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AT-WCU201G
User Manual
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Allied Telesis AT-WCU201G User Manual

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USB 2.0 Wireless Adapter
AT-WCU201G
Installation Guide
613-000260 Rev. A
Copyright © 2005 Allied Telesyn, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn, Inc.
Allied Telesyn, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesyn, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesyn, Inc. has been advised of, known, or should have known, the possibility of such damages.
AT-WCU201G Wireless Adapter Card Installation Guide

Regulatory Notes and Statements

Wireless LAN,
Health and
Authorization For
Use
Regulatory
Information and
Disclaimers
Radio frequency electromagnetic energy is emitted from Wireless LAN devices. However, the energy levels of these emissions are far less than the electromagnetic energy emissions from similar wireless devices such as mobile phones. Wireless LAN devices are safe for use with frequency safety standards and recommendations. The use of Wireless LAN devices may be restricted in some situations or environments for example:
❑ On board airplanes
❑ In an explosive environment
❑ If the interference risk to other devices or services is perceived or
identified as harmful
If the policy regarding the use of Wireless LAN devices in specific organizations or environments (for example, airports, hospitals, chemical/oil/gas industrial plants, or private buildings, etc.) is not clear, please ask for authorization to use these devices prior to operating the equipment.
Installation and use of this Wireless LAN device must be in strict accordance with the instructions included in the user documentation provided with the product. Any changes or modifications made to this device that are not expressly approved by the manufacturer may void the user’s authority to operate the equipment. The Manufacturer is not responsible for any radio or television interference caused by unauthorized modification of this device, of the substitution or attachment. The manufacturer and its authorized resellers or distributors will assume no liability for any damage or violation of government regulations arising from failing to comply with these guidelines.
USA-FCC
(Federal
Communications
Commission)
Statement
This device complies with Part 15 of FCC Rules. Operation of this device is subject to the following two conditions:
❑ This device may not cause harmful interference
❑ This device must accept any interference received, including
interference that may cause undesired operations.
3
Regulatory Notes and Statements
CE Caution
European standards dictate the maximum radiated transmit power of 100mW EIRP and a frequency range of 2.400-2.4835GHz (channels 1 -13). In France, the equipment must be restricted to the 2.4465-2.4835GHz (channels 10 -13) frequency range and must be restricted to indoor use.
The following equipment: AT-WCU201G 54Mbps Wireless USB 2.0 Adapter.
Is herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States relating to the Electromagnetic Compatibility (89/336/EEC). Low­voltage Directive (72/23/ECC) and the Amendment Directive (93/68/EEC), the procedures given in European Council Directive 99/5/EC and 89/3360EEC.
The equipment passed. The test was performed according to the following European standards:
FCC Radio
Frequency
Exposure
Statement
FCC Interference
Statement
❑ EN 300 328 V.1.4.1 (2003-04)
❑ EN 301 489-1 V.1.3.1 (2001-09) / EN 301 489-17 V.1.1.1 (2000-09)
❑ EN 50371: 2002
❑ EN 60950: 2000
This Wireless LAN radio device has been evaluated under FCC Bulletin OET 65 and found compliant to the requirements as set forth in CFR 47 Sections 2.1091, 2.1093, and 15.247 (b) (4) addressing RF Exposure from radio frequency devices.
FCC RF Radiation Exposure Statement: This equipment complies with the FCC RF radiation limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating 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. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communications.
4
AT-WCU201G Wireless Adapter Card Installation Guide
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 and correct the interference by one or more of the following measures:
❑ Reorient or relocate the receiving antenna.
❑ Increase the distance between the equipment and the receiver.
❑ Connect the equipment to 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.
Warning
In Canada, the equipment must be restricted to indoor use.
Export
Restrictions
CE Mark
Warning
This product or software contains encryption code that may not be exported or transferred from the US or Canada without an approved US Department of Commerce export license.
Safety Information
Your device contains a low power transmitter. When device is transmitted it sends out radio frequency (RF) signal.
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.
Protection Requirements for Health and Safety - Article 3.1a
Testing for electric safety according to EN60950 has been conducted. These are considered relevant and sufficient.
Protection Requirements for Health and Safety - Article 3.1b
Testing for electromagnetic compatibility according to EN301 489-1, EN301 489-17 and EN55024 has been conducted. These are considered relevant and sufficient.
Effective Use of the Radio Spectrum - Article 3.2
Testing for radio test suites according to EN300 328-2 has been conducted. These are considered relevant and sufficient.
5
Regulatory Notes and Statements
6

Contents

Regulatory Notes and Statements .................................................................................................................................... 3
Preface ................................................................................................................................................................................. 9
Document Conventions ....................................................................................................................................................... 10
Where to Find Web-based Guides ...................................................................................................................................... 11
Contacting Allied Telesyn .................................................................................................................................................... 12
Online Support ..............................................................................................................................................................12
Email and Telephone Support .......................................................................................................................................12
Returning Products........................................................................................................................................................12
For Sales or Corporate Information...............................................................................................................................12
Adapter Card Driver Updates ........................................................................................................................................12
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card ................................................................................... 13
Features .............................................................................................................................................................................. 14
LEDs.................................................................................................................................................................................... 15
Reviewing the Package Contents........................................................................................................................................ 16
Installing the Adapter Driver ................................................................................................................................................ 17
Setting the Regulatory Domain............................................................................................................................................ 21
Verifying the Driver Installation............................................................................................................................................ 26
Removing the Adapter Driver .............................................................................................................................................. 27
Chapter 2: Using the Adapter’s Configuration Utility ................................................................................................... 29
Installing the Configuration Utility ........................................................................................................................................ 30
Starting the Configuration Utility .......................................................................................................................................... 35
Creating a Preferred WLAN Profile...................................................................................................................................... 38
No Security....................................................................................................................................................................40
WEP Security ................................................................................................................................................................40
WPA/WPA2-PSK Security..........................................................................................................
Configuring the IP Address.................................................................................................................................................. 45
Deleting a Preferred WLAN Profile...................................................................................................................................... 48
Importing and Exporting Preferred WLAN Profiles.............................................................................................................. 49
Exporting a Preferred WLAN Profile..............................................................................................................................49
Importing a Preferred WLAN Profile..............................................................................................................................50
Working with Profile Groups ................................................................................................................................................ 52
Creating a Profile Group................................................................................................................................................52
Moving a Preferred WLAN Profile .................................................................................................................................53
Renaming a Group ........................................................................................................................................................53
Deleting a Group ...........................................................................................................................................................54
Selecting the Active Profile Group.................................................................................................................................55
Chapter 3: Microsoft Windows XP .................................................................................................................................. 57
Setting the IP Address......................................................................................................................................................... 58
Quick Configuration ............................................................................................................................................................. 62
Manually Configuring the Wireless Adapter......................................................................................................................... 65
No Security....................................................................................................................................................................67
WEP Security ................................................................................................................................................................67
WPA/WPA2-PSK Security.............................................................................................................................................68
Appendix A: Technical Specifications ............................................................................................................................ 69
...................................42
Appendix B: Regulatory Domains ................................................................................................................................... 71
7
Contents
8

