D-Link Air® DWL-122

2.4GHz

Wireless USB Adapter

Manual

Building Networks for People

Contents

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

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

Wireless Basics .................................................................................... 6

Inserting and Removing the DWL-122; Using the Extension Cord ...... 9

Getting Started ................................................................................... 10

Using the Configuration Utility with Windows OS ............................... 13

Using the Configuration Utility with Macintosh OS ............................. 20

Networking Basics .............................................................................. 25

Troubleshooting .................................................................................. 38

Technical Specifications ..................................................................... 41

Contacting Technical Support ............................................................. 43

Warranty and Registration .................................................................. 44

2

Package Contents

Contents of Package:



D-Link Air DWL-122

2.4 GHz Wireless USB Adapter



Manual on CD-ROM



Quick Installation Guide



USB Extension Cable

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

System Requirements:



A computer or laptop with an available USB port



Windows XP/2000/Me/98SE



Mac OS X (v10.2x or later)



At least 32MB of memory and a 300MHz processor



Properly installed and working USB Controller

3

Introduction

The D-Link Air DWL-122 Wireless USB Adapter is a convenient Plug & Play USB

1.1 solution that brings wireless networking to your laptop or desktop PC.

With transfer rates up to 11Mbps* you can connect to a wireless network at home, at the office or at any wireless hotspot. Now you can stay connected wherever you are and wherever you go.

The DWL-122 is Wi-Fi compliant, meaning that it can connect and interoperate with other 802.11b Wi-Fi-compliant wireless routers, access points and adapters.

The DWL-122 connects to any available USB port on a laptop or desktop

Windows and Macintosh-based computer and also includes a standard USB extension cable. With the optional USB extension cable, the DWL-122 can be positioned virtually anywhere at a workstation to achieve the best available wireless signal reception - whether that workstation is in your office, on your deck or patio, by the pool, at the local coffee shop, or in an airport terminal while waiting to board your next flight.

The adapter works with Apple Mac OS X (10.2x or later) Jaguar, Microsoft

Windows XP, Windows 2000 and other Windows operating systems to ensure that you’ll be up and running on a wireless network in just a matter of seconds.

Using its default settings, the DWL-122 automatically connects to other D-Link wireless products as soon as it’s active.

In addition to featuring 64- or 128-bit WEP encryption, the DWL-122 has the newest, strongest and most advanced security features available today.

1

When used with other 802.11 WPA (Wi-Fi Protected Access) and 802.1x compatible products in a network with a RADIUS server, the security features include:

WPA: Wi-Fi Protected Access which authorizes and identifies users based on a secret key that changes automatically at regular intervals. WPA uses

TKIP (Temporal Key Integrity Protocol) to change the temporal key every 10,000 packets (a packet is a kind of message transmitted over a network.) This ensures much greater security than the standard WEP security. (By contrast, the previous WEP encryption implementations required the keys to be changed manually.)

802.1x: Authentication which is a first line of defense against intrusion. In the authentication process, the Authentication server

2

verifies the identity of the client attempting to connect to the network. Unfamiliar clients would be denied access.

1

2

WPA will be available soon as a download for Mac users.

4

Introduction (continued)

For home users that will not incorporate a RADIUS server in their network, the security for the DWL-122, used in conjunction with other WPA-compatible 802.11 products, will still be much stronger than ever before. Utilizing the

Pre- Shared

Key mode of WPA, the DWL-122 will obtain a new security key every time it connects to the 802.11 network. You only need to input your encryption information once in the configuration menu. No longer will you have to manually input a new

WEP key frequently to ensure security. With the DWL-122, you will automatically receive a new key every time you connect, vastly increasing the safety of your communication.

*”Maximum wireless signal rate based on IEEE Standard 802.11b specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and consturction, and network overhead lower actual data throughput rate.”

5

Features and Benefits



Compact size for placement anywhere.



Convenience of Plug & Play installation.



Fully 802.11b compatible.

 Powered by the USB port; no external power source is needed.



USB 1.1 standard.



Better Security with 802.1x and WPA

1

- In addition to 64-,128-bit WEP encryption, you can also securely connect to a wireless network using

802.1x for wireless authentication, as well as WPA (Wi-Fi Protected

Access) providing you a much higher level of security for your data and communication than has previously been available.



Supports

Infrastructure networks via an access point or router and

Peer-to-Peer communication in Ad-Hoc mode.

 User-friendly configuration and diagnostic utilities.



Connects at up to 328 feet indoors.

2



One year warranty (USA only).

1

WPA will be available soon as a download for Mac users

2

Environmental factors may adversely affect range

6

Features

USB connector

Used to connect the

DWL-122 to your computer

Internal Antenna

Used to wirelessly connect to 802.11b networks

Link/Activity LED

Power - Indicates that the DWL-122 is properly installed in the computer.

