FCC ID: HEDWN3501CACC Wireless USB Adapter

Wireless USB Adapter WN3501C Quick Installation Guide Quick Installation Guide Wireless USB Adapter 11 Mbps Wireless Network Adapter Copyright 2002 by Accton Technology Corporation. All rights reserved. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Accton Technology Corporation. Accton makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability, quality, or fitness for any particular purpose. The information in this document is subject to change without notice. Accton reserves the right to make revisions to this publication without obligation to notify any person or entity of any such changes. International Headquarters No. 1 Creation Road III, Science-based Industrial Park Hsinchu 300, Taiwan, R.O.C. Phone: +886-3-5770-270 Fax: +886-3-5770-267 Internet: support@accton.com.tw Asia Pacific Headquarters 1 Claymore Drive

#08-05/06 Orchard Towers (Rear Block) Singapore 229594 Phone: +65 238 6556 Fax: +65 238 6466 Internet: www.acctontech.com Europe Headquarters Edificio Conata II, Calle Fructus Gelabert 6-8, 2o, 4a, 08970 - Sant Joan Desp, Barcelona, Spain. Phone: +34-93-477-4920 Fax: +34-93-477-3774 USA Headquarters 6 Hughes Irvine, CA 92618 Phone Numbers:

Sales: +800-926-9288 Support: +888-398-4101 or +949-707-4847 RMA: +800-762-4968 Fax: +949-707-2460 Accton is a trademark of Accton Technology Corporation. Other trademarks or brand names mentioned herein are trademarks or registered trademarks of their respective companies. WN3501C E032002R01 150417-102 Compliances FCC - Class B 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 instructions, may cause harmful interference to radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient 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 In order to maintain compliance with the limits for a Class B digital device, SMC requires that you use a quality interface cable when connecting to this device. Changes or modifications not expressly approved by SMC could void the users authority to operate this equipment. Attach unshielded twisted-pair cable (UTP) to the RJ-45 port and shielded USB cable to the USB port. Note:

Industry Canada - Class B This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled Digital Apparatus, ICES-003 of Industry Canada. Cet appareil numrique respecte les limites de bruits radiolectriques applicables aux appareils numriques de Classe B prescrites dans la norme sur le matrial brouilleur: Appareils Numriques, NMB-003 dicte par lIndustrie. v COMPLIANCES EC Conformance Declaration - Class B SMC contact for these products in Europe is:

SMC Networks Europe, Edificio Conata II, Calle Fructus Gelabert 6-8, 2o, 4a, 08970 - Sant Joan Desp, Barcelona, Spain. This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied:

RFI Emission:

Limit class B according to EN 55022:1998 Limit class B for harmonic current emission according to EN 61000-3-2/1995 Immunity:

Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3/1995 Product family standard according to EN 55024:1998 Electrostatic Discharge according to EN 61000-4-2:1995

(Contact Discharge: 4 kV, Air Discharge: 8 kV) Radio-frequency electromagnetic field according to EN 61000-4-3:1996

(80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m) Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/

DC power supply: 1 kV, Data/Signal lines: 0.5 kV) Surge immunity test according to EN 61000-4-5:1995

(AC/DC Line to Line: 1 kV, AC/DC Line to Earth: 2 kV) Immunity to conducted disturbances, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m) Power frequency magnetic field immunity test according to EN 61000-4-8:1993 (1 A/m at frequency 50 Hz) Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30%

Reduction @500 ms, >95% Reduction @5000 ms) LVD:

EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997) vi Contents WN3501C Wireless USB Adapter Introduction System Requirements Package Checklist Applications Hardware Description LED Indicator Multi-choice Mounting Clip Hardware Installation Attaching the Clip (Optional) Attaching the Magnets (Optional) Attaching the Velcro (Optional) Attaching the USB Cable Driver Installation Windows 98/Me Driver Installation Setting Wireless Properties Windows 2000 Driver Installation Windows XP Driver Installation Configuration and Diagnostics Monitor Statistics Site Survey Encryption Advanced Version Using the Windows XP Configuration Tool Basic Settings Advanced Settings Network Configuration and Planning Network Topologies Ad Hoc Wireless LAN Infrastructure Wireless LAN Setting the Communication Domain Troubleshooting USB Adapter Installation Problems Installing the Utility in Windows 98, Me, and 2000 Using the Wireless LAN Utility in Windows 98, Me, and 2000 1 1 1 1 2 3 3 3 4 4 4 4 4 5 5 7 16 19 22 22 22 23 24 25 25 27 27 27 27 29 30 30 30 31 31 33 33 vii Contents Network Connection Problems WN3501C Wireless USB Adapter Maximum Distance Table Specifications Terminology Warranty 33 35 36 38 40 viii Quick Installation Guide WN3501C Wireless USB Adapter Introduction Acctons WN3501C Wireless USB Adapter is an 11 Mbps wireless network adapter that seamlessly integrates with existing Ethernet networks to support applications such as mobile users or temporary conferences. This solution offers fast, reliable wireless connectivity with considerable cost savings over wired LANs (which include long-term maintenance overhead for cabling.) Just plug wireless adapters into your desktop PCs and start networking. Using this adapter in conjunction with an Accton Wireless Access Point or Wireless Access Point/Bridge, you can create an instant network that integrates seamlessly with 10 Mbps Ethernet LANs. Moreover, moving or exanding your network is as easy as moving or installing additional Wireless AP/Bridges no wires!

System Requirements Before you install the Wireless USB Adapter, check your system meets the following requirements:

An available USB port.

Windows 98/Me/2000/XP (have the Windows installation CD-ROM ready for use during driver installation.)

A minimum of 1 MB of free disk space for installing the driver and utility program. Another IEEE 802.11b compliant device installed in your network, such as a Wireless Access Point, or another PC with a wireless adapter. Package Checklist The Wireless USB Adapter package includes:

1 Wireless USB Adapter with internal dual dipole antennas (WN3501C)

1 Driver diskette

1 Utility diskette

1 USB cable

1 Fastening clip

3 Peices of Velcro

2 Magnets

This User Guide Please complete the warranty registration card and return to Accton, or register online at: register.acctontech.com. 1 11 Mbps Wireless USB Adapter Inform your dealer if there are any incorrect, missing, or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the product in case there is a need to return it for repair. Applications Wireless products offer fast, reliable, cost-effective network access for wireless clients in applications such as:

Remote access to corporate network information E-mail, file transfer, and terminal emulation

Difficult-to-wire environments Historic or old buildings, asbestos installations, and open areas where wiring is difficult to employ

Frequently changing environments Retailers, manufacturers, and banks who frequently rearrange the workplace and change location

Temporary LANs for special projects or peak time Trade shows, exhibitions, and construction sites that need to setup for a short time period. Retailers, airline, and shipping companies who need additional workstations for peak periods. Auditors who require workgroups at customer sites

Access to databases for mobile workers Doctors, nurses, retailers, white-collar workers who need access to databases while being mobile in a hospital, retail store, office, campus etc.

SOHO users SOHO (Small Office Home Office) users who need quick and easy installation of a small computer network 2 Quick Installation Guide Hardware Description Acctons Wireless USB Adapter supports an 11 Mbps half-duplex connection to Ethernet networks. The adapter is fully compliant with 2.4 GHz DSSS CSMA/CA wireless networking as defined in IEEE 802.11b. It can be installed in any notebook or desktop with a USB port. Support is provided for Windows 98/Me/2000/XP. LED Indicator The Wireless USB adapter includes an LED indicator, as described in the following table. Status On Flashing Description Power is being supplied to the adapter. Adapter is receiving or transmitting data via a wireless connection. Multi-choice Mounting Clip The WN3501C USB adapter is supplied with a multi-choice mounting clip. Magnets and velcro may also be attached to the clip for mounting in a variety of locations. 3 11 Mbps Wireless USB Adapter Hardware Installation Attaching the Clip (Optional) 1. Slide the open end of the clip under the two lips (at the USB port end) in the square slot at the rear of the WN3501C. 2. Press the two lugs into the slots until they click into place. 3. To remove the clip, push in one of the lugs and pull the clip away from the WN3501C body. The other lug should slip free. Attaching the Magnets (Optional) 1. Peel the protective paper off the magnets and place the sticky side of the magnets into the circular holes at the rear of the clip. 2. Press firmly. Warning: Sticking magnets to a notebook screen will damage the screen. Attaching the Velcro (Optional) 1. Peel the protective paper off the Velcro circles and firmly press the circles into the circular holes at the rear of the clip. 2. Temporarily hold the WN3501C in the desired location and check the signal quality is acceptable. Peel the protective paper off the Velcro strip and stick the strip in the chosen location. Attaching the USB Cable 1. Select an available USB port on the PC. 2. Carefully insert the USB cables Type-A plug (i.e., the flat plug) into the USB port and press until it is firmly seated in the port. Insert the other end of the cable into the WN3501C. Warning: The plugs will only go into their respective slots one way. If the plugs do not comfortably enter the slots, turn them around and try again. 4 Quick Installation Guide Driver Installation The diskette labeled Driver Diskette, that comes with the package contains the software drivers for the Wireless USB adapter. Backup your driver diskette and use the copy as the working diskette to protect the original from accidental damage. New or updated drivers can be downloaded from Acctons web site at:

http://www.acctontech.com For installation in Windows 98/Me see the following page. For Windows 2000 see Windows 2000 Driver Installation on page 16, and for Windows XP see Windows XP Driver Installation on page 19. Windows 98/Me Driver Installation 1. Windows 98/Me will automatically detect the new hardware and prompt you to install the driver. 5 11 Mbps Wireless USB Adapter 2. Click Next. 3. Check Floppy disk drives. Insert the floppy disk labeled Driver into the floppy disk drive and click Next. 4. Click Next to copy files from the floppy disk. Windows 98 may ask you for the Windows 98 CD-ROM. If so, insert the disk and click OK. 5. Click Finish to complete the driver installation. You may be asked to restart the computer. Click Yes. The configuration utility allows you to make various settings and to monitor the performance of the Wireless USB adapter. To install the utility see Installing the Utility in Windows 98, Me, and 2000 on page 22. For Windows XP see Using the Windows XP Configuration Tool on page 27. 6 Setting Wireless Properties 1. Click Start/Settings/Control Panel. Double-click the Network icon. Quick Installation Guide 2. On the Configuration tab, double-click the WN3501C adapter. 7 11 Mbps Wireless USB Adapter 3. On the Advanced tab you will find a list of properties. 4. To communicate with Accton 11 Mbps Wireless devices, set the Authentication Type to Shared Key. Products from some other vendors may use the setting Open System. Use the same setting as the other devices in your network. 5. Set the Channel to the same radio channel as that used by the other wireless clients in your group. However, if you are connecting to a network via an access 8 point, the adapter will automatically set the channel to the same as that used by the access point.. Quick Installation Guide 6. Wired Equivalent Privacy (WEP) is implemented in the adapter to prevent unauthorized access. For more secure data transmissions, set encryption to 128-bit or 64-bit. The 128-bit setting gives a higher level of security. The setting must be the same for all clients in your wireless network (Default:

9 11 Mbps Wireless USB Adapter Disabled). To completely configure WEP, you must use the Configuration Utility.

(see Encryption on page 25). 7. Set the ESSID identifier to the same as that used by the ad hoc workgroup or access point to which you want to connect (the WN3501C Access Point default is WLAN). If you will be roaming among multiple access points with different BSS IDs, a value of ANY will allow connection to any SSID. 8. Set the Fragmentation Threshold, (The default 2,346 means Disabled) see Terminology on page 38 for a description of Fragmentation Threshold. 10 Quick Installation Guide 9. Set the Operating Mode to 802.11 Ad Hoc or Infrastructure depending on the type of network to which you want to connect (see Terminology on page 38.) 10. Preamble Type offers a dropdown list with three options: Auto, Long, or Short

(see Terminology on page 38 for an explanation of Preamble Type.) 11 11 Mbps Wireless USB Adapter If you aren't sure whether all the Clients and Access point radios in your wireless network support the Short RF preamble, then leave this setting on Auto

(Default). 11. Rate (Mbps) is the data transmission/reception rate setting. It can be set to Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps. Usually this should be set to Auto. In a radio frequency hostile environment, a lower rate can provide more stable transmission quality. 12 Quick Installation Guide 12. Set the RTS Threshold to the same as that used by other devices in your network (the default 2,347 means Disabled, see Terminology on page 38 for a description of RTS Threshold.) The WEP encryption implemented in Acctons Wireless USB adapter is based on the RC4 encryption algorithm. The security keys are four 10 digit keys for the 64-bit WEP 13 11 Mbps Wireless USB Adapter setting, and one 26-digit key for the 128-bit WEP setting. WEP must be set in the configuration utility and all changes can be made there (see Using the Wireless LAN Utility in Windows 98, Me, and 2000 on page 22, or see Using the Windows XP Configuration Tool on page 27 for details). 13. Shows the key that will be used (1~4) for encryption. 14 Quick Installation Guide 14. WEP Mode allows you to permit only connections to other devices that use WEP encryption. Choose Optional if you will connect to computers not using WEP. 15. Click OK to return to the Network box 16. Insert the Windows 98/Me CD-ROM and click OK. Windows will begin copying required files to your system. Click Finish and restart your computer. 17. If you want to add more protocols after installation, go to the control panel and double-click Network. 18. On the Configuration tab, click Add. Double-click Protocol and add the network protocols you wish to use. If you install TCP/IP, be sure to set the appropriate Gateway, DNS Server, and Domain for your network. If you install an IPX/SPX compatible protocol, then you also need to install the Client for NetWare Networks. 15 11 Mbps Wireless USB Adapter 19. Click File and Print Sharing to share files or printers. 20. Click on the Identification tab in the Network dialog box, and specify your computer name and network workgroup. Click OK in the Network dialog box and the system will restart your computer. Windows 2000 Driver Installation 1. Windows 2000 will automatically detect the new hardware and prompt you to 16 install the driver. Click Next to find the driver. Quick Installation Guide 2. Insert the floppy disk labeled Driver diskette, check Floppy disk drives, and click Next. 17 11 Mbps Wireless USB Adapter 3. Click Next to copy files from the floppy disk. 4. The Digital Signature Not Found screen will open. Though our software is compatible with Windows 2000, it has not been tested by Microsoft. Click Yes to continue with the installation. 5. Click Finish to complete the driver installation. If you are asked to restart the computer, click Yes. 18 Quick Installation Guide Windows XP Driver Installation 1. Windows 2000 will automatically detect the new hardware and prompt you to install the driver. Check Install from a list or specific location (Advanced) and click Next. 2. Check Dont search. I will choose the driver to install. The Select Network Adapter screen will open. Click Have Disk and the Install From Disk screen will open. 19 11 Mbps Wireless USB Adapter 3. Type A:\xp and click OK 4. Windows XP will find the WN3501C Wireless USB Adapter. Click Next. 20 5. Though the software is fully compatible with Windows XP, it has not yet been Logo tested by Microsoft. On the Hardware Installation screen click Continue Anyway. Quick Installation Guide 6. After the software has been installed, click Finish to complete the driver installation. 21 11 Mbps Wireless USB Adapter Configuration and Diagnostics For Windows 98, Me, and 2000, Acctons Wireless USB Adapter provides optional management software for quick network configuration and easy diagnostics. For Windows XP, use the built-in wirelesss configuration tool (Go to see Using the Windows XP Configuration Tool on page 27.) Installing the Utility in Windows 98, Me, and 2000 To install the utility software:

1. Insert the Utility diskette in your PCs floppy drive (A:). 2. Click Start/Run... from the Windows Start menu bar. 3. Enter A:\Setup.exe and click OK. 4. Follow the on-screen instructions to finish the installation. Using the Wireless LAN Utility in Windows 98, Me, and 2000 Once the installation is complete, the configuration utility can be accessed by selecting the Wireless USB Utility icon from the Wireless USB folder. A quick launch icon will appear in the lower right-hand corner of the task bar. Double-clicking the icon will open the Wireless USB Utility program, providing quick 22 Quick Installation Guide access to the adapter settings The configuration utility includes the following tools:

Monitor Allows you to monitor network status and configure wireless adapter parameters. Statistics Shows wireless adapter statistics. Site Survey Scans/Shows all the access points in range. Encryption Provides WEP security control. Advanced Allows you to configure the advanced settings. Version Shows the version information. Monitor When you open the wireless USB utility, the information window for the WN3501C is shown as in the figure below. The Monitor page shows the network status of the wireless adapter. Click Modify to configure the Operating Mode, Channel, SSID and Tx Rate. After configuration, click Apply to save the changes. Operating Mode Set the station operation mode to 802.11 Ad Hoc for network configurations that do not have an access point, or to Infrastructure for configurations with an access point (Infrastructure is the default setting.) Channel If you are setting up an ad hoc wireless LAN (see page 30), set the channel number to the same radio channel as that used by the other wireless clients in your group. However, if you are connecting to a network via an access point, then 23 11 Mbps Wireless USB Adapter the channel is automatically set to the channel of the access point to which the adapter connects. Note: The Channel can only be set when the Operating Mode is 802.11 Ad Hoc. SSID Input an SSID string for the wireless network to which you want to connect

(ANY is the default setting). If you will be roaming among multiple access points with different BSSIDs, a value of ANY will allow connection to any SSID. Tx Rate Indicates the data transmission rate (Default: Fully Automatic). Select an appropriate transmission speed. Lower speeds will give better range (see WN3501C Wireless USB Adapter Maximum Distance Table on page 35. Statistics The Statistics screen displays Data Frames and Management Frames. (see Terminology on page 38 for a description of these terms). 24 Site Survey The Site Survey screen displays all access points in the wireless LAN. You can choose one of them to connect to by double-clicking on an entry. Quick Installation Guide AcctonAP AcctonAP AcctonAP AcctonAP Encryption Encryption Wired Equivalent Privacy (WEP) is implemented in the adapter to prevent unauthorized access. For more secure data transmissions, set encryption to 128-bit or 64-bit. The 128-bit setting gives a higher level of security. The setting must be the same for all clients in your wireless network (Default: Disabled). The WEP encryption implemented in Acctons Wireless USB adapter is based on the RC4 encryption algorithm. The security keys are four 10 digit keys for the 64-bit WEP 25 11 Mbps Wireless USB Adapter setting, and one 26-digit key for the 128-bit WEP setting. Create with Passphrase Security keys for WEP encryption are generated from a passphrase string, so you must use the same passphrase on all the other stations in your network. Manual Entry Manual Entry allows you to manually enter key elements. Default Key ID Choose the Key ID that has the encryption string you prefer. If you are using a key generated from a passphrase, you must use the same passphrase and key on each station. To use the WEP function, complete the following steps:

1. Select 128-bit or 64-bit in the Encryption field. 2. Check Create with Passphrase, type a string in the Passphrase field, and click Generate. 3. Select the key, and click Apply. Note:A Passphrase string can consist of up to 32 alphanumeric characters. Or 1. Check Manual Entry and enter text into one of the key fields. Keys may be entered as regular text or be in hexadecimal numerals (0~9, A~F). 2. Click Apply. 26 Quick Installation Guide Advanced Use this screen to set values for the Fragmentation Threshold (Default: 2346 means Disabled), and RTS/CTS Threshold (Default: 2347 means Disabled). see Terminology on page 38 for a description of these terms. Version This screen displays the driver, firmware, and utility version numbers. Using the Windows XP Configuration Tool Basic Settings 1. Right-click the network connection icon on the toolbar. 27 11 Mbps Wireless USB Adapter 2. Click Status. The Wireless Network Connection Status box will open. 3. Click Properties. The Wireless Network Connection Properties box will open. Click the Wireless Networks tab. In the lower section of the screen, click Learn about setting up wireless network configuration and complete the wireless configuration according to the Help and Support Center instructions. 4. 28 Quick Installation Guide Advanced Settings Click the General tab (see the screen above). In the Connect using field, make sure that the adapter shown is the WN3501C Wireless USB Adapter. 1. Click Configure. Click the Advanced tab. 2. Set the Fragmentation Threshold (the default 2,346 means Disabled). see Terminology on page 38 for a description of Fragmentation Threshold. 3. 4. Preamble Type offers a dropdown list with three options: Auto, Long, or Short. see Terminology on page 38 for an explanation of Preamble Type. If you aren't sure whether all the Clients and Access point radios in your wireless network support the Short RF preamble, then leave this setting on Auto

(Default). Rate (Mbps) is the data transmission/reception rate setting. It can be set to Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, or 11 Mbps. Usually this should be set to Auto. In a radio frequency hostile environment, a lower rate can provide more stable transmission quality. 5. Set the RTS Threshold (the default 2,347 means Disabled) to the same as that used by other devices in your network (see Terminology on page 38 for a description of RTS Threshold). 29 11 Mbps Wireless USB Adapter Network Configuration and Planning Acctons Wireless Solution supports a stand-alone wireless network configuration, as well as an integrated configuration with 10 Mbps Ethernet LANs. For a list of the maximum distances between the AP/Bridge and wireless clients, refer to page 35. The WN3501C USB adapter can be configured as:

Ad hoc for small departmental or SOHO LANs Infrastructure for enterprise LANs Network Topologies Ad Hoc Wireless LAN An ad hoc wireless LAN consists of a group of computers, each equipped with a wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must be configured to the same radio channel. Ad-hoc Wireless LAN An ad hoc wireless LAN can be used for a small branch office or SOHO operation. Notebook with Wireless USB Adapter Notebook with Wireless PC Card PC with Wireless PCI Adapter 30

Quick Installation Guide Infrastructure Wireless LAN The WN3501C can also provide access to a wired LAN for wireless workstations. An integrated wired and wireless LAN is called an Infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN. Each wireless PC in this BSS can talk to any computer in its wireless group via a radio link, or access other computers or network resources in the wired LAN infrastructure via the access point. The infrastructure configuration not only extends the accessibility of wireless PCs to the wired LAN, but also increases the effective wireless transmission range for wireless PCs by passing their signal through one or more access points. A wireless infrastructure can be used for access to a central database, or for connection between mobile workers, as shown in the following figure. Wired LAN Extension to Wireless Adapters File Server Desktop PC Switch Notebook with Wireless USB Adapter Access Point PC with Wireless PC I Adapter Setting the Communication Domain Stationary Wireless PCs The Basic Service Set (BSS) is the communication domain for each access point. For wireless PCs that do not need to support roaming, set the domain identifier

(SSID) for the wireless adapter to the BSS ID of the access point to which you want to connect. Check with your administrator for the BSS ID of the access point to which he wants you to connect. Roaming Wireless PCs A infrastructure network also supports roaming for mobile workers. More than one access point may be configured with the same SSID to create an Extended Service Set (ESS). By placing the access points so that a continuous coverage area is created, wireless users within this ESS can roam freely. All Accton Wireless adapters 31 11 Mbps Wireless USB Adapter and EZ Connect Wireless Access Points within a specific ESS must be configured with the same SSID. Desktop PC File Server Switch Notebook with Wireless PC Card Adapter Switch Notebook with Wireless USB Adapter Access Point

<BSS2>

Access Point

<ESS>

<BSS1>

PC with Wireless PC I Adapter Seamless Roaming Before setting up an ESS for roaming, choose a location for the access points that maximizes performance (refer to see Using the Wireless LAN Utility in Windows 98, Me, and 2000 on page 22 for information on using the Monitor and Site Survey tools.) 32 Quick Installation Guide Troubleshooting USB Adapter Installation Problems If your computer cannot find the Wireless USB Adapter or the network driver does not install correctly, check the following items:

Make sure the adapter is connected to the USB port. Check for any hardware problems, such as physical damage to the adapters connector.

Try the adapter in another USB port. If this also fails, try using another WN3501C wireless adapter that is known to operate correctly.

Make sure your computer is using the latest BIOS. If there are other network adapters in the computer, they may cause conflicts. Disable or remove the other adapters from the computer and test the wireless adapter separately.

Check for a defective computer or USB port by trying the adapter in another computer that is known to operate correctly. If there are still difficulties, remove the wireless adapter. Delete the file Vnetusbr.sys from:

c:\windows\system (in Windows 98/Me) c:\winnt\system32\drivers (in Windows 2000) c:\windows\system32\drivers (in Windows XP) Click Start/Settings/Control Panel. Delete the adapter from the network configuration menu. Restart the PC and reinstall the adapter. Network Connection Problems If the LED on the USB adapter is not lit, or if you cannot access network resources from the computer, check the following:

Make sure the correct software driver is installed. Try reinstalling the driver.