Preface

This guide contains the installation instructions for the AT-WCU201G USB
2.0 wireless network adapter card.
This preface contains the following sections:
“Document Conventions” on page 10
“Where to Find Web-based Guides” on page 11
“Contacting Allied Telesyn” on page 12
9
Preface

Document Conventions

This guide uses the following conventions:
Note
Notes provide additional information.
Caution
Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data.
Warning
Warnings inform you that performing or omitting a specific action may result in bodily injury.
10

Where to Find Web-based Guides

The installation and user guides for all Allied Telesyn products are available in Portable Document Format (PDF) from our web site at
www.alliedtelesyn.com. You can view the documents on-line or
download them onto a local workstation or server.
AT-WCU201G Wireless Adapter Card Installation Guide
11
Preface

Contacting Allied Telesyn

This section provides Allied Telesyn contact information for technical support as well as sales or corporate information.

Online Support You can request technical support online by accessing the Allied Telesyn

Knowledge Base from the following web site: www.alliedtelesyn.com/kb. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.
Email and Telephone
Support
Returning
Products
For Sales or
Corporate
Information
Adapter Card
Driver Updates
For Technical Support via email or telephone, refer to the Support & Services section of the Allied Telesyn web site: www.alliedtelesyn.com.
Products for return or repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to Allied Telesyn without a RMA number will be returned to the sender at the sender’s expense.
To obtain a RMA number, contact Allied Telesyn’s Technical Support at our web site: www.alliedtelesyn.com.
You can contact Allied Telesyn for sales or corporate information at our web site: www.alliedtelesyn.com. To find the contact information for your country, select Contact Us -> Worldwide Contacts.
You can download new releases of network adapter card drivers from either of the following Internet sites:
❑ Allied Telesyn web site: www.alliedtelesyn.com
❑ Allied Telesyn FTP server: ftp://ftp.alliedtelesyn.com
12
To download new firmware from the Allied Telesyn FTP server at your workstation’s command prompt, you need FTP client software and must log in to the server. Enter “anonymous” as the user name and your email address for the password.

Chapter 1

Installing the AT-WCU201G Wireless Adapter Card

This chapter contains the installation instructions for the AT-WCU201G wireless network adapter card. Sections in the chapter include:
“Features” on page 14
“LEDs” on page 15
“Reviewing the Package Contents” on page 16
“Installing the Adapter Driver” on page 17
“Setting the Regulatory Domain” on page 21
“Verifying the Driver Installation” on page 26
“Removing the Adapter Driver” on page 27
The AT-WCU201G wireless adapter is shown in Figure 1.
Act Link
Act Link
eless USB 2.0
AT-WCU201G
Wir
767
Figure 1. AT-WCU201G Wireless Adapter
13
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card

Features

USB 2.0 compliant interface
IEEE 802.11b and 802.11g compliant
6, 9, 12, 18, 24, 36, 48, and 54 Mbps dynamic transmission rates for
IEEE 802.1g
1, 2, 5.5, and 11 Mbps dynamic transmission rates for IEEE 802.1b
Microsoft Windows 2000 and XP compatible
2.4 ~ 2.5 GHz frequency band
Infrastructure and Ad-hoc network compatible
Wired Equivalent Privacy (WEP) with 64, 128, and 152-bit encryption
Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access 2 (WPA2)
Preshared Key (PSK)
WPA Extensible Authentication Protocol (EAL) and WPA2-EAL
Extensible Authentication Protocol (EAP) authentication types —
Transport Layer Security (TLS), Message Digest-5 Challenge Handshake Authentication Protocol (MD-5 CHAP), and Protected EAP (PEAP)
Temporal Key Integrity Protocol (TKIP)
Advanced Encryption Standard (AES)
Built-in dual diversity antenna
Super G mode with 108 Mbps transmission rate (Only supported with
wireless routers and access points that feature Super G)
14

LEDs

AT-WCU201G Wireless Adapter Card Installation Guide
The two LEDs on the AT-WCU201G adapter are defined in Table 1.
Table 1. LED Descriptions
LED State Description
Link On The adapter is receiving power.
Off The adapter is not receiving
power.
Act On The adapter has established a
connection to a wireless router or access point. If the LED is blinking, the adapter is transmitting or receiving traffic.
Off The adapter has not established a
connection to a wireless router or access point.
15
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card

Reviewing the Package Contents

The shipping package should contain the following items. If any item is missing or damaged, contact your Allied Telesyn sales representative for assistance:
AT-WCU201G Wireless Adapter
Software and Documentation CD
USB cable (1 meter)
Warranty card
16

Installing the Adapter Driver

To install the adapter driver, perform the following procedure:
1. Power ON the computer.
2. Insert the Software and Documentation CD into the CD drive of the computer.
Note
If your computer launches the web browser when you insert the CD, minimize or close the web browser window.
3. Remove the cap from the AT-WCU201G wireless adapter, as shown in Figure 2.
AT-WCU201G Wireless Adapter Card Installation Guide
Act Link
Act Link
0
eless USB 2.
AT-WCU201G
Wir
768
Figure 2. Removing the Cap from the AT-WCU201G Wireless Adapter
4. Connect one end of the USB cable included with the adapter to a USB port on your computer. For best performance, the port should be a USB 2.0 port. The adapter will work if connected to a USB 1.1 port, but at a reduced speed.
17
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card
5. Connect the other end of the cable to the AT-WCU201G wireless adapter, as shown in Figure 3.
Figure 3. Connecting the AT-WCU201G Wireless Adapter to the USB
Alternatively, you can connect the adapter directly to the USB port on the computer without the cable.
Windows detects the new adapter and launches the Found New Hardware Wizard. The first window of the wizard is shown in Figure 4.
Cable
eless USB 2.
AT-WCU201G
Wir
0
Act Link
Act Link
769
18
Figure 4. Found New Hardware Wizard Window (1 of 3)
Note
If the window does not appear, disconnect and reconnect the AT-WCU201G adapter to the computer.
AT-WCU201G Wireless Adapter Card Installation Guide
6. In the Found New Hardware Wizard window, select No, not this time and click Next. The window shown in Figure 5 is displayed.
Figure 5. Found New Hardware Wizard Window (2 of 3)
7. Select Install the software automatically (Recommended) and click Next.
The following prompt is displayed after the driver is copied to the computer from the CD.
Figure 6. Found New Hardware Wizard (3 of 3)
19
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card
8. Click Finish.
This completes the procedure for installing the adapter driver on a Microsoft Windows system. Go to the next procedure, “Setting the Regulatory Domain” on page 21.
20

