Edimax EW-7733UND User manual

Edimax EW-7733UND User manual
Copyright by Edimax Technology Co, LTD. 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.
The product you have purchased and the setup screen may appear slightly different from
those shown in this QIG. For more detailed information about this product, please refer to
the User's Manual on the CD-ROM. The software and specifications are subject to change
without notice. Please visit our web site www.edimax.com for the update. All right reserved
including all brand and product names mentioned in this manual are trademarks and/or
registered trademarks of their respective holders.
CATALOG
Chapter I: Product Information ................................................................... 4
1-1 Introduction and safety information ................................................................................. 4
1-2 Safety Information .............................................................................................................. 5
1-3 System Requirements ....................................................................................................... 6
1-4 Package Contents .............................................................................................................. 6
1-5 Familiar with your new wireless network card ............................................................... 7
CHAPTER II:
Driver Installation and Configuration ........................... 8
2-1 Network Card Installation .................................................................................................. 8
2-2 Connect to Wireless Access Point ................................................................................. 15
2-2-1 Using Edimax Utility .............................................................................................. 16
2-3 Connection Profile Management.................................................................................... 21
2-3-1 Add a new entry..................................................................................................... 21
2-3-2 Remove an existing profile .................................................................................. 25
2-3-3 Edit an existing profile .......................................................................................... 26
2-3-4 Import / Export profile ........................................................................................... 27
2-3-5 WPS Profile Setup ................................................................................................ 29
2-3-5-1 PBC mode WPS configuration ................................................................ 31
2-3-5-2 PIN mode WPS configuration.................................................................. 32
2-4 View Link Status ............................................................................................................... 34
2-5 Advanced Settings ............................................................................................................ 37
2-5-1 ‘Advanced’ menu ................................................................................................... 37
CHAPTER III: Soft-AP Function ................................................................ 38
3-1 Switch to AP Mode and Station Mode ........................................................................... 38
3-2 Configure AP ..................................................................................................................... 39
3-3 Advanced Functionality .................................................................................................... 43
3-4 Access Control .................................................................................................................. 44
3-5 Associate List .................................................................................................................... 46
3-6 About................................................................................................................................... 47
CHAPTER IV:
Appendix ........................................................................... 48
4-1 Hardware Specification.................................................................................................... 48
4-2 Troubleshooting ................................................................................................................ 49
4-3 Glossary ............................................................................................................................. 51
Federal Communication Commission ............................................................................. 54
Chapter I: Product Information
1-1 Introduction and safety information
Thank you for purchasing this high-speed wireless dual band network card! This network
card can operate in 2.4GHz or 5GHz wireless network. Excepting common wireless
standards 802.11a/b/g, this wireless network card is also able to access 802.11n wireless
networks - data transfer rate is 450Mbps, and that’s six times faster than 802.11g wireless
network!
With easy-to-install USB 2.0 interface - a very common expansion port of computers - plug
this wireless network card into any empty USB port of your computer, just that simple!
Main Features







Complies with 2.4GHz/5GHz wireless 802.11a/b/g/n standards with data rate up to
450Mbps
Includes multi-language EZmax setup wizard
Supports USB 2.0/1.1 interface
Supports hardware & software WPS configuration function
Supports WMM, WMM-PS (IEEE 802.11e QoS standard)
Supports 64/128-bit WEP, WPA (TKIP with IEEE 802.1x),WPA2 (AES with IEEE
802.1x) for high security level
Supports operating system: Windows XP/Vista/7
* Maximum performance may vary depending on network conditions and environmental
factors.
1-2 Safety Information
In order to keep the safety of users and your properties, please follow the following safety
instructions:
1. This USB wireless network card is designed for indoor use only. DO NOT expose this
network card to direct sun light, rain, or snow.
2. DO NOT put this network card at or near hot or humid places, like kitchen or bathroom.
Also, do not left this wireless network card in the car in summer.
