Edimax Technology Co 9571260303 Wireless LAN PCI Card User Manual EW 7126 ME V1 FCC

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Wireless LAN PCI Card
EW-7126
User Manual
Version: 1.0
(Mar., 2002)
COPYRIGHT
Copyright  2002/2003 by this company. All rights reserved. No part of this
publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language or computer language, in any form or
by any means, electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written permission of this company
This company makes no representations or warranties, either expressed or
implied, with respect to the contents hereof and specifically disclaims any
warranties, merchantability or fitness for any particular purpose. Any software
described in this manual is sold or licensed "as is". Should the programs
prove defective following their purchase, the buyer (and not this company, its
distributor, or its dealer) assumes the entire cost of all necessary servicing,
repair, and any incidental or consequential damages resulting from any defect
in the software. Further, this company reserves the right to revise this
publication and to make changes from time to time in the contents hereof
without obligation to notify any person of such revision or changes.
All brand and product names mentioned in this manual are trademarks and/or registered
trademarks of their respective holders.
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 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:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
4. Consult the dealer or an experienced radio technician for help.
FCC Caution
This equipment must be installed and operated in accordance with provided
instructions and a minimum 20 cm spacing must be provided between
computer mounted antenna and person’s body (excluding extremities of
hands, wrist and feet) during wireless modes of operation.
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.
Any changes or modifications not expressly approved by the party responsible
for compliance could void the authority to operate equipment.
Federal Communication Commission (FCC) Radiation Exposure Statement
This equipment complies with FCC radiation exposure set forth for an
uncontrolled environment. In order to avoid the possibility of exceeding the
FCC radio frequency exposure limits, human proximity to the antenna shall
not be less than 20cm (8 inches) during normal operation.
The antenna(s) used for this transmitter must not be co-located or operating
in conjunction with any other antenna or transmitter.
R&TTE Compliance Statement
This equipment complies with all the requirements of DIRECTIVE 1999/5/CE
OF THE EUROPEAN PARLIAMENT AND THE COUNCIL of March 9, 1999 on
radio equipment and telecommunication terminal Equipment and the mutual
recognition of their conformity (R&TTE)
The R&TTE Directive repeals and replaces in the directive 98/13/EEC
(Telecommunications Terminal Equipment and Satellite Earth Station
Equipment) As of April 8, 2000.
Safety
This equipment is designed with the utmost care for the safety of those who
install and use it. However, special attention must be paid to the dangers of
electric shock and static electricity when working with electrical equipment. All
guidelines of this and of the computer manufacture must therefore be allowed
at all times to ensure the safe use of the equipment.
EU Countries Intended for Use
The ETSI version of this device is intended for home and office use in Austria,
Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy,
Luxembourg, the Netherlands, Portugal, Spain, Sweden, and the United
Kingdom.
The ETSI version of this device is also authorized for use in EFTA member
states: Iceland, Liechtenstein, Norway, and Switzerland.
EU Countries Not intended for use
None.
CONTENTS
1 INTRODUCTION ............................................................................. 1
1.1
1.2
1.3
F EATURES .................................................................................................... 1
S PECIFICATIONS ............................................................................................ 1
P ACKAGE C ONTENTS ..................................................................................... 2
2 INSTALLATION PROCEDURE ..................................................... 3
2.1
W INDOWS 98SE/M E /2000 ............................................................................. 3
2.1.1 Install the Driver ...................................................................................................... 3
2.1.2 Install the Utility ...................................................................................................... 3
2.2
W INDOWS XP ............................................................................................... 4
3 CONFIGURATION UTILITY ......................................................... 7
3.1
3.2
C ONFIGURATION ........................................................................................... 7
L INK S TATE .................................................................................................. 9
3.2.1 Site Survey............................................................................................................. 10
3.3
3.4
S ECURITY ................................................................................................... 11
S TATISTICS ................................................................................................. 13
4 TROUBLESHOOTING .................................................................. 14
1 Introduction
Thank you for purchasing the Wireless LAN PCI Card. This card features the latest
innovation wireless technology. IEEE 802.1x which request wireless stations to pass the
authorization by entering a unique user name and password designated by the authorization
server before connecting to the wireless devices such as Access Point or Router. TKIP
(Temporal Key Integrity Protocol) and AES (Advanced Encryption Standard) which are
advanced WLAN security technology included in the IEEE 802.11i standard. Furhtermore,
this card provides several kinds of power saving modes allowing user customizes the way of
saving the power from his/her portable or handheld devices. This card is cost-effective,
together with the versatile features, it is the best solution for you to builde your wirless
network.
