Digitus DN-7033 /-A, DN-7033-A Datasheet

Digitus DN-7033 /-A, DN-7033-A Datasheet
User's Manual
FCC 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 or more 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.
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.
(2) This device must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits set forth for an
uncontrolled environment. This device and its antenna must not be co-located or
operating in conjunction with any other antenna or transmitter.
”To comply with FCC RF exposure compliance requirements, the antenna used for this
transmitter must be installed to provide a separation distance of at least 20 cm from all
persons and must not be co-located or operating in conjunction with any other antenna or
transmitter”.
CE Declaration of Conformity
For the following equipment: WLAN USB Adapter
Is herewith confirmed to comply with the requirements set out in the Council Directive on the
Approximation of the Laws of the Member States relating to Electromagnetic Compatibility
(89/336/EEC), Low-voltage Directive (73/23/EEC) and the Amendment Directive
(93/68/EEC), the procedures given in European Council Directive 99/5/EC and
89/3360EEC.
The equipment was passed. The test was performed according to the following
European standards:
EN 300 328 V.1.4.1 (2003)
EN 301 489-1 V.1.4.1 (2002) / EN 301 489-17 V.1.2.1 (2002)
EN 60950-1: 2002
European standards dictate maximum radiated transmit power of 100mW EIRP and
frequency range 2.400-2.4835GHz; In France, the equipment must be restricted to the
2.4465-2.4835GHz frequency range and must be restricted to indoor use.
Package Contents............................................................................................................. 1
Chapter 1: Introduction...................................................................................................... 2
1.1 Overview of the product ....................................................................................... 2
1.2 Features............................................................................................................... 2
1.3 LED Status ........................................................................................................... 2
Chapter 2: Installation Guide............................................................................................. 3
2.1 Hardware Installation ........................................................................................... 3
2.2 Software Installation............................................................................................. 3
2.2.1 Overview.................................................................................................... 3
2.2.2 Software Installation for Windows 2000 ..................................................... 3
Chapter 3: Configuration ................................................................................................... 8
3.1 Current Status ...................................................................................................... 8
3.2 Profile Management ........................................................................................... 10
3.2.1 Add or Modify a Configuration Profile....................................................... 10
3.2.2 Remove a profile...................................................................................... 13
3.2.3 Switch another Profile .............................................................................. 13
3.2.4 Import a Profile......................................................................................... 14
3.2.5 Export a Profile ........................................................................................ 14
3.2.6 Scan Available Networks ......................................................................... 14
3.2.7 Auto Profile Selection Management ......................................................... 15
3.3 Diagnostics ........................................................................................................ 16
3.3.1 Check Driver Information ......................................................................... 16
3.3.2 Check Receive and Transmit Statistical Information ................................ 17
Appendix A: Specifications .............................................................................................. 18
Appendix B: Glossary...................................................................................................... 19
108M Wireless USB Adapter User Guide
Package Contents
The following contents should be found in your box:
One Wireless USB Adapter
One USB Extension Cable
Quick Installation Guide
One Wireless Adapter Resource CD, including:
•
•
•
Wireless Client Utility and Drivers
User Guide
Other Helpful Information
Note: If any of the listed contents are damaged or missing, please contact the retailer
from whom you purchased the Wireless Adapter for assistance.
-1-
108M Wireless USB Adapter User Guide
Chapter 1: Introduction
1.1 Overview of the product
The Wireless USB Adapter gives you the flexibility to install your PC or notebook PC in
the most convenient location available, without the cost of running network cables.
The adapter's auto-sensing capability allows high packet transfer of up to 108Mbps for
maximum throughput, or dynamic range shifting to lower speeds due to distance or
operating limitations in an environment with a lot of electromagnetic interference. It can
also interoperate with all 11Mbps wireless (802.11b) products. Your wireless
communications are protected by up to 152-bit WEP and WPA encryption for high
security.
It adopts 2x to 3x eXtended RangeTM WLAN transmission technology so that
transmission distance is 2-3 times of traditional 11g/b solutions, up to 855.36m tested in
China. Transmission range is extended to 4-9 times.
It adopts 108M Super GTM WLAN Transmission Technology, which offers the highest
throughput performance available on the market today, link rates of up to 108Mbps. In
dynamic 108M mode, the device can attach 802.11b, 802.11g and 108Mbps Super GTM
devices at the same time in an integrated environment.