3. This network card is small enough to put in a child’s mouth, and it could cause serious
injury or could be fatal. If they throw the network card, the card will be damaged. PLEASE
KEEP THIS NETWORK CARD OUT THE REACH OF CHILDREN!
4. This network card will become hot when being used for long time (This is normal and is
not a malfunction). DO NOT put the network card on a paper, cloth, or other flammable
objects after the network card has been used for a long time.
5. There’s no user-serviceable part inside the network card. If you found that the network
card is not working properly, please contact your dealer of purchase and ask for help. DO
NOT disassemble the network card by yourself, warranty will be void.
6. If the network card falls into water, DO NOT USE IT AGAIN BEFORE YOU SEND THE
CARD TO THE DEALER OF PURCHASE FOR INSPECTION.
7. If you smell something strange or even see some smoke coming out from the network
card, switch the computer off immediately, and call dealer of purchase for help.
1-3 System Requirements




One CD-ROM drive
Hard Disk : At least 100MB available space
One available USB 2.0 port (May not work on USB 1.1 port, and performance will be
greatly reduced)
Operation System : Windows XP/Vista/7
1-4 Package Contents




Wireless USB Adapter x1
USB Cable x1
Quick Installation Guide x1
CD (EZmax Wizard / Utility, User Manual & Multi-Language QIG) x1
1-5 Familiar with your new wireless network card
1.
2.
3.
4.
USB Connector
Flippable Antenna
Link/Activity LED
WPS Button (Press to activate WPS pairing mode)
2
3
1
4
LED Name Light
Status
Link/
Blinking
Activity
Off
Description
Linked to a wireless access point /
Transferring data
Power off
CHAPTER II: Driver Installation and Configuration
2-1 Network Card Installation
Please follow the following instructions to install your new wireless network card:
1. Insert the USB wireless network card into an empty USB 2.0 port of your computer
when computer is switched on. Never use force to insert the card, if you feel it’s stuck,
flip the card over and try again.
2. The following message will appear on your computer, click ‘Cancel / Close’.
Under Windows XP
Under Windows Vista
3. Software Installation, This wizard can be run in Windows XP/Vista/7. The following
procedures are operated in Windows XP. You can install the Wireless Adapter by
EZMAX Setup Wizard in the CD-ROM including in the package. The wizard is an easy
and quick configuration tool for internet connection with series process.
When you start EZMAX Setup Wizard, you will get the following welcome screen.
Please choose the language to start the configuration. The wizard will guide you to
finish your network connection. We will not provide any instruction for the EZMAX Setup
Wizard here.
If you lose the CD ROM or you prefer the traditional setup procedure,
please follow the instruction as following step.
1. Execute ‘Setup.exe’ program inside the CD then the programs will appear. Please read
the end user license agreement and click ‘I accept the terms of the license agreement’
then click ‘Next’ button, to accept license agreement.
2. It is recommend installing driver and utility if the network card is installing the first time. If
you want to update the driver only, choose ’Install driver only’. Click ‘Next’ to continue.
3. You can choose the configuration tool used to configure the wireless network card here.
It’s recommended to select ‘Edimax Configuration Tool’, which provides fully access to
all functions of this wireless network card. If you prefer to use the wireless configuration
tool provided by Windows XP or Vista, please select ‘Microsoft Zero Configuration Tool’
then click ‘Next’.
4. Now you’ll see the following message, please click ‘Install’ to start utility installation. If
you see ‘Found New Hardware’ message again, please ignore it and
wait.
5. Please wait while the install procedure is running. When you see this message, please
click ‘Finish’ to complete the driver installation process.
6. After installation is complete, wireless configuration utility will be shown in the desktop of
your computer automatically. You will also see an icon at the lower-right corner of your
windows system. If you put the mouse cursor on the icon, the status of wireless card will
be displayed as a popup balloon.
HERE!
7. When you want to configure your wireless connection, please right click on this icon,
and a popup menu will appear. You can click ‘Launch Config Utility’ to start configuration
program. If you want to close the configuration utility, please click ‘Exit’.