Setting the Regulatory Domain

Caution
The selection of your country or regulatory domain is critical to the proper operation of the wireless adapter and its adherence to the laws and regulations that govern the operation of wireless networks in your country. Failure to select the appropriate country or regulatory domain can cause the adapter to operate improperly or in a manner that constitutes a violation of local laws.
To set the regulatory domain, perform the following procedure:
1. Open the Control Panel.
2. Double-click on System.
The System Properties window is shown in Figure 7.
AT-WCU201G Wireless Adapter Card Installation Guide
Figure 7. System Properties Window - General Tab (Microsoft Windows
XP)
21
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card
3. Click the Hardware tab.
The Hardware tab is shown in Figure 8.
Figure 8. System Properties Window - Hardware Tab (Microsoft Windows
XP)
4. Click Device Manager.
22
AT-WCU201G Wireless Adapter Card Installation Guide
The Device Manager window is shown in Figure 9.
Figure 9. Device Manager Window
5. Expand Network adapters by either double-clicking on it or by clicking once on the expansion box next to it.
The selection expands to display the network adapter cards installed in the system. An example is shown in Figure 10.
Figure 10. Expanded Network Adapters Selection
If the Network Adapters selection does not include your new adapter, be sure that the adapter is securely connected to the USB port on the computer.
6. Double-click Allied Telesyn AT-WCU201g Wireless USB Adapter.
23
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card
The Properties window for the adapter is shown in Figure 11.
Figure 11. AT-WCU201G Wireless Adapter Properties Window
7. Select the Advanced tab. The Advanced tab is shown in Figure 12.
24
Figure 12. Properties Window - Advanced Tab
AT-WCU201G Wireless Adapter Card Installation Guide
8. Click Country Region and select your country or regulatory domain from the Value pull-down menu
9. Click OK.
This completes the procedure for installing the wireless adapter’s driver on your computer.
25
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card

Verifying the Driver Installation

To verify that the driver was correctly incorporated into the Microsoft Windows operating system, perform the following procedure:
1. Open the Control Panel.
2. Double-click on System.
The System Properties window with the General tab is shown in Figure 7 on page 21.
3. Click the Hardware tab.
The Hardware tab is shown in Figure 8 on page 22.
4. Click Device Manager.
The Device Manager window is shown in Figure 9 on page 23.
5. Expand Network adapters by either double-clicking on it or by clicking once on the expansion box next to it.
The selection expands to display the network adapter cards installed in the system. An example is shown in Figure 10 on page 23.
If the Network Adapters selection does not include your new adapter, be sure that the adapter is securely connected to the USB port on the computer.
6. Double-click on Allied Telesyn AT-WCU201G Wireless Adapter.
The Properties window of the adapter is shown in Figure 11 on page
24.
7. Verify that the Device Status contains the following: “The device is working properly.”
26

Removing the Adapter Driver

To remove the driver from the computer, perform the following procedure:
1. Connect the AT-WCU201G wireless adapter to the computer. For instructions, refer to Step 3 in “Installing the Adapter Driver” on page 17.
Note
The adapter must be connected to the computer in order to remove the driver.
2. Open the Control Panel.
3. Double-click on System.
The System Properties window is shown in Figure 7 on page 21.
AT-WCU201G Wireless Adapter Card Installation Guide
4. Click the Hardware tab.
The Hardware tab is shown in Figure 8 on page 22.
5. Click Device Manager.
The Device Manager window is shown in Figure 9 on page 23.
6. Expand Network adapters by either double-clicking on it or by clicking once on the expansion box next to it.
The selection expands to display the network adapter cards installed in the system. An example is shown in Figure 10 on page 23.
7. Right-click on the wireless adapter driver to be removed and select either Remove or Uninstall from the pop-up menu, as shown in Figure
13.
Figure 13. Unistall Menu Selection
A confirmation prompt is displayed.
27
Chapter 1: Installing the AT-WCU201G Wireless Adapter Card
8. Click OK.
9. Disconnect the wireless adapter from the computer.
This completes the procedure for removing the adapter driver from the computer.
28

Chapter 2

Using the Adapter’s Configuration Utility

This chapter describes the Wireless Configuration utility that comes on the CD included with your adapter. You can use the utility to configure the parameter settings on the adapter, such as its IP address and security settings. The installation and use of this program is optional. If you prefer, you can configure the adapter settings using Microsoft Windows.
Sections in the chapter include:
“Installing the Configuration Utility” on page 30
“Starting the Configuration Utility” on page 35
“Creating a Preferred WLAN Profile” on page 38
“Configuring the IP Address” on page 45
“Deleting a Preferred WLAN Profile” on page 48
“Importing and Exporting Preferred WLAN Profiles” on page 49
“Working with Profile Groups” on page 52
29
Chapter 2: Using the Adapter’s Configuration Utility

