No part of this documentation may be reproduced in any form or by any means or used to
make any derivative work (such as translation, transformation, or adaptation) without
written permission from the copyright owner.
All the other trademarks and registered trademarks are the property of their respective
owners.
Statement of Conditions
The content described in this manual may be improved or changed at any time and it is
subject to be changed without notice.
Manufacturer assumes no responsibility for errors contained herein or for direct, indirect,
special, incidental or consequential damages with the furnishing, performance, or use of
this manual or equipment supplied with it, even if manufacturer of its suppliers have been
advised of the possibility of such damages.
Electronic Emission Notices
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 will accept any interference received, including interference that may
cause undesired operation.
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
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)
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this device must accept any interference received, including interference that may
cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this equipment.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. End users must follow the specific operating instructions
for satisfying RF exposure compliance.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
IEEE 802.11b operation of this product in the U.S.A. is firmware-limited to channels
1 through 11.
This product has been certified in France, Germany, Italy, Spain, Sweden, UK, and US.
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LIMITED WARRANTY
This product is warranted by manufacturer to be free from defects in material and
workmanship for one (1) year from the date of purchase, unless otherwise stated.
During this period if this product is found to be defective in material or workmanship,
manufacturer or one of its authorized service facilities will at its option either repair or
replace this product without charge, subject to the following conditions, limitations and
exclusions:
1. This warranty extends to the original consumer purchaser only and is not
assignable or transferable.
2. This warranty shall not apply to any product which has been subjected to misuse,
abuse, abnormal use, negligence, alteration or accident, or has had its serial
number altered or removed.
3. This warranty does not apply to any defects or damage directly or indirectly
caused by or resulting from the use of unauthorized replacement parts and/or
service performed by unauthorized personnel.
4. This warranty does not apply to the software driver that accompanies this product.
This warranty is made expressly in lieu of all other warranties, expressed or implied,
including but not limited to any implied warranty of merchantability of fitness for a
particular purpose, and all other obligations on the part of Manufacturer provided,
however, that if the disclaimer of implied warranties is ineffective under applicable law,
the duration of any implied warranties arising by operation of law shall be limited to one
(1) year from the date of purchase or such longer period as may be required by applicable
law.
Manufacturer hereby disclaims any and all liabilities for consequential and incidental
damages arising out of or in connection with any breach of this warranty or any other
claim with respect to this product, including but not limited to claims of negligence, strict
liability in tort or breach of contract.
Wireless LAN is local area networking without wires, which uses radio frequencies to
transmit and receive data between PC’s or other network devices. Wireless LAN is able to
configure independent networks and infrastructure networks. The former is suitable for
small or temporary peer-to-peer configurations, and the later is offering fully distributed
data connectivity via micro cells and roaming.
The WLAN CF Card is designed to meet the mobility, performance, security,
interoperability, management, and reliability requirements of IEEE 802.11b high data rate
standard. It is easy to install the WLAN CF Card on various devices with CF Type I card
slot or PCMCIA TYPE II card slot using PCMCIA to Compact Flash adapter. It is able to
communicate with other IEEE 802.11b compatible products to create a wireless LAN in
your office or home.
1.1 Features
Compliant with 11 Mbps 802.11b high-speed specification.
Data rate 11/5.5/2/1 Mbps automatic fallback under noisy environment.
Advanced Power Management for battery saving.
Build PCB patch diversity antennas.
Supports MS Windows 98/Me/2000/XP/CE, and Linux.
Interoperable with IEEE 802.11b compliant equipment.
Supports full mobility and seamless roaming from cell to cell.
Plug-and-play installation and easy client management with utility software
Supports point-to-point and point-to-multipoint access.
Direct Sequence Spread Spectrum (DSSS) technology provides robust,
interference-resistant and secure wireless connection.
Wireless connection without the hassles and cost of cabling.
Greater flexibility to locate or move networked PC’s.
1.2 Applications
Home networking for device sharing - Remote access to corporate network
information email, file transfer and terminal emulation.
Frequently changing environments - Retailers, manufacturers and banks that
frequently rearrange the workplace and change location.