8. Please note that if you stopped config utility by ‘Exit’ function, you’ll not be able to
maintain the wireless link to the access point you wish to use. In this case, you can start
config utility again by clicking ‘Edimax Wireless Utility’ icon from ‘Start’ -> ‘All Programs’
-> ‘Edimax Wireless’, as shown below.
2-2 Connect to Wireless Access Point
After the driver is correctly installed, it will try to connect to any unencrypted wireless
access point automatically. If you want to connect to a specific wireless access point, or the
access point you wish to connect uses encryption, you have to configure the wireless
network card and input required parameters, to get connected to the wireless access point
you wish to connect.
The current status of wireless connection will be displayed by Edimax configuration utility
icon:
Wireless connection is established, good signal reception.
Wireless connection is established, normal signal reception.
Wireless connection is established, weak signal reception.
Connection is not established yet.
Wireless network card is not detected.
There are two ways you can configure your wireless network card to connect to wireless
access point: using the Edimax configuration utility and using built-in windows zero
configuration utility.
2-2-1 Using Edimax Utility
Please follow the following instructions to use Ralink configuration utility to
connect to wireless access point.
1. Left-click the Ralink configuration utility icon located at lower-right corner of
computer desktop, and configuration menu will appear:
HERE!
2. Wireless utility will appear.
Click ‘Site Survey’
button to open the list of available wireless
networks (and their status).
There are 6 fields in ‘Site Survey’ list:
Field#
1 (SSID)
2 (Type)
Description
The Service-Set IDentifier of network device
(The name of network device)
The type of network device
Infrastructure (Access Point)
Ad-Hoc
3 (Channel)
4
(Wireless
mode)
The channel number of this network device
Available wireless mode.
802.11a wireless capability
802.11b wireless capability
802.11g wireless capability
802.11n wireless capability
5 (Security)
Security mode. When nothing is displayed
here, means this network device does not
require security and anyone can connect to it.
6
(Signal
Strength)
Shows the wireless signal strength in
percentage. Higher percentage means better
signal quality.
3. To connect to a wireless access point, double click on it:
4. If the wireless access point you wish to connect does not appear here, you
can click ‘Refresh’
button to scan for wireless access points again; if
the wireless access point you’re looking for still not appear, try to move the
computer closer.
5. You’ll be prompted with wireless access point’s encryption method (if any):
Click right arrow to continue. Generally you don’t have to change
encryption method, it will be detected automatically. If you selected a wrong
encryption method, connection will not be able to establish.
6. Please input encryption key (or passphrase, depends on encryption
method) here, then click right arrow.
7. Network card will attempt to connect to access point now, this may require
few seconds to minutes, please be patient. When you see there’s a check
shown beside the access point you wish to connect, your computer is
connected to access point you selected. The connection status will be
displayed in configuration utility also.
(see example picture below).
Windows will prompt you for establish connection also:
2-3 Connection Profile Management
For connections you’ll frequently use, you can save them as a profile and you
can recall all settings (security type, password, etc.) back soon.
2-3-1 Add a new entry
By this function you can setup the connection parameters for a specific
wireless access point in advance, so you can recall a set of connection
parameters quickly.
To do this, follow the following procedures:
1. Click ‘Profile’
in configuration utility:
Profile manager will appear. Click plus sign
to add a new profile.
2. Please name the profile in ‘Profile Name’ field, and select the AP you wish
to connect in ‘SSID’ dropdown list, then click right arrow .
If you’re connecting to a network device using AD-HOC connection method,
select ‘Ad Hoc - Connect to other computers’ first.
3. Select this AP’s authentication and encryption method from dropdown list,
then click right arrow .
4. Input passphrase key here (or WEP key, if required), then click right arrow
:
5. Check this box if you wish to enable pre-logon connection. When this
feature is enabled, wireless network connection will be established before
you logon Windows so you can authenticate yourself against network
server. If you don’t need this, you can leave this box unchecked. Click right
arrow
to continue.