1.1
Features
•
•
•
•
•
Complies with the IEEE 802.11b 2.4GHz (DSSS) standard.
•
•
•
Detachable antenna with long length cable provides convenience to locate the antenna.
1.2
High data transfer rate - up to 11Mbps.
Support 64/128-bit AES/TKIP/WEP Data Encryption function for high level of security.
Supports IEEE 802.1x advanced WLAN Security.
Supports peer-to-peer communication among any wireless users, no Access Point is
required.
Automatic fallback increases data security and reliability.
Supports the most popular operating system: Windows 98SE/Me/2000/XP, WinCE.Net and
Linux.
Specifications
•
•
•
•
•
•
•
•
Standards: IEEE 802.11b
•
•
•
•
•
•
•
Drivers: Windows 98SE/Me/2000/XP and Linux
Bus Type: PCI V2.2/2.1
Frequency Band: 2.4000~2.4835GHz (Industrial Scientific Medical Band)
Modulation: CCK@11/5.5Mbps, DQPSK@2Mbps, DBPSK@1Mbps
Radio Technology: Direct Sequence Spread Spectrum (DSSS)
Data Rate: 11/5.5/2/1Mbps auto fallback
Security: 64/128-bit AES/TKIP/WEP Data Encryption, IEEE 802.1x
Antenna: External detachable dipole antenna with coaxial cable
(Part No.: W111-094-D200, Cable Length: 94cm)
LEDs: TX/RX, Link
Transmit Power: 16dBm~18dBm
Dimension: 19(H) x 135(W) x 121(D) mm
Temperature: 32~131°F (0 ~55°C)
Humidity: 5-95% (NonCondensing)
Certification: FCC, CE, WHQL
1.3
Package Contents
Before you begin the installation, please check the items of your package. The package
should include the following items:
•
•
•
•
One PCI Card
One Antenna
One Quick Guide
One CD (Driver/Utility/Manual)
If any of the above items is missing, contact your supplier as soon as possible.
2 Installation Procedure
2.1
Windows 98SE/Me/2000
Before you proceed with the installation, please notice following descriptions.
Note1: The following installation was operated under Windows 2000. (Procedures will be the
same for Windows 98SE/Me.)
Note2: If you have installed the Wireless PCI Card driver & utility before, please uninstall the
old version first.
2.1.1 Install the Driver
1. Turn off your PC.
2. Insert the card into the PCI slot of your PC, the system will automatically find the device
and search for its driver.
3. Please select the “Driver\Win2000” folder (select the folder based on your PC’s OS
system) and the system will complete the driver installation.
2.1.2 Install the Utility
1. Insert the CD into the CD-ROM device and execute the "Utility\setup.exe" program. The
InstallShield Wizard box will appear, click "Next" to continue.
2. Follow the instruction of the installation program. The program will install the software
for this device directly.
3. Click "Finish" to complete the installation.
4. When you complete the Utility installation, a shortcut named “Rtl8180“ will appear in the
computer’s desktop and a new icon will be displayed in the system tray at the bottom of
the screen. Double click the shortcut or click the icon and start using the WLAN PCI
Card.
In the Desktop
2.2
In the taskbar
Windows XP
The installation process in Windows XP is similar with the process in Windows
98SE/Me/2000. Please refer to the instructions described in section 2.1.
Due to the Windows XP has built-in wireless network utility you may decide to use the
system’s utility or the one provided by this card. It is strongly recommended to using the
utility of this card.
A. Using the Windows XP’s Utility
Click the icon marked in red in the system tray and you may start using the Windows XP’s
wireless utility
B. Using the Utility of this card
1. Get into Windows XP’s Utility, click “Advanced“ button.
2. In “Wireless Network Connection Properties“ screen, uncheck the setting “Use Windows
to configure my wireless network settings“. Note that if you want to change back to the
Windows XP built-in utility, check the item again.
3. Double click the shortcut or click the icon and start using the WLAN PCI Card.
Note: If you don’t disable the XP’s Utility, you can still see the link status and statistics during
communication process from the card’s utility.
3 Configuration Utility
The Configuration Utility is a powerful application that helps you configure the Wireless LAN
PCI Card and monitor the link status and the statistics during the communication process.
This utility can be used to change the following configuration parameters when the device is
active.
3.1
Configuration
In the “Configuration”, you may set up the necessary parameters about the wireless LAN.
