TRENDnet TEW-424UB User manual

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Regulatory notes and statements
Wireless LAN, Health and Authorization for use
Radio frequency electromagnetic energy is emitted from Wireless LAN devices.
The energy levels of these emissions however are far less than the electromagnetic
energy emissions from wireless devices such as mobile phones. Wireless LAN
devices are safe for use frequency safety standards and recommendations. The use
of Wireless LAN devices may be restricted in some situations or environments for
example:
·On board of airplanes, or
·In an explosive environment, or
·In case the interference risk to other devices or services is perceived or identified
as harmful
In case the policy regarding the use of Wireless LAN devices in specific
organizations or environments (e.g. airports, hospitals, chemical/oil/gas industrial
plants, private buildings etc.) is not clear, please ask for authorization to use these
devices prior to operating the equipment.
Regulatory Information/disclaimers
The installation and use of this Wireless LAN device must be in strict accordance
with the instructions included in the user documentation provided with the product.
Any changes or modifications made to this device that are not expressly approved
by the manufacturer may void the user’s authority to operate the equipment. The
Manufacturer is not responsible for any radio or television interference caused by
unauthorized modification of this device. The Manufacturer and its authorized
resellers or distributors will assume no liability for any damage or violation of
government regulations arising from the failure to comply with these guidelines.
USA-FCC (Federal Communications Commission) statement
This device complies with Part 15 of FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference, including interference that may cause
undesired operation of this device.
FCC Radio Frequency Exposure statement
This Wireless LAN radio device has been evaluated under FCC Bulletin OET 65
and found compliant to the requirements as set forth in CFR 47 Sections 2.1091,
2.1093, and 15.247 (b) (4) addressing RF Exposure from radio frequency devices.
The radiated output power of this Wireless LAN device is far below the FCC radio

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frequency exposure limits. Nevertheless, this device shall be used in such a manner
that the potential for human contact during normal operation is minimized.
When nearby persons has to be kept to ensure RF exposure compliance, in order to
comply with RF exposure limits established in the ANSI C95.1 standards, the
distance between the antennas and the user should not be less than 20 cm.
FCC 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 radiates radio frequency energy. If not installed
and used in accordance with the instructions, it 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 and correct the interference by one or more of the following
measures:
1. Reorient or relocate the receiving antenna.
2. Increase the distance between the equipment and the receiver.
3. Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
Export restrictions
This product or software contains encryption code that may not be exported or
transferred from the US or Canada without an approved US Department of
Commerce export license.
Safety Information
Your device contains a low power transmitter. When the device is transmitted it
sends out radio frequency (RF) signal.
CAUTION: To maintain compliance with FCC’s RF exposure guidelines, this
equipment should be installed and operated with a minimum distance of 20 cm
between the radiator and your body. Use the supplied antenna. Unauthorized
antennas, modifications, or attachments could damage the transmitter and may
violate FCC regulations.

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The antenna(s) used for this transmitter must be installed to provide a separation
distance of at least 20 cm from all persons and must not be located or operating in
conjunction with any other antenna or transmitter.
CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause radio
interference, in which case the user may be required to take adequate measures.
Protection requirements for health and safety – Article 3.1a
Testing for electric safety according to EN 60950 has been conducted. These are
considered relevant and sufficient.
Protection requirements for electromagnetic compatibility – Article
3.1b
Testing for electromagnetic compatibility according to EN 301 489-1, EN 301 489-
17 and EN 55024 has been conducted. These are considered relevant and sufficient.
Effective use of the radio spectrum – Article 3.2
Testing for radio test suites according to EN 300 328-2 has been conducted. These
are considered relevant and sufficient.
CE in which Countries where the product may be used freely:
Germany, UK, Italy, Spain, Belgium, Netherlands, Portugal, Greece, Ireland,
Denmark, Luxembourg, Austria, Finland, Sweden, Norway and Iceland.
France: French regulations prohibit the use of all channels except channels 10
through 13.

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TABLE OF CONTENT
Introduction ................................................................................................ 1
Overview of this User’s Guide................................................................. 1
Unpacking and Setup.................................................................................. 2
Unpacking ................................................................................................ 2
Setup......................................................................................................... 2
Connecting the USB Extension Cable...................................................... 2
IDentifying external components ............................................................... 3
LED .......................................................................................................... 3
Software Installation................................................................................... 4
Windows 98SE/ME/2000/XP Utility Installation .................................... 4
Wireless Utility Setting .......................................................................... 10
Technical Specifications........................................................................... 16