Link - Blinks when data is being transmitted through the wireless connection.

Wireless Basics

D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless connectivity within your home, business or public access wireless networks. D-Link wireless products will allow you access to the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking brings.

A Wireless Local Area Network (WLAN) is a computer network that transmits and receives data with radio signals instead of wires. WLANs are used increasingly in both home and office environments, and public areas such as airports, coffee shops and universities. Innovative ways to utilize WLAN 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 users can use the same applications they use on a wired network.

Wireless adapter cards used on laptop and desktop systems support the same protocols as Ethernet adapter cards.

7

Wireless Basics (continued)

People use wireless LAN technology for many different purposes:

Mobility

- Productivity increases when people have access to data in any location within the operating range of the WLAN. Management decisions based on real-time information can significantly improve worker efficiency.

Low Implementation Costs

– WLANs are easy to set up, manage, change and relocate. Networks that frequently change can benefit from WLANs ease of implementation. WLANs can operate in locations where installation of wiring may be impractical.

Installation and Network Expansion

- Installing a WLAN system can be fast and easy and can eliminate the need to pull cable through walls and ceilings. Wireless technology allows the network to go where wires cannot go

- even outside the home or office.

Scalability

– WLANs can be configured in a variety of topologies to meet the needs of specific applications and installations. 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.

Inexpensive Solution

- Wireless network devices are as competitively priced as conventional Ethernet network devices.

8

Wireless Basics (continued)

Installation Considerations

The D-Link Air DWL-122 lets you access your network, using a wireless connection, from virtually anywhere within its operating range. 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-122 and other network devices to a minimum - each wall or ceiling can reduce your D-

Link 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! Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better reception.

3

Building Materials can impede the wireless signal - 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 extreme RF noise.

9

Getting Started

Inserting the DWL-122

Insert the DWL-122 into an available USB port.

Using the DWL-122 with the extension cord

Plug one end of the USB extension cord into the USB port on your computer and plug the other end into the DWL-122.

Removing the DWL-122 (Windows XP)

After installing the DWL-122, the icon below will appear in the taskbar at the bottom of the screen (for WinXP service pack I and above).

DWL-122 USB Adapter

Before you disengage the DWL-

122 from the USB port, you must click on the icon (illustrated above) that resides in the taskbar.

When the screen at right appears, highlight the DWL-122.

Click

Stop

Windows will notify you when it is safe to remove the DWL-122 from the USB port.

10

Getting Started (continued)

With its default settings, the DWL-122 will connect with other

D-Link Air products, right out of the box.

There are basically two modes of networking:

Infrastructure – using an access point or router, such as the DI-614+.

Ad-Hoc – directly connecting to another computer, for Peer-to-Peer communication, using wireless network adapters on each computer, such as two or more DWL-122 wireless USB adapters.

On the following pages we will show you an example of an

Infrastructure

Network and an Ad-Hoc Network.

An Infrastructure network contains an access point or router. The

Infrastructure Network example shown on the following page contains the

D-Link network devices listed here; (your existing network may be comprised of other devices).

A wireless router-

D-Link AirPlus DI-614+

A laptop computer with a USB wireless network adapter -

D-Link Air DWL-122

A desktop computer with a USB wireless network adapter -

D-Link Air DWL-122

A Cable modem -

D-Link DCM-201

11

Getting Started (continued)

Setting up a Wireless Infrastructure Network

For a typical wireless setup at home (as shown here), please do the following:

2

1

6

3

4

5

You will need broadband Internet access (a Cable or DSL-subscriber line into your home or office).

Consult with your Cable or DSL provider for proper installation of the modem.

Connect the Cable or DSL modem to your broadband router. (See the

Quick Installation Guide

included with your router.)

Install the D-Link Air DWL-122 wireless USB adapter into an available

USB port on your desktop computer. (See the Quick Installation Guide

included with the DWL-122.)

If you are connecting a laptop computer to your network, you can install the DWL-122 into an available USB port on your laptop. (See the Quick

Installation Guide included with the DWL-122.)

A RADIUS server is optional. Connect a RADIUS server to your network to use all the features of WPA. (Without a RADIUS server you can still use the WPA Pre-Shared Key mode.) RADIUS Authentication can also be provided by another service provider over the Internet and remote to your network site.

12

Getting Started (continued)

Setting up a Wireless Ad Hoc Network

Install the D-Link Air DWL-122 Wireless USB adapter into the desktop computer. (See the Quick Installation Guide included with the product

for installation instructions.)

Install another DWL-122 into the laptop computer.

(See the Quick Installation Guide included with the product for

installation instructions.)

Set the wireless configuration for the adapters to Ad-Hoc mode, set the adapters to the same channel, and assign an IP address to each computer on the Ad-Hoc network. (See box below.)