Parameter
Description
Network Type
•
Infrastructure – This operation mode requires the presence
of an 802.11 Access Point. All communication is done via the
Access Point.
•
Ad-Hoc – Select this mode if you want to connect to another
wireless stations in the Wireless LAN network without through
a Access Point.
SSID
The SSID (up to 32 printable ASCII characters) is the unique
name identified in a WLAN. The ID prevents the unintentional
merging of two co-located WLANs.
You may specify a SSID for the card and then only the device with
the same SSID can interconnect to the card.
Parameter
Description
Fragement Threshold
The value defines the maximum size of packets, any packet size
larger than the value will be fragmented. If you have decreased
this value and experience high packet error rates, you can
increase it again, but it will likely decrease overall network
performance. Select a setting within a range of 256 to 2432 bytes.
Minor change is recommended.
RTS Threshold
Minimum packet size required for an RTS (Request To Send). For
packets smaller than this threshold, an RTS is not sent and the
packet is transmitted directly to the WLAN. Select a setting within
a range of 0 to 2432 bytes. Minor change is recommended
Beacon Interval
This value specifies the duration between beacon packets
(milliseconds). The beacon packets include the card’s information
and are broadcasted to the WLAN network periodly. The beacon
period is fixed in 100ms.
Power Save Mode
•
CAM(Continuous Access Mode) – This card will always set
in active mode.
•
Max – Enable the card in the power saving mode when it is
idle.
•
Fast – Enable the card in the power saving mode when it is
idle, but some compoents of the card is still alive. In this
mode, the power consumption is larger than “Max“ mode.
Use Short Preamble
The preamble defines the length of the CRC block for
communication between the Access Point and the card. High
network traffic areas should use the shorter preamble type.
Turn Off Radio
When the setting is checked, the wireless connection of the card
will be disabled.
Show Icon in System Tray
Enable or disable the icon shown in the taskbar.
Channel
Select the number of the radio channel used for the networking.
The parameter is not active in the infrastructure operation mode.
Data Rate
Auto Rate Select
When it is enabled, the device will choose the most suitable
transmission rate automatically.
Parameter
1, 2, 5.5, 11MBps
Description
•
Not Used – Prohibits the device from operating at the
specified data rate.
•
Used – Allows the device operating at the specified data rate
•
Basic – Restrict the device to operate at least at the specified
data rate. At least one kind of data rate has to be set “Basic“.
Click “Apply“ button to save the above configurations, click
“Undo“ button to cancel the settings.
Note: The data rate is auto fallback among the range of the
used data rate in case obstacles or interference.
3.2
Link State
In the “Link State”, you can make connection to the wirelss devices and immediately
monitor the link status.
Parameter
Description
Current Channel
Shows the current channel used in the wireless connection
Data Rate
Shows the data rate of the connection.
Parameter
Link State
Description
Shows the status of the connection.
Checking Status – Represents the card is checking the
status of the wireless device.
•
•
Not Associated – Represents the connection is interrupted.
You may press “Rescan“ button to reconnect the wireless
device.
•
Associated – Represents the card is successfully linking to the
wireless device.
Rescan button
Click this button to scan the Access Point or Adapter which the
card connected before or intends to connect.
Detail
A screen will appear when you press the button. In this screen,
you may see all the parameters of the card and also the link
status.
Signal Strength
This bar shows the signal strength level. The higher percentage
shown in the bar, the more radio signal been received by the
card. This indicator helps to find the proper position of the
wireless device for quality network operation.
Signal Quality
This bar indicates the quality of the link. The higher the
percentage, the better the quality.
MAC Address
Shows the MAC Address of the card.
Site Survey button
Click this button to survey all APs or Adapters when operating in
Ad-Hoc mode nearby.
Statistics
Shows the total amounts of data packets that have been
successfully/unsuccessfully transmitted or received by the card.
3.2.1 Site Survey
This screen shows all Access Points, Routers or Adapters nearby when operating in Ad-Hoc
mode.
Click “Refresh” button to collect the SSID and Channel information of all the wireless
devices nearby. If you want to connect to any device on the list, double-click the item on the
list, and the card will automatically connect to the selected device.
10
3.3
Security
In the “Security”, you can enable or disable the WEP, TKIP and AES WLAN security
mechansims for the card.
WEP is an authentication algorithm, which protects authorized Wireless LAN users against
eavesdropping. WEP has been found that it has some security problems. TKIP is a
temporary quick-fix method defined in IEEE 802.11i standard to quickly overcome the
inherent weaknesses in WEP security. AES has been developed to ensure the highest
degree of security and authenticity for digital information and it is the most advanced
solution defined by IEEE 802.11i for the security in the wireless network.