SOHO (Small Office and Home Office) users - SOHO users need easy and quick
installation of a small computer network functions.
Inter-building connection - The wireless building-to-building network installs
quickly, requires no monthly lease fees, and provides the flexibility to reconfigure
easily.
Typical applications include hard-to-wire buildings, campuses, hospitals/medical
offices, warehouse, security huts, exhibition centers, etc.
Temporary LANs for special projects or occasions - Auditors require workgroups
at customer sites. Trade shows, exhibitions, retailers, airline, and shipping
companies need additional workstations for a peak period of data traffic.
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1.3 Wireless LAN System
1.3.1 802.11 Ad-Hoc Configuration
An 802.11 Ad-Hoc wireless LAN is a group of computers, each equipped with one
WLAN CF Card, connected as an independent wireless LAN. Computers in a specific
802.11 Ad-Hoc wireless LAN must be configured at the same radio channel. 802.11
Ad-Hoc wireless LAN is applicable to a departmental scale for a branch or SOHO
operation.
Figure 1-1 802.11 Ad-Hoc Configuration
1.3.2 Infrastructure Configuration
An integrated wireless and wired LAN is called an infrastructure configuration. A group
of WLAN CF Cards and an Access Point (AP) is called a Basic Service Set (BSS). Each
WLAN CF Card in this BSS can be linked to any computer in the wired LAN
infrastructure via the AP.
Infrastructure configuration not only extends the accessibility of a WLAN CF Card to the
wired LAN, but also doubles the effective wireless transmission range between two
WLAN CF Cards.
BSS ID is, in essential, the ID of each independent WLAN CF Card. All WLAN CF
Cards configured without roaming options in this independent BSS must be configured
with BSS ID of that AP. You may need to check BSS ID of your AP by using its vendor
supplied program.
Infrastructure configuration is applicable to enterprise scale for wireless access to central
database, or wireless application for mobile workers.
Two APs can be used as a point-to-point link between two LANs. LAN interconnection is
applicable to a wireless backbone between buildings.
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Figure 1-2 Infrastructure Configuration
The infrastructure configuration supports roaming capability for mobile workers. More
than one BSS can be jointly configured as an Extended Service Set (ESS). On account of
a continuous connection to the network, users within this ESS can roam freely. All
WLAN CF Cards and APs within one ESS must be configured with the same ESS ID.
Before setting up an ESS for roaming, it would be helpful to achieve good performance
by choosing a feasible radio channel and right places for APs.
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Figure 1-3 Seamless Roaming
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2. INSTALLATION
Use the procedures described in this chapter to install your WLAN CF Card under MS
Windows98/Me /2000 /XP, and Linux.
(Note that unplug the WLAN CF Card from your device before upgrading the new
driver/utility, otherwise you may have trouble during installation process.)
2.1 Product Kit
Before starting installation, please make sure the WLAN CF Card package you purchased
includes the following items:
1) WLAN CF Card.
2) CD-ROM (including Driver/Utility and User’s Manual).
3) Quick Start Guide.
If anything is missing, please contact your vendor.
2.2 PC’s Minimum Requirements
To install the WLAN CF Card successfully, your PC (notebook, desktop, or PDA) should
meet the following minimum requirements:
1) A CF or PCMCIA slot compliant with Release 2.1 of the PCMCIA
specification.
2) Windows 98, Me, 2000, XP or Linux operating system.
3) Minimum 10 Mbytes free disk space for installing the driver and the utility
program.
2.3 Installing the Utility and Driver
Depending on the operating system you use, please select one of the sections (2.3.1~2.3.4)
and follow the steps to install the Utility and Driver. Then go to Section 3 to continue the
procedure.
Note: Please do not plug your WLAN CF Card until the setup procedure has been
completed.
2.3.1 Under MS Windows 98/Me/2000/XP
Please follow the steps below to install the utility and driver.
1) Insert the supplied CD-ROM in the CD-ROM drive.
2) The InstallShield Wizard should start automatically. If Autorun is disabled in
your Windows settings, you will need to go to the Windows “Start” button,
choose “Run” and type “D:\setup.exe” in the text box, where D is the drive
letter of your CD-ROM drive.
