Wistron NeWeb 03T8726 802.11 a/b/g/n 2x2 USB Dongle User Manual Project C Preliminary Proposa

Wistron NeWeb Corporation 802.11 a/b/g/n 2x2 USB Dongle Project C Preliminary Proposa

Users Manual

Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
1
User Manual
lenovo / 03T8726
(Ralink RT5572
2x2 11agn USB Dongle)
Revision: 1
Issue Date: 2011/12/20
This document and the information contained herein is the property of Wistron NeWeb
Corporation and reproduction by any means (including, but not limited to, xerographic,
chemical, electronic) and distribution is expressly prohibited without prior written consent from
Wistron NeWeb Corporation. The document and information contained herein are confidential
and may not be divulged without express written consent from Wistron NeWeb Corporation,
located at 20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Copyright 2010 by Wistron NeWeb Corporation / All rights reserved.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
2
Revision History
Edition #
Reason for revision
Issue date
Author
1.0
Initial Draft Document
2011/12/20
Louis Wu
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
3
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: 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:
Radiation Exposure Statement:
The product comply with the US portable RF exposure limit set forth for an uncontrolled
environment and are safe for intended operation as described in this manual. The further RF
exposure reduction can be achieved if the product can be kept as far as possible from the
user body or set the device to lower output power if such function is available.
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
Country Code selection feature to be disabled for products marketed to the US/CANADA
SAR compliance has been established in typical laptop computer(s) with USB slot, and
product could be used in typical laptop computer with USB slot. Other application like
handheld PC or similar device has not been verified and may not compliance with related RF
exposure rule and such use shall be prohibited.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
4
The USB dongle transmitter is approved for use in typical laptop computers. To comply with
FCC RF exposure requirements, it should not be used in other devices or certain laptop and
tablet computer configurations where the USB connectors on the host computer are unable to
provide or ensure the necessary operating configurations intended for the device and its
users or bystanders to satisfy RF exposure compliance requirements.
Operations in the 5.15-5.25GHz band are restricted to indoor usage only.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
5
Industry Canada statement:
This device complies with Industry Canada license-exempt RSS standard(s). 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 the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils
radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
Caution:
(i) the device for operation in the band 5150-5250 MHz is only for indoor use to reduce the
potential for harmful interference to co-channel mobile satellite systems;
(ii) the maximum antenna gain permitted for devices in the bands 5250-5350 MHz and 5470-
5725 MHz shall comply with the e.i.r.p. limit; and
(iii) the maximum antenna gain permitted for devices in the band 5725-5825 MHz shall
comply with the e.i.r.p. limits specified for point-to-point and non point-to-point operation as
appropriate.
(iv) Users should also be advised that high-power radars are allocated as primary users (i.e.
priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars could
cause interference and/or damage to LE-LAN devices.
Avertissement:
(i) les dispositifs fonctionnant dans la bande 5 150-5 250 MHz sont réservés uniquement pour
 brouillage préjudiciable aux systèmes
de satellites mobiles utilisant les mêmes canaux;
-5 350 MHz
et 5 470-5 725 MHz doit se conformer à la limite de p.i.r.e.;
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
6
(iii) le -5 825 MHz)

