Tenda W541U User Manual

W541U Wireless USB Adapter User Guide

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W541U Wireless USB Adapter User Guide

Copyright Statement

is the registered trademark of
Shenzhen Tenda Technology Co., Ltd. All the products
and product names mentioned herein are the
trademarks or registered trademarks of their
respective holders. Copyright of the whole product as
integration, including its accessories and software,
belongs to Shenzhen Tenda Technology Co., Ltd.
Without the permission of Shenzhen T enda T echnology
Co., Ltd, any individual or party is not allowed to copy ,
plagiarize, imit ate or tra nslate it into o ther la nguag es.

All the photos and product specifica tions mentione d in
this guide are for references only. As the upgrade of
software and hardware, there will be changes. And if
there are changes, Tenda is not responsible for
informing in adv ance. If y ou want to kn ow more abou t
our product information, please visit our website at

www.tenda.cn

.

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W541U Wireless USB Adapter User Guide

Table of Content

Chapter 1 Introduction....................................3

1.1 Product Feature .......................................4

1.2 Product Deployment .................................5

1.3 Indicator Description ................................6

1.4 Package Contents.....................................6

Chapter 2 Installation Guide

Chapter 3 Client Utility Interface......................12

3.1 Station Mode...........................................13

3.1.1 Station Mode Topology........................13

3.1.2 Status..............................................14

3.1.3 Site Survey.......................................15

3.1.4 Profile Management............................ 16

3.1.5 Statistics ..........................................18

3.1.6 WPS Setting......................................19

3.2 .................................................21 AP Mode

3.2.1 ..............................21 AP Mode Topology

3.2.2 Basic Setting.....................................22

3.2.2 .................................23 Security Setting

3.2.3 Access Control...................................24

3.2.5 About...............................................26

Appendix One: Acronyms and Terms

Appendix Two: Product Specification.................29

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W541U Wireless USB Adapter User Guide

Chapter 1 Introduction

W541U Wireless USB Adapter complies with IEEE

802.11g and IEEE 802.11b standards, providing up to
54Mbps wireless tr ansmission rate which is 5 times the
common 802.11b products. It supports 64/128-bit
WEP, WPA/WP A-PSK, WPA2/WP A2-PSK encryption and

802.1x security authentication standard to protect
your network security. Besides, built-in omni­directional smart antenna frees you from wired cables,
which allow you to share the Internet access anywhere,
files and fun, easily and securely.

In addition, W541U supports Soft AP, PSP, WII and
NDS for Internet and XLink Kai connections. PBC and
PIN code (two WPS encryption methods) can free you
from remembering the long passwords. Moreover,
complete WMM support makes your voice and video
more smooth.

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W541U Wireless USB Adapter User Guide

1.1 Product Feature

 Supports IEEE 802.11g and IEEE 802.11b

standards

 Provides two work modes: Ad Hoc Mode and

Infrastructure Mode

 Provides up to 54Mbps transmission rate and

up to 300 meters transmission distance

 Auto-detects the wireless network and

changes the wireless transmission rate

 Supports Soft AP, PSP, Wii and NDS for

Internet and XLink Kai connections

 PBC and PIN code (two WPS encryption

methods) free you from remembering the long
passwords

 Provides easy configuration utility and monitor

program

 Supports Wireless Roaming function
 WMM support to smooth your voice and video
 Easy-to-use, plug and play

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W541U Wireless USB Adapter User Guide

1.2 Product Deployment

 54Mbps wireless USB Adapter offers fast,

reliable and cost- effective solution for
wireless access. Deployment as follows;

 For staff who requires higher mobility in the

office, they want to have access to traditional
wired or wireless network in any place of the
company;

 Enterprise or individual who requires often

changes in lay out of network cables;

 Companies or places which are not suitable for

LAN cable laying out because of budget or
objective building, including places of great
interests, rent places or places for short-term
usage;

 Company or individual who avoids using

expensive cables, renting cables or renting
rights for access.

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1.3 Indicator Description

In the front panel of W541U, there is a LED indicator
blinking when data communication is going on.

1.4 Package Contents

Unpack the packets, and please find the following
items:

 One 54M Wireless USB Adapter
 One CD-ROM

W541U Wireless USB Adapter User Guide

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W541U Wireless USB Adapter User Guide

Chapter 2 Installation Guide

This chapter is to assist you how to use included the
CD-ROM which comprises the Setup Wizard and the
Client Utility Interface.