3) Follow the InstallShield Wizard to install the driver and utility.
4) Reboot your PC after completing the installation process. (Recommended)
5) Plug your WLAN CF Card. The “Add New Hardware Wizard” automatically
loads the driver, and then a new application (the Configuration & Monitor
Utility) icon will be displayed in the task bar.
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6) Go to Section 3 for Configuration.
Note: In the MS Windows 2000/XP installation procedure, an extra window prompts you
to select the options whether you would like to install the “Digital Signature Not Found”
or not. You can safely select “YES”.
2.3.2 Under MS Windows CE (3.0)
Please follow the steps below to install the utility and driver.
1) Insert the supplied CD-ROM in the CD-ROM drive.
2) Click “Start” button, choose “Run”, and type “D:\wince\3.0\setup.exe” in the
text box, where D is the drive letter of your CD-ROM drive.
3) Follow the InstallShield Wizard to install the driver and utility.
4) Insert the WLAN CF card. When the CF card is installed, complete the
installation process. A pop-up window that has two the TCP/IP options will
automatically appear as shown in Figure 2-1.
Figure 2-1 A typical Screen with TCP/IP Options
5) Use the first option if you have plans to connect to an Access Point (become
associated) that is connected to a network, where a DHCP Server is available,
and then a unique IP Address will be automatically assigned to your PC card.
Select the second option and assign a unique IP Address to your PC card in
any other case.
6) Go to Section 3 for Configuration.
2.3.3 Under MS Windows CE (4.2)
File description
There are 5-directory under /wince/4.2:
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Each of them is represented the type of processor for your Pocket PC. If you do not know
your processor type, contact your local dealers.
Installation
Connect the sync cable (USB or serial connector) from the device connector of Pocket PC
to your computer.
Copy the zd1201c.dll and WS01CPH.bin from CD to your Pocket PC directory
\Windows.
Insert the CF card into the Compact Flash card slot, a pop-up window will be prompted
requesting the driver name, and then input the string “zd1201c”.
If the driver is loaded successfully, the other pop-up window will be shown up to let you
setup the wireless LAN settings. Alternatively, you can double click the small network
icon at the right hand site corner of screen.
Configuration (The Platform must contain “Wireless LAN 802.11,” “Automatic
Configuration” and “802.1x.”)
After double click the network icon, you will see at least two pages. One is “IP
Information,” the other is “Wireless Information.”
Wireless Information Page:
a. Show the SSID currently found
b. Connection status
c. Signal Strength
Select the SSID, press “Connect,” a window will pop up to let you setup the
WEP encryption. For more settings, you have to check Mircosoft
documentation.
IP Information Page:
The IP information will be indicated in this page, you may press “Renew” button
to get the new IP.
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2.3.4 Under Linux
Please follow the steps below to install the utility and driver.
1) Copy the pcmcia.sh and setup.sh files from CD to a directory (anywhere you
like).
2) Unpack the zdapdrv-date.tar.gz package (anywhere you like).
#tar xvzf zdsta-3904.tar.gz
3) In the zdsta-1.0.4_mdk3 directory, run:
# make config
[Notice]
The following questions will be prompted when you execute “make config”. If the default answer
is the same with your system configuration, you can just press the “Enter” to select the default
answer.
Build PCMCIA Card Services (_cs) driver? (y/n): y
Build native PCI (_pci) driver? (y/n): n
Linux source directory [/usr/src/linux]: /usr/src/linux-w.x.y-z
(Note: The w, x, y, and z are represented your Linux kernel version. After enter the source
directory, you may have the following warning messages.)
WARNING: .config not present in kernel source tree. This will screw up modversions detection
and build optimizations. Is this a RedHat kernel? Workarounds enabled. For an optimized build,
copy over the relevant file from /usr/src/linux-2.4/configs/ to /usr/src/linux-2.4/.config
If the warning messages are shown, it stands for that there is no “.config” file in your Linux
kernel source directory. You may solve this problem by the following methods. Copy the relevant
configuration file from the /usr/src/linux-2.4/configs/ to /usr/src/linux-2.4/.config (The
/usr/src/linux-2.4/ is the Linux kernel directory of your system.).
e.g.