Installing the Configuration Utility

To install the configuration program on your computer from the Software and Documentation CD, perform the following procedure:
1. Power ON the computer.
2. Insert the Software and Documentation CD into the CD drive of the computer.
Your system should automatically launch the CD and display the main window, shown in Figure 14. If this window does not appear, double­click on the My Computer icon, then double-click on the Allied Telesyn Installation CD icon.
30
Figure 14. Software and Documentation CD Main Window
3. Click Configuration Utility.
Note
The security prompts in Figure 15, Figure 16, and Figure 17 are from Microsoft Internet Explorer version 6.0. You may not see these prompts or you may see different prompts if you are using a different version of Microsoft Internet Explorer or a different web browser.
The prompt in Figure 15 is displayed.
Figure 15. Internet Explorer - Active Content Warning Prompt
4. Click Run.
The prompt in Figure 16 is displayed.
AT-WCU201G Wireless Adapter Card Installation Guide
Figure 16. File Download - Security Warning Prompt
5. Click Run.
The security warning prompt in Figure 17 is displayed.
Figure 17. Internet Explorer - Security Warning Prompt
31
Chapter 2: Using the Adapter’s Configuration Utility
6. Click Run.
The Welcome window of the InstallShield Wizard is shown in Figure
18.
Figure 18. InstallShield Wizard — Welcome Window
7. Click Next.
The Choose Destination Location window of the InstallShield Wizard is shown in Figure 19.
32
Figure 19. InstallShield Wizard — Choose Destination Location Window
AT-WCU201G Wireless Adapter Card Installation Guide
8. Select a destination folder on the system for storing the configuration utility. To select the default directory, click Next. To select a different directory, click Browse and then select the folder in the Select Program Folder window.
The InstallShield Wizard displays the Select Program Folder window in Figure 20.
Figure 20. InstallShield Wizard — Select Program Folder
9. Select the location where you want InstallShield to store an icon for the configuration utility and click Next. The default is the Allied Telesyn folder. (InstallShield Wizard creates the folder if it does not already exist.)
A series of windows appear as the system copies the configuration utility files from the CD to the specified directory. When all the files are copied, the Regulatory Domain window in Figure 21 is displayed.
Figure 21. Regulatory Domain Window
33
Chapter 2: Using the Adapter’s Configuration Utility
10. Select your country or regulatory domain from the pull-down menu and click OK.
Caution
The selection of your country or regulatory domain is critical to the proper operation of the wireless adapter and its adherence to the laws and regulations that govern the operation of wireless networks in your country. Failure to select the appropriate country or regulatory domain can cause the adapter to operate improperly or in a manner that constitutes a violation of local laws.
The InstallShield Wizard Complete window, shown in Figure 22, is displayed when the file transfer is finished.
34
Figure 22. InstallShield Wizard Complete Window
11. Remove the Documentation and Software CD from the CD drive.
12. Select Yes, I want to restart my computer now and click Finish.
This completes the procedure for installing the configuration utility on your computer. To start the program, go to “Starting the Configuration Utility” on page 35.

Starting the Configuration Utility

To start the Wireless Adapter Configuration utility, double-click the configuration utility icon in the Windows toolbar.
Figure 23. Configuration Utility Icon
Alternatively, select the following from the Start Menu: Start ->
Programs -> Allied Telesyn -> AT-WCU201G Configuration Wizard.
The program consists of four tabs: Configuration, Status, Option, and About. The Configuration tab, shown in Figure 24, is displayed by default when you start the program.
AT-WCU201G Wireless Adapter Card Installation Guide
Figure 24. Configuration Tab
The sections in the Configuration tab are described here:
Available WLANs
This section of the Configuration tab displays information about the wireless routers and access points of the networks detected by the wireless adapter. This section will be empty if no wireless networks are detected.
35
Chapter 2: Using the Adapter’s Configuration Utility
The section is useful in reviewing the networks that are currently available for you to connect to with the adapter, as well as viewing basic information about the networks. This information includes the following:
ESSID - The name of the network. The name will be blank if the
wireless router or access point is configured not to broadcast it.
MAC (ESSID) - The MAC address of the wireless router or access
point.
Signal - The signal strength from the wireless router or access point.
The range is 0% (low) to 100% (high).
Security - The security mode of the router or access point.
CH - The frequency channel being used by the wireless router or
access point.
Frequency - The operating frequency of the router or access point.
Mode - The radio mode.
This section has the following two buttons:
Refresh - This button updates the Available WLANs section of the tab
with any newly detected wireless routers or access points.
Add - You use this button to create a new Preferred WLAN profile. A
Preferred WLAN profile contains the configuration settings for connecting to an available wireless network.
Each wireless router or access point in the list is preceded by one of the icons in Figure 25. The icons indicate the wireless router or access point to which the wireless adapter is currently connected. The wireless adapter can be connected to only one router or access point at a time.
Connected Not Connected
Figure 25. Connection Status Icons
Preferred WLANs
This section of the Configuration tab displays a list of the networks the wireless adapter is configured to access and use. The information includes the following:
36
ESSID - The name of the network.
Security - The security mode of the network.
AT-WCU201G Wireless Adapter Card Installation Guide
In order for the wireless adapter to access one of the networks listed in Available WANs, you have to configure it with the network’s name and the appropriate security information. This is referred to as creating a Preferred WLAN profile. After you have created a profile, the wireless adapter can connect to the specified network whenever it detects a wireless router or access point that is a part of the network.
This section contains the following buttons:
New - You use this button to create a new Preferred WLAN profile
when the network is not listed in the Available WLANs section. For instructions, refer to “Creating a Preferred WLAN Profile” on page 38.
Remove - You use this button to remove a Preferred WLAN profile
from the adapter. Once a network’s corresponding Preferred WLAN profile is removed, the adapter can no longer access that network. For instructions on using this button, refer to “Deleting a Preferred WLAN Profile” on page 48.
Properties - You use this button to view or modify the settings of a
Preferred WLAN profile.
Reconnect - Prompts the adapter to reestablish a connection to a
Preferred WLAN.
Move to - This button moves a Preferred WLAN profile to a different
group. For instructions, refer to “Moving a Preferred WLAN Profile” on page 53.
Export - This button exports a Preferred WLAN profile into a separate
file for transfer to another computer. For instructions, refer to “Importing and Exporting Preferred WLAN Profiles” on page 49.
Import - This button imports a Preferred WLAN profile into the
configuration program. For instructions, refer to “Importing and Exporting Preferred WLAN Profiles” on page 49.
37
Chapter 2: Using the Adapter’s Configuration Utility

Creating a Preferred WLAN Profile

The following procedure explains how to create a Preferred WLAN profile for the following wireless network environments:
No security
WEP security
WPA-PSK and WPA2-PSK security
Note
The AT-WCU201G wireless adapter also supports Ad Hoc, WPA/ WPA2 Enterprise, and 802.1x authentication, but these topics are beyond the scope of this manual.
To create a Preferred WLAN, perform the following procedure:
1. Start the Wireless Configuration utility, as explained in “Starting the Configuration Utility” on page 35.
2. If you created groups for storing your Preferred WLAN profiles, click the name of the group in the Profile Group Control list where you want to store the new profile. Creating profile groups is optional. For instructions, refer to “Working with Profile Groups” on page 52.
3. Do one of the following:
If the network that you want to configure as a Preferred Network is
listed in Available WLANs, double-click it or click it once and then click the Add button. (If you know that the computer is within reception distance of a wireless router or access point of the network, but the network is not listed under Available WLANs, try clicking Refresh.)
If the network is not listed in Available WANs because the wireless
adapter is not in range of the network, click the New button in the Preferred WLANs section of the tab.
The Wireless Network Properties window is displayed, as shown in Figure 26 on page 39.
38
AT-WCU201G Wireless Adapter Card Installation Guide
The Wireless Network Properties window is shown in Figure 26.
Figure 26. Wireless Network Properties Window
Depending on how you opened the window, some of the information may already be filled in for you.
4. Go to the appropriate subsection below for instructions on how to configure the Wireless Network Properties window for your wireless security system:
“No Security” on page 40
“WEP Security” on page 40
“WPA/WPA2-PSK Security” on page 42
39
Chapter 2: Using the Adapter’s Configuration Utility

