

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