Alternatively, change the directory to the Linux kernel directory and type “make config” or
“make menuconfig” to generate the .config file. Under the Xwindows environment (including
GNOME and KDE), you can type “make xconfig” under the Linux kernel directory to generate
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the .config file.
Pcmcia-cs source dir [/usr/src/pcmcia-cs-3.1.34]:/usr/src/pcmcia-cs-3.1.34
Prefix for build host compiler? (rarely needed) []:
# make all
# make install
4) Plug your Wireless CF Card into your device.
5) PCMCIA NOTE
If you are installing the PCMCIA driver after the installation run:
#/etc/rc.d/init.d/pcmcia restart
6) Getting Start
#chmod +x pcmcia.sh
#chmod +x setup.sh
[Under Infrastructure Mode]
#./pcmcia.sh start
#./setup.sh opensystem (or ./setup.sh sharedkey)
[Notice]
Before issue this command, you have to modify the “setup.sh” file in order to perform the option
of “opensystem” and “sharedkey.” Please go to the section 3.3.
#./pcmcia.sh sitesurvey
[Notice]
If you want to perform the site survey function, this command can be indicated how many APs are
in your network.
[Notice]
Before issue this command, you have to modify the “setup.sh” file in order to perform the option
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of “opensystem” and “sharedkey.” Please go to the section 3.3.
#ifconfig wlan0 192.169.1.222 (Ad-HOC mode use only)
#ifconfig –a (check the IP of your CF card)
#./pcmcia.sh sitesurvey
[Notice]
If you want to perform the site survey function, this command can be indicated how many APs are
in your network.
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3. CONFIGURATION
The Configuration & Monitor Utility is a powerful application that helps you to configure
the WLAN CF Card and monitor the statistics of the communication. Unlike the standard
method of configuring the card via the operating system utilities (e.g. Control Panel), this
application permits the dynamic modification of configuration parameters while the card
is operating. This application also offers more configuration options.
3.1 Under MS Windows 98/Me/ 2000/XP
The Configuration & Monitor Utility appears as an icon in the task bar of Windows while
the card is running (see Figure 3-1). You can open it by double-clicking on this icon.
Figure 3-1 Configuration & Monitor Utility Icon
Status -- A typical screen of the application in infrastructure mode is shown in Figure 3-2.
There are some configurations that can be set shown on the screen (Status, Encryption,
Site Survey, Advance, Profile and Info). You may see Signal Strength, Link Quality and
Tx/Rx in Figure 3-2. By clicking “Change” button, you can change operating mode from
Infrastructure to Ad-Hoc as you want. (Figure 3-3)
Figure 3-2 Monitor Utility in Infrastructure Mode.
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After changing the Operating mode, Channel, SSID, and Tx Rate, click “Submit”
button to save the settings you have set.
Figure 3-3 CF-Card setting
Site Survey -- Click “Site Survey” button, and then click “Re-Scan” in order to search the
APs. By clicking the “Hide” button, you may veil the configuration tool in Windows tool
bar. The information of SSID, channel, signal, WEP and type will be displayed on screen
for users to select one of the best sites to connect.
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Figure 3-4 Site Survey
Double clicking one of AP such as CF-Card, a pop-up Window, “Use Previous WEP
setting”, will be shown on screen (Figure 3-5). It means that you have specified a WEP
encryption network. If you want to use the previous WEP settings, click “Yes” button. If
you have the new WEP key settings, go to “Encryption” to modify the configuration
settings.
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Figure 3-5 WEP key Settings
Encryption -- By clicking “Encryption” in the manual, you can set four different WEP
keys and specify which one of them to be used. Choose any of the available WEP keys (1
to 4) as shown in Figure 3-6. Keep in mind that the WEP keys must be in HEX format.
Press the “Submit” button at the bottom of the screen to take effect your changes. The
following example is a setting for 64-bit key length in shared key mode, and the WEP key
in “Key#1” is encrypted.