No Security A Preferred WLAN without security is appropriate in a wireless network

environment where there is no encryption or authentication between the wireless nodes and the wireless routers or access points.
Caution
A wireless network without security is vulnerable to unauthorized access.
To configure the Wireless Network Properties window for a Preferred WLAN with no security, perform the following procedure:
1. Click Wireless Network Name (SSID) and enter the name of the network. The name is case sensitive.
2. Click Authentication Mode and select Open System from the pull­down menu.
3. Click Data Encryption and select Disable from the pull-down menu.
Note
You must assign the profile an IP address. To set the IP address for the profile now, go to step 5 in “Configuring the IP Address” on page 45. To set the IP address ar another time, complete this procedure.
4. Click OK to close the Wireless Network Properties window.
The Preferred WLANs section of the Configuration tab should now include a new Preferred WLAN for the network.
5. Click Apply.
This completes the procedure for creating a Preferred WLAN profile with no security.

WEP Security To configure the Wireless Network Properties window for WEP security,

do the following:
1. Click the Wireless network name (SSID) field and enter the name of the wireless network. The name is case sensitive.
40
2. Select the Authentication Mode parameter and from the pull-down menu select either Open System or Shared Key.
In an Open System environment a node does not provide
authentication to the access point in order to access the network. It only needs to provide the SSID of the network.
AT-WCU201G Wireless Adapter Card Installation Guide
In a Shared Key environment a node must authenticate itself to the
access point using a shared WEP key that is present on both the node and the access point. Only after a node is successful authenticated will the access point allow it access to the network.
This setting must be the same on both the wireless adapter and the wireless router or access point.
3. Click the Data Encryption parameter and from the pull-down menu select WEP. If in step 2 you selected Shared Key, WEP is the only available option for the Data Encryption parameter.
4. Click the Key Length parameter and select from the pull-down menu the desired encryption key length and type. Options are:
64 bit hexadecimal or ASCII key (40 bit encryption key and 24 bit
initialization vector)
128 bit hexadecimal or ASCII (104 bit encryption key and 24 bit
initialization vector)
152 bit hexadecimal or ASCII (128 bit encryption key and 24 bit
initialization vector)
This setting must be the same on the wireless client and the access point.
5. Enter the WEP encryption keys. You can enter from one to four keys.
The wireless client uses the encryption keys to decode the network traffic that it receives from the access point as well as to encrypt the network traffic that it sends to the access point. If in Step 6 you selected Share Key, the client also uses a key when authenticating itself to the access point.
When entering the WEP keys, note the following rules:
The order of the keys here must match the order of the keys on the
wireless router or access point.
Valid ASCII characters are a - z, A - Z, and 0 - 9. Valid hexadecimal
characters are 1 - 9 and A - F. (A WEP key of ASCII characters is case sensitive.)
The key lengths for a hexadecimal key are as follows:
– A key length of 64 bits requires 10 hexadecimal
characters.
– A key length of 128 bits requires 26 hexadecimal
characters.
– A key length of 152 bits requires 32 hexadecimal
characters.
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Chapter 2: Using the Adapter’s Configuration Utility
The key lengths for an ASCII key are as follows:
The wireless client and access point can use different keys to
6. Select Default Key and from the pull-down menu select the key that the wireless adapter should use to encryption its outgoing traffic. If in Step 5 you selected Share Key, the default key is also used by the client when authenticating itself to the access point.
Note
You must assign the profile an IP address. To set the IP address for the profile now, go to step 5 in “Configuring the IP Address” on page 45. To set the IP address at another time, complete this procedure.
– A key length of 64 bits requires 5 ASCII characters.
– A key length of 128 bits requires 13 ASCII
characters.
– A key length of 152 bits requires 16 ASCII
characters.
encode the network traffic that they each send. However, both keys must be entered on both devices and the keys must occupy the same positions in the encryption key tables (Key 1, Key 2, etc.) on the devices.
WPA/WPA2­PSK Security
7. Click OK to close the Wireless Network Properties window.
The Preferred WLANs section of the Configuration tab should now include a new Preferred WLAN for the network.
8. In the main window of the configuration utility, click Apply.
This completes the procedure for creating a Preferred WLAN profile with WEP security.
To configure the Wireless Network Properties window for Wi-Fi Protected Access (WPA) Preshared Key (PSK) or WPA2-PSK security, do the following:
1. Click the Wireless network name (SSID) field and enter the name of the network. The name is case sensitive.
2. Click Authentication Mode and select either WPA-PSK or WPA2-
PSK from the pull-down menu.
Note
Do not select WPS2-PSK unless the wireless access point features WPA2.
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AT-WCU201G Wireless Adapter Card Installation Guide
3. Click Data Encryption and select either TKIP (Temporal Key Integrity Protocol) or AES (Advanced Encryption Standard) from the pull-down menu. The encryption method must be the same on both the wireless node and the wireless access point.
4. Click the Authentication Config button.
The Advance Security Settings window is shown in Figure 27.
Figure 27. Advance Security Settings Window
5. Click the WPA Passphrase field and enter the passphrase (also referred to as the shared secret) from the wireless router or access point.
6. Click OK to close the Advance Security Settings window.
Note
You must assign the profile an IP address. To set the IP address now, go to step 5 in “Configuring the IP Address” on page 45. To set the IP address at another time, complete this procedure.
43
Chapter 2: Using the Adapter’s Configuration Utility
7. Click OK to close the Wireless Network Properties window.
The Preferred WLANs section of the Configuration tab should now include a new Preferred WLAN profile for a wireless network using WPA-PSK or WPA2-PSK security.
8. In the main window of the configuration utility, click Apply.
This completes the procedure for creating a Preferred WLAN profile with WPA/WPA-PSK security.
44

