D Link WA121A1 Wireless N 150 Pico USB Adapter, Wireless N 150 Compact USB Adapter User Manual DWA 121 EN manual 10
D Link Corporation Wireless N 150 Pico USB Adapter, Wireless N 150 Compact USB Adapter DWA 121 EN manual 10
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2D-Link DWA-121 User Manual
Table of Contents
Product Overview ......................................................................3
Package Contents ........................................................................................... 3
System Requirements .................................................................................... 3
Introduction ...................................................................................................... 4
Features .............................................................................................................. 5
Hardware Overview ........................................................................................ 6
Installation ..................................................................................7
Getting Started ................................................................................................ 7
Remove Existing Installations ............................................................ 7
Disable Other Wireless Adapters ...................................................... 8
Wireless Installation Considerations ......................................................10
Adapter Installation ......................................................................................11
Wi-Fi® Protected Setup (WPS) ...........................................................17
Conguration .......................................................................... 20
D-Link Wireless Connection Manager ...................................................20
Wireless Networks ................................................................................21
My Wireless Networks .........................................................................25
Add Prole .......................................................................................26
Modify Prole..................................................................................27
Support ....................................................................................................28
About ........................................................................................................ 29
Connect to a Wireless Network ............................................ 30
Using Windows® 7 ..........................................................................................30
Connect to a Wireless Network ............................................ 31
Using Windows Vista® ...................................................................................31
Using Windows® XP .......................................................................................32
Wireless Security ..................................................................... 33
What is WPA? ...................................................................................................33
Congure WPA/WPA2 Passphrase ...........................................................34
Using the D-Link Wireless Connection Manager ......................34
Using Windows® 7 .................................................................................36
Using Windows Vista® .......................................................................... 39
Using the Windows® XP Utility .........................................................41
Congure WPA/WPA2 (RADIUS) ...............................................................43
Using the D-Link Wireless Connection Manager ......................43
Troubleshooting ..................................................................... 44
Windows® 7 Troubleshooting ....................................................................48
Wireless Basics ........................................................................ 50
Wireless Modes ..............................................................................................54
Networking Basics .................................................................. 55
Check your IP address ..................................................................................55
Windows® XP/2000 Users ...................................................................55
Windows 7/Vista® Users ......................................................................55
Statically Assign an IP address ..................................................................56
Windows® XP/2000 Users ...................................................................56
Windows 7/Vista® Users ......................................................................57
Technical Specications ........................................................ 58
Contacting Technical Support .............................................. 59
Warranty ................................................................................... 60
Registration ............................................................................. 66
Table of Contents
3D-Link DWA-121 User Manual
Section 1 - Product Overview
D-Link DWA-121 Wireless N 150 Pico USB Adapter
System Requirements
• A computer or laptop with an available USB 2.0 port
• Windows® 7, Vista®, XP (Service Pack 2)
• CD-ROM Drive
• 300MHz processor and at least 64MB of RAM
• A 802.11n or 802.11g access point or wireless router
Product Overview
Package Contents
Manual and Software on CD
Quick Installation Guide
4D-Link DWA-121 User Manual
Section 1 - Product Overview
Introduction
The DWA-121 Wireless N 150 Pico USB Adapter is a convenient wireless connectivity solution for desktop or notebook PCs. Instead of stringing
Ethernet cables to your PC or dismantling your desktop computer case, the DWA-121 can enable 802.11n wireless connectivity by simply utilizing
your desktop or notebook PC’s USB port.
Powered by Wireless N 150 technology, the DWA-121 provides a faster wireless connection and superior reception than 802.11g*. The DWA-121 is
designed for use in bigger homes and for those that demand higher bandwidth networking. Maximize wireless performance by connecting this
USB Adapter to a Wireless N™ router and stay connected from virtually anywhere in the home. This USB Adapter supports WPA and WPA2 encryption
to prevent outside intrusion and protect your personal information from being exposed.
D-Link’s Quick Setup Wizard guides you step-by-step through the installation process. You’ll be able to congure this USB Adapter without having
any diculties. The D-Link Wireless Manager is included with this product to keep track of all your most frequently accessed networks.
Compact in size, robust in speed the DWA-121 Wireless N 150 Pico USB Adapter is great for travel and a convenient solution for providing high
performance wireless connectivity to your desktop or notebook PC. Enjoy the many benets of wireless connectivity today!
* Maximum wireless signal rate derived from IEEE Standard 802.11g and 802.11n specications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network traf0c, building materials and construction, and network overhead, lower actual data throughput rate.
Environmental conditions will adversely aect wireless signal range.
5D-Link DWA-121 User Manual
Section 1 - Product Overview
Features
• Compact size for placement anywhere
• Convenience of Plug & Play installation
• Fully 802.11g compatible
• 802.11n compliant
• Powered by the USB port; no external power source required
• USB 2.0 standard*
• You can securely connect to a wireless network using WPA/WPA2 (Wi-Fi Protected Access) providing you a much higher level of
security for your data and communication than has previously been available.