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INTRODUCTION
Congratulations on your purchase of this Wireless LAN USB 2.0 Adapter.
This manual contains detailed instructions regarding the operation of this product.
Please keep this manual for future reference.
With the Wireless LAN USB 2.0 Adapter, a desktop or laptop computer can
communicate with another computer wirelessly. An easy-to-use utility is bundled
with the Wireless USB Adapter for configuration, monitoring, and diagnostic
purposes.
The Wireless LAN USB 2.0 Adapter can wirelessly transmit and receive data, at a
speed of up to 54 megabits per second.
The Wireless LAN USB 2.0 Adapter provides users with access to real-time
information anywhere in their organization. The mobility of the Wireless LAN
USB 2.0 Adapter provides productivity and service, which are not available under
wired networks. The Wireless LAN USB 2.0 Adapter can easily adapt from peer-
to-peer networks, suitable for a small number of users, to full infrastructure
networks of thousands of users that allow roaming around a broad area.
Overview of this User’s Guide
Introduction. Describes the Wireless LAN USB 2.0 Adapter and its features.
Unpacking and Setup. Helps you get started with the basic installation of the
Wireless LAN USB 2.0 Adapter.
Hardware Installation. Describes the LED indicator on the Adapter.
Software Installation. Describes how to setup the driver and the utility setting.
Technical Specifications. Lists the technical (general, physical and environmental)
specifications of the Wireless LAN USB 2.0 Adapter.

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UNPACKING AND SETUP
This section provides unpacking and setup information for the Wireless LAN USB
2.0 Adapter.
Unpacking
The box should contain the following items:
One Wireless LAN USB 2.0 Adapter
One Driver & Utility CD-ROM
One Quick Installation Guide
One Type-A USB male to female extension cable
If any item is found missing or damaged, please contact your local reseller for
replacement.
Setup
Before installation, check the following:
Make sure your computer is running at least a 300Mhz or above processor with
256MB RAM or above
Make sure the USB ports are USB 1.0, 1.1 or 2.0
The operating system on your computer must be the following: Windows
XP/2000/ME/98SE
Make sure the environment has minimal interference and obstructions.
Connecting the USB Extension Cable
The USB extension cable that comes with the Adapter has Type A connectors on
both ends. One end of the cable is a male Type A connector that plugs into the PC’s
USB port. The other end of the cable is a female Type A connector that plugs into
the Adapter.
This USB extension cable can be adjusted to improve the wireless connection. It is
recommended that the Wireless LAN USB 2.0 Adapter is perpendicular to the
ground.

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IDENTIFYING EXTERNAL COMPONENTS
LED
The LED blinks green when the Wireless LAN USB 2.0 Adapter is successfully
connected to a wireless network. The LED is steady green when the Wireless USB
Adapter is not connected to a wireless network.

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SOFTWARE INSTALLATION
This section describes how to install the driver and utility for the Wireless LAN
USB 2.0 Adapter.
Windows 98SE/ME/2000/XP Utility Installation
1) Insert the Utility and Driver CD-ROM into your computer’s CD-ROM Drive and
then click Install Utility.
2) Follow the InstallShield Wizard Instructions
3) Click Yes (Windows 2000) or Continue Anyways (Windows XP)

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4) Click Finish.
5) Plug the Wireless LAN USB 2.0 Adapter into an available USB slot on your
computer
Windows XP
6) Select No, not this time and then click Next.

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7) Click Install the software automatically (Recommended), and then
click Next.
8) Click Continue Anyways.
9) Select the appropriate country domain and then click ok.
Warning: Selecting the incorrect country domain may result in violation of
applicable law.

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10) Click Yes.
11) Click Finish.
Windows 2000
12) The drivers will install automatically.
13) Click Yes.

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14) Select the appropriate country domain and then click ok.
Warning: Selecting the incorrect country domain may result in violation of
applicable law.
15) Click Yes.
Windows 98SE/ME
16) The drivers will install automatically.
17) Select Yes, I want to restart my computer now and click OK.
18) Select the appropriate country domain and then click ok.

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Warning: Selecting the incorrect country domain may result in violation of
applicable law.
19) Click Yes.

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Wireless Utility Setting
The user can configure the wireless settings using the Wireless Adapter
Configuration Utility. Double-click the utility icon that appears in the taskbar.
The Wireless Adapter Configuration Utility is divided into five sections: Link Info,
Configuration, Advanced, Site Survey and About.
I. Link Information
This is the default screen after launching the Utility program.
Status: Shows the associated BSSID, which can be used to identify the wireless
access point.
SSID: Shows the current SSID, which must be the same on the wireless client and
AP in order for communication to be established.
Frequency: Shows the current frequency used for the wireless network.
Wireless Mode: Shows the current wireless mode used for wireless communication.
Encryption: Shows the current encryption mode used on the wireless network.
TxRate: Shows the current data rate used for transmitting.
Channel: Shows the current channel for communication.
Link Quality: Shows the link quality of the Wireless LAN USB 2.0 Adapter with
the Access Point when operating under Infrastructure mode.