IP Address

When assigning IP addresses to the computers on the network, please remember that the

IP address for each computer must be in the same

IP address range as all the computers in the network, and the subnet mask must be exactly the same for all the computers in the network.

For example: If the first computer is assigned an IP address of 192.168.0.2 with a subnet mask of 255.255.255.0, then the second computer can be assigned an IP address of 192.168.0.3 with a subnet mask of 255.255.255.0, etc.

IMPORTANT: If computers or other devices are assigned the same IP address, one or more of the devices may not be visible on the network.

13

Using the Configuration Utility

D-Link Air DWL-122 uses the Configuration Utility as the management software. The utility provides the user an easy interface to change any settings related to the wireless adapter. After you have completed the installation of the DWL-122 (refer to the Quick Installation Guide that came with your purchase) whenever you start the computer, the Configuration Utility starts automatically and the system tray icon is loaded in the toolbar (see illustration below.*) Clicking on the utility icon will start the Configuration Utility. Another way to start the Configuration Utility is to click on Start>Programs>D-Link

Air >D-Link Air Utility.

If you are using Windows XP, you can use either the Zero Configuration Utility or the D-Link Configuration Utility.

To use the D-Link Configuration Utility with XP, right-click on the wireless network icon in the taskbar in the lower right-hand corner of your computer screen.

In the window that appears, select

View Available Wireless Networks

and click the Advanced button. The screen at right will appear.

Select the

Wireless Networks tab.

Uncheck the box in the properties window that enables windows configuration.

After you have done this, you can then use the D-Link

Configuration Utility with XP by clicking on the D-Link

Configuration Utility icon.

If the icon does not display in the taskbar, then click on this icon on your desktop to open.

*Configuration Utility icon in the system tray

14

Using the Configuration Utility with Windows OS

(continued)

Status:

Displays the MAC address of the access point or router to which the DWL-

122 is associated

Link Info

SSID:

The Service Set Identifier is the name assigned to the wireless network. The factory SSID setting is

de-

fault.

Frequency:

802.11b indicates that the

DWL-122 is communicating in the 2.4GHz band.

Wireless Mode:

Either Infrastructure or Ad-Hoc will be displayed here. (Please see the Getting

Started section in this manual for an explanation of these two modes.)

Encryption:

You can see if WEP (Wired Equivalent Privacy) is Enabled or Disabled here.

Tx Rate:

The default setting is Auto; Tx Rate settings are automatically determined for an optimal speed up to a maximum of 11Mbps.

Channel:

The default setting is Auto. The channel selection is automatically determined by the DWL-122.

Signal Strength:

Displays the signal strength of the DWL-122’s wireless connection to the access point or router.

Packet Count:

Displays the statistics of the data packets that are transmitted and received.

Rescan Button:

Rescans for the strongest signal with the current SSID and associates with that access point or router.

15

Using the Configuration Utility with Windows OS

(continued)

Configuration

SSID:

Service Set Identifier is a name that identifies a wireless network. Access points and wireless devices attempting to connect to a specific WLAN (Wireless Local Area Network) must use the same SSID. The default setting is default.

Wireless Mode:

Click on the pull-down menu; select from the following options:

Infrastructure - connecting to the WLAN using an access point. (This is the

default setting).

Ad-Hoc – wireless mode used when connecting directly to a computer equipped with a wireless adapter in a

Peer-to-Peer environment.

IP Settings

Data Encryption:

Select Enabled or Disabled.

Authentication:

Choose one of the following modes:

Open Authentication – the DWL-122 is visible to all devices on the network.

Shared Authentication – allows communication only with other devices with identical WEP settings.

Auto – will automatically adjust to the Authentication mode of the wireless access point or router.

Key Length:

Select the key length and either ASCII (e.g., a word) or hexadecimal format.

Keys 1-4:

Select the default key.

Hexadecimal digits consist of the numbers 0-9 and the letters A-F.

ASCII (American Standard Code for Information Interchange) is a code for representing English letters as numbers from 0-127.

IP Settings:

When you click IP Settings in the Configuration window, the pop-up screen above will appear. Configure the IP Settings in this window.

Click Apply to save changes.

16

Using the Configuration Utility with Windows OS (continued)

Ad-Hoc Channel:

All devices in the Ad-Hoc network must be set to the same channel.

Advanced

Profile IP Settings:

You can

Enable or Disable the IP Settings portion of your profile here. If you select

Disable you will need to configure the

IP address information each time you connect to a network. If you select

Enable you will maintain the same IP address information each time you connect to a network.

Power Mode:

Disable -This default setting consumes the most power.

Enable - This setting consumes the least power.

Launch Utility on Startup:

Select Enable or Disable.

Data Packet Parameter:

Select the parameters here.

Fragmentation Threshold:

This value should remain at its default setting of 2432. If you experience a high packet error rate, you may slightly increase your Fragmentation

Threshold within the value range of 256 to 2432. Setting the Fragmentation

Threshold too low may result in poor performance.

RTS Threshold:

This value should remain at its default setting of 2432. If inconsistent data flow is a problem, only a minor modification should be made.

Click Apply if you have made any changes.

17

Using the Configuration Utility with Windows OS (continued)

Available Network:

The top section of the window displays the Available Networks. Scroll up and down the list and highlight the network to which you wish to connect. Click on the Connect button.

Profile:

In the lower half of the screen, you can manage the profiles that you have created for the wireless network at home, at the office and in public places. Scroll up and down and highlight the profile that you wish to configure. You can Add or Remove a profile, or configure the Properties of the profile in order to connect with an available network.

Site Survey

Refresh:

Click on Refresh to get the most updated list of available networks.

Configure:

Highlight an existing network and click Configure; the configuration window on the next page will appear.

Advanced:

Highlight a network; click

Advanced and the screen on the next page will appear.

Add:

Click Add and the screen on the next page will appear.

Remove:

Highlight a network profile; click Remove to remove a network from the profile list.

Properties:

Highlight a network profile; click Properties and the screen on the next page will appear.

Connect:

Highlight a network profile; click Connect to connect to that network.

Rescan:

Click Rescan to rescan and connect to the strongest signal with the current

SSID.

18

Using the Configuration Utility (continued)

Site Survey > Add

Advanced

In this window you can select the type of network connection.

Click OK to save the changes.

If you clicked on Add, you can configure, in this window, all the properties of a profile that you wish to add to the network.

If you clicked on

Configuration

or Properties you can configure, in this window, all the properties of a profile that already exists in the network.

If you select WPA in the

Authentication field, please see detailed instructions for configuring WPA on the following pages.

Configuration, Add or Properties

If you choose to use the

IEEE

802.1X feature, please see the detailed instructions on the following pages.

Click OK to save the changes.

19

Using the Configuration Utility (continued)

Site Survey > Configuration > 802.1X

To use 802.1x and to configure its settings, please do the following:

IEEE 802.1X -

Select Enabled.

Click Authentication Config

Advanced Security Settings

Select the EAP Type you want to use. Configure the information needed for authenticating.

Inner Authentication Protocol.

For an explanation of the terms shown in this window please see the following pages.

Trusted CA List.

Click OK.

20

Using the Configuration Utility (continued)

802.1x > Advanced Security Settings > EAP Types

EAP Type

EAP-TLS

EAP-

MSCHAPv2

LEAP

EAP-TTLS

Inner Authentication

Protocol

PAP

CHAP

MSCHAP

MSCHAPv2

Information needed for Authenticating

Certificate

User Name

User Name

Password

Domain Name

User Name

Password

TTLS Identity

User Name

Password

TTLS Identity

User Name

Password

TTLS Identity

User Name

Password

Domain Name

TTLS Identity

User Name

Password

Domain Name

21

Using the Configuration Utility (continued)

802.1x > Advanced Security Settings > EAP Types (continued)

EAP Type

EAP-TTLS

PEAP

Inner Authentication

Protocol

EAP-MD5

EAP-

Generic Token Card

EAP-MSCHAPv2

EAP-MD5

EAP-MSCHAPv2

EAP-

Generic Token Card

Information needed for Authenticating

TTLS Identity

User Name

Password

TTLS Identity

User Name

Password

TTLS Identity

User Name

Password

Domain Name

User Name

Password

User Name

Password

Domain Name

User Name

Password

802.1x > Advanced Security Settings > Definitions of Terms

Validate Server Certificate:

Check Validate Server Certificate to verify the identity of the authentication server based on its certificate when using EAP-TTLS, PEAP, and EAP-TLS. (This is checked by default.)

Certain protocols, such as EAP-TTLS, PEAP, and EAP-TLS, allow you to verify the identity of the authentication server as the server verifies your identity. This is called mutual authentication.

You can select trusted authentication server certificates using the Add button at the

Trusted CA List (at the bottom of the Advanced Security Settings page).

22

Using the Configuration Utility (continued)

802.1x > Advanced Security Settings > Definitions of Terms (continued)

Domain Name:

Each server has a domain name that uniquely identifies it. That domain name is normally contained in the

Subject CN field of the server certificate. A server domain name ends with the name of a larger administrative domain, to which the server belongs.

TTLS Identity:

EAP-TTLS has a unique feature that other protocols do not offer. Because it sets up an encrypted tunnel for your credentials, it is also able to pass your login name through that tunnel. That means that not only are your credentials secure from eavesdropping, but your identity is protected as well. Thus, with EAP-TTLS you have two identities: an inner one and an outer one. The inner identity is your actual user name. Your outer identity can be completely anonymous. Set your outer identity in the TTLS Identity field.

Trusted CA List:

The Trusted CA List allows you to configure which authentication servers you trust for the purpose of logging you into the network.

Click Add at the Trusted CA List at the bottom of the Advanced Security Settings page.

Select the Trusted CA that you want to add and click OK.

23

Using the Configuration Utility (continued)

Authentication > WPA

Select the available network to which you want to connect.

Click Configure.

Select WPA in the

Authentication field.

Click

Authentication

Config

After you click Authentication Config, the Advanced Security Settings screen will appear. Complete the Advanced Security Settings configuration. Please see pages

17-20 of this manual to find out more about the Advanced Security Settings.

24

Using the Configuration Utility (continued)

Authentication > WPA-PSK

Select the available network to which you want to connect.

Click Configure.

WPA-PSK does not require a

RADIUS Server in the network.

Select WPA-PSK in the Authentication field.

Click

Authentication

Config

25

Using the Configuration Utility (continued)

Authentication > WPA-PSK (continued)

Advanced Security Settings

Enter the

WPA

Passphrase.

Click OK.

The configuration is done.

About

The

About

screen gives you the MAC address,

Utility Version and the

Driver Version of the

DWL-122.

26

Using the Configuration Settings with

Macintosh OS

After you have completed the installation of the DWL-122 into your Macintosh computer (please refer to the Quick Installation Guide included with the product), follow the steps below to access the configuration settings.

From the Apple pull-down menu select System Preferences.

Double-click on the Wireless Adaptor icon.

27

Using the Configuration Utility with Macintosh OS

(continued)

This window will appear displaying the following:

Current Wireless

Network settings:

Network Name; Network Type; Link Status; Channel; and

Signal Strength.

Available Wireless

Networks

including:

Name; Type; Signal;

Channel; Privacy.

Start Scan:

Click Start Scan to rescan for an available wireless network at your current location.

Connect:

Highlight a network profile and click

Connect

to connect to that network profile.

Wireless Adaptor Settings:

Radio On: Select or deselect

Frequency Band: Displays the frequency band; default is 2.4GHz

(may not be changeable).

Click Show My Networks to manage your network profiles.

28

Using the Configuration Utility with Macintosh OS

(continued)

My Networks

Connect:

Highlight a network profile and click Connect to connect to that network profile.

Properties:

Highlight a network profile and click Properties to configure that network profile. (See screens on the next page.)

Remove:

Highlight a network profile and click Remove to remove that network from the profile list.

Create:

Click Create to create a new network profile, manually. (See screens on the next page.)

29

Using the Configuration Utility with Macintosh OS

(continued)

My Networks >

Create and/or Properties

Select the level of WEP encryption. In the example, 40 Bits

ASCII was chosen.

Enter the WEP string, in this case

5 ASCII characters have been entered.

Select the key that you wish to use. You can input up to four keys.

30

Using the Configuration Utility with Macintosh OS

(continued)

Power Save: Always

On - Consumes the most power.

Advanced

Max Power Save -

Consumes the least power.

Power Save - Consumes a moderate amount of power.

Authentication:

Choose one of the following modes:

Open Authentication - The DWL-122 is visible to all devices on the network.

Shared Authentication - Allows communication only with devices with identical WEP settings.

Auto - Will automatically adjust to the Authentication mode of the wireless access point or router.

World Mode:

Select Active Scanning to continuously rescan and associate with the access point or router with the strongest signal in the SSID. (Not available for adapters sold in the USA.)

Info

This Info tab displays the MAC address and the

F i r m w a r e a n d

Driver versions.

31

Networking Basics

Using the Network Setup Wizard in Windows XP

In this section you will learn how to establish a network at home or work, using Microsoft Windows XP.

Note: Please refer to websites such as http://www.homenethelp.com

and http://www.microsoft.com/windows2000 for information about networking computers using Windows 2000/Me/98SE.

Go to

Start>Control Panel>Network Connections

Select

Set up a home or small office network

When this screen appears, click

Next.

32

Networking Basics (continued)

Please follow all the instructions in this window:

Click

Next.

In the following window, select the best description of your computer. If your computer connects to the internet through a gateway/router, select the second option as shown.

Click Next.

33

Networking Basics (continued)

Enter a Computer description and a Computer name (optional.)

Click Next.

Enter a Workgroup name. All computers on your network should have the same Workgroup name.

Click Next.

34

Networking Basics (continued)

Please wait while the Network Setup Wizard applies the changes.

When the changes are complete, click

Next.

Please wait while the Network Setup Wizard configures the computer.

This may take a few minutes.

35

Networking Basics (continued)

In the window below, select the option that fits your needs. In this example,

Create a Network Setup Disk has been selected. You will run this disk on each of the computers on your network. Click Next.

Insert a disk into the Floppy Disk Drive, in this case drive

A.

36

Networking Basics (continued)

Please read the information under

Here’s how in the screen below. After you complete the Network Setup Wizard you will use the Network Setup Disk to run the

Network Setup Wizard once on each of the computers on your network.