point, selon le cas.
(iv) De plus, les utilisateurs devraient aussi être avisés que les utilisateurs de radars de haute
puissance sont désignés utilisateurs principaux (c.-à-
5 250-5 350 MHz et 5 650-5 850 MHz et que ces radars pourraient causer du brouillage et/ou
des dommages aux dispositifs LAN-EL.
Radiation Exposure Statement:
The product comply with the Canada portable RF exposure limit set forth for an uncontrolled
environment and are safe for intended operation as described in this manual. The further RF
exposure reduction can be achieved if the product can be kept as far as possible from the
user body or set the device to lower output power if such function is available.
Déclaration d'exposition aux radiations:
Le produit est conforme aux limites d'exposition pour les appareils portables RF pour les
Etats-Unis et le Canada établies pour un environnement non contrôlé. Le produit est sûr pour
un fonctionnement tel que décrit dans ce manuel. La réduction aux expositions RF peut être
augmentée si l'appareil peut être conservé aussi loin que possible du corps de l'utilisateur ou
que le dispositif est réglé sur la puissance de sortie la plus faible si une telle fonction est
disponible.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
7
Europe – EU Declaration of Conformity
This device complies with the essential requirements of the R&TTE Directive 1999/5/EC. The
following test methods have been applied in order to prove presumption of conformity with the
essential requirements of the R&TTE Directive 1999/5/EC:
- IEC 60950-1:2005 (Second Edition) + Am 1:2009
Safety of Information Technology Equipment
- EN 62311: 2008 / Article 3(1)(a) and Article 2 2006/95/EC)
Assessment of electronic and electrical equipment related to human exposure restrictions for
electromagnetic fields (0 Hz-300 GHz)
- EN 62209-1: 2006
Human exposure to radio frequency fields from hand-held and body-mounted wireless
communication devices Human models, instrumentation, and procedures -
Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used
in close 13 proximity to the ear (frequency range of 300 MHz to 3 GHz)
- EN 300 328 V1.8.1: 2012-06
Electromagnetic compatibility and Radio spectrum Matters (ERM); Wideband transmission
systems; Data transmission equipment operating using wide band modulation techniques;
Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive
- EN 301 893 V1.7.1: 2012-06
Broadband Radio Access Networks (BRAN); 5 GHz high performance RLAN; Harmonized EN
covering the essential requirements of article 3.2 of the R&TTE Directive
- EN 301 489-1 V1.9.2: 2011
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical
requirements
- -
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
Compatibility (EMC) standard for radio equipment; Part 17: Specific conditions for Broadband
Data Transmission Systems
This product complies with EU requirements regarding restriction of exposure of persons to
radio-frequency energy (RF) emitted by telecommunication and radio devices as it is
designed and manufactured in such a way as not to exceed the exposure limits indicated by
the European Union Commission. The permitted SAR limit for the general population is 2.0
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
8
W/Kg. This limit guarantees an ample safety margin that protects all persons regardless of
age and health condition.
The highest SAR level recorded for this model was equal to 0.821W/kg.
The minimum distance between the user and/or any bystander and the radiating structure of
the transmitter is 20cm.
In Italy the end-user should apply for a license at the national spectrum authorities in order to
obtain authorization to use the device for setting up outdoor radio links and/or for supplying
public access to telecommunications and/or network services.

[Czech]
[Jméno výrobce] [typ zařízení] 

Dansk
[Danish]
Undertegnede [fabrikantens navn] erklærer herved, at følgende udstyr [udstyrets
typebetegnelse] overholder de væsentlige krav og øvrige relevante krav i direktiv
1999/5/EF.
Deutsch
[German]
Hiermit erklärt [Name des Herstellers], dass sich das Gerät [Gerätetyp] in
Übereinstimmung mit den grundlegenden Anforderungen und den übrigen
einschlägigen Bestimmungen der Richtlinie 1999/5/EG befindet.
Eesti
[Estonian]
Käesolevaga kinnitab [tootja nimi = name of manufacturer] seadme [seadme tüüp =
type of equipment] vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist
tulenevatele teistele asjakohastele sätetele.
English
Hereby, [name of manufacturer], declares that this [type of equipment] is in compliance
with the essential requirements and other relevant provisions of Directive 1999/5/EC.
Español
[Spanish]
Por medio de la presente [nombre del fabricante] declara que el [clase de equipo]
cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o
exigibles de la Directiva 1999/5/CE.