1.2 Features
Complies with IEEE802.11g, IEEE802.11b standards
Adopts 108M Super GTM and 2x to 3x eXtended RangeTM wireless LAN
transmission technology
Supports WPA data security, IEEE802.1x authentication, TKIP/AES encryption,
64/128/152-bit WEP encryption
Supports 108/54/48/36/24/18/12/9/6/11/5.5/2/1Mbps wireless LAN data transfer
rates
Provides USB interface
Supports Ad-Hoc and Infrastructure modes
Supports roaming between access points when configured in Infrastructure mode
Ease to configure and provides monitoring information
Supports Windows 98, Me, 2000, XP
Internal Antenna
1.3 LED Status
LED Indications
Status
Working Status
Green
Intermittently
The adapter is in an electricity saving status or
the adapter is already connected but is not
transmitting or receiving data.
Green
Lit
The adapter is on wake up status.
Green
Flashing
The adapter is transmitting and receiving data.
-2-
108M Wireless USB Adapter User Guide
Chapter 2: Installation Guide
2.1 Hardware Installation
1.
2.
Connect one end of the USB cable to the Adapter.
Connect the other end of the USB cable to the USB port on your computer. Because
the Adapter gets its power from the host, there is no external power supply. The LED
should light up when the Adapter is plugged in and the PC is on.
2.2 Software Installation
2.2.1 Overview
The Adapter’s Setup Wizard will guide you through the installation procedure for
Windows 2000, XP. The Setup Wizard will install the Wireless Drivers & Utility and
drivers.
When you install the hardware before the software, the system will prompt “Found New
Hardware Wizard”, click Cancel, and run the Setup Wizard program on the CD-ROM.
The Setup steps for Windows 2000 and Windows XP are very similar. The following
setup steps are for Windows 2000.
2.2.2 Software Installation for Windows 2000
1.
I Insert the Resource CD into your CD-ROM drive, click Start and choose Run. In
the field that appears, enter F:\UWCU\Win2000_XP\Setup.exe (if “F” is the letter of
your CD-ROM drive), figure 2-1 should then appear.
2.
You can click Cancel to end the installation on the Preparing Setup screen, figure
2-1. Otherwise, the Setup Wizard will display a screen similar to that shown in figure
2-2 after a moment.
Figure 2-1
3.
Wireless Client Utility – Install Shield Wizard
To continue, click Next on the screen, figure 2-2. Click Cancel to end the
-3-
108M Wireless USB Adapter User Guide
Installation.
Figure 2-2
4.
Wireless Client Utility Installation Program
The Setup Wizard will ask you to choose a Setup type in figure 2-3. It is
recommended that you select Install Client Utilities and Driver. Select Install
Driver Only to install driver only, select Make Driver Installation Diskette(s) to
make the diskette(s) as the installation driver. Select Install Client Utilities and
Driver and Next to continue the Installation. Click Back to return to the previous
page, or click Cancel to end the Installation.
Figure 2-3
5.
Select the setup type.
Figure 2-4 should appear. Click Yes to continue the Installation, or click No to end
the Installation.
-4-
108M Wireless USB Adapter User Guide
Figure 2-4
6.
Click Browse to change the Destination Location of the software in figure 2-5. Click
Next to continue the Installation. Click Back to return to the previous page, or click
Cancel to end the Installation.
Figure 2-5
7.
Question
Choose Destination Location
The Setup Wizard will ask you to create a new folder or select one from the Existing
Folders list shown in figure 2-6. It is recommended that you keep the default value.
Click Next to continue the Installation. Click Back to return to the previous page, or
click Cancel to end the Installation.
Figure 2-6
Select a Program Folder
-5-
108M Wireless USB Adapter User Guide
8.
The Setup Wizard will notify you of how to proceed with the installation, shown in
figure 2-7. Click OK to continue the Installation.
Figure 2-7
9.
Information Prompt
While files are copying, you will see a warning box, shown in figure 2-8. Please
select YES to continue installation. Our drivers have been tested thoroughly, and are
able to work with the operating system.
Figure 2-8
Windows 2000 Warning Box
Note: In Windows XP, the warning box is similar to that shown figure 2-8a, Please
select Continue Anyway to continue installation.
Figure 2-8a
Windows XP warning box
-6-
108M Wireless USB Adapter User Guide
10. After the files have been successfully copied, the screen in figure 2-9 will appear.
Click OK to reboot the system.