6. The profile will be saved in the list:
You can repeat step 2 to 6 to setup more profiles of wireless connection.
When you wish to connect to a certain wireless access point, click ‘Active’
button (as indicated above).
A check mark
will be displayed beside active profile.
2-3-2 Remove an existing profile
When you no longer need an existing profile, just select it from the list and
click ‘Delete’
button.
If the profile you wish to delete is active now, you’ll be prompted to confirm
deletion:
To delete anyway, click ‘OK’; to cancel, click
mark.
2-3-3 Edit an existing profile
If you have added a profile before, and you wish to change the content of the
profile, you can use this function. Please select a profile from the list first, then
click ‘Edit’
button.
You’ll be provided with the contents of selected profile; you can edit them and
save changes.
2-3-4 Import / Export profile
If you need to move your wireless settings to another computer, or you just
want to make a backup, you can use import / export function to make a copy,
or restore current profile.
To backup a profile, click ‘Export’
:
You’ll be prompted to select a place to save profile setting file. Select a folder
in your computer and name the profile, then click ‘Save’.
To recall previously-saved profiles, click ‘Import’
:
Select a profile (file with .prof extension), and click ‘Open’ Please note that this
will overwrite any existing profile(s).
2-3-5 WPS Profile Setup
WPS (Wi-Fi Protected Setup) is a new, convenient way to setup secured
wireless connections. You only need to push a button or input a set of 8-digit
random number, and you can setup a secure connection between wireless
devices, like what a professional wireless expert can do.
To use WPS profile, you have to make sure the access point you wish to
connect supports WPS first. You can discover if an access point is
WPS-capable or not by site-survey:
In this list, there are ten access points support WPS, which are indicated by
icon.
You can still establish secured connection with WPS-capable access points in
conventional way. To establish WPS-style connection, click ‘Add WPS profile’
button:
You’ll be prompted to select WPS method and WPS AP:
To use PIN (8-digit or 4-digit random number) to setup WPS, select ‘PIN /
numeric code’, and you have to select an AP from ‘WPS AP List’ dropdown
menu; to establish connection by Push-Button Configuration (PBC), you don’t
have to select an AP from ‘WPS AP List’ dropdown list.
Note: This device follows WPS 2.0 Standard Specification to allow
inputting 4-digit PIN code, pls. make sure your Wireless Router or
Access Point supports WPS 2.0 accordingly, or use 8-digit PIN as usual.
You can also check ‘Auto’ box and configuration utility will select a correct
WPS-capable AP to connect when in PIN / numeric code mode.
Click right arrow
to continue.
2-3-5-1 PBC mode WPS configuration
When you want to use ‘PBC’ mode:
Click ‘Start PBC’ button:
Now, please push the WPS button on the access point (a physical button or a
software button in its configuration menu - please refer to access point’s user
manual) within 2 minutes.
2-3-5-2 PIN mode WPS configuration
There are two roles in PIN mode WPS configuration: registrar and enrollee.
Registrar is the one who waits for incoming WPS request, and enrollee is the
one who searches for WPS registrar and will attempt to connect it.
The WPS role of two devices should not be same: When one device is
registrar, the other one must be enrollee, and vice versa.
To setup WPS connection by PIN, select ‘PIN / numeric code’, then click right
arrow.
There will be a menu displaying 8-digit WPS PIN code on the configuration
menu, please get this number. Please remember the number will become
invalid after a short period of time (2 minutes or so).
Select ‘Enrollee’ in ‘Config mode’ dropdown list, and input PIN code in ‘Pin
Code’, then click right
arrow.
Click ‘StartPIN’ to begin WPS connection, please be patient. You’ll be
prompted when WPS connection is established successfully; if you received
an error, you can try again, but please remember to make sure the PIN you
obtained from access point is still valid.