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Figure 3-6 Encryption
Advance -- By clicking the “Advanced setting” bottom, you can change advanced
configuration settings, such as the Power Saving Mode, Fragmentation Threshold, and
RTS/CTS Threshold (Figure 3-7). Figure 3-7 shows the recommended configuration for
the advanced settings.
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Figure 3-7 Advance Settings
Note: The WLAN CF Card has an auto-detection feature therefore it automatically selects the Preamble
Type depending on the Access Point Preamble type. Move the slide bars to enable the parameters of
Fragmentation and RTS/CTS Threshold with your mouse and then use right and left ar row keys of y our
keyboard to select an exact number.
Profile -- Select the default profile name for default settings or enter a name such as
“new-profile” in left hand site edit box, and then click ”Save” to save the current settings
(Figure 3-8). Select the “Load” to get the profile you need.
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Figure 3-8 Profiles Settings
Info -- By clicking “Information” button, you can check the basic information about the
versions of Driver, Firmware, Utility and MAC Address.
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Figure 3-9 Information
3.2 Under MS Windows CE (3.0)
When the application is opened the following options are available if you press the menu
button:
- General
- Scan
- Wep
- Monitor
- About
Scan/Wep/General -- Use the stylus to click Scan button, tap Scan again button, select
the specific AP you want, and then click Apply to launch the wireless connections (Figure
3-10). If you have WEP key settings among APs, tap Wep button, tap the input panel
icon, enable the Wep Enable button, and then input the keys (64-bit and 128-bit WEP
encryption accepted) (Figure 3-11). After you finish the settings, tap Set WEP Key. Go
the General to see the connection status (Figure 3-12).
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Figure 3-10 Scan
Figure 3-11 WEP
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Figure 3-12 General
Monitor -- To check the incoming and outgoing packets, tap the Monitor button (Figure
3-13).
Figure 3-13 Monitor
About -- Find information about Wireless LAN Card and your device (Figure 3-14).
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Figure 3-14 About
3.3 Under Linux
The setup.sh file can be modified to Ad-HOC or Infrastructure mode as following:
[Infrastructure mode in “opensystem” or “sharedkey”]
If your SSID is named “DJ” and you want to set to Infrastructure mode, please follow the
example A. If your option is “sharedkey”, the key index number should be from 0 to 3.
00:11:22:33:44 is the password of your AP.
Please modify the red items in the shell script.
(A)
#!/bin/sh
if [ $1 = "opensystem" ]; then
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11ExcludeUnencrypt ed=false
/sbin/wlanctl-ng wlan0 dot11req_mibset mibatt ribute=dot11PrivacyInvoked=fal se
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibattribut e=p2CnfPortType= 1
#0 for IBSS mode (Ad-Hoc)
#1 for BSS mode (Infrastrusture)
/sbin/wlanctl-ng wlan0 lnxreq_autojoin ssid=DJ authtype=opensystem
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else
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11WEPDefaultKeyID= 0
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11ExcludeUnencry pted=true
/sbin/wlanctl-ng wlan0 dot11req_mibset mibatt ribute=dot11Privacy Invoked=true
/sbin/wlanctl-ng wlan0 dot11req_mibset mibatt ribute=dot11WEPDefaultKey0=00:11:22:33:44
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibattribut e=p2CnfPortType= 1
#0 for IBSS mode (Ad-Hoc)
#1 for BSS mode (Infrastrusture)
/sbin/wlanctl-ng wlan0 lnxreq_autojoin ssid=DJ authty pe=sharedkey
fi
[Ad-HOC mode in “opensystem” or “sharedkey”]
If your SSID is named “DJ” and you want to set to Ad-HOC mode, please follow the
example B. If your option is “sharedkey”, the key index number should be from 0 to 3.
00:11:22:33:44 is the password of your WEP key.