Figure 2-9
-7-
Finish
108M Wireless USB Adapter User Guide
Chapter 3: Configuration
The Wireless USB Adapter can be configured by Wireless Client Utility. This section
describes how to configure your Wireless USB Adapter for wireless connectivity on your
Wireless Local Area Network (WLAN) and use the data security encryption features.
After installing the Adapter, the Adapter’s tray icon
will appear in your system tray.
It appears at the bottom of the screen, and shows the signal strength using color and the
received signal strength indication (RSSI).
If the icon is gray, there is no connection.
If the icon is red, there is poor signal strength and the RSSI is less than 5dB.
If the icon is yellow, there is poor signal strength and the RSSI is between 5dB
and 10dB.
If the icon is green, there is good signal strength and the RSSI is between 10dB
and 20dB.
If the icon is green, there is excellent signal strength and the RSSI is more than
20dB.
Double-click the icon and the Current Status screen of Wireless Client Utility will appear.
From this screen, you can view the strength of the Adapter’s signal and the quality of its
connection. You can also click Advanced to view additional status information about the
current wireless connection. To Edit or add a configuration profile, click the Profile
Management tab. To Display current diagnostics information, click the Diagnostics tab.
You can also run the Utility by clicking the Start>Program> Wireless >108M USB
Wireless Client Utility. The Wireless client Utility provides a complete and easy to use
set of tools to:
Display current status information
Edit and add configuration profiles
Display current diagnostics information
The section below introduces these above capabilities.
3.1 Current Status
The Current Status tab contains general information about the program and its
operations. The Current Status tab does not require any configuration.
-8-
108M Wireless USB Adapter User Guide
Figure 3-1
Current Status
The following table describes the items found on the Current Status screen.
Profile Name - The name of current selected configuration profile. Set up the
configuration name on the General tab of Profile Management.
Link Status - Shows whether the station is associated to the wireless network.
Wireless Mode - Displays the wireless mode. Configure the wireless mode on the
Advanced tab of Profile Management.
Network Type - The type of network the station is currently connected with. The
options include:
•
•
Infrastructure (access point)
Ad Hoc
Configure the network type on the Advanced tab of Profile Management.
IP Address - Displays the computer’s IP address.
Current Channel - Shows the currently connected channel.
Data Encryption - Displays the encryption type that the driver is using. Configure
the encryption type on the Security tab of Profile Management.
Server Based Authentication - Shows whether server based authentication is
used.
Signal Strength - Shows the strength of the signal.
Note: In the Wireless Client Utility, access the General tab, Security tab, Advanced tab
by clicking New or Modify on the Profile Management tab.
Click Advanced to see advanced information about the program and its operations. For
more information, please refer to the help file of the utility.
-9-
108M Wireless USB Adapter User Guide
Figure 3-2
Advance Status
3.2 Profile Management
Click the Profile Management tab of the Wireless Client Utility and the Profile
management screen will appear, figure 3-3. The Profile Management tab provides tools
to:
Add a profile
Edit a profile
Remove a profile
Switch another Profile
Import a Profile
Export a Profile
Scan Available Networks
Order profiles
Figure 3-3
Profile Management tab
3.2.1 Add or Modify a Configuration Profile
To add a new configuration profile, click New on the Profile Management tab. To modify a
configuration profile, select the configuration from the Profile list and click Modify.
The Profile Management dialog box will display a screen similar to that shown in Figure
3-4.
1.
Edit the General tab
Profile Name - Identifies the configuration profile. This name must be unique.
- 10 -
108M Wireless USB Adapter User Guide
Profile names are not case sensitive.
Client Name - Identifies the client machine.
Network Names (SSIDs) - The IEEE 802.11 wireless network name. This field has
a maximum limit of 32 characters.
Figure 3-4
2.
General Tab of Profile Management
Edit the Security tab
Edit the fields in the Security tab of Profile Management to configure the profile. To define
the security mode, select the radio button of the desired security mode.
WPA - Wi-Fi Protected Access
WPA Passphrase - Wi-Fi Protected Access Passphrase
802.1x - Enables 802.1x security.
Shared Key (Static WEP) - Enables the use of shared keys that are defined on both
the access point and the station. To define shared encryption keys, choose the
Shared Key radio button and click the Configure button to fill in the Define Shared
Keys window.
None: No security (not recommended).
Note: If the access point that the wireless adapter is associating to has WEP set to
optional and the client has WEP enabled, make sure that Allow Association to Mixed
Cells is checked on the Security Tab to allow association. To complete WEP encryption
configuration, you must select the 802.11 Authentication Mode as appropriate on the
Advanced tab of this Profile Management dialog.