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Signal Strength: Shows the wireless signal strength of the connection between the
Wireless LAN USB 2.0 Adapter with the Access Point.
Data Rate: Shows the statistics of data transfer, and the calculation is based on the
number of packets transmitted and received.
II. Configuration
This screen is where you set the basic wireless settings for the Wireless LAN USB
2.0 Adapter
SSID: Service Set Identifier, which is a unique name shared among all clients in a
wireless network. The SSID must be identical for each client in the wireless
network.
Wireless Mode: There are two modes available for selection
●Infrastructure – to establish wireless communication with the LAN and other
wireless clients through the use of Access Points.
●Ad-Hoc – to establish point-to-point wireless communication directly with other
wireless client devices.
AdHoc Band: There are two bands available for selection- 11B and 11G
Channel: The channel the AP operates on. Users can select the channel range of 1
to 11 for North America (FCC) domain and 1 to 13 for European (ETSI) and Japan
(MKK) domains.
Power Mode: There are 3 modes to choose from.
●Continuous Access Mode (default) – the Wireless LAN USB 2.0 Adapter is
constantly operating with full power. This mode consumes the most power.

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●Maximum Power Save – the Wireless LAN USB 2.0 Adapter consumes the least
power. This mode only operates when there is wireless network activity.
●Power Save – the Wireless LAN USB 2.0 Adapter consumes moderate level of
power.
Preamble: Select Long or Short & Long Preamble type. Preamble is a sequence of
bits transmitted at 1Mbps that allows the PHY circuitry to reach steady-state
demodulation and synchronization of bit clock and frame start. Two different
preambles and headers are defined: the mandatory supported Long Preamble and
header, which interoperates with the 1Mbps and 2Mbps DSSS specification (as
described in IEEE 802.11), and an optional Short Preamble and header (as
described in IEEE 802.11b). At the receiver, the Preamble and header are processed
to aid in demodulation and delivery of the PSDU. The Short Preamble and header
may be used to minimize overhead and, thus, maximize the network data
throughput. However, the Short Preamble is supported only for the IEEE 802.11b
(High- Rate) standard and not for the original IEEE 802.11 standard. That means
that stations using Short-Preamble cannot communicate with stations implementing
the original version of the protocol. Click “Apply” to save the changes.
Support Band: There are 2 modes the user can select; 11B and 11G. By default,
11B and 11G are enabled.
III. Advanced
This screen is where you configure the Security settings for the Wireless LAN USB
2.0 Adapter.
Encryption: The following options are available: Open System, Shared Key,

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Auto, WPA/WPA2 and WPA-PSK/WPA2-PSK. Select Open System, Shared
Key or Auto for WEP data encryption feature.
Open System and Shared Key requires the user to set a WEP key to exchange data
with other wireless clients that have the same WEP key. Auto automatically selects
the proper authentication mode.
The following will only be activated when Open, Shared Key or Auto is enabled:
Network Key: choose the encryption way, either in HEX or ASCII formats,
and enter the password in the blank space.
Key Length: select 64 or 128 bits as the length of the keys
Default Key: select one of the 4 keys to use.
Key Format: ASCII or HEX
If WPA/WPA2 is selected, configuration is enabled. Please click the
“configuration” button. The following window appears. Select the desired
Certification, select the desired Certification Authority and then enter the
Server/Domain name and Login Name
If WPA-PSK/WPA2-PSK is selected, click the “configuration” button. The
below window appears. Please enter a WPA Passphrase.

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IV. Site Survey
This screen allows the user to scan for available wireless networks (wireless clients
and Access Points). It also allows the user to establish wireless communications
with an available wireless network.
Available Network – displays the wireless networks (wireless clients and access
points) that are within range.
Select any one of the wireless networks by double-clicking on it or clicking on the
“Connect” button.
Click the “Refresh” button to scan for available networks.
Profile – The user can create and manage the created profiles for home, work or
public areas. By double-clicking on one of the created profile, the setting will adjust
to the specific setting such as SSID, channel, and WEP as saved by that particular
profile.
Remove: Deletes the selected profile
Properties: To view and change the settings of the profile.

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Add: Adds a profile. The following screen will appear. The user can enter the
necessary information required for accessing Access Points or Wireless Router.
V. About
This screen displays information about the Wireless LAN USB 2.0 Adapter, such as
the Driver and Utility version. When a new version of the utility becomes available
for upgrade, users will be able to identify by version numbers.