(B)
#!/bin/sh
if [ $1 = "opensystem" ]; then
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11ExcludeUnencrypt ed=false
/sbin/wlanctl-ng wlan0 dot11req_mibset mibatt ribute=dot11PrivacyInvoked=fal se
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibattribut e=p2CnfPortType= 0
#0 for IBSS mode (Ad-Hoc)
#1 for BSS mode (Infrastrusture)
/sbin/wlanctl-ng wlan0 lnxreq_autojoin ssid=DJ authtype=opensystem
else
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11WEPDefaultKeyID= 0
/sbin/wlanctl-ng wlan0 dot11req_mibset m ibatt ribute=dot11ExcludeUnencry pted=true
[IP Setting]
If you are using RedHat distribution Linux, edit the
/etc/sysconfig/network-scripts/ifcfg-wlan0 file in order to set up the IP address during the
booting process. The following 2 examples indicate the usage of fixed IP and HDCP.
Japan: 14 (3 non-overlapping)
Host Interface PC Card 95 , PCMCIA type II 16 bit
Transmit power +15dBm (Typ.)
Receive sensitivity -83dBm (Typ.) for 11Mbps; -86dBm (Typ.) for 5.5Mbps;
-89dBm (Typ.) for 2Mbps; -91dBm (Typ.) for 1Mbps (@BER
10E-5)
Software
Driver Support MS Windows 98/Me/2000/XP/Linux/Windows CE
Utility User setup and diagnostic tool
Mechanical
Dimensions 60 x 43 x 7 mm
U.S.: FCC Part 15, sections 15.247, 15.205, 15.209 EMC
Europe: ETS 300 328, ETS 300 826, CE Marked
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5. GLOSSARY
The following glossary is for your reference only, and is not need for the installation of
your Wireless LAN CF Card.
Wireless Access Point (AP) – Any entity that has station functionality and provides access
to the distribution services via the wireless medium (WM) for associated stations.
Ad-Hoc – A network is composed solely of stations within mutual communication range
of each other via the wireless medium (WM). An ad hoc network is typically created in a
spontaneous manner. The principal distinguishing characteristic of an ad hoc network is
its limited temporal and spatial extent. These limitations allow the act of creating and
dissolving the ad hoc network to be sufficiently straightforward and convenient so as to be
achievable by non-technical users of the network facilities; i.e., no specialized technical
skills are required and little or no investment of time or additional resources is required
beyond the stations that are to participate in the ad hoc network. The term ad hoc is often
used as slang to refer to an independent basic service set (IBSS).
BSS (Basic Service Set) – An AP associated with several wireless stations.
ESS (Extended Service Set) – More than one BSS can be configured as an Extended
Service Set. An ESS is basically a roaming domain.
Ethernet – A popular local area data communications network, originally developed by
Xerox Corp., which accepts transmission from computers and terminals. Ethernet operates
on 10 Mbps baseband transmission over shielded coaxial cable or over shielded twisted
pair telephone wire.
Fragmentation Threshold – Indicates how much of the network resources is devoted to
recovering packet errors. The value should remain at its default setting of 2,436. If you
experience high packet error rates, you can decrease this value but it will likely decrease
overall network performance. Only minor modifications of this value are recommended.
Infrastructure – The infrastructure includes the distribution system medium (DSM), AP,
and portal entities. It is also the logical location of distribution and integration service
functions of an extended service set (ESS). An infrastructure contains one or more APs
and zero or more portals in addition to the distribution system (DS).
IEEE – Institute of Electrical and Electronic Engineering
LAN – Local Area Network
Roaming – A function that allows one to travel with a mobile end system (wireless LAN
mobile station, for example) through the territory of a domain (an ESS, for example)
while continuously connecting to the infrastructure.
RTS (Request To Send) Threshold –It should remain at its default setting of 2,347. A
preamble is a signal used to synchronize the transmission timing between two or more
systems. A series of transmission pulses are sent before the data to indicate that “someone
is going to transmit data.” This ensures that systems receiving the information correctly
when the data transmission starts.
SOHO – Small Office Home Office
SSID – Service Set Identifier
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Wired Equivalent Privacy (WEP) – The optional cryptographic confidentiality algorithm
specified by IEEE 802.11 is used to provide data confidentiality that is subjectively
equivalent to the confidentiality of a wired local area network medium that does not
employ cryptographic techniques to enhance privacy.
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