- 11 -
108M Wireless USB Adapter User Guide
Figure 3-5
Security tab of Profile Management
Figure 3-6
3.
Define Shared Keys
Edit the Advanced tab
Power Save Mode •
Maximum - Select maximum mode to let the access point buffer incoming
messages for the wireless adapter. The adapter will detect the access point if
any messages are waiting periodically.
•
Normal - In Normal mode, the adapter will be switched to maximum mode
automatically when no large packets are retrieved.
•
Off - turns power saving off, thus powering up the wireless adapter continuously
for a short message response time.
802.11b Preamble - Specifies the preamble setting in 802.11b. The default setting
is Short & Long (access point mode), which allows both short and long headers in
the 802.11b frames. The adapter can only use short radio headers if the access
point supports and uses them. Set to Long Only to override allowing short frames.
Wireless Mode - Specifies 2.4 GHz 54 Mbps, 2.4 GHz 11 Mbps, or Super G
operation in an access point network. The wireless adapter must match the wireless
mode of the access point with which it associates.
- 12 -
108M Wireless USB Adapter User Guide
Wireless Mode when Starting an Ad Hoc Network - Specifies Super G or 2.4 GHz
54/11 Mbps to start an ad hoc network if no matching network name is found after
scanning all available modes. This mode also allows the selection of the channel the
wireless adapter uses. The channels available depend on the regulatory domain. If
the adapter finds no other ad hoc adapters, this selection specifies which channel
the adapter starts the ad hoc network with. The wireless adapter must match the
wireless mode and channel of the clients it associates.
802.11 Authentication Mode - Select which mode the wireless adapter uses to
authenticate to an access point:
•
Automatic causes the adapter to attempt authentication using shared, but switches it to
open authentication if shared fails.
•
Open System enables an adapter to attempt authentication regardless of its WEP settings. It
will only associate with the access point if the WEP keys on both the adapter and the access
point match.
•
Shared-Key only allows the adapter to associate with access points that have the same
WEP key.
For infrastructure (access point) networks, click Preferred APs… to specify up to
four access points to the client adapter that attempts to be associated to the access
points.
Figure 3-7
Advanced tab of Profile Management
3.2.2 Remove a profile
1.
2.
Go to the Profile Management tab.
Select the profile to remove from the Profile List.
3.
Click Remove.
3.2.3 Switch another Profile
1.
2.
Go to the Profile Management tab.
Click on the profile name in the Profile List.
3.
Click Activate.
- 13 -
108M Wireless USB Adapter User Guide
3.2.4 Import a Profile
1.
2.
3.
From the Profile Management tab, click Import…. The Import Profile will then
appear.
Browse the directory where the profile is located.
Highlight the profile name.
4.
Click Open, the imported profile will then appear in the profiles list.
Figure 3-8
Import Profile Dialog
3.2.5 Export a Profile
1.
From the Profile Management tab, highlight the profile to export.
2.
3.
Click Export…, the Export Profile window will then appear.
Browse the directory to export the profile.
4.
Click Save. The profile should then be exported to the specified location.
Figure 3-9
Export Profile Dialog
3.2.6 Scan Available Networks
1.
Click Scan on Profile Management, the Available Infrastructure and Ad Hoc
Networks window will appear.
2.
Click Refresh to refresh the list at any time.
- 14 -
108M Wireless USB Adapter User Guide
3.
Highlight a network name and click Activate to connect to an available network. If
no configuration profile exists for that network, the Profile Management window will
open the General tab. Fill in the Profile name and click OK to create the
configuration profile for that network.
Figure 3-10
Scan Available Networks Dialog
3.2.7 Auto Profile Selection Management
The auto selection feature allows the wireless adapter to automatically select a profile
from the list of profiles and use it to connect to the network. To add a new profile into the
Auto Selected Profiles list, please follow these steps.
1.
2.
On the Profile Management tab, click Order Profiles….
The Auto Profiles Selection management window will appear, with a list of all
created profiles in the Available Profiles box.
3.
Highlight the profiles to add to auto profile selection, and click Add. The profile will
appear in the Auto Selected Profiles box.
Highlight a profile in the Auto Selected Profiles box.
4.
5.
Click Move Up or Move Down as appropriate.
Note: The first profile in the Auto Selected Profiles box has highest priority, and the
last profile has lowest priority.
6.
7.
Click OK.
Check the Auto Select Profiles box on the Profile Management tab.