2-4 View Link Status
You can check the status of active wireless connection by clicking ‘Link
Information’
button:
A new window will appear:
There are 3 kinds of link information:
a. Link status
Displays the status of active connection.
b. Throughput
Displays the throughput of active connection.
c. Statistics
Displays the statistics of active connection. Select ‘Transmit’ or ‘Receive’ to
switch displaying statistics of transmitted and received data packets.
To reset counters, click
2-5 Advanced Settings
Click ‘Advanced’
button to show advanced configuration menu. In this
menu, you can configure some advanced wireless settings.
Normally you don’t need to change these settings to establish wireless
connection. Only change these settings when you know what you’re doing and
you really need these changes.
2-5-1 ‘Advanced’ menu
You can configure wireless frequency and available radio channels here.
CHAPTER III: Soft-AP Function
Excepting become a wireless client of other wireless access points, this
wireless card can act as a wireless service provider also! You can switch this
wireless card’s operating mode to ‘AP’ mode to simulate the function of a real
wireless access point by software, and all other computers and wireless
devices can connect to your computer wirelessly, even share the internet
connection you have!
Please follow the instructions in following chapters to use the AP function of
your wireless card.
3-1 Switch to AP Mode and Station Mode
The operating mode of the wireless card is ‘Station Mode’ (becoming a client
of other wireless access points) by default. If you want to switch to AP mode,
please right-click configuration utility icon, and click ‘Switch to AP Mode’.
(Windows XP Only)
You’ll see the configuration utility’s icon switched to ‘AP’ icon.
Notice: If you receive windows firewall (or other firewalling software) warns
you about access point utility, please click ‘Unblock’ (or similar), or software
AP will not function normally.
To launch AP manager, right-click configuration utility’s icon, and select
‘Launch Config Utilities’.
The soft-AP configuration utility will appear, along with the status of software
AP:
3-2 Configure AP
To use software AP, you need to configure it first to accept incoming wireless
connections. Click ‘Config AP’
button to continue.
You have to input the SSID of this software AP first:
Input SSID in ‘SSID’ field. If you wish to hide SSID so only clients who know
your actual SSID can get connected, check ‘Hide SSID’ box.
You can also change wireless operating mode by ‘Wireless Mode’ dropdown
menu. When you finish, click right arrow
.
In this page, you can select the country region of this software AP. Different
country has different radio regulation and therefore it would be illegal to use
certain channel (frequency) in some countries. Please select a correct country
region to avoid legal problem.
Note: You may not be able to change this option in some countries due
to legal requirements.
You can also select wireless channel of this software AP by ‘Channel’
dropdown list. If you wish to enable 40MHz Bandwidth capability, check
‘Enable 40 MHz Bandwidth’ box.
When you finish, click right arrow
.
In this page, you have to select the authentication and encryption method of
this software AP.
Available ‘Authentication’ options are:
Open: No security. Anyone who found this AP can get connected.
Shared: Use shared key authentication (WEP).
WPA-PSK: Use WPA-PSK authentication.
WPA2-PSK: Use WPA2-PSK authentication.
WPA-PSK / WPA2-PSK: Allows both WPA-PSK and WPA2-PSK
authentication.
Available ‘Encryption’ options are (This menu will vary when you select
different authentication method):
Not Encryption: No security
WEP: Use WEP (Wired Equivalent Privacy) encryption.
TKIP: Use TKIP encryption.
AES: Use AES encryption.
When you finish, click right arrow
.
In this page, you can configure WEP / WPA passphrase (password).
For WEP:
Select default Tx Key (normally you can just use Key 1), Key Format (Hex
characters or ASCII characters), and input WEP key.
If you select Hex key format, input 10 or 26 characters (number 0-9 and
alphabets A-F); if you select ASCII, input 5 or 13 characters (number 0-9 and
alphabets).
For WPA-PSA / WPA2-PSK:
Input WPA-PSK / WPA2-PSK key here. If you wish to change group rekey time
interval, you can change it, but normally you don’t need to change it and
software AP will still work fine.