• Position the DWA-121 almost anywhere in your workspace to achieve the best reception possible
• Supports Infrastructure networks via an access point
• User-friendly conguration and diagnostic utilities
* Using a USB 1.1 port will adversely aect throughput.
6D-Link DWA-121 User Manual
Section 1 - Product Overview
Hardware Overview
1USB Connector Used to connect the DWA-121 to your computer.
1
7D-Link DWA-121 User Manual
Section 2 - Installation
Getting Started
Installation
This section will walk you through the installation process. If you have a built-in wireless adapter, please disable it in device manager before installing
your D-Link adapter. Also, if you have previously installed another wireless adapter, please make sure any software is uninstalled.
Before installing your new D-Link wireless adapter, please verify the following:
• Remove any previous installations of wireless adapters
• Disable any built-in wireless adapters
• Verify the settings such as the SSID and security settings of the network(s) you want to connect to
Remove Existing Installations
If you’ve installed a dierent manufacture’s adapter or a dierent model D-Link adapter, make sure the software is uninstalled before installing
the new software. Some utilities may cause a conict with the new software. If you plan to use multiple adapters at dierent times, make sure the
utilities are not set to load when your computer boots up. Windows® 7, Vista® and XP users may use the built-in wireless utility for all adapters.
To remove any old software:
Windows 7 users: Click Start > Control Panel > Uninstall Programs.
Windows Vista/XP users: Click Start > Control Panel > Add or Remove Programs.
Windows 2000 users: Click Start > Settings > Control Panel > Add or Remove Programs.
8D-Link DWA-121 User Manual
Section 2 - Installation
Disable Other Wireless Adapters
Most newer laptops may include a built-in wireless adapter. To prevent any conicts with the D-Link wireless adapter, it is recommended to disable
the wireless adapter (as well as any unused Ethernet adapters).
From the desktop, right-click on the My Computer icon and select Manage.
Then, click Device Manager. Scroll down the list and click the + sign to the left of Network Adapters.
Right-click the adapter you would like to disable and select Disable.
9D-Link DWA-121 User Manual
Section 2 - Installation
Click Yes to disable the adapter.
The adapter is now disabled. When disabled, a red X will be displayed.
Disabling the adapter will not remove the drivers. If you would like to use the
adapter, simply right-click it and select Enable.
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Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless adapter lets you access your network using a wireless connection from virtually anywhere within the operating range of your
wireless network. Keep in mind 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 D-Link adapter and other network devices to a minimum - each wall or ceiling
can reduce your adapter’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 make a dierence. A solid metal door or aluminum studs may have a negative eect on range. Try to position
access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects
such as glass, steel, metal, walls with insulation, water (sh tanks), mirrors, le cabinets, brick, and concrete will degrade your
wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems), your
wireless connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone base is as far away from your
wireless devices as possible. The base transmits a signal even if the phone in not in use.
11D-Link DWA-121 User Manual
Section 2 - Installation
Warning: Do NOT install the DWA-121 Wireless N 150 Pico USB Adapter into your computer before installing the driver software from the
D-Link CD.
Turn on the computer and Insert the D-Link DWA-121 Driver CD in the CD-ROM drive.
If the CD Autorun function does not automatically start on your computer, go to Start > Run. In the run box type “D:\autorun.exe” (where D:
represents the drive letter of your CD-ROM drive).
When the autorun screen appears, click Install Drivers.
Adapter Installation
12D-Link DWA-121 User Manual
Section 2 - Installation
The InstallShield Wizard window will appear.
Please select your language from the list and click Next to continue.
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Section 2 - Installation
Insert the adapter into an available USB port on your computer.
If the Found New Hardware Wizard appears, click Cancel.
Select the new folder or an existing folder that you would like the installation
Wizard to add program icons to and then click Next.
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Section 2 - Installation
Please wait while the installation wizard congures your new software installation.
To manually connect to your wireless network, select Manually connect to a
wireless network and then click Next.
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Section 2 - Installation
To manually connect to your wireless network, select Manually connect to a
wireless network and then click Next.
Enter the network name (SSID) manually. If you enter the SSID incorrectly, you
will be directed to the site survey page. Click Scan to display the site survey page
or click Next to continue.
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Section 2 - Installation
Click Finish to continue. If you are prompted to reboot your computer, select
Yes, I want to restart my computer now.
Click the Scan button to display a list of wireless networks (site survey). Click on
the network name (SSID) and click Next.
17D-Link DWA-121 User Manual
Section 2 - Installation
Wi-Fi® Protected Setup (WPS)
Wi-Fi Protected Setup (WPS) System is designed for easy setup of security-enabled
Wi-Fi networks. It is recommended to have the access point or wireless router
nearby during setup.
For more information on WPS, visit the Wi-Fi Alliance website at www.wi-.org.