The security setting must be the the same on the wireless devices within the network. This
card supports 64/128-bit WEP, TKIP and AES encryption functions.
11
Parameter
Description
Data Encryption
•
No Encryption – Disable the WEP Data Encryption.
•
WEP – Enable the WEP Data Encryption. When the item is
selected, you have to continue setting the WEP Key Length
and the encryption keys.
•
Realtek TKIP – Enable the TKIP Data Encryption. When the
item is selected, you have to continue setting the TKIP Key
Length and the encryption keys.
•
Auth Algorithm
Default Key ID
Realtek AES – Enable the AES Data Encryption. When the
item is selected, you have to continue setting the AES Key
Length and the encryption keys.
This setting has to be consistent with the wireless devices which
the card intends to connect.
• Open System – No authentication is needed among the
wireless devices.
•
Shared Key – Only wirelss devices using a shared key (WEP
Key, TKIP Key or AES Key identified) are allowed to
connecting each other. Setup the same key as the wireless
devices which the card intends to connect.
•
Auto Switch – Auto switch the authentication algorithm
depending on the wireless devices which the card is
connecting to.
Select one of the keys (1~4) as the encryption key.
12
Parameter
Description
Key Length
You may select the 64-bit or 128-bit to encrypt transmitted data.
Larger key length will provide higher level of security, but the
throughput will be lower.
Key1 ~ Key4
The keys are used to encrypt data transmitted in the wireless
network. Fill the text box by following the rules below.
• 64-bit – Input 10 digit Hex values (in the “A-F”, “a-f” and “0-9”
range) as the encryption keys. For example: “0123456aef“.
•
3.4
128-bit – Input 26 digit Hex values (in the “A-F”, “a-f” and “09” range) as the encryption keys. For example:
“01234567890123456789abcdef“.
Statistics
In the “Statistics”, you can get the real time information about the packet transmission and
receiving status.
13
4 Troubleshooting
This chapter provides solutions to problems usually encountered during the installation and
operation of the card.
1. What is the IEEE 802.11b standard？
The IEEE 802.11b Wireless LAN standard subcommittee which formulates the
standard for the industry. The objective is to enable wireless LAN hardware from
different manufactures to communicate.
2. What does IEEE 802.11 feature support？
The product supports the following IEEE 802.11 functions:
CSMA/CA plus Acknowledge Protocol
Multi-Channel Roaming
Automatic Rate Selection
RTS/CTS Feature
Fragmentation
Power Management
3. What is Ad-hoc？
An Ad-hoc integrated wireless LAN is a group of computers, each has a Wireless LAN
adapter, connected as an independent wireless LAN. Ad hoc wireless LAN is
applicable at a departmental scale for a branch or SOHO operation.
4. What is Infrastructure？
An integrated wireless and wireless and wired LAN is called an Infrastructure
configuration. Infrastructure is applicable to enterprise scale for wireless access to
central database, or wireless application for mobile workers.
5. What is BSS ID？
A specific Ad hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must
be configured with the same BSS ID.
6. What is WEP？
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40 bit shared
key algorithm, as described in the IEEE 802 .11 standard.
7. What is TKIP?
TKIP is a quick-fix method to quickly overcome the inherent weaknesses in WEP
security, especially the reuse of encryption keys. TKIP is involved in the IEEE 802.11i
WLAN security standard, and the specification might be officially released by early
2003.
14
8. What is AES?
AES (Advanced Encryption Standard), a chip-based security, has been developed to
ensure the highest degree of security and authenticity for digital information, wherever
and however communicated or stored, while making more efficient use of hardware
and/or software than previous encryption standards. It is also included in IEEE 802.11i
standard. Compare with AES, TKIP is a temporary protocol for replacing WEP security
until manufacturers implement AES at the hardware level.
9. Can Wireless products support printer sharing？
Wireless products perform the same function as LAN products. Therefore, Wireless
products can work with Netware, Windows 2000, or other LAN operating systems to
support printer or file sharing.
10. 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 series offer the encryption function (WEP) to
enhance security and Access Control. Users can set it up depending upon their needs.
11. 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 spreadspectrum (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 is, 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.
12. What is Spread Spectrum？
Spread Spectrum technology is a wideband radio frequency technique developed by
the military for use in reliable, secure, mission-critical communication 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).
15

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