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Contents: 

About the 802.11g 
Wireless USB Adapter 

 

Network Configuration 
and Planning > 

Adapter Installation and 
Configuration for 
Windows 
98SE/2000/Me/XP 

 

Navigating the Wireless 
Configuration Utility

 

Troubleshooting

  

Glossary

  

Product Specifications 
for 802.11g Wireless 
USB Adapter 

 

U.S. Robotics 
Corporation Limited 
Warranty

  

Regulatory Information

 

802.11g Wireless USB Adapter User Guide 

 

Network Configuration and Planning 

The 802.11g Wireless USB Adapter supports legacy Ethernet LAN network 
configuration options as defined by the IEEE 802 standards committee.  

The 802.11g Wireless USB Adapter can be configured as one of the following:  

z

802.11g AdHoc for departmental or Small Office and Home Office (SOHO) 
LANs  

z

Infrastructure for enterprise LANs  

z

LAN Interconnection for point-to-point link as a campus backbone  

NETWORK TOPOLOGY 

An 802.11g AdHoc wireless LAN is a group of computers, each equipped with one 
Wireless Access Card or Adapter, that is connected as an independent wireless 
LAN. Computers in a specific 802.11g AdHoc wireless LAN must be configured to 
share the same radio channel.  

802.11g AdHoc wireless LAN configurations are appropriate for branch level 
departments or SOHO operations.  

The 802.11g Wireless USB Adapter provides access to a wired LAN for wireless 
workstations. An integrated wireless and wired LAN is called an Infrastructure 
configuration. A group of 802.11g Wireless USB Adapter users and a Wireless 
Access Point compose a Basic Service Set (BSS). Each 802.11g Wireless USB 
Adapter in a BSS can talk to any computer in the wired LAN infrastructure through 
the Wireless Access Point.  

An Infrastructure configuration extends the accessibility of a PC to a wired LAN and 
doubles the effective wireless transmission range for two 802.11g Wireless USB 
Adapters. Since the Wireless Access Point is able to forward data within its BSS, the 
effective transmission range in an infrastructure LAN is doubled.  

The use of a unique ID in a BSS is essential. Any PCs equipped with 802.11g 
Wireless USB Adapters and configured without roaming options in an independent 
BSS must be configured with a BSS ID that corresponds to the 802.11g Wireless 
USB Adapter used in the BSS. Check your 802.11g Wireless USB Adapter for its 
BSS ID or use the Access Point Configuration Utility program to determine the BSS 
ID.  

The Infrastructure Wireless Access LAN configuration is appropriate for enterprise-
scale wireless access to a central database or as a wireless application for mobile 
users.  

A point-to-point LAN configuration is possible when two Wireless Access Points are 
linked with an optional directional antenna (the directional antenna is an optional 
accessory; please contact your dealer for information). The optional directional 
antenna makes LAN Interconnection to a wireless backbone between buildings 
possible.  

ROAMING 

Infrastructure configuration also supports roaming capabilities for mobile users. More 

Summary of Contents for USR5420

Page 1: ...B Adapter z Supports up to 54 Mbps data rate z Working range of up to 800 ft in an open environment enhances mobility z Supports point to point and point to multipoint access which provides increased flexibility z Seamless connectivity to wired Ethernet and PC network LANs allowing quick trouble free integration with existing networks z Direct Sequence Spread Spectrum DSSS technology provides secu...

Page 2: ...nfiguration A group of 802 11g Wireless USB Adapter users and a Wireless Access Point compose a Basic Service Set BSS Each 802 11g Wireless USB Adapter in a BSS can talk to any computer in the wired LAN infrastructure through the Wireless Access Point An Infrastructure configuration extends the accessibility of a PC to a wired LAN and doubles the effective wireless transmission range for two 802 1...

Page 3: ...ess USB Adapters and Wireless Access Points within one ESS must be configured with the same ESS ID and use the same radio channel Before enabling an ESS with roaming capability choose a feasible radio channel and optimum Access Point position Proper Wireless Access Point positioning and a clear radio signal will greatly enhance the performance ...

Page 4: ... laptop computer Type your password if you are prompted to do so Attention Windows XP Users Before you install the 802 11g Wireless USB Adapter you must have Service Pack 1 installed on your computer If you do not have Service Pack 1 installed the 802 11g Wireless USB Adapter software will not be properly installed and the adapter will not function correctly Note Be sure to find out what letter yo...

Page 5: ...the USB cable is loose on either end Make sure the USB cable is fully inserted into the USB port on your computer and to the USB port on the 802 11g Wireless USB Adapter When Windows detects the new hardware follow the on screen instructions to complete the installation procedure If you are prompted restart your computer Note If you are prompted at any time for your Windows Operating System CD ROM...