Note: When auto profile selection is enabled by checking Auto Select Profiles on the
Profile Management tab, the client adapter will scan for an available network. The
profile with the highest priority and the same SSID as one of the found networks will be
used to connect to the network. If the connection fails, the client adapter will try the next
highest priority profile that matches the SSID until an available network is found.
- 15 -
108M Wireless USB Adapter User Guide
Figure 3-11
Auto Profile Selection Management Dialog
3.3 Diagnostics
The Diagnostics tab of the Wireless Client Utility provides buttons used to retrieve
receiving and transmitting statistics. The Diagnostics tab does not require any
configuration.
The Diagnostics tab lists the following receive and transmit diagnostics for frames
received by or transmitted by the wireless network adapter:
Multicast frames transmitted and received
Broadcast frames transmitted and received
Unicast frames transmitted and received
Total bytes transmitted and received
Figure 3-12
Diagnostics tab
3.3.1 Check Driver Information
The Adapter Information contains general information about the network interface card
(the wireless network adapter) and the network driver interface specification (NDIS)
- 16 -
108M Wireless USB Adapter User Guide
driver. Access the adapter information from the Diagnostics tab.
Card Name - The name of the wireless network adapter.
MAC Address - The MAC address of the wireless network adapter.
Driver - The driver name and path of the wireless network adapter driver.
Driver Version - The version of the wireless network adapter driver.
Driver Date - The creation date of the wireless network adapter driver.
Client Name - The name of the client computer.
Figure 3-13
Adapter Information
3.3.2 Check Receive and Transmit Statistical Information
The Advanced Statistics show receiving and transmitting statistical information for the
following receive and transmit diagnostics for frames received by or transmitted to the
wireless network adapter.
Figure 3-14
Advanced Statistics
- 17 -
108M Wireless USB Adapter User Guide
Appendix A: Specifications
Normal
Interface
A-type Male USB 2.0 Connector
Standards
IEEE802.11b; IEEE802.11g
Operating System
Windows 98; Windows Me; Windows 2000; Windows XP
Transmission
Distance
In door up to 100m, out door up to 300m (it is limited to the
environment).
Indoor up to 200m, Outdoor up to 830m (Adopt 2x to 3x eXtended
RangeTM WLAN transmission technology, it is limited to the
environment)
Radio Data Rate
108/54/48/36/24/12/9/6/11/5.5/2/1 Mbps (Auto Rate Sensing)
Modulation
1M DBPSK; 2M DQPSK; 5.5M, 11M CCK; 6M, 9M, 12M, 18M,
24M, 36M, 48M, 54M, 108M OFDM
Media
Protocol
Access
CSMA/CA with ACK
Transmit Power
18dBm
Data Security
WPA; 64/128/152 BIT WEP; TKIP/AES
Frequency
2.4 ~ 2.4835GHz
Spread Spectrum
Direct Sequence Spread Spectrum (DSSS)
Channel
13
Power
Consumption
Typically 480mA in full Transmit (TX), 420mA in full Receive (RX)
Safety & Emission
FCC, CE
Physical Environmental
Operating Temp
0℃~40℃ (32℉~104℉)
Storage Temp
-40℃ – 70℃ (-40℉~158℉)
Humidity
10% - 95% RH, Non-condensing
Dimensions
(W×D×H)
3.9×1.2×.4 in. (100×30×11 mm)
- 18 -
108M Wireless USB Adapter User Guide
Appendix B: Glossary
108M Super GTM WLAN Transmission Technology - 108M Super GTM WLAN
Transmission Technology employs multiple performance-enhancing techniques
including packet bursting, fast frames, data compression, and dynamic turbo mode
that combine to improve the throughput and range of wireless networking products.
Users can experience link rates of up to 108Mbps, twice the industry-standard
maximum data link rate of 54Mbps, while preserving full compatibility with traditional
802.11g or 802.11b networks. 108M Super GTM products offer the highest throughput
performance available on the market today. In dynamic 108M mode, the device can
attach 802.11b, 802.11g and 108Mbps Super GTM devices at the same time in an
integrated environment.
2x to 3x eXtended RangeTM WLAN Transmission Technology - The WLAN device
with 2x to 3x eXtended RangeTM WLAN transmission technology make its sensitivity up to
105 dB, which gives users the ability to have robust, longer-range wireless connections.
