Accton Technology WN3501CACC Wireless USB Adapter User Manual 00
Accton Technology Corp Wireless USB Adapter 00
Contents
- 1. Statement for DoC
- 2. Revised Users Manual
Revised Users Manual
Wireless USB Adapter
WN3501C
Quick Installation Guide
Quick Installation Guide
Wireless USB Adapter
11 Mbps Wireless Network Adapter
Accton is a trademark of Accton Technology Corporation. Other trademarks or brand names mentioned
herein are trademarks or registered trademarks of their respective companies.
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
Europe Headquarters
Edificio Conata II,
Calle Fructuós Gelabert 6-8, 2o, 4a,
08970 - Sant Joan Despí,
Barcelona, Spain.
Phone: +34-93-477-4920
Fax: +34-93-477-3774
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
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
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.
WN3501C
E032002R01
150417-102
v
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
Note:
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 user’s
authority to operate this equipment.
Attach unshielded twisted-pair cable (UTP) to the RJ-45 port and shielded USB
cable to the USB port.
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 numérique respecte les limites de bruits radioélectriques applicables aux appareils
numériques de Classe B prescrites dans la norme sur le matérial brouilleur: “Appareils
Numériques,” NMB-003 édictée par l’Industrie.
C
OMPLIANCES
vi
EC Conformance Declaration - Class B
SMC contact for these products in Europe is:
SMC Networks Europe,
Edificio Conata II,
Calle Fructuós Gelabert 6-8, 2o, 4a,
08970 - Sant Joan Despí,
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
• Limitation of voltage fluctuation and flicker in low-voltage supply
system according to EN 61000-3-3/1995
Immunity:
• 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)
vii
Contents
WN3501C Wireless USB Adapter 1
Introduction 1
System Requirements 1
Package Checklist 1
Applications 2
Hardware Description 3
LED Indicator 3
Multi-choice Mounting Clip 3
Hardware Installation 4
Attaching the Clip (Optional) 4
Attaching the Magnets (Optional) 4
Attaching the Velcro (Optional) 4
Attaching the USB Cable 4
Driver Installation 5
Windows 98/Me Driver Installation 5
Setting Wireless Properties 7
Windows 2000 Driver Installation 16
Windows XP Driver Installation 19
Configuration and Diagnostics 22
Installing the Utility in Windows 98, Me, and 2000 22
Using the Wireless LAN Utility in Windows 98, Me, and 2000 22
Monitor 23
Statistics 24
Site Survey 25
Encryption 25
Advanced 27
Version 27
Using the Windows XP Configuration Tool 27
Basic Settings 27
Advanced Settings 29
Network Configuration and Planning 30
Network Topologies 30
Ad Hoc Wireless LAN 30
Infrastructure Wireless LAN 31
Setting the Communication Domain 31
Troubleshooting 33
USB Adapter Installation Problems 33
Quick Installation Guide
1
WN3501C Wireless USB Adapter
Introduction
Accton’s 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.
11 Mbps Wireless USB Adapter
2
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
Quick Installation Guide
3
Hardware Description
Accton’s 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.
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.
Status Description
On Power is being supplied to the adapter.
Flashing Adapter is receiving or transmitting data via a
wireless connection.
11 Mbps Wireless USB Adapter
4
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 cable’s 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.
Quick Installation Guide
5
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 Accton’s 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.
11 Mbps Wireless USB Adapter
6
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.
Quick Installation Guide
7
Setting Wireless Properties
1. Click Start/Settings/Control Panel. Double-click the Network icon.
2. On the Configuration tab, double-click the WN3501C adapter.
11 Mbps Wireless USB Adapter
8
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
Quick Installation Guide
9
point, the adapter will automatically set the channel to the same as that used by
the access point..
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:
11 Mbps Wireless USB Adapter
10
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.”
Quick Installation Guide
11
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 Mbps Wireless USB Adapter
12
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.
Quick Installation Guide
13
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 Accton’s Wireless USB adapter is based on the
RC4 encryption algorithm. The security keys are four 10 digit keys for the 64-bit WEP
11 Mbps Wireless USB Adapter
14
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.
Quick Installation Guide
15
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.
11 Mbps Wireless USB Adapter
16
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
Quick Installation Guide
17
install the driver. Click Next to find the driver.
2. Insert the floppy disk labeled “Driver” diskette, check “Floppy disk drives,” and
click Next.
11 Mbps Wireless USB Adapter
18
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.
Quick Installation Guide
19
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 “Don’t 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.
11 Mbps Wireless USB Adapter
20
3. Type A:\xp and click OK
4. Windows XP will find the WN3501C Wireless USB Adapter. Click Next.
Quick Installation Guide
21
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.
6. After the software has been installed, click Finish to complete the driver
installation.
11 Mbps Wireless USB Adapter
22
Configuration and Diagnostics
For Windows 98, Me, and 2000, Accton’s 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 PC’s 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
Quick Installation Guide
23
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
11 Mbps Wireless USB Adapter
24
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).
Quick Installation Guide
25
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.
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 Accton’s Wireless USB adapter is based on the
RC4 encryption algorithm. The security keys are four 10 digit keys for the 64-bit WEP
AcctonAP
AcctonAP
AcctonAP
AcctonAP
11 Mbps Wireless USB Adapter
26
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.
Quick Installation Guide
27
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.
11 Mbps Wireless USB Adapter
28
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.
4. 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.
Quick Installation Guide
29
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. “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).
4. “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).”
11 Mbps Wireless USB Adapter
30
Network Configuration and Planning
Accton’s 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.
An ad hoc wireless LAN can be used for a
small branch office or SOHO operation.
Ad-hoc Wireless LAN
Notebook with
Wireless USB Adapter
Notebook with
Wireless PC Card
PC with Wireless
PCI Ada
p
ter
Quick Installation Guide
31
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.
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
File
Server
Desktop PC
PC with Wireless
PC I Adapter
Switch
Access Point
Wired LAN Extension
to Wireless Adapters
Notebook with Wireless
USB Adapter
11 Mbps Wireless USB Adapter
32
and EZ Connect Wireless Access Points within a specific ESS must be configured
with the same SSID.
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.)
File
Server
Switch
Desktop PC
Access Point <BSS2>
Notebook with Wireless
PC Card Adapter
Seamless Roaming
<ESS>
Switch
Access Point
<BSS1>
PC with Wireless
PC I Adapter
Notebook with
Wireless USB Adapter
Quick Installation Guide
33
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 adapter’s 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:
11 Mbps Wireless USB Adapter
34
•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.
Quick Installation Guide
35
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.
130 m
(427 ft)
150 m
(492 ft)
165 m
(541 ft)
175 m
(574 ft)
Semi-Open Environment:
An environment with no
major obstructions such as
walls or privacy cubicles
between the Access Point
and users.
50 m
(164 ft)
70 m
(230 ft)
90 m
(295 ft)
120 m
(394 ft)
Closed Environment: A
typical office or home
environment with floor to
ceiling obstructions
between the Access Point
and users.
25 m
(82 ft)
30 m
(98 ft)
33 m
(108 ft)
35 m
(115 ft)
11 Mbps Wireless USB Adapter
36
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
Quick Installation Guide
37
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
11 Mbps Wireless USB Adapter
38
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
Quick Installation Guide
39
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.
11 Mbps Wireless USB Adapter
40
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.
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.
This device is not designed for body worn application.
The MPE requirement specified in FCC rule part 1.1310 has been fulfilled.
WN3501C
E032001-R01
150417-102