To continue, click Next.

37

Networking Basics (continued)

Please read the information on this screen, then click Finish to complete the

Network Setup Wizard.

The new settings will take effect when you restart the computer. Click Yes to restart the computer.

You have completed configuring this computer. Next, you will need to run the

Network Setup Disk on all the other computers on your network. After running the Network Setup Disk on all your computers, your new wireless network will be ready to use.

38

Networking Basics (continued)

Naming your Computer

To name your computer, using Windows XP, please follow these directions:



Start (in the lower left corner of the screen)



Right-click on My Computer



Select

Properties



Computer

Name Tab in the System

Properties window.



Computer

Description if you wish; this field is optional.

 and join a domain, click

Change.

39

Networking Basics (continued)

Naming your Computer



In this window, enter the

Computer name.





Select Workgroup and enter the name of the

Workgroup.

All computers on your network must have the same Workgroup name.



Click OK.

Checking the IP Address in Windows XP

The wireless adapter-equipped computers in your network must be in the same

IP address range (see Getting Started in this manual for a definition of IP address range.)

To check on the IP address of the adapter, please do the following:



Right-click on the Local

Area Connection icon

in the task bar.



Click on Status.

40

Networking Basics (continued)

Checking the IP Address in Windows XP

This window will appear.



Click the

Support tab.



Click Close.

Assigning a Static IP Address in Windows XP/2000

Note: Gateways/routers usually assign IP addresses automatically to the computers on the network, using DHCP (Dynamic Host Configuration Protocol) technology. If you are using a DHCP-capable gateway/router you will not need to assign static IP addresses.

If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow these instructions:



Go to Start.



Double-click on

Control Panel.

41

Networking Basics (continued)

Assigning a Static IP Address in Windows XP/2000



Double-click on

Network

Connections.

 Right-click on

Local Area

Connections.



Double-click on

Properties.

42

Networking Basics (continued)

Assigning a Static IP Address in Windows XP/2000



Click on

Internet

Protocol (TCP/IP).



Click Properties.

 In the window below, select

Use the following

IP address. Input your

IP address and subnet

mask. (The IP addresses on your network must be within the same range. For example, if one computer has an IP address of

192.168.0.2, the other computers should have

IP addresses that are sequential, like 192.168.0.3 and 192.168.0.4.

The subnet mask must be the same for all the computers on the



IP Address:

e.g., 192.168.0.2



Subnet Mask:

255.255.255.0



Default Gateway:

Enter the LAN IP address of the wireless router.

(D-Link wireless routers have a LAN IP address of

192.168.0.1)



Select

Use the following

DNS server addresses.

Enter the LAN IP address of the Wireless Router.

(D-Link wireless routers have a LAN IP address of

192.168.0.1)

 Click

OK

43

Networking Basics (continued)

Checking the Wireless Connection by

Pinging in Windows XP/2000*



Go to Start > Run > type

cmd. A window similar to this one will appear. Type

ping xxx.xxx.xxx.

xxx, where xxx is the IP address of the wireless router or access point. A good wireless connection will show four replies from the wireless point, as shown.

Checking the Wireless Connection by

Pinging in Windows Me/98*

 Go to Start > Run

> type command.

A window similar to this will appear.

Type

ping xxx.xxx.

xxx.xxx where xxx is the

IP address

of the wireless router or access point. A good wireless connection will show four replies from the wireless router or access point, as shown.

* The IP addresses in these illustrations are examples only. The actual IP addresses that you ping may be different than those displayed here.

44

Troubleshooting

This chapter provides solutions to problems that can occur during the installation and operation of the DWL-122. Read the following descriptions if you are having problems.

(The examples below are illustrated in Windows XP. If you have another operating system, these solutions will still apply although the appearance on your computer screen may differ.)

1. Check that the drivers for the DWL-122 are installed properly.



Go to Start >

My Computer >

Properties.



Select the

Hardware

Tab.



Click

Device

Manager.

45

Troubleshooting (continued)



Double-click on

Network

Adapters.



Right-click on

D-Link Air

DWL-122 Wireless USB

Adapter.



Select

Properties to check that the drivers are installed properly.

D-Link Air DWL-122 Wireless USB Adapter



Look under

Device

Status to check that the device is working properly.

D-Link Air DWL-122 Wireless USB Adapter



Click OK.

46

Troubleshooting (continued)

2. What variables may cause my wireless products to lose reception?

D-Link products let you access your network from virtually anywhere you want. However, the positioning of the products within your environment will affect the wireless range.

Please refer to Installation Considerations in the Wireless Basics section of this manual for further information about the most advantageous placement of your D-Link wireless products.

3. Why does my wireless connection keep dropping?



If you are using 2.4GHz cordless phones, X-10 equipment or other home security systems, ceiling fans, and lights, your wireless connection will degrade dramatically or drop altogether. Try changing the channel on your router, access point and wireless adapter to a different channel to avoid interference.

 generate RF noise, like microwaves, Monitors, electric motors, etc.

4. Why can’t I get a wireless connection?

If you have enabled encryption on the DWL-122, you must also enable encryption on all wireless devices in the network in order to establish a wireless connection.



The encryption settings are: 64 or 128-bit. Make sure that the encryption bit level is the same on the access point or router and the DWL-122.



Make sure that the SSID on the access point or router (if you have one in your network) and the DWL-122 are exactly the same. If they are not, a wireless connection will not be established. The default SSID is

default.

47

Technical Specifications

Standard



IEEE 802.11b

Diagnostic LED





Power

Link Status

Temperature





Humidity:





Operating: 5-95%, non-condensing

Storing: 10-90%, non-condensing

Antenna Type:



Integrated microstrip diversity antenna

Modulation Technique:



DSSS

Physical Dimensions:







L = 3.25 inches (82.5mm)

W = 1.07 inches (27.2mm)

H = 0.47 inches (12mm)

Data Rates:*



1,2,5.5,11Mbps (with Automatic Fallback)

Interface:



USB 1.1

Available Channels:



Eleven channels for North America

Media Access Protocol:



CSMA/CA with ACK

*Maximum wireless signal rate based on IEEE Standard 802.11b specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead lower actual data throughput rate.

48

Technical Specifications (continued)

Operating Voltage:



5VDC 5%, powered through USB port

Encryption:



RC4 Encryption algorithm



64 or 128-bit WEP Encryption

MTBF:



>30,000 hours

Modulation Schemes:



DQPSK, DBPSK and CCK

Transmitter Output Power:



Typical 16dBm, 40mW

Receiver Sensitivity:



Typical -81dBm for 11Mbps @ 8% PER (Packet Error Rate)



Typical -86dBm for 2Mbps @ 8% PER (Packet Error Rate)

49

Technical Support

You can find software updates and user documentation on the D-Link website.

D-Link provides free technical support for customers within the United States and within Canada for the duration of the warranty period on this product.

U.S. and Canadian customers can contact D-Link Technical Support through our website, or by phone.

Tech Support for customers within the United States:

D-Link Technical Support over the Telephone:

(877) 453-5465

24 hours a day, seven days a week.

D-Link Technical Support over the Internet:

http://support.dlink.com

email:[email protected]

Tech Support for customers within Canada:

D-Link Technical Support over the Telephone:

(800) 361-5265

Monday to Friday 8:30am to 9:00pm EST

D-Link Technical Support over the Internet:

http://support.dlink.ca

email:[email protected]

50

Warranty and Registration

(USA only)

Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited warranty for its product only to the person or entity that originally purchased the product from:

• D-Link or its authorized reseller or distributor and

• Products purchased and delivered within the fifty states of the United States, the District of Columbia,

U.S. Possessions or Protectorates, U.S. Military Installations, addresses with an APO or FPO. be free from material defects in workmanship and materials from the date of original retail purchase of the product, for the period set forth below applicable to the product type (“Warranty Period”), except as otherwise stated herein.

1-Year Limited Warranty for the Product(s) is defined as follows:

• Hardware (excluding power supplies and fans) One (1) Year

• Power Supplies and Fans One (1) Year

• Spare parts and spare kits Ninety (90) days

D-Link’s sole obligation shall be to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund at D-Link’s sole discretion. Such repair or replacement will be rendered by D-Link at an Authorized D-Link Service Office. The replacement Hardware need not be new or have an identical make, model or part. D-Link may in its sole discretion replace the defective Hardware (or any part thereof) with any reconditioned product that D-Link reasonably determines is substantially equivalent

(or superior) in all material respects to the defective Hardware. Repaired or replacement Hardware will be warranted for the remainder of the original Warranty Period from the date of original retail purchase. If a material defect is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to repair or replace the defective Hardware, the price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of the defective Hardware. All Hardware (or part thereof) that is replaced by D-Link, or for which the purchase price is refunded, shall become the property of D-Link upon replacement or refund.

substantially conform to D-Link’s then current functional specifications for the Software, as set forth in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days (“Warranty Period”), provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the Warranty Period, the magnetic media on which D-Link delivers the Software will be free of physical defects. D-Link’s sole obligation shall be to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Link’s functional specifications for the Software or to refund at D-Link’s sole discretion. Except as otherwise agreed by D-Link in writing, the replacement Software is provided only to the original licensee, and is subject to the terms and conditions of the license granted by D-Link for the Software. Software will be warranted for the remainder of the original Warranty Period from the date or original retail purchase. If a material non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to replace the non-conforming Software, the price paid by the original licensee for the nonconforming Software will be refunded by D-Link; provided that the non-conforming Software (and all copies thereof) is first returned to D-Link. The license granted respecting any Software for which a refund is given automatically terminates.