To begin the WPS setup, select the option the Use the WiFi Protected Setup (WPS)
wizard for simplied Wireless connection and click Next.
18D-Link DWA-121 User Manual
Section 2 - Installation
Press the WPS button located on the right side of the Router/ Access point until it
is lit and click on the virtual Connect Now button.
Please wait while the Router/ Access point establishes connection.
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Section 2 - Installation
When this screen appears, you have successfully established connectivity. Click
Finish to complete your setup.
Press the WPS button located on the right side of the Router/Access point until
it is lit and click on the virtual Connect Now button.
20D-Link DWA-121 User Manual
Section 3 - Conguration
Conguration
This section will show you how to congure your new D-Link wireless adapter using the D-Link Utility as well as the Windows® XP Zero Conguration
Utility and Vista WLAN Autoconguration.
D-Link Wireless Connection Manager
The D-Link DWA-121 uses the Wireless Connection Manager as the management software. The manager provides the user an easy interface to
change any settings related to the wireless adapter. Clicking on the Wireless Connection Manager icon on the desktop will start the Conguration.
If you are using Windows® 7, Vista®, or XP, please skip to pages 30, 31 or 32 respectively.
Double-click the Wireless Connection Manager icon on your
desktop.
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Section 3 - Conguration
Wireless Networks
The SSID (Service Set Identier) is the name of the wireless
network.
Displays the MAC address of the wireless device.
Displays the Link Quality of the wireless connection.
If there is a “lock” icon, this means the wireless network is
secure. You must know the encryption key/security settings
to connect.
Displays the channel of the wireless network.
Connect to a wireless network using Wi-Fi Protected Setup.
Refer to the next page.
Rescans for available wireless networks in your area.
Highlight a wireless network and click the Connect button. If
the network is secure, a pop-up window will appear. Enter the
security information to connect (refer to the Wireless Security
section for more information).
Select a wireless network prole from the drop-down menu
and click Activate to connect. Allow up to 30 seconds to
connect.
MAC:
SSID:
Channel:
Signal:
Security:
Refresh Button:
Connect Button:
Activate Button:
The Wireless Networks (Site Survey) page will display all wireless networks that are available in your area. To connect to a network, simply highlight
the wireless network (SSID) and click Connect.
WPS Button:
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Section 3 - Conguration
To use the PIN method, select PIN (Personal Identication Number) and click Next.
Make sure your access point or wireless router is close by. Write down the number
on the screen. Enter this number in your access point or wireless router. Please
refer to the manufacture’s manual for instructions.
Once you click Next, you will have two minutes to enter this number in your
access point or wireless router.
Personal Identication Number (PIN)
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Section 3 - Conguration
The adapter will try to establish connectivity to your access point or wireless
router.
When this screen appears, you have successfully established connectivity. Click
Finish to complete your setup.
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Section 3 - Conguration
Press the WPS button located on the right side of the Router/Access point until
it is lit and click on the virtual Connect Now button.
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Section 3 - Conguration
My Wireless Networks
The My Wireless Networks page will allow you to create, edit, and delete wireless network proles. Every time you connect to a network using the
Wireless Networks page, a prole will automatically be created.
New Button:
Modify:
Click New to create a new wireless network prole (refer to
page 22).
Click Modify to edit a current prole (refer to page 23).
Click Delete to remove a prole.
Click Activate to use a prole. Allow up to 30 seconds to
connect to the wireless network.
The Prole Details section will display information about the
wireless network such as the network name (SSID), network
type (Infrastructure), and if the network is secured.
Delete:
Activate:
Prole Details:
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Section 3 - Conguration
Add Prole
You may add a new network by clicking the New button from the My Wireless Networks page.
Prole Name:
SSID:
Enter a name for your prole (e.g. Home, Oce, Coee Shop).
Enter the SSID of the wireless network.
Select the network type. If you are connecting to a wireless
router or access point, select Infrastructure. (Ad-hoc mode is
not supported)
Select the type of security used. Please refer to the Wireless
Security section for more information.
Click OK to save your settings.
Network Type:
Security Type:
OK Button:
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Section 3 - Conguration
Modify Prole
You may edit an existing prole by selecting the prole and clicking the Modify button from the My Wireless Networks page.
Prole Name:
SSID:
Enter a name for your prole (e.g. Home, Oce,
Coee Shop).
Displays the SSID of the network.
Displays the network type.
Select the type of security used. Please refer to the
Wireless Security section for more information.
Click OK to save your settings.
Network Type:
Security Type:
OK Button:
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Section 3 - Conguration
Support
If you need help, click the Support button. A panel will appear to the right of the utility which will display information about the utility.
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Section 3 - Conguration
The About screen gives you information about the Driver and Utility Versions of the DWA-121.
About
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Section 3 - Conguration
Connect to a Wireless Network
Using Windows® 7
Windows 7 users may use the built-in wireless utility. If you are using another company’s utility or Windows 2000, please refer to the user manual of
your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows 7 utility
as seen below.