With this range-enhancing technology, a 2x to 3x eXtended RangeTM based client and
access point can maintain a connection at as much as three times the transmission
distance of traditional 802.11b and 802.11g products, for a coverage area that is up to nine
times greater. A traditional 802.11b and 802.11g product transmission distance is about
300m, A 2x to 3x eXtended RangeTM based client and access point can maintain a
connection transmission distance may be up to 830m.
802.11b - The 802.11b standard specifies a wireless product networking at 11 Mbps
using direct-sequence spread-spectrum (DSSS) technology and operating in the
unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11b
networks are also referred to as Wi-Fi networks.
802.11g - specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b
devices, and WEP encryption for security.
Ad-hoc Network - An ad-hoc network is a group of computers, each with a wireless
adapter, connected as an independent 802.11 wireless LAN. Ad-hoc wireless
computers operate on a peer-to-peer basis, communicating directly with each other
without the use of an access point. Ad-hoc mode is also referred to as an
Independent Basic Service Set (IBSS) or as peer-to-peer mode, and is useful at a
departmental scale or SOHO operation.
DSSS (Direct-Sequence Spread Spectrum) - DSSS generates a redundant bit pattern
for all data transmitted. This bit pattern is called a chip (or chipping code). Even if one
or more bits in the chip are damaged during transmission, statistical techniques
embedded in the receiver 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. However, to an
intended receiver (i.e. another wireless LAN endpoint), the DSSS signal is recognized
- 19 -
108M Wireless USB Adapter User Guide
as the only valid signal, and interference is inherently rejected (ignored).
FHSS (Frequency Hopping Spread Spectrum) - FHSS continuously changes (hops)
the carrier frequency of a conventional carrier several times per second according to
a pseudo-random set of channels. Because a fixed frequency is not used, and only
the transmitter and receiver know the hop patterns, interception of FHSS is extremely
difficult.
Infrastructure Network - An infrastructure network is a group of computers or other
devices, each with a wireless adapter, connected as an 802.11 wireless LAN. In
infrastructure mode, the wireless devices communicate with each other and to a
wired network by first going through an access point. An infrastructure wireless
network connected to a wired network is referred to as a Basic Service Set (BSS). A
set of two or more BSS in a single network is referred to as an Extended Service Set
(ESS). Infrastructure mode is useful at a corporation scale, or when it is necessary to
connect the wired and wireless networks.
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).
SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric
key identifying a wireless local area network. For the wireless devices in a network to
communicate with each other, all devices must be configured with the same SSID.
This is typically the configuration parameter for a wireless PC card. It corresponds to
the ESSID in the wireless Access Point and to the wireless network name.
WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or
128-bit or 152-bit shared key algorithm, as described in the IEEE 802.11 standard.
Wi-Fi - A trade name for the 802.11b wireless networking standard, given by the
Wireless Ethernet Compatibility Alliance (WECA, see http://www.wi-fi.net), an
industry standards group promoting interoperability among 802.11b devices.
WLAN (Wireless Local Area Network) - A group of computers and associated
devices communicate with each other wirelessly, which network serving users are
limited in a local area.
WPA (Wi-Fi Protected Access) - A wireless security protocol use TKIP (Temporal
Key Integrity Protocol) encryption, which can be used in conjunction with a RADIUS
server.
- 20 -
108M Wireless USB Adapter User Guide
Safety Information:
This device may only be operated in enclosed, dry rooms. To prevent the risk of fire or electrical
shock, the device must be protected from moisture. In the event of a defective power plug,
please contact an authorized retailer. In the event of damage to the housing or the power plug,
do not operate. Do not open the device. Repairs may only be performed by an authorized
retailer.
Note:
In the event of incorrect installation and improper use in a residential area, the device may
cause disruptions in radio devices and other electronic devices. Proper use means that the
device is operated with shielded connector cables as far as possible, for network products also
with shielded cables of category 5e and higher. The device was tested and lies within the limits
for computer accessories of class A according to the requirements of EN 55022.
Warning:
This is a class A device. This device can cause radio interference in residential areas; in this
case, the operator may be required to perform and bear the costs for appropriate measures.
Conformity Declaration:
The device fulfils the EMC requirements of EN 55022 class A for ITE and EN 55024. Devices
with external or built-in power supply also fulfil the requirements of EN 61000-3-2 and EN
61000-3-3. The basic protection requirements of the “EMC Directive” 89/336/EEC are therefore
fulfilled. The CE conformity has been certified. The corresponding declarations are available
from the manufacturer.
Trademarks:
All company, brand and product names used in these instructions are trademarks or registered
marks of the corresponding companies.
- 21 -
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement