D-Link DWL-122 User Manual

D-Link

2.4GHz Wireless USB Adapter

Air DWL-122

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

T echnical S pecifications ......................................................................41

Contacting T echnical 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 Extenstion 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 OSX (v10.2x or later)

!

At least 32 MB of memory and a 300 MHz 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.
The DWL-122 also features 64 or 128-bit WEP encryption providing a level of
security for the data that you wirelessly transmit.

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

4

Features and Benefits

Compact size for placement anywhere

!

Convenience of Plug & Play installation

!

Fully 802.1 1b compatible

!

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

!

USB 1.1 standard

!

Network Security with with 64-bit and 128-bit WEP encryption

!

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*

!

One year warranty (USA only)

!

**

* Environmental factors may adversely affect range

5

Features

Internal Antenna

Used to wirelessly connect
to 802.11b networks

USB connector

Used to connect the

DWL-122 to your

computer

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-to­use 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 WLAN is a cellular 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.

6

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.

7

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. T ypical
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 D­Link 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. T ry 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.

8

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,
this icon will appear in the
taskbar at the bottom of the
screen (for WinXP service
pack I and above).

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.

9

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 broadband 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

10

Getting Started (continued)

Setting up a Wireless Infrastructure Network

2

3

1

4

DWL-122

DWL-122

5

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

Y ou 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.)

11

Getting Started (continued)

Setting up a Wireless Ad Hoc Network

Install the D-Link Air DWL-122 Wireless USB adapter into the desktop
computer.

installation instructions.)

Install another DWL-122 into the laptop computer.

(See the Quick Installation Guide included with the product for installation
instructions.)

(See the Quick Installation Guide included with the product for

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.

12

Using the Configuration Utility with Windows OS

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. When the computer is started, 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 DWL-122.

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

T o use the D-Link Configuration Utility
with XP, click on the D-Link
Configuration Utility icon in the taskbar
in the lower corner of your computer
screen.

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
again.

A new icon will appear in your Icon tray .
Double-click on the D icon shown in
the tray .

13

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

SSID:

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

default.

Frequency:

802.1 1b indicates that the
DWL-122 is communicat-

ing 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.

Link Info

Tx Rate:

The default setting is Auto; Tx Rate settings are automatically determined for
an optimal speed up to a maximum of 1 1Mbps.

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

14

Using the Configuration Utility with Windows OS

(continued)

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.

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

Configuration

IP Settings

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.

15

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

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

Advanced

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

16

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. Y ou can Add or
Remove a profile, or configure the Properties of the profile in order to connect
with an available network.

Refresh:

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

Configure:

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

Site Survey

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.

17

Using the Configuration Utility with Windows OS

(continued)

Advanced

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

Click OK to save the
changes.

Configuration, Add or Properties

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.

Click OK to save the
changes.

18

Using the Configuration Utility with Windows OS

(continued)

About

The About tab displays the
MAC Address, the utility and
the firmware versions.

19

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.

20

Using the Configuration Utility with Macintosh OS

(continued)

This window will
appear displaying
the following:

Current Wireless
Network settings:

Network Name;
Network T ype; Link
Status; Channel;
and Signal Strength

Available Wireless
Networks includ-

ing:
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

21

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.)

22

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.

23

Using the Configuration Utility with Macintosh OS

(continued)

Power Save:

Always On -

consumes the
most power

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

Advanced

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
Firmware and
Driver versions

24

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.microsoft.com/windows2000 for information about

and

networking computers using Windows 2000, ME or 98SE.

Go to Start>Control Panel>Network Connections
Select Set up a home or small office network

http://www.homenethelp.com

When this screen appears, Click Next.

25

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

26

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

27

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.

28

Networking Basics (continued)

In the window below, select the option that fit s 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.

29

Networking Basics (continued)

Please read the information under Here’s how in the screen below. Af ter 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.

30

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

31

Networking Basics (continued)

Naming your Computer

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

Click Start (in the lower left corner of the screen)

!

Right-click on My Computer

!

Select Properties and click

!

Select the Computer

!

Name Tab in the Sys­tem Properties window.

Y ou may enter a Com-

!

puter Description if
you wish; this field is
optional.

To rename the com-

!

puter and join a domain,
Click Change.

32

Networking Basics (continued)

Naming your Computer

In this window, enter the

!

Computer name

Select Workgroup and

!

enter the name of the

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

!

33

Networking Basics (continued)

Checking the IP Address in

This window will appear.

Click the

!

Support tab

Click Close

!

Windows XP

Assigning a Static IP Address in Windows XP/2000

Note: Residential Gateways/Broadband Routers will automatically assign IP Ad­dresses 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

34

Networking Basics (continued)

Assigning a Static IP Address in

Double-click

!

on Network
Connections

Windows XP/2000

Right-click on Local Area

!