Configuring the IP Address

To configure the IP address for a Preferred WLAN profile or to activate the DHCP client, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
Note
Perform step 2 if you created profile groups, which are optional. For further information, refer to “Working with Profile Groups” on page 52
2. In the Profile Group Control section of the Configuration tab, click the group containing the profile whose IP address you want to assign or modify.
AT-WCU201G Wireless Adapter Card Installation Guide
3. In the Preferred WLANs section of the window, click the Preferred WLAN profile whose IP address you want to assign or change.
4. Click Properties.
5. The Wireless Network Properties window, containing the parameter settings of the selected WLAN profile, is displayed. An example of the window is shown in Figure 26 on page 39.
6. Click IP & Proxy Setting.
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Chapter 2: Using the Adapter’s Configuration Utility
The LAN Settings window is shown in Figure 28.
Figure 28. LAN Settings Window
7. If you want the adapter to obtain its IP address, subnet mask, and default gateway from a DHCP server on your network, click Obtain an IP address automatically. A check in the dialog box activates the DHCP client.
8. If you want to manually enter an IP address, do the following:
a. Click Obtain an IP address automatically to remove the check
from the dialog box.
b. In the IP address field, enter an IP address for the adapter.
c. In the Subnet mask field, enter the adapter’s subnet mask.
d. If the wireless node needs to communicate through a router, enter
the IP address of the router in the Default gateway field.
9. If your network has a domain name service, which converts domain names into IP addresses, and you want the computer to obtain the IP address of the domain name server from a DHCP or BOOTP server, select Obtain DNS server address automatically. To enter the IP address of a domain name server manually, select Use the following
46
AT-WCU201G Wireless Adapter Card Installation Guide
DNS server addresses and enter the IP address in the field. You can enter up to two IP addresses of domain name servers. The alternate DNS server address is used only if the server specified as the preferred DNS server does not respond.
10. Click OK to close the LAN Settings window.
11. Click OK to close the Wireless Network Properties window.
12. Click the Option tab.
13. Verify that the option Enable IP Setting and Proxy Setting in Profile has a check mark. If it does not, click it once to add a check mark. If you do not activate this option, the IP address for the wireless adapter must be set using Windows, as explained in “Setting the IP Address” on page 58.
14. Click the Configuration tab.
15. In the Configuration tab, click Apply.
Note
The actual initial assignment of an IP address to a wireless adapter using the configuration program can take up to a minute to occur.
16. If you are finished using the configuration utility, click OK.
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Chapter 2: Using the Adapter’s Configuration Utility

Deleting a Preferred WLAN Profile

To delete a Preferred WLAN profile, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
Note
Perform step 2 if you created profile groups, which are optional. For further information, refer to “Working with Profile Groups” on page 52
2. In the Profile Group Control section of the Configuration tab, click the group containing the profile to be deleted.
3. In the Preferred WLANs section of the Configuration tab, click the Preferred WLAN you want to delete.
4. Click Remove.
The selected Preferred WLAN is deleted from the Wireless Adapter Configuration Utility.
5. Click Apply.
6. If you are finished using the configuration utility, click OK.
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AT-WCU201G Wireless Adapter Card Installation Guide

Importing and Exporting Preferred WLAN Profiles

You can export a Preferred WLAN profile into a separate file and then import the file onto another computer. This can simplify the task of configuring a large number of AT-WCU201G adapters that are to have similar or identical Preferred WLAN profiles.
Exporting a
Preferred WLAN
Profile
To export a Preferred WLAN profile into a separate file for transfer to another system, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
Note
Perform step 2 if you created profile groups, which are optional. For further information, refer to “Working with Profile Groups” on page 52
2. In the Profile Group Control section of the Configuration tab, click the name of the group containing the profile to be exported.
3. In the Preferred WLAN section of the Configuration tab, click the profile to export.
4. Click Export.
The Profile Password window is shown in Figure 29.
Figure 29. Profile Password
5. In the Input Profile Password and Confirm Again fields, enter a password for the profile. The password protects the exported profile from unauthorized use. The password can be from 1 to 16 alphanumeric characters. The password is case sensitive. Spaces are allowed. You are prompted for this password when you import the profile onto another computer.
6. Click OK.
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Chapter 2: Using the Adapter’s Configuration Utility
The Save As window is displayed for saving the profile file.
7. Specify the location where you want to store the profile and a filename. The filename extension must be “.AWP”.
8. Click OK.
The profile is saved as a separate file on your computer.
This completes the procedure for exporting a Preferred WLAN profile. By saving the profile onto a floppy disk or CD, you can transfer the disk to another computer that has an AT-WCU201G adapter and the configuration utility, and import the profile onto that system, as explained in the next procedure.
Importing a
Preferred WLAN
Profile
To import a Preferred WLAN profile into the configuration utility, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
Note
Perform step 2 if you created profile groups, which are optional. For further information, refer to “Working with Profile Groups” on page 52
2. In the Profile Group Control section of the Configuration tab, click the name of the group where you want to import the profile.
3. Click Import.
4. In the Open window, specify the filename and location of the profile to import and click OK.
50
The Profile Password window is shown in Figure 30.
Figure 30. Profile Password Window
5. Enter the profile’s password and click OK. The password is case sensitive.
AT-WCU201G Wireless Adapter Card Installation Guide
The profile is incorporated as a Preferred WLAN into the configuration utility. The wireless adapter will establish a connection if it is within range of a wireless router or access point of the network defined by the profile.
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Chapter 2: Using the Adapter’s Configuration Utility

Working with Profile Groups

Profile groups allow you to organize your Preferred WLAN profiles. You can place the profiles in different groups to make them easier to find and manage. Creating profile groups is optional.
There can be only one active profile group at a time. The wireless adapter uses the profiles in the active group to establish a connection to a wireless network. The profiles in the other groups are inactive. You can work on all the profiles in all the groups, not just the active group, but only the profiles in the active group are used to make a wireless connection. For instructions on how to designate the active group, refer to “Selecting the Active Profile Group” on page 55.
Creating a Profile
Group
To create a new profile group, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
2. In the Profile Group Control section of the Configuration tab, click the empty field to the left of the New button and enter a name for the new profile group. The name can be up to 15 alphanumeric characters. Spaces are allowed.
3. Click New.
The new group is added to the list in the Profile Group Control section. If this is the first profile group, note the following:
All of the existing profiles in the Preferred WLAN section are
automatically added to the group.
The group is automatically marked as the active group, designated
with the icon in Figure 31. The computer uses the profiles in the active group to connect to a wireless network. There can only be one active group at a time. To change the active group, refer to “Selecting the Active Profile Group” on page 55.
52
Figure 31. Active Group Icon
4. Click the name of the new group to select the group.
AT-WCU201G Wireless Adapter Card Installation Guide
5. You can now add profiles to the new group by either creating them or, if they already exist, moving them from an existing group to the new group. For directions, refer to “Creating a Preferred WLAN Profile” on page 38 and “Moving a Preferred WLAN Profile” on page 53.
Moving a
Preferred WLAN
Profile
To move a profile to a different group, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
2. In the Profile Group Control section of the Configuration tab, click the group that contains the profile to be moved.
The profiles of the group appear in the Preferred WLANs section.
3. In the Preferred WLAN section, click the profile to be moved to a different group and click Move to.
A list of the existing profile groups is displayed. An example is shown Figure 32.
Renaming a
Group
Figure 32. Move to Another Group Window
4. Click the new group for the profile and click OK.
The profile is moved to the designated group.
To rename a profile group, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
2. In the Profile Group Control section of the Configuration tab, click the name of the group to be renamed. You can rename only one group at a time.
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Chapter 2: Using the Adapter’s Configuration Utility
3. Click Rename.
The Group Rename window is shown in Figure 33.
Figure 33. Group Rename Window
4. Enter the new name for the group and click OK. The name can be up to 15 alphanumeric characters. Spaces are allowed.