Right-click on the wireless computer icon in your system tray (lower-right
corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on the center
of the bubble to access the utility.
or
The utility will display any available wireless networks in your area. Click on
a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check you TCP/IP
settings for your wireless adapter. Refer to the Networking Basics section
in this manual for more information.
31D-Link DWA-121 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows Vista®
Windows Vista users may use the built-in wireless utility. If you are using another company’s utility or Windows 2000, please refer to the user manual
of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows Vista
utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-right
corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on the center
of the bubble to access the utility.
or
The utility will display any available wireless networks in your area. Click on
a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check you TCP/IP
settings for your wireless adapter. Refer to the Networking Basics section
in this manual for more information.
32D-Link DWA-121 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows® XP
Windows XP users may use the built-in wireless utility (Zero Conguration Utility). The following instructions are for Service Pack 2 users. If you are
using another company’s utility or Windows 2000, please refer to the user manual of your wireless adapter for help with connecting to a wireless
network. Most utilities will have a “site survey” option similar to the Windows XP utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-right
corner next to the time). Select View Available Wireless Networks.
If you receive the Wireless Networks Detected bubble, click on the center
of the bubble to access the utility.
or
The utility will display any available wireless networks in your area. Click on
a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check you TCP/IP
settings for your wireless adapter. Refer to the Networking Basics section
in this manual for more information.
33D-Link DWA-121 User Manual
Section 4 - Wireless Security
Wireless Security
This section will show you the dierent levels of security you can use to protect your data from intruders. The
DWA-121 oers the following types of security:
• WPA2 (Wi-Fi Protected Access 2) • WPA2-PSK (Pre-Shared Key)
• WPA (Wi-Fi Protected Access) • WPA-PSK (Pre-Shared Key)
What is WPA?
WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent Privacy).
The 2 major improvements over WEP:
• Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys using a hashing algorithm
and, by adding an integrity-checking feature, ensures that the keys haven’t been tampered with. WPA2 is based on 802.11i and
uses Advanced Encryption Standard instead of TKIP.
• User authentication, which is generally missing in WEP, through the extensible authentication protocol (EAP). WEP regulates access
to a wireless network based on a computer’s hardware-specic MAC address, which is relatively simple to be snied out and stolen.
EAP is built on a more secure public-key encryption system to ensure that only authorized network users can access the network.
WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password between 8 and 63
characters long. The password can include symbols (!?*&_) and spaces. This key must be the exact same key entered on your wireless router or
access point.
WPA/WPA2 incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a more secure public key encryption
system to ensure that only authorized network users can access the network.
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Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using the D-Link Wireless Connection Manager
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. If you are joining an existing
network, you will need to know the WPA-PSK passphrase being used.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop.
2. Highlight the wireless network (SSID) you would like to connect to and click Connect. If the network is using WPA-PSK, the screen (as shown to
the bottom-right) will appear.
3. Enter the WPA-PSK passphrase exactly as it is on your wireless router or access
point. Click the Show text in the password eld box to see the passphrase.
Unchecking it will hide it.
4. Click OK to connect to the network. Allow up to 30 seconds to connect.
If you would like to create a new network and enter the WPA-PSK settings, refer to
the next page.
35D-Link DWA-121 User Manual
Section 4 - Wireless Security
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. Make sure you enter the
passphrase exactly the same on all wireless devices.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. Click on New to create a new prole or highlight
an existing prole and click Modify.
2. Select WPA/WPA2-Personal under Set Security Option.
3. Select TKIP or AES.
4. Enter the passphrase exactly as it is on your wireless router or access
point.
5. Click OK to connect to the network. Allow up to 30 seconds to connect.
36D-Link DWA-121 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using Windows® 7
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your wireless adapter. If you
are joining an existing network, you will need to know the security key or passphrase being used.
2. The utility will display any available wireless networks in your area.
1. Click on the wireless icon in your system tray (lower-right corner).
37D-Link DWA-121 User Manual
Section 4 - Wireless Security
3. Highlight the wireless network (SSID) you would like to connect to and click
the Connect button.
If you get a good signal but cannot access the Internet, check your TCP/IP
settings for your wireless adapter. Refer to the Networking Basics section
in this manual for more information.
4. The following window appears while your computer tries to connect to the
router.
38D-Link DWA-121 User Manual
Section 4 - Wireless Security
5. Enter the same security key or passphrase that is on your router and click
Connect. You can also connect by pushing the WPS button on the router.
It may take 20-30 seconds to connect to the wireless network. If the connection
fails, please verify that the security settings are correct. The key or passphrase
must be exactly the same as on the wireless router.
39D-Link DWA-121 User Manual
Section 4 - Wireless Security
Congure WPA/WPA Passphrase
Using Windows Vista®
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your wireless adapter. If you
are joining an existing network, you will need to know the security key or passphrase being used.