The following steps on Setup Wizard are taken the
Windows XP as example.

1. Please insert the Wireless USB Adapter into the

USB port of your computer.

2.

“Found New Hardware” system dialogue appears,

and selects “Cancel” to use the included Setup
Wizard for fast installation; of course, you also can
select “Next” to install by manual.

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W541U Wireless USB Adapter User Guide

3. Inert the included CD-ROM into the CD-ROM
drive of your computer, and the Welcome screen
appears. (If not appear, double click the
“Setup.exe” icon.)

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W541U Wireless USB Adapter User Guide

4. Click “Enter”.

5. Click “Next” to start installing.

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W541U Wireless USB Adapter User Guide

6. Click “Change…” to select the directory path, or
click “Next”.

7. Select “OK” and “Next” in the following window.

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W541U Wireless USB Adapter User Guide

8. During the installation, the following dialogue

maybe appears. Click the “Continue Anyway” to
continue. There is no security threat to your
computer.

9. Click “Finish” to complete the installation.

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W541U Wireless USB Adapter User Guide

Chapter 3 Client Utility Interface

This software is for the W541U Wireless USB Adapter
management. If it does not appear , select “Start”—“ All
Programs” —“TENDA”—“W541U”, or click the shortcut
on your PC’s desktop.

Note:

In the Windows XP, you can select the included
W541U Client Utility Interface or the Windows XP
internal wireless application to configure the
device.

There are two client utility applications in W541U:
Station Mode and AP Mode.

Note:

In this utility interfac e, Station M ode (Clie nt Mode)
is the default access way.

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W541U Wireless USB Adapter User Guide

3.1 Station Mode

3.1.1 Station Mode Topology

In this mode, W541U serves as a client to receive
the wireless signals to access the Internet.

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3.1.2 Status

W541U Wireless USB Adapter User Guide

In the Network Status window, it displays something
on wireless adapter and wireless network status,
including SSID, Authentication type, Encryption Type,
IP address, subnet mask and gateway and so on.

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3.1.3 Site Survey

The Site Survey is used to scan the available wireless
network around, showing the wireless network’s signal
strength and other information which provides basis
for you to access which wireless network.

W541U Wireless USB Adapter User Guide

Connect: select one entry in the wireless network
list and click the button to connect the device with
the selected network.
Refresh: rescan the wireless network around.

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3.1.4 Profile Management

This window saves the general wireless parameters for
different profiles, which is used to fast connect the
wireless network you need.

UP/DOWN: To change the profile’s sequence in
the list.

Connect: To activate one profile.
New: To create a new profile and configure the

site status and security setting.

Modify: To modify one existing profile.
Delete: To delete one existing profile.

W541U Wireless USB Adapter User Guide

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W541U Wireless USB Adapter User Guide

(Site Status)

(Security Setting)

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W541U Wireless USB Adapter User Guide

3.1.5 Statistics

Statistics is used to summarize Rx and Tx data packets,
including the success and error packet amount.

Clear: click this button to renew the statistics.

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W541U Wireless USB Adapter User Guide

3.1.6 WPS Setting

WPS setting is enabled only on WPS-compliant
devices.

PIN： Enter the Pin code and click the “PIN” to
automatically connect the wireless adapter with
wireless devices around.
PBC： Click the “PBC” to complete auto-check and
connections between wireless adapter and other
wireless device.

Refresh: to update the Pin code.
Rescan: to rescan the WPS-compliant wireless

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W541U Wireless USB Adapter User Guide

network around.
Connect: click thi

s button to connect the WPS
wireless network.
Disconnect: to disconnect the connected wireless
network.

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W541U Wireless USB Adapter User Guide

3.2 AP Mode

3.2.1 AP Mode Topology

The device also can serve as an access point to
transmit wireless signals and create wireless network,
allowing other wireless clients to access the network.

Click the AP Mode icon to enter the AP Mode interface.

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W541U Wireless USB Adapter User Guide

3.2.2 Basic Setting

This window is used to configure the AP’s basic para­meters, including SSID, Wireless Mode and Channel.

SSID: Wireless network’s ID name scanned by
wireless adapter.
Wireless Mode: 802.11b/802.11g/802.11b/g
mixed

Channel: 1~11 channels provided.
Restore Default: to restore the set parameters to

default factory default settings.
Apply: to make the changes made take effect.