[Greek]
 [name of manufacturer]  [type of equipment]


Français
[French]
Par la présente [nom du fabricant] déclare que l'appareil [type d'appareil] est conforme
aux exigences essentielles et aux autres dispositions pertinentes de la directive
1999/5/CE.
Italiano
[Italian]
Con la presente [nome del costruttore] dichiara che questo [tipo di apparecchio] è
conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva
1999/5/CE.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
9
Latviski
[Latvian]
[name of manufacturer / izgatavotāja nosaukums] [type of equipment
/ iekārtas tips] 


[Lithuanian]
[manufacturer name] s [equipment type] atitinka esminius
reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.
Nederlands
[Dutch]
Hierbij verklaart [naam van de fabrikant] dat het toestel [type van toestel] in
overeenstemming is met de essentiële eisen en de andere relevante bepalingen van
richtlijn 1999/5/EG.
Malti
[Maltese]
Hawnhekk, [isem tal-manifattur], jiddikjara li dan [il-mudel tal-prodott] jikkonforma mal-
-Dirrettiva 1999/5/EC.
Magyar
[Hungarian]
Alulírott, [gyártó neve] nyilatkozom, hogy a [... típus] megfelel a vonatkozó alapvetõ
követelményeknek és az 1999/5/EC irányelv egyéb elõírásainak.
Polski
[Polish]
Niniejszym [nazwa producenta] [nazwa wyrobu] jest zgodny z

1999/5/EC.
Português
[Portuguese]
[Nome do fabricante] declara que este [tipo de equipamento] está conforme com os
requisitos essenciais e outras disposições da Directiva 1999/5/CE.
Slovensko
[Slovenian]
[Ime proizvajalca] izjavlja, da je ta [tip opreme] v skladu z bistvenimi zahtevami in
i direktive 1999/5/ES.
Slovensky
[Slovak]
[Meno výrobcu] [typ zariadenia] 

Suomi
[Finnish]
[Valmistaja = manufacturer] vakuuttaa täten että [type of equipment = laitteen
tyyppimerkintä] tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä
koskevien direktiivin muiden ehtojen mukainen.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
10
Taiwan 警語
第十二條經型式認證合格之低󰥈率射頻電機，非經許可，公司，商󳴈或使用者均不得擅自變
更頻率󰥉大󰥈率或變更原設計之特性及󰥈能
第十四條低󰥈率射頻電機之使用不得影響飛航安󰠑及干擾合法通信；經發現有干擾現象時，
應立即停用，並改善至無干擾時方得繼續使用
前項合法通信，指依電信法規定作業之無線電通信 低󰥈率射頻電機須忍受合法通信或工業
科學及醫療用電波輻射性電機設備之干擾
無線傳輸設備 (UNII)
在 5.25-5.35 秭赫頻帶󰠐操作之無線資訊傳輸設備，限於室󰠐使用 (4.7.5)
無線資訊傳輸設備忍受合法通信之干擾且不得干擾合法通信；如造成干擾，應立即停用，俟無
干擾之󳴇，始得繼續使用 (4.7.6)
無線資訊傳設備的製造廠商應確保頻率穩定性，如依製造廠商使用手冊上所述正常操作，發射
的信󳴈應維持於操作頻帶中(4.7.7)
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1. General Description
The DNUR-V72 module is 802.11 a/b/g/n sign-chip solutions for USB dongle. Its very small
and cost-effective modules which can bundle with PCs, TVs, set-top boxes, personal video
recorders and other devices to a WiFi network.
2. Usage
Thank you for purchasing the WLAN a/b/g/n USB2.0 Adapter that provides the easiest way to
wireless networking. This User Manual contains detailed instructions in the operation of this
product. Please keep this manual for future reference.
System Requirements
A laptop PC contains:
- 32 MB memory or greater
- 300 MHz processor or higher
Microsoft® Win2000/ME/98 Second Edition/XP
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3. Driver/Utility Installation / Uninstallation
3. Connecting to an Existing Network
1. Double click the shortcut icon of WLAN a+b+g+n USB2.0 Adapter on the desktop, and the
Configuration window appears.
2. Click on the Refresh button to list all available networks.
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Note! To automatically connect to the network with the strongest signal, select Enable Smart
Selection. Any displays in Profile List.
3. Network
Name. One of the following dialog boxes appears. Click “Yes” to continue.
4. If the chosen network has security enabled, the Security tab displays. Select the security
option used by the network. Contact the network administrator for the correct settings.
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5. If selecting WPA or 802.1X, select the EAP type, then click on the Configure button to
select the certificate.
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6. If selecting WPA-PSK, click on the Configure button to enter the PassPhrase.
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7. If selecting Pre-Shared Key, click on the Configure button to enter the correct Encryption
Keys.
Key entry method:
a.10hex digits: User must enter 10 hexadecimal digits.
The hexadecimal define is "0-9" and "A-F".
ex: 123456abc
b.5 chars: User must enter 5 characters. ex: ab3#@
c.13 chars: User must enter 13 characters.
ex: ab3#@kf08&kdk
d.16 chars: User must enter 16 characters.
ex: ab3#@kf08&kdk456
For WEP key, please contact with MIS administrator.
8. Click on OK (or Apply if using the other tabs) when done to save the settings.
9. Once connected (the icon or in front of the name of the Connected Network), you
can check the signal strength from the icon in the Windows System Tray.
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Additional Note for Windows XP
In Windows XP, it is recommended that you use the WLAN a+b+g+n USB2.0 Adapter
Configuration Utility. Before using the Utility, please follow the steps below to disable the
Windows XP Zero Configuration:
Option 1:
1. Double click the shortcut icon to open the Utility.
2. From the Windows System Tray, you should see the signal icon. Right-click it and select
-
Option 2:

Right-



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4. Creating an Ad Hoc New Network
NOTE! Ad-hoc mode is available only for 802.11b/g. It is not available for 802.11a. This is a
client product and do not have radar detection function specified by FCC. The software will
not let you to use ad-hoc under 802.11a.
1. In the Configuration window, click New .
2. 
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3. Choose the check box of Enable Advanced Setting to edit all settings.
4. If joining or creating an Ad-Hoc network, choose Ad Hoc.
5. Click OK (or Apply if using the other tabs) to save the settings.
For details of each setting, refer to Modifying a Wireless Network on page 20.
6. Click the Security tab. If not using security, select None.
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7. If security is used, select Pre-Shared Key and click on the Configure button.
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8. Enter an encryption key in the Shared: First field.
9. Click OK (or Apply if using the other tabs) to save the settings. The new Network Name
is listed in the Profile List.
The driver does not allow channel selection in Ad-Hoc mode. Instead, the driver starts with
an initial channel then checks channel status. If the channel is busy, the driver
automatically uses a different channel.
For details of each setting, please see chapter 5.
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5. Modifying a Wireless Network
5.1 Infrastructure Mode and Ad Hoc Mode
You can set the Wireless Network Adapter to work in either Infrastructure mode or Ad Hoc
mode.
NOTE! Ad-hoc mode is available only for 802.11b/g. It is not available for 802.11a. This is a
client product and do not have radar detection function specified by FCC. The software will
not let you to use ad-hoc under 802.11a.
Infrastructure Mode
In infrastructure mode, devices communicate with each other by first going through an Access
Point (AP). Wireless devices can communicate with each other or can communicate with a
wired network. When one AP is connected to wired network and a set of wireless stations, it
is referred to as a BSS (Basic Service Set).
Ad Hoc Mode
Ad--to-
In ad hoc mode, devices communicate directly with each other without using an Access Point
(AP).
NOTE! Ad-hoc mode is available only for 802.11b/g. It is not available for 802.11a. This is a
client product and do not have radar detection function specified by FCC. The software will
not let you to use ad-hoc under 802.11a.
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5.2 Modifying a Wireless Network
1. 
on the desktop.
Note! Refresh button and
double click a Network Name from Available Networks. The chosen Network
Name is listed in the Profile List.
2. From the Profile List, select one Profile and click Modify button .
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3. Select Profile Editor tab and edit the settings. Click OK to save the modifications.
Configuration Name: This name identifies the configuration. This name should be
unique.
Network Name (SSID1) (SSID2) (SSID3): The name of the wireless network. This

blank, your computer will connect to an AP with the best signal strength.
Network Connection: Specifies the mode of the network. Two options are