2. Highlight the wireless network (SSID) you would like to connect to and
click Connect.
1. Open the Windows Vista® Wireless Utility by right-clicking on the wireless
computer icon in your system tray (lower right corner of screen). Select
Connect to a network.
40D-Link DWA-121 User Manual
Section 4 - Wireless Security
3. Enter the same security key or passphrase that is on your router and click
Connect.
It may take 20-30 seconds to connect to the wireless network. If the connection
fails, please verify that the security settings are correct. The key or passphrase
must be exactly the same as on the wireless router.
41D-Link DWA-121 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using the Windows® XP Utility
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. If you are joining an existing
network, you will need to know the WPA-PSK key being used.
2. Highlight the wireless network (SSID) you would like to connect to
and click Connect.
1. Open the Windows XP Wireless Utility by right-clicking on the wireless
computer icon in your system tray (lower-right corner of screen). Select
View Available Wireless Networks.
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Section 4 - Wireless Security
3. The Wireless Network Connection box will appear. Enter the WPA-PSK passphrase
and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the connection fails,
please verify that the WPA-PSK settings are correct. The WPA-PSK passphrase must be
exactly the same as on the wireless router or access point.
43D-Link DWA-121 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 (RADIUS)
Using the D-Link Wireless Connection Manager
WPA and WPA2 are for advanced users who are familiar with using a RADIUS server and setting up certicates.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your
desktop. Click on New to create a new prole or highlight an existing prole and click
Modify.
2. Select WPA/WPA2-Enterprise under Set Security Option and then select TKIP or AES.
3. Click on Advanced Cong to continue.
4. Next to EAP Type, select EAP-TLS or PEAP. Extensible Authentication Protocols allow
devices on the network to request authentication from the RADIUS server in the network.
All the devices on the network must use the same EAP type when using a RADIUS server
for authentication. Some RADIUS servers require that the Validate Server eld be selected.
Check this eld if your RADIUS server requires validation.
5. Select an User Certicate from the drop-down menu.
6. Enter the login information required to authenticate.
7. Click Add to enter the IP address(es) of your RADIUS servers.
8. Click OK to save your settings.
44D-Link DWA-121 User Manual
Section 5 - Troubleshooting
1. How do I know if my adapter is installed properly?
Select the Hardware Tab.
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DWA-121. Read the following descriptions
if you are having problems. (The examples below are illustrated in Windows® XP. If you have a dierent operating system, the screenshots on your
computer will look similar to the following examples.)
Go to Start > My Computer > Properties.
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Section 5 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-121 USB Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working
properly. Click OK to continue.
D-Link DWA-121 Wireless N 150 Pico USB Adapter
D-Link DWA-121
Wireless N 150 Pico USB Adapter
46D-Link DWA-121 User Manual
Section 5 - Troubleshooting
Make sure that the DWA-121 Wireless USB Adapter is properly seated in the computer’s USB port. If Windows does not detect the hardware upon
insertion of the adapter, try a dierent port. Also, make sure to completely remove the drivers that were previously loaded.
2. The computer does not recognize the DWA-121 Wireless N 150 Pico USB Adapter.
• Check that the LED indicators for the broadband modem are indicating normal activity. If not, there may be a problem with the
broadband connection.
• Check that the LED indicators on the wireless router are functioning properly. If not, check that the AC power and Ethernet cables
are rmly connected.
• Check that the IP Address, subnet mask, gateway, and DNS settings are correctly obtained from your network. Conrm your wireless
key.
• In Infrastructure mode, make sure the same Service Set Identier (SSID) is specied on the settings for the wireless clients and
access points. The SSID factory default setting for D-Link products is default. (Double-click on the WLAN icon in the taskbar. The
Link Info screen will display the SSID setting.)
3. The computer with the DWA-121 installed is unable to connect to the wireless network and/or the Internet.
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Section 5 - Troubleshooting
Check that the Network Connection for the wireless client is congured properly. Select AP (Infrastructure) when connecting to an access point.
Double-click on the WLAN icon in the taskbar > click on Conguration to change the settings for the wireless adapter.
If Security is enabled, make sure that the correct encryption keys are entered on both the DWA-121 and the access point. Double-click on the WLAN
icon in the taskbar > click Encryption. Check to see that the key selected is set to the same key as other devices on the network.
48D-Link DWA-121 User Manual
Section 5 - Troubleshooting
Windows® 7 Troubleshooting
Go to Start > Computer > Properties.
Select the Device Manager
49D-Link DWA-121 User Manual
Section 5 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-121 Wireless N 150 Pico USB Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly. Click OK to continue.
50D-Link DWA-121 User Manual
Appendix A - 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. Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to
securely access the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of wires. Wireless
LANs are used increasingly in both home and oce environments, and public areas such as airports, coee shops and universities. Innovative ways
to utilize WLAN technology are helping people to work and communicate more eciently. Increased mobility and the absence of cabling and other
xed infrastructure have proven to be benecial 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.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to use servers, printers
or an Internet connection supplied through the wired LAN. A Wireless Router is a device used to provide this link.