Connections

Double-click on

!

Properties

35

Networking Basics (continued)

Assigning a Static IP Address
in Windows XP/2000

Click on Internet

!

D-Link Air DWL-122 Wireless USB Adapter

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 network.)

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

!

36

Networking Basics (continued)

Checking the Wireless Connection by
Pinging in Windows XP and 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 Router or
Acess Point, as
shown.

Checking the Wireless Connection by
Pinging in Windows Me and 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.

37

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

38

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

Click OK

!

D-Link Air DWL-122 Wireless USB Adapter

D-Link Air DWL-122 Wireless USB Adapter

D-Link Air DWL-122 Wireless USB Adapter

39

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 product s 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.

Keep your product away (at least 3-6 feet) from electrical devices that

!

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 de-
fault.

40

Technical Specifications

Standard

IEEE 802.11b

!

Diagnostic LED

Power

!

Link Status

!

Temperature

Operating: 0ºC to 55ºC (32ºF to 131ºF)

!

Storing: -20ºC to 75ºC (-4ºF to 167ºF)

!

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:

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

!

Interface:

USB 1.1

!

Available Channels:

Eleven channels for North America

!

Media Access Protocol:

CSMA/CA with ACK

!

41

T echnical S pecifications (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)

!

42

T echnical Support

Y ou can find software updates and user documentation on the D-Link website.
D-Link provides free technical support for customers within the United St ates 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:

[phone]
24 hours a day, seven days a week.

D-Link Technical Support over the Internet:

http://support.dlink.com
email:[e-mail]

Tech Support for customers within Canada:

D-Link Technical Support over the Telephone:

[phone]
Monday to Friday 8:30am to 9:00pm EST

D-Link Technical Support over the Internet:

http://support.dlink.ca
email:[e-mail]

43

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.

Limited Warranty: D-Link warrants that the hardware portion of the D-Link products described
below will 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.

Limited Software Warranty: D-Link warrants that the software portion of the product (“Software”)
will 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 non­conforming Software, the price paid by the original licensee for the non-conforming 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.

Non-Applicability of Warranty: The Limited Warranty provided hereunder for hardware and software
of D-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.

Submitting A Claim: The customer shall return the product to the original purchase point based on its
return 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:

44

• 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: 53 Discovery Drive, Irvine, CA 92618
Canada: 2180 Winston Park Drive, Oakville, ON, L6H 5W1 (Visit

warranty information within Canada)

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.

What Is Not Covered: This limited warranty provided by D-Link does not cover: Products, if in D-Link’s
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 D­Link; 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.

Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE
PRODUCT IS PROVIDED “AS-IS” WITHOUT ANY WARRANTY OF ANY KIND WHA TSOEVER INCLUDING ,
WITHOUT LIMIT ATION, ANY W ARRANTY OF MERCHANTABILITY, FITNESS FOR A P ARTICULAR PURPOSE
AND NON-INFRINGEMENT . IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY
WHERE A PRODUCT IS SOLD, THE DURA TION OF SUCH IMPLIED W ARRANTY SHALL BE LIMITED TO
NINETY (90) DA YS. EXCEPT AS EXPRESSL Y COVERED UNDER THE LIMITED W ARRANTY PROVIDED
HEREIN, THE ENTIRE RISK AS T O THE QUALITY , SELECTION AND PERFORMANCE OF THE PRODUCT IS

WITH THE PURCHASER OF THE PRODUCT .
Limitation of Liability: TO THE MAXIMUM EXTENT PERMITTED BY LAW, D-LINK IS NOT LIABLE
UNDER ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUIT ABLE THEORY
FOR ANY LOSS OF USE OF THE PRODUCT, INCONVENIENCE OR DAMAGES OF ANY CHARACTER,
WHETHER DIRECT , SPECIAL, INCIDENT AL OR CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED T O,
DAMAGES FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT , WORK STOPP AGE, COMPUTER
FAILURE OR MALFUNCTION, F AILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D­LINK’S PRODUCT IS CONNECTED WITH, LOSS OF INFORMA TION OR DAT A CONT AINED IN, STORED ON,
OR INTEGRATED WITH ANY PRODUCT RETURNED T O D-LINK FOR WARRANTY SER VICE) RESULTING

FROM THE USE OF THE PRODUCT, RELATING T O W ARRANTY 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 W ARRANTY IS

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

http://www.dlink.ca for detailed

45

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.

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: D-Link is a registered trademark of D-Link Systems, Inc. Other trademarks or registered

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.
CE Mark Warning: This is a Class B product. In a domestic environment, this product may cause radio

interference, in which case the user may be required to take adequate measures.
FCC Statement: 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 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/

(06/02/2003)

46