Power Saving: Minimizes power consumption while maintaining network
connectivity and high data transfer performance. In Ad Hoc mode, Power Savings
function cannot be enabled. The power management options are:
Off: PC Card is powered up at all times.
Normal: PC Card sleeps less often and stays asleep for a shorter period.
Maximum: PC Card sleeps more frequently and stays asleep as much as
possible.
Wireless Mode: 

mode.
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NOTE! Ad-hoc mode is available only for 802.11b/g. It is not available for 802.11a.
This is a client product and do not have rador detection function specified by FCC.
The software will not let you to use ad-hoc under 802.11a.
Ad Hoc Net Start: Specifies a band to establish an Ad Hoc network if no matching
SSID is found. Options available are the following: 802.11b and 802.11g.
NOTE! Ad-hoc mode is available only for 802.11b/g. It is not available for 802.11a.
This is a client product and do not have radar detection function specified by FCC.
The software will not let you to use ad-hoc under 802.11a.
802.11b Range: Options are Normal Range and Extended Range. This function
can let user to determine the transfer range in 802.11b mode. Extended Range can
prolong the transfer range with a lower data transmitting rate.
Scan Mode: Options are Active Scan, Passive Scan and Auto. In Active Scan, the
driver sends out the probe request frames from each channel and collects the
response frames from the responding. In Passive Scan, the driver scan each
requested channel, listening the beacons on each channel.
Transmit Power: This setting allows you to change the output power of the PC Card
to increase or decrease the coverage area.
QoS: Disables or enables the PC Card to cooperate in a network using QoS
(Quality of Service).
2.4 GHz Preamble: Allows Ad-Hoc compatibility with other 2.4 GHz devices. Two
options are Short and Long and Long only. Use Long Only when configuring the
client for an 802.11b RoamAbout AP wireless network.
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4. Select Security tab and choose the security mode.
Note! Check with your Network Administrator for the security features supported by your
AP.
WPA: Enables the use of WiFi protected Access (WPA). This option requires IT
administration.
a) Select WPA to open the WPA EAP drop-down menu. The options includes TLS
and PEAP.
b) Click on the Configure button and complete the configuration information in the
Define Certificate dialog.
WPA-PSK: Enables the WPA-Pre Shared Key (PSK). Click on the Configure button
and complete the configuration information in the WPA Passphrase dialog.
802.1x: Enables 802.1x security. This option requires IT administration.
a) Select 802.1x to open the 802.1x EAP drop-down menu. The options include TLS
and PEAP.
b) Click on the Configure button and complete the configuration information in the
Define Certificate dialog.
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Pre-Shared Key: Enables the use of pre-shared keys that are defined on the AP and
the station.
a) Select the Pre-Shared Key radio button.
b) Click on the Configure button and complete the configuration information in the
Define Certificate dialog.
None: No security.
5. Define the Certificate.
Select a Certificate: Select the Certificate to Authenticate to the RADIUS server
from the drop-down menu.
Use any Certificate Authority: The Default Setting. Select this radio button to use
any Certificate Authority (CA) for authentication.
Choose a Certificate Authority: Select this radio button to choose the desired
Certificate Authority for authentication from the drop-down menu.
Server/Domain Name: The the RADIUS server name or the domain name used for
the network access.
Login Name: The username used to log into the server or domain.
Define User Information (PEAP): Click on the Define User Information button and
complete the configuration information in the Define User Information dialog.
6. If selecting WPA-PSK, click on the Configure button to enter the PassPhrase. The
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PassPhrase must be a minimum of 8 printable ASCII characters. The PassPhrase should
be at least 20 characters to make it more difficult for an attacker to decipher the key.
7. If selecting Pre-Shared Key, click on the Configure button to enter the Encryption
Keys.When finished, click OK. For WEP key, please contact with MIS administrator.
Key Entry Method: Determines the entry method for the key. Hexadecimal (0-9, A-F)
or ASCII text (all keyboard characters).
Default Encryption Key: Allows you to choose one encryption key (First, Second,
Third, or Fourth) as the transmit key, which encrypts transmissions from the PC Card.
Unique Key: Defines the per-session encryption key for the current network
configuration. Not used in Ad-Hoc mode.
Shared Keys: 
keys must be in the correct position (First, Second, Third, or Fourth).
Key Length: Defines the length of each encryption key.
o For 40/64 bit (enter 10 digits for hexadecimal or 5 characters for ASCII)
o For 104/128 bit (Enter 26 digits for hexadecimal or 13 characters for ASCII)
When the length is changed, the number of available characters in the field
automatically changes. If a previously entered key is too long, the key is automatically
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truncated to fit. If the key length is increased again, the key does not update to the
previous value.
8. Click OK to save the settings.
9. 
If the network uses DHCP server, choose Obtain an IP address automatically.
If the network does not use DHCP server, choose Use the following IP address to set
the relative settings. For the IP configuration information, please contact the network
administrator.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
30
Appendix A: FAQ about WLAN
1. Can I run an application from a remote computer over the wireless network?
This will depend on whether or not the application is designed to be used over a network.