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W541U Wireless USB Adapter User Guide

3.2.2 Security Setting

This window is used to configure the wireless
network’s security authentication, providing WEP,
WPA-PSK, WPA2-PSK, and WPA-PSK/WPA2-PSK
encryption methods.

WEP：10/26 bits Hex or 5/13 ASCII support.
WPA-PSK：8~23 bits ASCII support.
WPA2-PSK：8~23 bits ASCII support.
WPA-PSK/WPA2-PSK：8~23 bits ASCII support.

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W541U Wireless USB Adapter User Guide

Note:

1. The Hex characters include 0~9 numbers and

a~f letters.

2. ASCII characters include any numbers and

letters.

3.2.3 Access Control

Access Control is based on the MAC address to decide
that the specified client connects to the wireless
network, or disables it to access the wireless network.

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W541U Wireless USB Adapter User Guide

Filter Policy:

Di

sabled: to disable the filter function.

All Permitted: to permit all cl ients in th e list to

access the wireless network.
All Blocked: to refuse all clients in the list to

access the wireless network.
MAC Address：to input the client’s MAC address to
implement the corresponding filter policy.

Add: to add the entered MAC address into the list.
Delete: to delete one existing MAC address in the

list.
Remove All: to delete all clients’ MAC address in
the list.
Apply: to make the changes made take effect.

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W541U Wireless USB Adapter User Guide

3.2.5 About

This window displays something about software
version and wireless adapter.

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W541U Wireless USB Adapter User Guide

Appendix One: Acronyms and Terms

WLAN Wireless Local Area Network

802.11 A family of specifications developed by

the IEEE for WLAN technology.

802.11a An extension to 802.11 WLAN standard
that provides up to 54 Mbps transmis­sion in the 5 GHz UNI radio band.

802.11b An extension to 802.11 WLAN standard
that provides up to 11 Mbps
transmission in the 2.4 GHz ISM radio
band. 802.11b uses DSSS modulation.

802.11g An extension to 802.11 WLAN standard
that provides up to 54 Mbps
transmission in the 2.4 GHz ISM radio
band. 802.11b uses OFDM modulation
and is backwards compatible with

802.11b.

Ad-Hoc A group of computers each with wireless

adapters, connected as an independent
WLAN.

AES Advanced Encryption Standard

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W541U Wireless USB Adapter User Guide

BSSID

Basic Service Set ID

DHCP Dynamic Host Configuration Protocol
DSSS Direct Sequence Spread Spectrum.

DSSS is one of two types of spread
spectrum radio. The other is
frequency-hopping spread spectrum
(FHSS).

QoS Quality of Service
OFDM Orthogonal Frequency Division

Multiplexing

RADIUS Remote Authentication Dial In User

Service

RTS Request to Send
SSID Service Set Identifier. A 32-character

unique identifier attached to the header
of packets sent over a WLAN that acts as
a password when a mobile device tries
to connect to the BSS.

TCP/IP Transmission Control Protocol/Internet

Protocol

TKIP Temporal Key Integrity Protocol
WDS Wireless Distribution System

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W541U Wireless USB Adapter User Guide

WEP Wi

WLANs defined in the IEEE 802.11

WPA Wi-Fi Protected Access
WPA2 Wi-Fi Protected Access 2. The next

Wi-Fi security, based on the 802.11i

WPA2-PSK Wi-Fi Protected Access 2-Pre-shared

WPA-PSK Wi-Fi Protected Access-Pre-shared Keys

red Equivalent Privacy. A security

protocol for

standard.

generation of

standard.

Keys

Appendix Two: Product Specification

Standard

IEEE802.11g, IEEE802.11b,
IEEE802.11e (QoS)

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W541U Wireless USB Adapter User Guide

Port USB1.1,USB2.0
Frequency Range 2.4～2.4835GHz

54 Mbps, 48 Mbps, 36 Mbps,

Transmission Rate

24 Mbps, 18 Mbps, 12 Mbps,
9 Mbps, 6 Mbps; 11 Mbps,

5.5 Mbps, 2 Mbps, 1 Mbps

Antenna Gain 2dBi

Transmission
Power

Max. 20dbm

Modulation Method
Working

Temperature
Storage
Temperature

Working Humidity 10％～90％RH non-condensing

OFDM, CCK

0℃～55℃

-20℃～65℃

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