Page 6: ...ce in the middle and an icon representing the Internet If you see a moving graphic of ones and zeroes moving between all three icons you are connected to the wireless network and to the Internet If you only see ones and zeroes moving between the computer and the middle wireless device you are connected to the wireless network but not to the Internet If you can t connect to a network or if that net...

Page 7: ...will appear in the taskbar on the right side near the clock Double clicking the icon in the Quick Launch bar will open the Wireless Configuration Utility main menu providing quick access to all adapter settings There are four sections to the Wireless Configuration Utility Link Information Available Networks Profile Setting and About Link Information The Link Information area shows a graphical repr...

Page 8: ...find options for configuring your 802 11g Wireless USB Adapter On the left you will see a list of the available wireless networks to which you can connect Select the appropriate network name and click Connect Next to the Network Name list is the Band column This lets you know what frequency each wireless network is operating on The 802 11g Wireless USB ...

Page 9: ...less Access Point it must support the Transmit Rate setting If the Wireless Access Point does not support the Transmit Rate undesired results may occur Profile Setting If you will be connecting to different wireless networks in different areas or will be conecting to wireless networks that have security settings enabled you can create profiles so that you can easily switch between networks dependi...

Page 10: ...wireless device or network Creating a Profile After you click Add the first screen you see will prompt you for a Profile Name Supply a name that will allow you to easily identify the profile in the Profile Setting screen After you have entered a name click Next On the next screen you will need to enter the name of the network you which you want to connect ...

Page 11: ...c You can then select the transfer rate or you can leave it set to Automatic On Automatic the 802 11g Wireless USB Adapter will match the fastest speed of the wireless network to which you are connected This means that the 802 11g Wireless USB Adapter will not achieve its maximum speed if the wireless network does not support the same maximum speed When you are finished click Next On the next scre...

Page 12: ...Key WPA PSK Authentication Off If you select Off no security settings will be enabled Click Next On the next screen you can select either Enable or Disable for the IP Setting If you select Disable click Complete to finish the profile setup ...

Page 13: ...ceed to the next screen where you can select or specify the IP address information If you select Enable for the DHCP Status the 802 11g Wireless USB Adapter will automatically obtain an IP address Click Complete to finish the profile setup ...

Page 14: ...ill then need to select the level of Encryption You can select either 64 bit or 128 bit This encryption is known as WEP WEP is an encryption scheme that is used to protect your wireless data communications WEP uses a combination of 64 bit keys or 128 bit keys to provide access control to your network and encryption security for every data transmission To decode a data transmission each wireless cl...

Page 15: ...is any text string with a maximum of 32 characters Enter your key or passphrase in the Key line After you have selected the Input Method you will need to select the Key Index When you are finished click Next On the next screen you can select either Enable or Disable for the IP Setting ...

Page 16: ... setup If you select Enable click Next to proceed to the next screen where you can select or specify the IP address information If you select Enable for the DHCP Status the 802 11g Wireless USB Adapter will automatically obtain an IP address Click Complete to ...

Page 17: ...ile setup Shared Key If you select Shared Key you will then need to select the Input Method level You can select either 64 bit or 128 bit WEP is an encryption scheme that is used to protect your wireless data communications WEP uses a combination of 64 bit keys or 128 bit keys to provide access control to your network and encryption security for every data transmission To decode a data transmissio...

Page 18: ...an select either Alphanumeric Hexadecimal 0 9 A F or Passphrase The Passphrase is any text string with a maximum of 32 characters Enter your key or passphrase in the Key line After you have selected the Input Method you will need to select the Key Index ...

Page 19: ...reen you can select either Enable or Disable for the IP Setting If you select Disable click Complete to finish the profile setup If you select Enable click Next to proceed to the next screen where you can select or specify the IP address information ...

Page 20: ...reless USB Adapter When you have entered all the information click Complete to finish the profile setup WPA PSK If you select WPA PSK you will then need to select the Input Method level You can select either TKIP or AES Note WPA PSK can only be used if the wireless network you want to connect to is capable of employing WPA PSK as an authentication mode Many older wireless devices may not be able t...

Page 21: ...When you have made your selection click Next You will then need to enter a Key When you are finished click Next On the next screen you can select either Enable or Disable for the IP Setting ...

Page 22: ... setup If you select Enable click Next to proceed to the next screen where you can select or specify the IP address information If you select Enable for the DHCP Status the 802 11g Wireless USB Adapter will automatically obtain an IP address Click Complete to ...

Page 23: ... if your computer cannot automatically obtain an IP address for the 802 11g Wireless USB Adapter When you have entered all the information click Complete to finish the profile setup About Within this section you can view the version information for your 802 11g Wireless USB Adapter Regulatory Channel Frequency Channel Frequency MHz FCC Canada ETSI Japan ...

Page 24: ...1 2412 X X X 2 2417 X X X 3 2422 X X X 4 2427 X X X 5 2432 X X X 6 2437 X X X 7 2442 X X X 8 2447 X X X 9 2452 X X X 10 2457 X X X 11 2465 X X X 12 2467 X 13 2472 X 14 2484 X ...

Page 25: ... such as 256 bit Verify that all of the security features you have entered for the profile of your 802 11g Wireless USB Adapter match the settings for your wireless network For more information about setting up connection profiles and security features refer to the User Guide on the U S Robotics Installation CD ROM The 802 11g Wireless USB Adapter cannot communicate with other computers linked via...

Page 26: ...not work properly and I may need to uninstall the device Possible Solution Check to be certain the 802 11g Wireless USB Adapter is not in use before removing it The computer may lock up if the 802 11g Wireless USB Adapter is removed while in use If the 802 11g Wireless USB Adapter is not functioning correctly perform the following steps Windows XP Users Click Windows Start All Programs U S R Wirel...

Page 27: ...rt usr com 9 00 18 00 Monday Friday Italy 848 80 9903 http www usr com emailsupport it 9 00 18 00 Monday Friday Luxembourg 352 342 080 8318 emea_modemsupport usr com 9 00 18 00 Monday Friday Middle East Africa 44 870 844 4546 me_modemsupport usr com 9 00 18 00 Monday Friday Netherlands 0900 202 5857 emea_modemsupport usr com 9 00 18 00 Monday Friday Norway 47 23 50 0097 emea_modemsupport usr com 9...

Page 28: ...nected with other cells bases Bridge An internetworking function that incorporates the lowest two layers of the OSI network protocol model BSS An acronym for Basic Service Set this is an Access Point that is associated with several wireless stations ESS An acronym for Extended Service Set this is a roaming domain More than one BSS can be configured as an Extended Service Set Ethernet A popular loc...

Page 29: ...es with IEEE 802 11g Frequency Band z 2400 2483 5MHz for US Canada and ETSI Modulation Type BPSK QPSK CCK OFDM Operating Channels z 11 channels US Canada z 13 channels ETSI Radio Technology Direct Sequence Spread Spectrum DSSS Data Rate 54 48 36 24 18 12 9 6 11 5 5 2 11 Mbps with auto fallback Output Power 16 18 dBm Receive sensitivity 80dBm Antenna Type Built in diversity patch antenna Current Co...

Page 30: ...pplicable service fees All products or parts that are exchanged for replacement will become the property of U S ROBOTICS 1 7 U S ROBOTICS warrants any replacement product or part for NINETY 90 DAYS from the date the product or part is shipped to Customer 1 8 U S ROBOTICS makes no warranty or representation that this product will meet CUSTOMER requirements or work in combination with any hardware o...

Page 31: ...tever extent it deems necessary to restore the product or part to operating condition 4 7 U S ROBOTICS will make reasonable effort to ship repaired or replaced product or part to CUSTOMER at U S ROBOTICS expense not later than TWENTY ONE 21 DAYS after U S ROBOTICS receives the authorized CUSTOMER return at an authorised U S ROBOTICS Return Centre 4 8 U S ROBOTICS shall not be liable for any damage...

Page 32: ...R INTERRUPTION OF ITS PRODUCTS EVEN IF U S ROBOTICS OR ITS AUTHORISED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT U S ROBOTICS OPTION THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE 6 0 DISCLAIMER Some countries stat...

Page 33: ...ich the receiver is connected Consult the dealer or an experienced radio TV technician for help The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations Modifications to these devices not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment FCC Radiation Exposu...

Page 34: ...t of measure The maximum SAR value of this wireless device measured in the conformity test is x xxx W kg EU Detachable Antenna Information This USR wireless device has been designed to operate with the antenna included in this package only Together this device and antenna combination has been tested and approved by a European Agency conforming with the European R TTE directive 1999 5 EC to meet th...

Page 35: ...ases only All trademarks product names or brand names appearing in this document are registered property of their respective owners Please contact our support center for an RMA number before sending your product to the repair address Product sent to the repair address without an RMA number will be returned unopened In North America and South America U S Robotics Chino 14430 Monte Vista Avenue Chin...

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