Wireless Basics
51D-Link DWA-121 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio
frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home or oce network.
Why D-Link Wireless?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products. D-Link
delivers the performance you need at a price you can aord. D-Link has all the products you need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point A to point B. But wireless
technology has restrictions as to how you can access the network. You must be within the wireless network range area to be able
to connect your computer. There are two dierent types of wireless networks Wireless Local Area Network (WLAN), and Wireless
Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access point has
a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access point as
seen in the picture, the signal can travel up to 300 feet. With an outdoor access point the signal can reach out up to 30 miles to
serve places like manufacturing plants, industrial locations, college and high school campuses, airports, golf courses, and many
other outdoor venues.
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range up to 30
feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use nearly as much
power which makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops, speakers, and other devices
that operate on batteries.
52D-Link DWA-121 User Manual
Appendix A - Wireless Basics
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, oce, business,
D-Link has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check email, instant message, and etc
• Gets rid of the cables around the house
• Simple and easy to use
Small Oce and Home Oce
• Stay on top of everything at home as you would at oce
• Remotely access your oce network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate oce space
53D-Link DWA-121 User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or oce. People like the freedom of mobility and it’s becoming so popular that
more and more public facilities now provide wireless access to attract people. The wireless connection in public places is usually called “hotspots”.
Using a D-Link wireless desktop adapter with your laptop, you can access the hotspot to connect to Internet from remote locations like: Airports,
Hotels, Coee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing where to start. That’s why we’ve put
together a few setup steps and tips to help you through the process of setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try to place the router/access
point as high as possible in the room, so the signal gets dispersed throughout your home. If you have a two-story home, you may need a repeater
to boost the signal to extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access point. This would
signicantly reduce any interference that the appliances might cause since they operate on same frequency.
Security
Don’t let your next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on the WPA security
feature on the router. Refer to product manual for detail information on how to set it up.
54D-Link DWA-121 User Manual
Appendix A - Wireless Basics
There are basically two modes of networking:
• Infrastructure – All wireless clients will connect to an access point or wireless router.
• Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless network adapters on each
computer. Unfortunately 802.11g/n products such as the DWA-121 do not support ad-hoc mode.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect to the wireless router or access
point.
An Ad-Hoc* network contains only clients, such as laptops with wireless USB Adapters. All the adapters must be in Ad-Hoc mode to communicate.
* Not supported with the DWA-121.
Wireless Modes
55D-Link DWA-121 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link wireless adapter and have established a wireless connection, by default, the TCP/IP settings should be set to obtain
an IP address from a DHCP server (i.e. router) automatically. To verify your IP address, please follow the steps below.
Windows® XP/2000 Users
• Click on Start > Run. In the run box type cmd and click OK.
• At the prompt, type ipcong and press Enter.
• This will display the IP address, subnet mask, and the default gateway of your adapter.
Windows 7/Vista® Users
• Click Start > All Programs > Accessories > Command Prompt. You may need
administrative access to run this application.
• For all additional prompt windows inquiring of running the command prompt
application, select Yes, OK, or Continue.
• At the prompt, type ipcong and press Enter.
• This will display the IP address, subnet mask, and default gateway of your adapter.
If the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some rewall software programs may
block a DHCP request on newly installed adapters.
56D-Link DWA-121 User Manual
Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:
Windows® XP/2000 Users
• Windows XP - Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network Connections icon.
Windows 2000 – From the desktop, right-click My Network Places > Properties.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter (or other adapter) which will be connected
to your router.
• Highlight Internet Protocol (TCP/IP) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same subnet as your network or LAN IP address on your router.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address 192.168.0.X where X is a number between 2 and 99. Make sure
that the number you choose is not in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
57D-Link DWA-121 User Manual
Appendix B - Networking Basics
Windows 7/Vista® Users
• Click on Start > Control Panel (make sure you are in Classic View). Double-click on the Network and Sharing Center icon. If you are using
Windows Vista, click on Manage network connections along the left panel in the window. For Windows 7, click on Change adapter settings.
• Right-click on the Wireless Network Connection which represents your D-Link wireless network adapter.