Deleting a Group This procedure explains how to delete a profile group.

Caution
Deleting a profile group deletes all the Preferred WLAN profiles in the group. If you want to retain the profiles, move them to a different group as explained in “Moving a Preferred WLAN Profile” on page 53, or, alternatively, export the profiles into separate files, as explained in “Exporting a Preferred WLAN Profile” on page 49.
To delete a profile group, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
2. In the Profile Group Control section of the Configuration tab, click the group to be deleted. You can delete only one group at a time.
3. Click Delete.
A confirmation prompt is displayed.
4. Click Yes to delete the group or No to cancel the procedure.
If you select Yes, the group and its profiles are deleted from the computer.
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AT-WCU201G Wireless Adapter Card Installation Guide
Selecting the
Active Profile
Group
This procedure selects the active profile group for an adapter. The switch uses the profiles in the active group to establish a connection to a wireless network. There can be only one active group at a time for a wireless adapter. The active group is designated with the icon in Figure 31 on page
52.
To select the active profile group, perform the following procedure:
1. Start the configuration program by clicking the program’s icon, shown in Figure 23 on page 35, located in the toolbar on the desktop.
The main window of the configuration utility is shown in Figure 24 on page 35.
2. In the Profile Group Control section of the Configuration tab, click the group to be designated as the active group and click Select. Alternatively, double-click the group. The selected group is designated with the symbol in Figure 31 on page 52.
The profiles stored in the selected group are now active. The wireless adapter will attempt to establish a connection to a wireless network using the profiles in the active group.
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Chapter 2: Using the Adapter’s Configuration Utility
56

Chapter 3

Microsoft Windows XP

This chapter contains the procedures for configuring the wireless adapter on a Microsoft Windows XP system. Sections in the chapter include:
“Setting the IP Address” on page 58
“Quick Configuration” on page 62
“Manually Configuring the Wireless Adapter” on page 65
Note
The wireless adapter is supported on Microsoft Windows 2000, but this guide does not contain instructions for configuring the adapter on that operating system.
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Chapter 3: Microsoft Windows XP

Setting the IP Address

To set the IP address of the adapter or to activate the DHCP client, perform the following procedure:
1. Open the Control Panel.
2. Double-click on Network Connections.
An example of the Network Connections window is shown in Figure
34.
Figure 34. Network Connections Window
3. Right-click on the Wireless Network Connection icon of the wireless adapter and select Properties from the pull-down menu, as shown in Figure 35.
Figure 35. Wireless Network Connection Pull-down Menu
58
AT-WCU201G Wireless Adapter Card Installation Guide
The Wireless Network Connections Properties window is shown in Figure 36.
Figure 36. Wireless Network Connection Properties Window
4. Select Internet Protocol (TCP/IP), then click Properties.
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Chapter 3: Microsoft Windows XP
The Internet Protocol (TCP/IP) Properties window is shown in Figure
37.
Figure 37. Internet Protocol (TCP/IP) Properties Window
5. If you want the adapter to obtain its IP address, subnet mask, and default gateway from a DHCP server on your network, select Obtain an IP address automatically. If you want to set these parameters manually, select Use the following IP address and enter the information into the fields.
6. If your network has a domain name service, which converts domain names into IP addresses, and you want the computer to obtain the IP address of the domain name server from a DHCP server, select Obtain DNS server address automatically. To enter the IP address of a domain name server manually, select Use the following DNS server addresses and enter the IP address in the field. You can enter up to two IP addresses of domain name servers. The alternate DNS server address is used only if the server specified as the preferred DNS server does not respond.
7. Click OK to close the Internet Protocol (TCP/IP) Properties window.
8. Click OK to close the Wireless Network Connection Properties window.
This completes the procedure for configuring the IP address and subnet mask of the wireless adapter card.
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AT-WCU201G Wireless Adapter Card Installation Guide
You are now ready to configure the adapter’s security system using the Wireless Adapter Configuration program.
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Chapter 3: Microsoft Windows XP

Quick Configuration

This procedure explains how to quickly configure the wireless adapter using Microsoft Windows XP. Note the following before performing this procedure:
You must be within reception range of a wireless router or access point
The wireless router or access point must be broadcasting its SSID.
If the wireless router or access point is running WEP security, the
To perform a quick configuration of the wireless adapter, perform the following procedure:
1. Power on the computer and attach the wireless adapter.
of the network.
network authentication setting must be Open system or both Open and Shared systems. The quick configuration procedure will not work if WEP security is set to Shared system only.
The computer will detect the wireless network and display a prompt above the wireless connection icon in the tool bar on the desktop, as shown in Figure 38.
Figure 38. Wireless Icon
2. Click the wireless icon in the toolbar.
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AT-WCU201G Wireless Adapter Card Installation Guide
Windows displays the SSIDs of the detected wireless networks in the Wireless Network Connection window. An example of the window is shown in Figure 39.
Figure 39. Wireless Network Connection Window
3. Double-click on the wireless network to connect to or, alternatively, click once on the network and click Connect.
If the wireless router or access point is running WEP, WPA, or WPA2, the Wireless Network Connection window, shown in Figure 40, prompts you for the WEP encryption key or, in the case of WPA or WPA2, the passphrase, also referred to as the shared secret. Go to Step 5 to enter the encryption key or passphrase.
Figure 40. Wireless Network Connection Prompt (WEP or WPA Security)
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Chapter 3: Microsoft Windows XP
If there is no security on the wireless network, the Wireless Network Connections window in Figure 41 is displayed.
Figure 41. Wireless Network Connection - No Security
4. Click Connect Anyway.
At this point, the wireless adapter establishes a connection with the wireless router or access point.
5. For WEP, WPA, or WPA2 security, in the Network Key and Confirm Network Key fields enter the router or access point’s encryption key in the case of WEP security or passphrase for WPA and WPA2 security.
After entering the key, the wireless adapter connects to the selected network.
64