Link’s products will not be applied to and does not cover any refurbished product and any product purchased through the inventory clearance or liquidation sale or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product and in that case, the product is being sold “As-Is” without any warranty whatsoever including, without limitation, the Limited Warranty as described herein, notwithstanding anything stated herein to the contrary.

policy. In case the return policy period has expired and the product is within warranty, the customer shall submit a claim to D-Link as outlined below:

51

• The customer must submit with the product as part of the claim a written description of the Hardware defect or Software nonconformance in sufficient detail to allow D-Link to confirm the same.

• The original product owner must obtain a Return Material Authorization (“RMA”) number from the Authorized D-Link Service Office and, if requested, provide written proof of purchase of the product (such as a copy of the dated purchase invoice for the product) before the warranty service is provided.

• After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit, and the RMA number must be prominently marked on the outside of the package. Do not include any manuals or accessories in the shipping package. D-Link will only replace the defective portion of the Product and will not ship back any accessories.

• The customer is responsible for all in-bound shipping charges to D-Link. No Cash on Delivery

(“COD”) is allowed. Products sent COD will either be rejected by D-Link or become the property of D-Link. Products shall be fully insured by the customer. D-Link will not be held responsible for any packages that are lost in transit to D-Link. The repaired or replaced packages will be shipped to the customer via UPS Ground or any common carrier selected by D-Link, with shipping charges prepaid. Expedited shipping is available if shipping charges are prepaid by the customer and upon request.

• Return Merchandise Ship-To Address

USA: 17595 Mt. Herrman Street, Fountain Valley, CA 92708 warranty information within Canada) http://www.dlink.ca

for detailed

D-Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements, or for which an RMA number is not visible from the outside of the package. The product owner agrees to pay D-Link’s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements, or that is determined by D-Link not to be defective or non-conforming.

judgment, have been subjected to abuse, accident, alteration, modification, tampering, negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered, tampered with, defaced or removed; Initial installation, installation and removal of the product for repair, and shipping costs; Operational adjustments covered in the operating manual for the product, and normal maintenance; Damage that occurs in shipment, due to act of God, failures due to power surge, and cosmetic damage; Any hardware, software, firmware or other products or services provided by anyone other than D-Link; Products that have been purchased from inventory clearance or liquidation sales or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product. Repair by anyone other than D-Link or an Authorized D-Link Service Office will void this Warranty.

PRODUCT IS PROVIDED “AS-IS” WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING,

WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

PURPOSE AND NON-INFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY

TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE

LIMITED TO NINETY (90) DAYS. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY

PROVIDED HEREIN, THE ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF

THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT.

ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY

LOSS OF USE OF THE PRODUCT, INCONVENIENCE OR DAMAGES OF ANY CHARACTER, WHETHER

DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED TO, DAMAGES

FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT, WORK STOPPAGE, COMPUTER FAILURE

OR MALFUNCTION, FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D-LINK’S

PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATA CONTAINED IN, STORED ON, OR

INTEGRATED WITH ANY PRODUCT RETURNED TO D-LINK FOR WARRANTY SERVICE) RESULTING

FROM THE USE OF THE PRODUCT, RELATING TO WARRANTY SERVICE, OR ARISING OUT OF ANY

BREACH OF THIS LIMITED WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF

SUCH DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS

REPAIR, REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON-CONFORMING PRODUCT. THE

MAXIMUM LIABILITY OF D-LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF

THE PRODUCT COVERED BY THE WARRANTY. THE FOREGOING EXPRESS WRITTEN WARRANTIES

AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES,

EXPRESS, IMPLIED OR STATUTORY.

52

Governing Law: This Limited Warranty shall be governed by the laws of the State of California. Some states do not allow exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the foregoing limitations and exclusions may not apply. This limited warranty provides specific legal rights and the product owner may also have other rights which vary from state to state.

trademarks are the property of their respective manufacturers or owners.

Copyright Statement: No part of this publication or documentation accompanying this Product may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems, Inc., as stipulated by the United States Copyright Act of 1976. Contents are subject to change without prior notice.

Copyright

©

2002 by D-Link Corporation/D-Link Systems, Inc. All rights reserved.

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 communication. 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 receiver.

•

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

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

For detailed warranty outside the United States, please contact corresponding local

D-Link office.

FCC Caution:

The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment; such modifications could void the user’s authority to operate the equipment.

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.

IMPORTANT NOTE:

FCC Radiation Exposure Statement:

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

The antenna(s) used for this equipment must be installed to provide a separation distance of at least eight inches (20 cm) from all persons.

This equipment must not be operated in conjunction with any other antenna.

Register your D-Link product online at http://support.dlink.com/register/

(06/10/2005)

53