• Highlight Internet Protocol Version 4 (TCP /IPv4) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same
subnet as your network or LAN IP address on your router or network.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address
192.168.0.X where X is a number between 2 and 99. Make sure that the number
you choose is not in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
58D-Link DWA-121 User Manual
Appendix C - Technical Specications
Technical Specications
Standards
• IEEE 802.11n
• IEEE 802.11g
Bus Type
• USB 2.0 (1.1 compatible)
Security
• WPA/WPA2 - Wi-Fi Protected Access (AES, MIC,
IV Expansion, Shared Key Authentication)
• WPS (PBC/PIN)
Media Access Control
• CSMA/CA with ACK
Frequency Range
• 2.4GHz to 2.483GHz (North America)
Power Consumption (802.11n)
• 230 mA at continuous transmit mode
• 120 mA at receive mode
Modulation Technology
• Orthogonal Frequency
Division Multiplexing (OFDM)
• Complementary Code Keying (CCK)
Transmitter Power Output
• 11b: 17dBm
• 11g: 15dBm
• 11n: 14 dBm at HT 20, 13 dBm at HT 40
Operating Voltage
• 5 VDC +/- 10%
Operating Temperature
• 0 to 40 ºC (32 to 104 ˚F)
Operating Humidity
• 10% to 90% maximum (non-condensing)
Dimensions
• .75” x .05” x 0.2”
Weight
• 2.2 g
Certications
• FCC Class B
• IC
• Wi-Fi
Warranty
• 1 Year
* Maximum wireless signal rate derived from IEEE Standard 802.11n and 802.11g specications. Actual data throughput will vary. Network conditions and environmental factors,
including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will adversely aect
wireless signal range.
5 VDC +/- 5%
USA: FCC 15B/ FCC 15C/ SAR
CANADA: RSS-210
T
AIWAN: NCC LP0002
2.4GHz to 2.462GHz (USA/ Canada/ Taiwan)
• 11b: 19.9dBm
• 11g: 24.3dBm
• 11n: 22.3dBm at HT 20, 21.5dBm at HT 40
59D-Link DWA-121 User Manual
Appendix D - Contacting Technical Support
Contacting Technical Support
Before you contact technical support, please have the following ready:
• Model number of the product (e.g. DWA-121)
• Hardware Revision (located on the label on the adapter (e.g. rev A1))
• Serial Number (s/n number located on the label on the adapter).
You can nd software updates and user documentation on the D-Link website as well as frequently asked questions and answers to technical issues.
For customers within the United States:
Phone Support:
(877) 453-5465
Internet Support:
http://support.dlink.com
For customers within Canada:
Phone Support:
(800) 361-5265
Internet Support:
http://support.dlink.ca
60D-Link DWA-121 User Manual
Appendix E - Warranty
Warranty
Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited Warranty:
• Only to the person or entity that originally purchased the product from D-Link or its authorized reseller or distributor, and
• Only for products purchased and delivered within the fty states of the United States, the District of Columbia, U.S. Possessions
or Protectorates, U.S. Military Installations, or addresses with an APO or FPO.
Limited Warranty:
D-Link warrants that the hardware portion of the D-Link product described below (“Hardware”) will be free from material defects in workmanship
and materials under normal use from the date of original retail purchase of the product, for the period set forth below (“Warranty Period”), except
as otherwise stated herein.
• Hardware (excluding power supplies and fans): One (1) year
• Power supplies and fans: One (1) year
• Spare parts and spare kits: Ninety (90) days
The customer’s sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at
D-Link’s option, to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund the actual
purchase price paid. Any repair or replacement will be rendered by D-Link at an Authorized D-Link Service Oce. The replacement hardware
need not be new or have an identical make, model or part. D-Link may, at its option, 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 or ninety (90) days, whichever is longer,
and is subject to the same limitations and exclusions. If a material defect is incapable of correction, or if D-Link determines that it is not practical
to repair or replace the defective Hardware, the actual 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.
61D-Link DWA-121 User Manual
Appendix E - Warranty
Limited Software Warranty:
D-Link warrants that the software portion of the product (“Software”) will substantially conform to D-Link’s then current functional specications
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 (“Software 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 Software Warranty Period, the magnetic media on which D-Link delivers the Software will be
free of physical defects. The customer’s sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will
be, at D-Link’s option, to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Link’s functional
specications for the Software or to refund the portion of the actual purchase price paid that is attributable to the Software. 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. Replacement Software will be warranted for the remainder of the original Warranty Period and is subject
to the same limitations and exclusions. 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 non-conforming Software will be refunded by
D-Link; provided that the non-conforming Software (and all copies thereof) is rst 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 portions 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:
• The customer must submit with the product as part of the claim a written description of the Hardware defect or Software
nonconformance in sucient detail to allow DLink to conrm the same, along with proof of purchase of the product (such as a
copy of the dated purchase invoice for the product) if the product is not registered.
• The customer must obtain a Case ID Number from D-Link Technical Support at 1-877-453-5465, who will attempt to assist the
customer in resolving any suspected defects with the product. If the product is considered defective, the customer must obtain a
Return Material Authorization (“RMA”) number by completing the RMA form and entering the assigned Case ID Number at https://
rma.dlink.com/.
62D-Link DWA-121 User Manual
Appendix E - Warranty
• 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. DLink 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 and shipped
to D-Link Systems, Inc., 17595 Mt. Herrmann, Fountain Valley, CA 92708. 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. Return shipping charges shall be prepaid by D-Link if you use an address in the United States, otherwise
we will ship the product to you freight collect. Expedited shipping is available upon request and provided shipping charges are
prepaid by the customer. 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:
The Limited Warranty provided herein by D-Link does not cover:
Products that, in D-Link’s judgment, have been subjected to abuse, accident, alteration, modication, 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, rmware or other products or services provided by anyone
other than D-Link; and 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.
While necessary maintenance or repairs on your Product can be performed by any company, we recommend that you use only an Authorized D-Link
Service Oce. Improper or incorrectly performed maintenance or repair voids this Limited Warranty.
Disclaimer of Other Warranties:
EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE 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 NONINFRINGEMENT.
63D-Link DWA-121 User Manual
Appendix E - Warranty
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 THE DURATION OF THE APPLICABLE WARRANTY PERIOD SET FORTH ABOVE. 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.
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 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 NONCONFORMING 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.
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 specic legal rights and you may also have other rights which vary from state to state.
Trademarks:
D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. Other trademarks or registered trademarks are the property of their
respective 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 and any amendments thereto. Contents are subject to change without prior notice.
Copyright 2010 by D-Link Corporation/D-Link Systems, Inc. All rights reserved.
64D-Link DWA-121 User Manual
Appendix E - Warranty
FCC Statement:
This device has been tested for compliance with FCC RF Exposure (SAR) limits in the typical laptop computer conguration and this device can be
used in desktop or laptop computers with side mounted USB ports which can provide 2 cm separation distance from the antenna to the body of
the user or a nearby person. This device cannot be used with handheld PDAs (personal digital assistants). This device and its antenna must not be
co-located or operated in conjunction with any other antenna or transmitter.
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 o 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 dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
IMPORTANT NOTICE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specic
operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter. IEEE 802.11g operation of this product in the U.S.A. is rmware-limited to channels 1 through 11. This equipment has been
SAR-evaluated for use in laptops (notebooks) with side slot conguration.
For detailed warranty information applicable to products purchased outside the United States, please contact the corresponding local D-Link
oce.
Federal Communication Commission Interference 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 communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one 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.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions fo
r
satisfying RF exposure compliance. To maintain compliance with FCC RF exposure compliance requirements, please follow operation instruction as documented in
this manual.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
SAR compliance has been established in typical laptop computer(s) with USB slot, and product could be used in typical laptop computer with USB slot. Other
application like handheld PC or similar device has not been verified and may not compliance with related RF exposure rule and such use shall be prohibited.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one 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.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this 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:
Radiation Exposure Statement:
The product comply with the US/Canada portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as described in this manual. The further RF exposure reduction
can be achieved if the product can be kept as far as possible from the user body or reduce output power if it doesn't affect the transmission/receiving quality.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
SAR compliance has been established in typical laptop computer(s) with USB slot, and product could be used in typical laptop computer with USB slot. Other application like handheld PC or similar device has not
been verified and may not compliance with related RF exposure rule and such use shall be prohibited.
The USB dongle transmitter is approved for use in typical laptop computers. To comply with FCC RF exposure requirements, it should not be used in other devices or certain laptop and tablet computer
configurations where the USB connectors on the host computer are unable to provide or ensure the necessary operating configurations intended for the device and its users or bystanders to satisfy RF exposure
compliance requirements.
65D-Link DWA-121 User Manual
Appendix E - Warranty
Industry Canada Notice:
This device complies with Canadian RSS-210
“This Class B digital apparatus complies with Candadian ICES-003”
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
IC statement
Operation is subject to the following two conditions:
(1)This device may not cause interference and
(2)This device must accept any interference, including interference that may cause undesired operation of the device.
This device has been designed to operate with an antenna having a maximum gain of 2 dBi. Antenna having a higher gain is strictly prohibited per
regulations of Industry Canada. The required antenna impedance is 50 ohms.
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specic operating
instructions for satisfying RF exposure compliance. This equipment should be installed and operated with minimum distance 20cm between the
radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Règlement d’Industry Canada
Les conditions de fonctionnement sont sujettes à deux conditions:
(1)Ce périphérique ne doit pas causer d’interférence et.
(2)Ce périphérique doit accepter toute interférence, y compris les interférences pouvant perturber le bon fonctionnement de ce périphérique.
T
his device has been designed to operate with an antenna having a maximum gain of -8.21 dBi. Antenna having a higher gain is strictly
prohibited per
regulations of Industry Canada. The required antenna impedance is 50 ohms.
Industry Canada Statement
This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
1) this device may not cause interference and
2) this device must accept any interference, including interference that may cause undesired operation of the device
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying
RF exposure compliance. To maintain compliance with IC RF exposure compliance requirements, please follow operation instruction as documented in this manual.
This device complies with RSS-210 of the Industry Canada 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:
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. To maintain
compliance with IC RF exposure compliance requirements, please follow operation instruction as documented in this manual.
66D-Link DWA-121 User Manual
Appendix F - Registration
Version 1.0
October 5, 2010
Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights.
Registration
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