Manually Configuring the Wireless Adapter

The following procedure explains how to configure the wireless adapter for the following wireless network environments:
No security
WEP security
WPA-PSK and WPA2-PSK security
Note
The AT-WCU201G wireless adapter also supports Ad Hoc, WPA/ WPA2 (Enterprise), and 802.1x authentication, but these topics are beyond the scope of this manual.
To manually configure the wireless adapter’s security settings, perform the following procedure:
AT-WCU201G Wireless Adapter Card Installation Guide
1. Connect the wireless adapter to the computer.
2. Open the Control Panel.
3. Double-click on Network Connections.
An example of the Network Connections window is shown in Figure 34 on page 58.
4. Right-click on the Wireless Network Connection icon of the wireless adapter and select Properties from the pull-down menu, as shown in Figure 35 on page 58.
The Wireless Network Connections Properties window is shown in Figure 36 on page 59.
5. Select the Wireless tab.
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Chapter 3: Microsoft Windows XP
The Wireless tab is shown in Figure 42.
Figure 42. Wireless Tab
6. Click Add. The Wireless Network Properties window is shown in Figure 43.
66
Figure 43. Wireless Network Properties Window
AT-WCU201G Wireless Adapter Card Installation Guide
7. Go to the appropriate subsection below for instructions on how to configure the Wireless Network Properties window for your wireless security system:
“No Security” on page 67
“WEP Security” on page 67
“WPA/WPA2-PSK Security” on page 68

No Security To configure the Wireless Network Properties window for a wireless

network that has no security, do the following:
1. Click the Network Name (SSID) field and enter the SSID of the wireless network. The network name is case sensitive.
2. Click the Network Authentication parameter and select Open System from the pull-down menu.
3. Click the Data Encryption parameter and select Disabled from the pull-down menu.
4. Click OK.

WEP Security To configure the Wireless Network Properties window for WEP security,

do the following:
1. Click the Network Name (SSID) field and enter the SSID of the wireless network. The network name is case sensitive.
2. Click the Network Authentication parameter and from the pull-down menu select either Open System or Shared Key.
A node in an Open System environment is not authenticated by the
access point. The node need only provide the SSID of the network.
A node in a Shared Key environment is authenticated by the
access point using a shared WEP key that is present on both the node and the access point. Only after a node is successful authenticated does the access point allow it access to the network.
3. Click the Data Encryption parameter and from the pull-down menu select WEP.
4. If the encryption key will not be provided automatically to the wireless adapter, click The key is provided for me automatically to deselect the option and perform steps 5 and 6. If the encryption key will be provided automatically to the adapter, leave the option enabled and go to step 7.
5. In the Network Key and Confirm Network Key fields, enter the encryption key from the wireless router or access point.
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Chapter 3: Microsoft Windows XP
6. Click Key Index and specify the position of the encryption key in the encryption key table on the wireless router or access point. The range is 1 to 4.
7. Click OK.
WPA/WPA2­PSK Security
To configure the Wireless Network Properties window for WPA-PSK or WPA2-PSK security, do the following:
1. Click the Network Name (SSID) field, enter the SSID of the wireless network. The network name is case sensitive.
2. Click the Network Authentication parameter and from the pull-down menu select either WPA-PSK or WPA2-PSK.
Note
Do not select WPA2-PSK unless the wireless router or access point supports WPA2.
3. Click the Data Encryption parameter and from the pull-down menu select either TKIP or AES.
4. In the Network Key and Confirm Network Key fields, enter the router or access point’s passphrase (also referred to as the shared secret).
5. Click OK.
68

Appendix A

Technical Specifications

This appendix lists the technical specifications of the AT-WCU201G wireless adapter.
General
Compliance Standard IEEE 802.11, IEEE 802.11b, IEEE 802.11g
Bus Interface Universal Serial Bus (USB) 2.0
Antenna Type Integrated antenna
IEEE 802.11b Operation
Standard IEEE 802.1b
Radio and Modulation Schemes
Operating Frequency 2400 ~ 2497 MHz ISM band
Channel Numbers 11 channels for United States
Data Rates 1, 2, 5.5, and 11 Mbps
Media Access Protocol CSMA/CA with ACK
Transmitter Output Power
Receiver Sensitivity Typical -82 dBm for 11 Mbps @ 8% Packet
DQPSK, DBPSK, DSSS, and CCK
13 channels for European countries
Typical 16 dBm at 1, 2, 5.5, and 11 Mbps
Error Rate (PER) Typical -87 dBm for 2 Mbps @ 8% PER
IEEE 802.1g Operation
Standard 2.4 GHz OFDM (IEEE 802.11g)
Radio and Modulation Schemes
BPSK, QPSK, 16QAM, 64QAM, and OFDM
Operating Frequency
2400 ~ 2497 MHz ISM band
69
Appendix A: Technical Specifications
Channel Numbers 11 channels for United States
13 channels for European countries
Data Rates
Media Access Protocol CSMA/CA with ACK
Transmitter Output Power
6, 9, 12, 18, 24, 36, 48, 54 Mbps
Typical RF output power at each data rate
+15 dBm at 48 and 54 Mbps +16 dBm at 36 Mbps +17 dBm at 6, 9, 12, 18, and 24 Mbps
Receiver Sensitivity
Typical sensitivity at which frame (1000-byte PDUs) error rate equals 10%:
-88 dBm at 6 Mbps
-86 dBm at 9 Mbps
-84 dBm at 12 Mbps
-82 dBm at 18 Mbps
-78 dBm at 24 Mbps
-74 dBm at 36 Mbps
-69 dBm at 48 Mbps
-66 dBm at 54 Mbps
Physical Specifications
Dimensions 25 (W) x 12 (D) x 81 (H) mm
Weight 40.3 g (main unit)
Physical and Environmental
Operating Temperature
Storage Temperature
Power Requirements
Operating Voltage 5VDC +/-5%
Current Consumption 472 mA at continuous transmit mode
0° C to 40° C (32° F to 104° F) Humidity: <90%
(non-condensing)
-25° C to 70° C (-13° F to 158° F) Humidity:
<95% (non-condensing)
290 mA at continuous receive mode
70

Appendix B

Regulatory Domains

This appendix lists the IEEE 802.11g channels supported by the world’s regulatory domains.
Regulatory Domains
Channel Identifier
12412
22417
32422
42427
52432
62437
72442
82447
92452
Frequency (MHz)
United States (FCC)
XX
XX
XX
XX
XX
XX
XX
XX
XX
Mexico
Germany, Italy, United Kingdom (ETSI)
France
10 2457
11 2462
12 2467
13 2472
14 2484
XX X X
XX X X
XX
XX
71
Appendix B: Regulatory Domains
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