network.
2. Can I play computer games with other members of the wireless network?
Yes, as long as the game supports multiple players over a LAN (local area network).

3. What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique developed by the
military for use in reliable, secure, mission-critical communications systems. It is designed to
trade off bandwidth efficiency for reliability, integrity, and security. In other words, more
bandwidth is consumed than in the case of narrowband transmission, but the trade-off
produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver
knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not
tuned to the right frequency, a spread-spectrum signal looks like background noise. There are
two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping
Spread Spectrum (FHSS).
4. What is DSSS? What is FHSS? And what are their differences?
Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes
frequency in a pattern that is known to both transmitter and receiver. Properly synchronized,
the net effect is to maintain a single logical channel. To an unintended receiver, FHSS
appears to be short-duration impulse noise. Direct-Sequence Spread-Spectrum (DSSS)
generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a
chip (or chipping code). The longer the chip, the greater the probability that the original data
can be recovered. Even if one or more bits in the chip are damaged during transmission,
statistical techniques embedded in the radio can recover the original data without the need for
retransmission. To an unintended receiver, DSSS appears as low power wideband noise and
is rejected (ignored) by most narrowband receivers.
Wistron
NeWeb
Wistron NeWeb Corporation
20 Park Avenue II, Hsinchu Science Park, Hsinchu 308, Taiwan, R.O.C.
Phone: 886-3-666-7799 Fax: 886-3-666-7711
Website: www.wneweb.com
Wistron NeWeb Confidential Document
31
5. Would the information be intercepted while transmitting on air?
WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence
Spread Spectrum technology, it has the inherent security feature of scrambling. On the
software side, WLAN offers the encryption function (WEP) to enhance security and access
control.
6. What is WEP?
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 64-bit or 128-bit
shared key algorithm, as described in the IEEE 802.11 standard.
7. What is infrastructure mode?
When a wireless network is set to infrastructure mode, the wireless network is configured to
communicate with a wired network through a wireless access point.
8. What is roaming?
Roaming is the ability of a portable computer user to communicate continuously while moving
freely throughout an area greater than that covered by a single access point. Before using the
roaming function, the workstation must make sure that it is the same channel number with the
access point of dedicated coverage area.
To achieve true seamless connectivity, the wireless LAN must incorporate a number of
different functions. Each node and access point, for example, must always acknowledge
receipt of each message. Each node must maintain contact with the wireless network even
when not actually transmitting data. Achieving these functions simultaneously requires a
dynamic RF networking technology that links access points and nodes. In such a system, the

evaluates such factors as signal strength and quality, as well as the message load currently
being carried by each access point and the distance of each access point to the wired
backbone. Based on that information, the node next selects the right access point and
registers its address. Communications between end node and host computer can then be
transmitted up and down the backbone. As the user moves on, the en
regularly checks the system to determine whether it is in touch with the original access point
or whether it should seek a new one. When a node no longer receives acknowledgment from
its original access point, it undertakes a new search. Upon finding a new access point, it then
re-registers, and the communication process continues.

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