WPA-PSK / WPA2-PSK key must be 8 to 63 ASCII characters or 64 Hex
characters.
When you finish, click right arrow . After you finish this step, your software
AP is ready and able to accept incoming connection requests.
3-3 Advanced Functionality
To setup advanced software AP functionality, click ‘Advanced’
There are several setup items:
button.
No forwarding among wireless clients: Check this box and every wireless
clients will not be able to communicate with each other.
Beacon Interval (ms): Change wireless radio beacon time interval in
milliseconds. Normally you don’t have to change this setting.
TX Power: Change the wireless radio output power here. Please select a
proper output power and you can avoid some unwanted wireless intruders.
Idle time: The allowed time before proceeding with the authentication.
Normally you don’t have to change this setting.
Click ‘Apply’ button to save changes.
3-4 Access Control
You can allow or disallow certain wireless clients to connect your software AP
by this function. To setup access control, click ‘Access Control List’ button .
Access control list will appear:
First you have to select access control policy:
Disable: No access controlling
Allow All: Only allow clients in the list to establish connection (white list).
Reject All: Rejects all clients in the list to establish connection (black list).
Then you have to input the 12-character MAC address in ‘MAC Address’ field.
You may find the MAC address of a certain network card on itself (something
like a label). Please note that you don’t have to input : (colon) or - (dash)
character between every 2 MAC address characters. Click ‘Add’ to add this
MAC address in the list.
To delete a MAC address in the list, select it and click ‘Delete’ button; to delete
all entries, click ‘Remove All’ button.
Click ‘Apply’ button to save changes.
3-5 Associate List
You can see the list of all wireless clients that connected to this software AP.
Click ‘Connected Devices’ button to show the list.
3-6 About
Click this button to see the version information of software AP configuration
utility.
CHAPTER IV:
Appendix
4-1 Hardware Specification
 Standards: IEEE 802.11a/b/g/n
 Interface: USB 2.0 (USB 1.1 Compatible)
 Frequency Band: 2.4000 ~ 2.4835GHz (Industrial Scientific Medical
Band)
5.1500 ~ 5.8250GHz (subject to local regulations)
 Data Rate: 11b: 1/2/5.5/11Mbps
11g: 6/9/12/24/36/48/54Mbps
11n (20MHz): MCS0-23 (up to 216Mbps)
11n (40MHz): MCS0-23 (up to 450Mbps)
 Securities: WEP 64/128, WPA, WPA2
802.1x Support
 Antenna: Internal Antenna plus external antenna (3T3R, MIMO
technology)
 Drivers: Windows 2000/XP/Vista/7
 LED: Link/Activity
 Dimension: 27.2(H) x 17.2(W) x 87.1(D) mm
 Temperature: 32~104°F (0 ~ 40°C)
 Humidity: 10-95% (NonCondensing)
 Certification: FCC, CE
4-2 Troubleshooting
If you encounter any problem when you’re using this wireless network card,
don’t panic! Before you call your dealer of purchase for help, please check this
troubleshooting table, the solution of your problem could be very simple, and
you can solve the problem by yourself!
Scenario
Solution
I can’t find any wireless 1. Click ‘Rescan’ for few more times and see if
access point / wireless
you can find any wireless access point or
device in ‘Site Survey’
wireless device.
function.
2. Please move closer to any known wireless
access point.
3. ‘Ad hoc’ function must be enabled for the
wireless device you wish to establish a direct
wireless link.
4. Please adjust the position of network card
(you may have to move your computer if
you’re using a notebook computer) and click
‘Rescan’ button for few more times. If you
can find the wireless access point or
wireless device you want to connect by
doing this, try to move closer to the place
where the wireless access point or wireless
device is located.
Nothing happens when 1. Please make sure the wireless network card
I click ‘Launch config
is inserted into your computer’s USB port. If
utilities’
the Realtek configuration utility’s icon is
black, the network card is not detected by
your computer.
2. Reboot the computer and try again.
3. Remove the card and insert it into another
USB port.
4. Remove the driver and re-install.
5. Contact the dealer of purchase for help.
I can not establish
1. Click ‘Connect’ for few more times.
connection with a
2. If the SSID of access point you wish to
certain wireless access
connect is hidden (nothing displayed in
point
The network is slow /
having problem when
transferring large files
‘SSID’ field in ‘Site Survey’ function), you
have to input correct SSID of the access
point you wish to connect. Please contact
the owner of access point to ask for correct
SSID.
3. You have to input correct passphrase /
security key to connect an access point with
encryption. Please contact the owner of
access point to ask for correct passphrase /
security key.
4. The access point you wish to connect only
allows network cards with specific MAC
address to establish connection. Please go
to ‘About’ tab and write the value of
‘Phy_Addess’ down, then present this value
to the owner of access point so he / she can
add the MAC address of your network card
to his / her access point’s list.
1. Move closer to the place where access point
is located.
2. Enable ‘Wireless Protection’ in ‘Advanced’
tab.
3. Try a lower TX Rate in ‘Advanced’ tab.
4. Disable ‘Tx Burst’ in ‘Advanced’ tab.
5. Enable ‘WMM’ in ‘QoS’ tab if you need to
use multimedia / telephony related
applications.
6. Disable ‘WMM – Power Save Enable’ in
‘QoS’ tab.
7. There could be too much people using the
same radio channel. Ask the owner of the
access point to change the channel number.
Please try one or more solutions listed above.
4-3 Glossary
1. What is the IEEE 802.11g standard?
802.11g is the new IEEE standard for high-speed wireless LAN
communications that provides for up to 54 Mbps data rate in the 2.4 GHz
band. 802.11g is quickly becoming the next mainstream wireless LAN
technology for the home, office and public networks.
802.11g defines the use of the same OFDM modulation technique
specified in IEEE 802.11a for the 5 GHz frequency band and applies it in
the same 2.4 GHz frequency band as IEEE 802.11b. The 802.11g
standard requires backward compatibility with 802.11b.
The standard specifically calls for:
A. A new physical layer for the 802.11 Medium Access Control (MAC) in
the 2.4 GHz frequency band, known as the extended rate PHY (ERP).
The ERP adds OFDM as a mandatory new coding scheme for 6, 12
and 24 Mbps (mandatory speeds), and 18, 36, 48 and 54 Mbps
(optional speeds). The ERP includes the modulation schemes found in
802.11b including CCK for 11 and 5.5 Mbps and Barker code
modulation for 2 and 1 Mbps.
B. A protection mechanism called RTS/CTS that governs how 802.11g
devices and 802.11b devices interoperate.
2. 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.
3. What does IEEE 802.11 feature support?
The product supports the following IEEE 802.11 functions:
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CSMA/CA plus Acknowledge Protocol
Multi-Channel Roaming
Automatic Rate Selection
RTS/CTS Feature
Fragmentation
Power Management
4. What is Ad-hoc?
An Ad-hoc integrated wireless LAN is a group of computers, each has a
Wireless LAN card, Connected as an independent wireless LAN. Ad hoc
wireless LAN is applicable at a departmental scale for a branch or SOHO
operation.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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 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.
13. 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).
14. What is WPS?
WPS stands for Wi-Fi Protected Setup. It provides a simple way to
establish unencrypted or encrypted connections between wireless clients
and access point automatically. User can press a software or hardware
button to activate WPS function, and WPS-compatible wireless clients
and access point will establish connection by themselves. There are two
types of WPS: PBC (Push-Button Configuration) and PIN code.
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 device and its antenna must not be co-located or operating in conjunction with any
other antenna or transmitter.
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.
The equipment version marketed in US is restricted to usage of the channels 1-11 only.
R&TTE Compliance Statement
This equipment complies with all the requirements of DIRECTIVE 1999/5/EC 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, Bulgaria, Cyprus,
Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Romania, Slovakia,
Slovenia, 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
Please check the declaration of conformity on www.edimax.com
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