Make sure the computer and other network devices are receiving power.

The access point you want to connect to may not be functioning correctly. Try using another access point. If you cannot access a Windows or NetWare service on the network, check that you have enabled and configured the service correctly. If you cannot connect to a particular server, be sure that you have access rights and a valid ID and password. If you cannot access the Internet, be sure you have configured your system for TCP/IP. If your wireless station cannot communicate with a computer on the Ethernet LAN when configured for Infrastructure mode, check the following:

33

11 Mbps Wireless USB Adapter

Make sure the access point that the station is associated with is powered on.

Check that the wireless settings (i.e., WEP, SSID, Channel) match the access point or other stations to which you are attempting to connect. If you still cannot connect, change the access point and all the stations within the BSS to another radio channel. 34

Quick Installation Guide WN3501C Wireless USB Adapter Maximum Distance Table Important Notice Maximum distances posted below are actual tested distance thresholds. However, there are many variables such as barrier composition and construction, as well as local environmental interference that may impact your actual distances and cause you to experience distance thresholds far lower than those posted below. If you have any questions or comments regarding the features or performance of this product, or if you would like information regarding our full line of wireless products, visit us on the web at www.acctontech.com, or call us toll-free at xxx. Accton Technology stands behind every product sold with a 30-day satisfaction guarantee and a limited-lifetime warranty. WN3501C Wireless USB Adapter Maximum Distance Table Speed and Distance Ranges Environmental Condition 11 Mbps 5.5 Mbps 2 Mbps 1 Mbps Open Environment: A line-of-sight environment with no interference or obstruction between the Access Point and users. Semi-Open Environment:

An environment with no major obstructions such as walls or privacy cubicles between the Access Point and users. Closed Environment: A typical office or home environment with floor to ceiling obstructions between the Access Point and users. 130 m

(427 ft) 150 m

(492 ft) 165 m

(541 ft) 175 m

(574 ft) 50 m

(164 ft) 70 m

(230 ft) 90 m

(295 ft) 120 m

(394 ft) 25 m

(82 ft) 30 m

(98 ft) 33 m

(108 ft) 35 m

(115 ft) 35 11 Mbps Wireless USB Adapter Specifications Functional Criteria Data Rate: 1, 2, 5.5, 11 Mbps, Auto Transmission Mode: Half duplex Network Connection: IEEE 802.11b wireless Operating Range:

Max distance at 11 Mbps: 130 m (427 ft) Max distance at 5.5 Mbps: 150 m (492 ft) Max distance at 2 Mbps: 165 m (541 ft) Max distance at 1 Mbps: 175m (574 ft) Security:

64/128-bit WEP Encryption WEP Key: Input any text or hexadecimal (complies with Intersil) Driver: NDIS for Windows 98, Me, 2000, XP, Linux Radio Signal Signal Type: Direct Sequence Spread-Spectrum (DSSS) Operating Frequency:

USA, Canada, Europe (ETSI): 2400~2483.5 GHz Japan: 2400~2497 GHz Sensitivity: -82 dBm Modulation: 1/2/5.5/11 Mbps: BPSK/QPSK/CCK Output Power: >+15 dBm (minimum), Typical +17 dBm Physical Characteristics Temperature:

Operating: 0 to 55 C (32 to 131 F) Storage: -10 to 70 C, (14 to 158 F) Humidity: 65 to 75% non-condensing Antenna: Internal LED: Single Dual-color Indicator (power/activity) Host Interface: USB Type B connector, requires shielded USB cable, 90 ohm, 5 m (16.4 ft) max. Standards Conformance I EEE 802.11b 36 Quick Installation Guide USB specification revision 1.1 Compliances FCC Class B ETSI 300.328, 300.826 ARIB STD33, T66 EN60601 EN61000-3-2/3 EN 61000-4-2/3/4/5/6/8/11 CISPR 22 Class B Software NDIS Driver Windows 98 Windows Me Windows 2000 Windows XP NDIS Utility Windows 98 Windows Me Windows 2000 Windows XP uses built-in wireless configuration utility 37 11 Mbps Wireless USB Adapter Terminology The following is a list of terminology used in this document. Access Point An internetworking device that seamlessly connects wired and wireless networks. Ad Hoc An ad hoc wireless LAN is a group of computers each with LAN adapters, connected as an independent wireless LAN. BSS BSS stands for Basic Service Set. It is an access point and all the LAN PCs that are associated with it. CSMA/CA Carrier Sense Multiple Access with Collision Avoidance. Data Frame Packets transmitted/received by the device that carry data (see Management Frame on the next page. ESS ESS (ESS-ID, SSID) stands for Extended Service Set. More than one BSS is configured to become an Extended Service Set. LAN mobile users can roam between different BSSs in an ESS (ESS-ID, SSID). Ethernet A popular local area data communications network, which accepts transmissions from computers and terminals. Ethernet operates on a 10 Mbps baseband transmission rate, using shielded coaxial cable or twisted-pair cable. Fragmentation Threshold In the 802.11 Standard, the MAC Layer may fragment and reassemble directed MSDUs or MMPDUs. The fragmentation and defragmentation mechanisms allow for fragment re-transmission. Preamble Type Some Access Points and Client card drivers have a radio setting for Short RF Preamble. If all the Clients and Access points in your wireless network have this feature, then enabling it can boost your throughput. However, if a radio does not support this feature, then it will not be able to communicate with any other radios that have this set to Short. Infrastructure An integrated wireless and wired LAN is called an Infrastructure configuration. Management Frame Control frame for establishing a link between an access point and a client station. It includes Beacon, Probe, Authentication, and Association frames. MSDUs MAC Service Data Units. MMPDUs MAC Management Protocol Data Units. Roaming A wireless LAN mobile user moves around an ESS and maintains a continuous connection to the Infrastructure network. RTS Threshold Transmitters contending for the medium may not be aware of each 38 Quick Installation Guide other. RTS/CTS mechanism can solve this Hidden Node Problem. If the packet size is smaller than the preset RTS Threshold size, the RTS/CTS mechanism will NOT be enabled. USB The Universal Serial Bus allows complete Plug and Play connection of peripheral devices to a computer. WEP Wired Equivalent Privacy is based on the use of keys and the popular RC4 encryption algorithm. Wireless devices without a valid WEP key are excluded from network traffic. 39 11 Mbps Wireless USB Adapter Warranty Accton warrants to the original owner that the product delivered in this package will be free from defects in material and workmanship for a period of three (3) years from the date of purchase from Accton or its Authorized reseller. For the warranty to apply, you must register your purchase by returning the registration card indicating the date of purchase and including proof of purchase. There will be a minimal charge to replace consumable components, such as fuses, power transformers, and mechanical cooling devices. The warranty does not cover the product if it is damaged in the process of being installed. Accton recommends that you have the company from whom you purchased this product install it. THE ABOVE WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ANY WARRANTY ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. ACCTON SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. ACCTON NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY. 40 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. FCC Caution: To assure continued compliance, (example - use only shielded interface cables when connecting to computer or peripheral devices) 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:

Caution: FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. 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. WN3501C E032001-R01 150417-102

Accton Technology Corporation No.1 Creation Rd. III, Science based Industrial Park, Hsin Chu300, Taiwan, R.O.C. Tel:886-5770270 Fax:886-3-5783839 Inform Letter Dear Customer, According to FCCs regulation, the following Declaration of Conformity has to be made by a company located in USA. They are:

This device has been confirmed to be in compliance with the requirements of ANSI C63.4 & FCC part 15 regulations. The test result has been shown in the ADT test report with number RF910131R05. And this compliance is subject to the following two conditions:

This device may not cause harmful interference and, This device must accept any interference received, including interference that may cause undesired operation. This declaration can be a separate sheet and be sure that the following message will be also included in this declaration:

Product name, model name and trade name. Company name, and address of the one who is responsible for this declaration. Name, title, telephone and fax number as well as the signature of the contact person. Thanks for your attention.