Smc 2671W User Manual

EZ Connect
TM
2.4 GHz Wireless Ethernet Adapter User Guide
38 Tesla Irvine, CA 92618 Phone: (949) 679-8000
October 2003
150000030200E R01 F1.0
Copyright
Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.
Copyright © 2003 by
SMC Networks, Inc.
38 Tesla
Irvine, CA 92618
All rights reserved.
Trademarks:
SMC is a registered trademark; and EZ Connect is a trademark of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.
C
OMPLIANCES
FCC - Class B
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 instructions, may cause harmful interference to radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected
• Consult the dealer or an experienced radio/TV technician for help FCC Caution: To assure continued compliance, (example - use only shielded
interface cables when connecting to computer or peripheral devices) any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
IMPORTANT NOTE: FCC Radiation Exposure Statement
FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters (8 inches) between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Industry Canada - Class B
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of the Department of Communications.
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C
OMPLIANCES
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans la norme sur le matériel brouilleur: “Appareils Numériques,” NMB-003 édictée par le ministère des Communications.
EC Conformance Declaration - Class B
SMC contact for these products in Europe is:
SMC Networks Europe, Edificio Conata II, Calle Fructuós Gelabert 6-8, 2 08970 - Sant Joan Despí,
Barcelona, Spain.
This information technology equipment complies with the requirements of the R&TTE Directive 99/5/EC as well as the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied:
RFI Emission:
Immunity: • Product family standard according to EN 55024:1998
LVD: • EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997) MDD: • IEC 60601-1
• Limit class B according to EN 55022:1998, IEC 60601-1-2 (EMC, medical)
• Limit class B for harmonic current emission according to EN 61000-3-2/ 1995
• Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3/1995
• Electrostatic Discharge according to EN 61000-4-2:1995 (Contact Discharge: ±4 kV, Air Discharge: ±8 kV)
• Radio-frequency electromagnetic field according to EN 61000-4-3:1996 (80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV)
• Surge immunity test according to EN 61000-4-5:1995 (AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)
• Immunity to conducted disturbances, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Power frequency magnetic field immunity test according to EN 61000-4-8:1993 (1 A/m at frequency 50 Hz)
• Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction @5000 ms)
o
, 4a,
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C
OMPLIANCES
Safety Compliance
Underwriters Laboratories Compliance Statement
Important! Before making connections, make sure you have the correct cord set.
Check it (read the label on the cable) against the following:
Operating Voltage Cord Set Specifications
120 Volts UL Listed/CSA Certified Cord Set
Minimum 18 AWG Type SVT or SJT three conductor cord Maximum length of 15 feet Parallel blade, grounding type attachment plug
rated 15 A, 125 V
240 Volts (Europe only) Cord Set with H05VV-F cord having three
conductors with minimum diameter of 0.75 mm IEC-320 receptacle Male plug rated 10 A, 250 V
The unit automatically matches the connected input voltage. Therefore, no additional adjustments are necessary when connecting it to any input voltage within the range marked on the power adapter.
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iii
C
OMPLIANCES
Wichtige Sicherheitshinweise (Germany)
1. Bitte lesen Sie diese Hinweise sorgfältig durch.
2. Heben Sie diese Anleitung für den späteren Gebrauch auf.
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung.
4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.
5. Das Gerät ist vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder Fallen könnte Beschädigungen hervorrufen.
7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte auch nichts auf der Leitung abgestellt werden.
10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.
11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.
12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.
13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.
14. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu überprüfen: a.Netzkabel oder Netzstecker sind beschädigt. b.Flüssigkeit ist in das Gerät eingedrungen. c. Das Gerät war Feuchtigkeit ausgesetzt. d.Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert
oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen. e.Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt. f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
15. Stellen Sie sicher, daß die Stromversorgung dieses Gerätes nach der EN 60950 geprüft ist. Ausgangswerte der Stromversorgung sollten die Werte von AC 7,5-8 V, 50-60 Hz nicht über oder unterschreiten sowie den minimalen Strom von 1 A nicht unterschreiten.
Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70 dB(A) oder weniger.
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T
ABLE OF
EZ Connect™ 2.4 GHz Wireless Ethernet
Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Package Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hardware Description . . . . . . . . . . . . . . . . . . . . . . . 3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . 7
System Configuration . . . . . . . . . . . . . . . . . . . . . . . 8
EZ Installation Wizard . . . . . . . . . . . . . . . . . . . . . . . 9
Using IPCONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Utility Installation and Configuration . . . . . . . . . 11
Using the Configuration Utility . . . . . . . . . . . . . . . . . . . . . . 12
Utility Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
IP Config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Statistic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wireless Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
About . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
C
ONTENTS
Configuring Your IP Address . . . . . . . . . . . . . . . . 25
Windows 98/Me . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Windows XP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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T
ABLE OF CONTENTS
Web Management . . . . . . . . . . . . . . . . . . . . . . . . .33
Browser Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Disable Proxy Connection . . . . . . . . . . . . . . . . . . . . . . . 33
Internet Explorer (5.5 or above) in Microsoft Windows . 33
Internet Explorer in Macintosh . . . . . . . . . . . . . . . . . . . . 33
Navigating the Web Browser Interface . . . . . . . . . . . . . . . 34
Making Configuration Changes . . . . . . . . . . . . . . . . . . . 34
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
MAC Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Network Configuration and Planning . . . . . . . . . 52
Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Ad Hoc Wireless LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Infrastructure Wireless LAN . . . . . . . . . . . . . . . . . . . . . . 53
Infrastructure Wireless LAN for Roaming Wireless
PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
A Wireless LAN with Internet Access . . . . . . . . . . . . . . . 55
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 56
SMC Networks 802.11b Wireless Product
Maximum Distance Table . . . . . . . . . . . . . . . . . . . . . . . . . 57
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
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EZ C
W
IRELESS

Introduction

SMC’s EZ Connect 2.4 GHz Wireless Ethernet Adapter (SMC2671W) can function as:
an Ethernet adapter, providing a wireless connection via an RJ-45 connection to devices such as Microsoft Xbox and Ethernet ready embedded devices
a standard IEEE 802.11b access point
a wireless range extender, allowing you to effectively extend
the coverage of another SMC2671W that is configured to operate in Access Point mode
This solution offers fast, reliable wireless connectivity with considerable cost savings over wired LANs (eliminates long-term maintenance overhead for cabling). Just install enough wireless access points to cover your network area, plug wireless cards into your notebooks or install wireless adapters into your desktops, and start networking.
ONNECT
E
THERNET
2.4 GH
A
DAPTER
Z
Use this device in conjunction with SMC’s EZ Connect Wireless Cards to create an instant network that integrates seamlessly with Ethernet LANs. Moreover, moving or expanding your network is as easy as moving or installing additional access points – no wires!
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EZ C
ONNECT
™ 2.4 GHZ W
IRELESS ETHERNET ADAPTER

Package Checklist

The EZ Connect 2.4 GHz Wireless Ethernet Adapter package includes:
One EZ Connect 2.4 GHz Wireless Ethernet Adapter (SMC2671W)
One 5 VDC power adapter
Installation CD containing this User Guide, EZ Installation
Wizard, and Utility program
One RJ-45 cable
Please register this product and upgrade the product warranty on SMC’s web site at http://www.smc
Inform your dealer if there are any incorrect, missing, or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the product in case there is a need to return it.
.com
2
H
ARDWARE
The Wireless Ethernet Adapter supports 1, 2, 5.5 and 11 Mbps half-duplex connections to Ethernet networks. This device is fully compliant with 2.4 GHz DSSS CSMA/CA wireless networking as defined in IEEE 802.11b. It can be connected via an RJ-45 connection to devices such as Nintendo GameCube, Microsoft Xbox, Sony PlayStation II, and Ethernet ready embedded devices. It can also function as an IEEE 802.11b Access Point or as a Range Extender (see “Introduction” on page 1).
D
ESCRIPTION
Power Connector
RJ-45 Port
Figure 1. Rear Panel
Item Description
Power Inlet Connect the included power adapter to this inlet.
Warning: Using the wrong type of power adapter may damage your adapter.
LAN Port Fast Ethernet port (RJ-45). Connect device (such as a PC, hub
MDI/MDIX Switch
Note: If you use the RELOAD button at the bottom, the Wireless
or switch) on your local area network to this port.
Press down the switch to connect to a network device with a straight-through twisted-pair cable; otherwise, connect to the network device with (MDI-X) station ports at both ends by suing crossover cabling.
Ethernet Adapter performs a power reset. If the button is held depressed for over 5 seconds, all the LEDs will illuminate and the factory settings will be restored.
MDI/MDIX Switch
3
H
ARDWARE DESCRIPTION

Applications

EZ Connect wireless products offer a fast, reliable, cost-effective solution for wireless Ethernet client access to the network in applications such as:
Video Game Systems
Provides wireless Internet access for users of video game systems such as Nintendo GameCube, Microsoft Xbox and Sony PlayStation II
Remote access to corporate network information
E-mail, file transfer, and terminal emulation
Difficult-to-wire environments Historical or old buildings, asbestos installations, and open areas where wiring is difficult to employ
Frequently changing environments
Retailers, manufacturers, and banks which frequently rearrange the workplace or change locations
Temporary LANs for special projects or peak periods
Trade shows, exhibitions, and construction sites that need a temporary setup. Retailers, airline, and shipping companies that need additional workstations for peak periods. Auditors who require workgroups at customer sites
Access to databases for mobile workers
Doctors, nurses, retailers, or white-collar workers who need access to databases while being mobile in a hospital, retail store, in an office, or on a campus
SOHO users
SOHO (Small Office and Home Office) users who need easy and quick installation of a small computer network
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LED Indicators

The Wireless Ethernet Adapter includes three status LED indicators, as described in the following figure and table.
Figure 2. Front Panel
LED Status Description
Wireless Link
Ethernet Status
Power (PWR) On (Red) Power is being supplied.
TX/RX Flashing (Green) The device is transmitting or receiving
LNK/ ACT
On (Orange) The device has established a valid
On (Green) The device has established a valid
Flashing The device is transmitting or receiving
data through wireless links.
10Mbps Ethernet link.
100Mbps Ethernet link.
data on the Ethernet LAN
LED I
NDICATORS
5
H
ARDWARE DESCRIPTION

System Requirements

Before you install the Wireless Ethernet Adapter, be sure you have met the following requirements:
An AC power outlet (100~240 V, 50~60 Hz)
An available RJ-45 (UTP) port on an Ethernet hub or switch
802.11b compliant wireless Ethernet adapters with TCP/IP
protocols installed
TCP/IP network protocol installed on each PC that needs to access the Internet.
A web browser, such as Microsoft Internet Explorer 5.5 or above installed on one PC at your site for configuring the Wireless Ethernet Adapter.
6
H
ARDWARE INSTALLATION
1. Select the Site – Choose a location for your Wireless Ethernet Adapter. Usually, the best location is at the center of your wireless coverage area, if possible within line-of-sight of all wireless devices.
2. Place the Wireless Ethernet Adapter in a position that gives it maximum coverage. Normally, the higher you place the antenna, the better the performance.
3. Position the antennas in the desired positions. For more effective coverage, position the antennas along different axes. For example, try positioning the antennas around 45 to 90 degress apart. (The antennas emit signals along the
toroidal plane – and thus provide more effective coverage when positioned along different axes.)
4. If used in Ethernet Adapter mode, connect the Ethernet cable to the RJ-45 socket of the device will communicate wirelessly with an access point.
5. If used in Acces Point, connect the Ethernet cable – The SMC2671W can be wired to an Ethernet network through an Ethernet device such as a hub or a switch using category 3, 4, or 5 UTP Ethernet cable and an RJ-45 connector. (See “Hardware Description” on page 3 for MDI/MDI-X cabling.)
6. Connect the power cable – Connect the power adapter cable to the 5 VDC power socket on the rear panel.
Warning: Use only the power adapter supplied with the
SMC2671W.
7
S
YSTEM
The SMC2671W is a Plug-and-Play device. This means that, in most cases, you will not need to configure it.
The SMC2671W Wireless Ethernet Adapter includes an SNMP agent that is accessible through an SNMP manager application (Refer to “Using the Configuration Utility” on page 12.) The latest version may be downloaded from the SMC web site specified on the back cover of this manual.
The SMC2671W can be configured by a web browser, which is Internet Explorer 5.5 or above. Using the web management interface, you can configure the Wireless Ethernet Adapter and view statistics to monitor network activity.
Before you attempt to log into the SMC2671W’s web-based administration, please verify the following.
1. Your browser is configured properly (see below).
2. Disable any firewall or security software that may be running.
C
ONFIGURATION
3. Confirm that you have a good link LED where your computer is plugged into the Wireless Ethernet Adapter. If you don’t have a link light – then try another cable to get a good link.
4. To access the Internet through the Wireless Ethernet Adapter, you must configure the network settings of the computers on your LAN to use the same IP subnet as the Wireless Ethernet Adapter. The default network settings for the Wireless Ethernet Adapter are:
Gateway IP Address: 192.168.2.1 Subnet Mask: 255.255.255.0 SMC2671W IP Address: 192.168.2.25
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EZ I
To configure your SMC2671W, first verify that your computer has an IP address in the same address scheme as the SMC2671W. If you are not familiar with this procedure, see the “Using IPCONFIG” section below.
Note: The default IP address of the SMC2671W is 192.168.2.25.
1. Insert the SMC EZ Installation Wizard & Documentation CD into your CD-ROM drive.
2. The EZ Installation Wizard will appear. Click “Configuration Utility” to begin the utility installation and setup process.
NSTALLATION
W
IZARD
9
EZ I
NSTALLATION WIZARD

Using IPCONFIG

1. Click the “Start” button, click “Run” and type “command.”
2. Press “OK” and a black command prompt will appear.
3. Type “ipconfig” and press enter.
4. Verify that your IP Address is 192.168.2.xxx. If so, you can now use the SMC EZ Installation Wizard to configure your SMC2671W. If your IP Address is completely different, please go to the “Configuring Your IP Address” on page 25.
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U
TILITY INSTALLATION AND
C
ONFIGURATION
Note: This Configuration Utility is for Windows 98SE, Me
2000, and XP
After clicking “Configuration Utility,” follow the on-screen instructions to install the utility program.
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U
TILITY INSTALLATION AND CONFIGURATION

Using the Configuration Utility

1. Click Start/Programs/SMC2671W/SMC2671W Configuration Utility.
2. The program will automatically scan for the SMC2671W access points on the network. If you want to subsequently detect all access points on the network, click the Scan button. From the list of detected SMC2671Ws, double-click on the IP Address of the unit you wish to configure. A dialogue box will prompt you for the login password.
3. Enter the default password: smcadmin.
12

Utility Configuration

System

The first screen displays System information.
U
TILITY CONFIGURATION
Menu Description
Device Information
Description The model number of the unit Mac Address The MAC address of the SMC2671W Regulatory
Domain Serial Number The product serial number of the SMC2671W
Countries have different regulations regarding the use of radio frequencies. Select the correct domain for your location.
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U
TILITY INSTALLATION AND CONFIGURATION
Menu Description
Administrator Password
Load Default The Load Default button will let you reload the factory default
Reset The Reset button will let you reboot the SMC2671W. Refresh/Apply Once a configuration change has been made on a screen, be
Sets the password for administrator access. (Default: smcadmin)
settings.
sure to click the Refresh or Apply button at the bottom of the screen to enable the new setting.
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U
TILITY CONFIGURATION

IP Config

Click on the IP Config tab to display and set up the IP settings of the SMC2671W.
Menu Description
Mac address The MAC address of the SMC2671W IP address Set the IP address for SMC2671W as required.
Subnet mask Set the Subnet Mask as required. (Default: 255.255.255.0) Gateway Set the default gateway as required. (Default: 192.168.2.1) DHCP Client You can enable the DHCP Client function to automatically get
Primary Port The Fast Ethernet port (RJ-45)
(Default: 192.168.2.25)
an IP Address, Subnet Mask, and Default Gateway from a DHCP server in your network. (Default: Disabled)
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U
TILITY INSTALLATION AND CONFIGURATION

Statistic

The Statistic tab displays transmit and receive statistics for Ethernet and wireless connections.
16
U

Wireless Operation

The Wireless Operation allow you to set up the wireless configurations.
TILITY CONFIGURATION
Menu Description
Wireless Settings
WLAN Interface WLAN interface allows you to set up a wireless LAN
SSID Broadcast Broadcast the SSID on the wireless network for easy
Channel ID Set the operating radio channel. (Default: 6)
ESSID Extended SSID. All wireless clients and the wireles access
communication environment. (Default: Enable)
connection with client PCs. (Default: Disable)
Note: Available channel settings are limited by local
regulations which determine which channels are available.
points within a specific ESS must be configured with the same SSID. (Default: SMC)
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U
TILITY INSTALLATION AND CONFIGURATION
Menu Description
Device Name The name of the wireless access point. (Default: SMC2671W) Basic Rates The highest rate specified is the rate the Wireless Barricade
Data Rates Set the data rate transmitted from the SMC2671W. The lower
Preamble Type The access points and client card drivers have a radio setting
Beacon Interval The beacon signals allow the wireless devices to maintain
RTS Threshold You may configure the access point to initiate an RTS frame.
Frag. Threshold The Frag. Threshold can be set between 256 and 2,346. If the
Operation Mode
Mode This may be set to Access Point, Range Extender, or Ethernet
BSSID Basic Service Set ID. The MAC address of the access point to
will use when transmitting broadcast/multicast and management frames. Available options are: 1, 2, 5.5, and 11 Mbps. (Default: 2 Mbps.)
the data rate, the longer the transmission distance. Available options are: 1, 2, 5.5, and 11 Mbps. (Default: 11)
for RF Preamble. If you are not sure whether all the clients and access point radios in your wireless network support the Short RF preamble, then leave this setting to the default (Long).
contact with each other. They may also carry power-management information. (Default: 100)
If the packet size is smaller than the preset RTS threshold size, the RTS/CTS mechanism will NOT be enabled. (Default: 2,347 which means Disabled)
packet size is smaller than the preset Fragment size, the packet will not be segmented. (Default: 2,346 which means Disabled)
Adapter. (Default: Access Point)
which the adapter is connected in an infrastructure network. In an ad hoc network, the BSS ID is a random number generated by the first adapter that communicates with other clients in the network. The BSS ID of the other clients will then be set to the same value.
18
U
TILITY CONFIGURATION
Menu Description
MAC Filtering You can decide which wireless devices are allowed to connect
to the SMC2671W by adding the MAC address of allowed clients. Wireless devices that are not in the table will be denied access.
• Choose Enable MAC Filtering to enable the MAC Filter. (Default: Disabled)
• Key in the MAC address of the Ethernet device which is allowed to associate with the SMC2671W, and click Add.
Note: The format of the MAC address is 12 hexadecimal
digits, i.e., A~F & 0~9.
• Select the MAC address from the MAC Address List, and click on the Delete button for removing the client association with the SMC2671W.
Note: This table will be blank if the SMC2671W is set the
Ethernet Adapter mode since the Ethernet Adapter has no clients but is itself the client of an associated access point.
19
U
TILITY INSTALLATION AND CONFIGURATION

Security

The Security screen provides you a versatile encryption method to prevent unauthorized access to your wireless network and provide more secure data transmissions.
20
U
TILITY CONFIGURATION
Menu Description
Type
Encryption Enabled/Disable WEP (Wired Equivalent Privacy) encryption.
(Default: None)
WEP All clients and a wireless access point in the wireless network
WEP (mode) The SMC2671W supports shared key encryption with key
Active (key) Choose a key from the generated keys.
Passphrase For automatic 64-bit security, enter a passphrase. Four keys
must have the same WEP setting.
lengths of the standard 64-bit and industry standard 128-bit.
will be generated (as shown below). Automatic 128-bit security generates a single passphrase.
You may automatically generate encryption keys or manually enter the keys. The bit key must be in hexadecimal numerals. (0~9, A~F, e.g., D7 0A 9C 7F E5.)
64-Bit Manual Entry Key 1~4 - Each Key ID contains 10 HEX digits.
128-Bit Manual Entry
Key ID contains 26 HEX digits.
21
U
TILITY INSTALLATION AND CONFIGURATION
22
U
TILITY CONFIGURATION
23
U
TILITY INSTALLATION AND CONFIGURATION

About

The About tab displays the product name, the software version number of the SMC2671W Configuration management tool, and SMC copyright information.
Note: Clicking the SMC logo on the screen takes you to the SMC
web site (www.smc.com
) for the latest firmware download.
24
C
ONFIGURING

Windows 98/Me

Note: Some Windows 9x/Me systems will request that you insert
your Windows CD in order to complete the following configuration. Please have this CD ready.
1. Click the “Start” button and choose “Settings,” then click “Control Panel.”
Y
OUR
A
DDRESS
IP
2. Double-click the “Network” icon.
25
C
ONFIGURING YOUR
3. Select the TCP/IP that is bound to the network adapter that you are currently using to configure your SMC2671W. Click “Properties.”
IP A
DDRESS
26
W
INDOWS
4. Select the Specify an IP option and insert 192.168.2.x (where x is
2 ~ 24, 26 ~ 254).
subnet mask.
Then insert 255.255.255.0 for the
98/M
E
5. Press OK and reboot the machine when prompted to do so.
27
C
ONFIGURING YOUR
IP A
DDRESS

Windows 2000

1. Right-click the “Network Places” icon on your desktop and click “Properties.”
2. Right-click your Local Area Connection and click “Properties.”
28
W
INDOWS
3. Click “Internet Protocol TCP/IP” and click “Properties.” Select the “Use the following IP Address” option and insert
192.168.2.x (where x is enter a gateway and DNS, you can enter 192.168.2.1.
2 ~ 24, 26 ~ 254)
. If requested to
2000
4. Click “OK” and click “Close” to continue and save the changes.
29
C
ONFIGURING YOUR
IP A
DDRESS

Windows XP

1. Right-click the “Network Places” icon on your desktop and click “Properties.”
2. Right-click your “Local Area Connection” and click “Properties.”
30
W
INDOWS
3. Click “Internet Protocol TCP/IP” and click “Properties.”
XP
31
C
ONFIGURING YOUR
4. Select the “Use the following IP Address” option and insert
192.168.2.x (where x is requested to enter a gateway and DNS, you can type in
192.168.2.1.
IP A
DDRESS
2 ~ 24, 26 ~ 254)
for the IP address. If
5. Click “OK” and click “Close” to continue and save the changes.
32
W
EB
M
ANAGEMENT

Browser Configuration

Confirm your browser is configured for a direct connection to the Internet using the Ethernet cable that is installed in the computer. This is configured through the options/preference section of your browser.

Disable Proxy Connection

You will also need to verify that the HTTP Proxy feature of your web browser is disabled. This is so that your web browser will be able to view the SMC2671W configuration pages. The following steps are for Internet Explorer. Determine which browser you use and follow the appropriate steps.

Internet Explorer (5.5 or above) in Microsoft Windows

1. Open Internet Explorer. Click Tools, and then select Internet Options.
2. In the Internet Options window, click the Connections tab.
3. Click the LAN Settings button.
4. Clear all the check boxes and click OK to save these LAN settings changes.
5. Click OK again to close the Internet Options window.

Internet Explorer in Macintosh

1. Open Internet Explorer. Click Explorer/Preferences.
2. In the Internet/Explorer/Preferences window, under Network, select Proxies.
3. Uncheck all check boxes and click OK.
33
WEB M
ANAGEMENT
To access the SMC2671W’s management interface, enter the Wireless Ethernet Adapter IP address in your web browser http://192.168.2.25 Then enter the password and click LOGIN. (Default: smcadmin)
The home page displays the Setup options.

Navigating the Web Browser Interface

The SMC2671W’s web management interface features a user-friendly setup interface. This configuration UI supports advanced functions like password setting , LAN IP setting, wireless security configuration, MAC address filtering, firmware upgrade, and other advanced functions.

Making Configuration Changes

Configurable parameters have a dialog box or a drop-down list. Once a configuration change has been made on a page, be sure to click the APPLY or REFRESH button at the bottom of the page to enable the new setting.
Note: To ensure proper screen refresh after a command entry,
ensure that Internet Explorer 5.5 is configured as follows: Under the menu Tools/Internet Options/General/ Temporary Internet Files/Settings, the setting for “Check for newer versions of stored pages” should be “Every visit to the page.”
34
N
AVIGATING THE WEB BROWSER INTERFACE
Use the web management interface to define system parameters, manage and control the Wireless Ethernet Adapter and its ports, or monitor network conditions. The following table outlines the selections available from this program.
Menu Description
System Sets the password for administrator access LAN Sets the TCP/IP configuration of the Wireless Ethernet
Wireless Configures the wireless channel, SSID, and encryption for
MAC Filter Configures control access to your network clients based on the
Tools Contains options to backup & restore the current configuration,
Status Displays the number of attached clients, the firmware versions,
Adapter’s LAN interface and all DHCP clients
wireless communications
MAC (Media Access Control) Address of the client machine
restore all configuration settings to the factory defaults, update system firmware, or reset the system
Displays WAN and Ethernet traffic statistics
the physical MAC address for each media interface, the hardware version and serial number, system IP settings, as well as DHCP and firewall information
35
WEB M
ANAGEMENT

System

Password Settings
Use this menu to restrict access based on a password. (Default: smcadmin) For security reason, you should change the default password before exposing the SMC2671W to the Internet.
Passwords can contain from 3–12 alphanumeric characters and are not case-sensitive.
Enter a maximum Idle Time Out (in minutes) to define a maximum period of time for which the login session is maintained during inactivity. If the connection is inactive for longer than the maximum idle time, it will perform system logout, and you have to login to the web management system again.
(Default: 10 minutes)
36
N
AVIGATING THE WEB BROWSER INTERFACE
LAN
With Obtain an IP Address Automaticly [DHCP] enabled, the IP address, subnet mask and default gateway can be dynamically assigned to the SMC2671W by the network DHCP server.
Note: If there is no DHCP server on your network, then the
SMC2671W will automatically start up with its default IP address, 192.168.2.25.
The SMC2671W does not support a DHCP server. It basically allows clients to pass through to the DHCP server to obtain an IP Address. If you have a server on your network that requires a static IP address, you may still use the DHCP Server and manually assign a static IP address to your server.
If your Internet Service Provider has assigned a fixed IP address, select Configure a Static IP Address. Enter the assigned address and subnet mask for the SMC2671W. Then enter the gateway address of your ISP.
37
WEB M
ANAGEMENT
You may need a fixed address if you want to provide Internet services, such as a web server or FTP server.

Wireless

To configure the SMC2671W as an Ethernet Adapter, all you need to do is define the radio channel, the Service Set Identifier (SSID), and encryption options.
In Ethernet Adapter mode or Range Extender mode, the radio channel and SSID (Service Set ID) of the SMC2671W must be set to the same values as those of the access point they are associated with.
If the SMC2671W is in Access Point mode, you must specify a common radio channel and SSID (Service Set ID) to be used by the Wireless Ethernet Adapter and all of your wireless clients. Be sure you configure all of your clients to the same values.
38
N
AVIGATING THE WEB BROWSER INTERFACE
Wireless Channel: The radio channel through which a wireless access point communicates with PCs in its BSS. (Default: 6)
Note: The available channel settings are limited by local
regulations which determine the number of channels that are available.
• U.S.: 1 ~ 11 channels
• Europe: 1 ~ 13 channels
• Japan: Channel 14
SSID: The Service Set ID. This should be set to the same value as other wireless devices in your network. (Default: ANY)
Note: The SSID is case-sensitive and can consist of up to 32
alphanumeric characters.
Broadcast SSID: In Access Point Mode or Range Extender Mode, the SMC2671W can be enabled to broadcast the SSID on the wireless network for easy connection with client PCs. (Default: Enable)
WEP Encryption
If you are transmitting sensitive data across wireless channels, you should enable Wired Equivalent Privacy (WEP) encryption.
Encryption requires you to use the same set of encryption/ decryption keys for a wireless access point and all of its wireless clients. The SMC2671W supports shared key encryption with key lengths of the standard 64-bit and industry standard 128-bit. The bit key must be in hexadecimal numerals. (0~9, A~F, e.g., D7 0A 9C 7F E5.)
39
WEB M
ANAGEMENT
64-Bit Manual Entry
Key 1~4 - Each Key ID contains 10 HEX digits.
128-Bit Manual Entry
Key ID contains 26 HEX digits.
You may automatically generate encryption keys or manually enter the keys. For automatic 64-bit security, enter a passphrase. Four keys will be generated (as shown above). Choose a key from the four generated keys. Automatic 128-bit security generates a single passphrase.
Note that Wired Equivalent Privacy (WEP) protects data transmitted between wireless nodes, but does not protect any transmissions over your wired network or over the Internet.
40
N
AVIGATING THE WEB BROWSER INTERFACE
Client List
The Client List screen displays the MAC address and network speed of the accociated clients.
41
WEB M
ANAGEMENT
Advanced Settings
Operation Mode: This may be set to Access Point, Range Extender or Ethernet Adapter. (Default: Ethernet Adapter)
Note: After you choose the operation mode for the SMC2671W,
be sure to click the APPLY button, and OK to the confirmation message to enable the new setting.
These modes are described below:
Access Point – functions as a standard IEEE 802.11b access point
Range Extender – repeats another SMC2671W that is configured in Access Point mode
Ethernet Adapter – provides a wireless connection to devices such as Microsoft Xbox and Ethernet ready embedded devices
42
N
AVIGATING THE WEB BROWSER INTERFACE
The parameters that follow may be configured in any of the three modes descibed above but the user is advised to leave them at their default settings.
Transmission Rate: Set the data rate transmitted from the Wireless Ethernet Adapter. The lower the data rate, the longer the transmission distance. (Default: Auto)
RTS Threshold: Set the RTS (Request to Send) frame length. You may configure the access point to initiate an RTS frame. If the packet size is smaller than the preset RTS threshold size, the RTS/CTS mechanism will NOT be enabled.
The access point sends Request to Send (RTS) frames to a particular receiving station to negotiate the sending of a data frame. After receiving an RTS, the station sends a CTS (Clear to Send) frame to acknowledge the right of the sending station to send data frames. The access points contending for the medium may not be aware of each other. The RTS/CTS mechanism can solve this “Hidden Node Problem.” (Default: 2347)
Fragmentation Threshold: The Fragmentation Threshold can be set between 256 and 2,346. If the packet size is smaller than the preset Fragment size, the packet will not be segmented.
Fragmentation of the PDUs (Package Data Unit) can increase the reliability of transmissions because it increases the probability of a successful transmission due to smaller frame size. If there is significant interference present, or collisions due to high network utilization, try setting the fragment size to send smaller fragments. This will enable the retransmission of smaller frames much faster. However, it is more efficient to set the fragment size larger if very little or no interference is present because it requires overhead to send multiple frames. (Default: 2346)
43
WEB M
ANAGEMENT
Basic Rate: The highest rate specified is the rate the
Wireless Ethernet Adapter will use when transmitting broadcast/multicast and management frames. (Default: 1, 2 Mbps.)
Preamble Type: The access points and client card drivers have a radio setting for RF Preamble. Enabling it can boost your throughput. Preamble Type offers a drop-down list with two options: Long or Short. If you are not sure whether all the clients and access point radios in your wireless network support the Short RF preamble, then leave this setting to the default (Long).
Transmit Power: Set the signal strength transmitted from the access point. The longer the transmission distance, the higher the transmission power required. (Default: Super)
Selections - Low, Medium, Normal, High and Super
44
N
AVIGATING THE WEB BROWSER INTERFACE
Site Survey
In Ethernet Adapter mode, the Site Survey scans and shows all IEEE 802.11b wireless devices within the adapter’s signal range. You can choose one of them to connect to by clicking on an (B)SSID entry.
BSSID: Basic Service Set ID. The MAC address of the access point to which the adapter is connected in an infrastructure network. In an ad hoc network, the BSS ID is a random number generated by the first adapter that communicates with other clients in the network. The BSS ID of the other clients will then be set to the same value.
Channel: The radio channel on which the access point operates.
45
WEB M
ANAGEMENT
WEP: WEP security protects your wireless LAN against
eavesdropping and unauthorized access by intruders. If WEP is in use, all clients on the same network must use the same WEP key settings in order to communicate with each other.
SSID: The Service Set ID of the scanned access points.

MAC Filter

The MAC Filtering feature of the SMC2671W allows you to control access to your network clients based on the MAC (Media Access Control) Address of the client machine. This ID is unique to each network adapter. If the MAC address is listed in the table, that client machine will have the access to your network.
46
N
AVIGATING THE WEB BROWSER INTERFACE

Tools

Use the Tools menu to backup the current configuration, restore a previously saved configuration, restore factory settings, update firmware, and reset the SMC2671W.
Configuration Tools
Backup Settings – Saves the SMC2671W’s configuration to a
file.
Restore Settings – Restores settings from a saved backup configuration file.
Restore to Factory Defaults – Restores the SMC2671W settings back to the original factory default.
47
WEB M
ANAGEMENT
Firmware Upgrade
Use this screen to update the firmware or user interface to the latest versions. Download the upgrade file from the web site and save it to your hard drive. Click Browse to look for the previously downloaded file. Click APPLY.
Check the Status page Information section to confirm that the upgrade process was successful.
48
WEB M
Reset
Click APPLY to reset the SMC2671W. Your settings will not be changed. The reset will be complete when the power LED is lit red.
ANAGEMENT
49
WEB M
ANAGEMENT
Statistics
The Statistics page displays transmit and receive statistics for all associated stations.
50
WEB M

Status

The Status screen displays WAN/LAN connection status, firmware, and hardware version numbers of the SMC2671W.
ANAGEMENT
51
N
ETWORK
The Wireless Solution supports a stand-alone wireless network configuration, as well as an integrated configuration with 10 Mbps Ethernet LANs. For a list of the maximum distances between the AP/Bridge and wireless clients, refer to page 57.
The wireless network cards and adapters can be configured as:
Ad hoc – for small departmental or SOHO LANs
Infrastructure – for enterprise LANs
C
ONFIGURATION
P
AND
LANNING

Network Topologies

Ad Hoc Wireless LAN

An ad hoc wireless LAN consists of a group of computers, each equipped with a wireless adapter or SMC2671W Ethernet Adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must be configured to the same radio channel.
An ad hoc wireless LAN can be used for a small branch office or SOHO operation.
52
N
ETWORK TOPOLOGIES

Infrastructure Wireless LAN

An integrated wired and wireless LAN is called an Infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN. Each wireless PC in this BSS can talk to any computer in its wireless group via a radio link, or access other computers or network resources in the wired LAN infrastructure via the access point.
The infrastructure configuration permits wireless clients to access the wired LAN and also increases the effective wireless transmission range for wireless clients as their signal can be passed through multiple access points.
A wireless infrastructure can be used for access to a central database, or for connection between mobile workers, as shown in the following figure.
53
N
ETWORK CONFIGURATION AND PLANNING

Infrastructure Wireless LAN for Roaming Wireless PCs

The Basic Service Set (BSS) is the communications domain for each wireless access point. For wireless PCs that do not need to support roaming, set the domain identifier (SSID) of the wireless card to the SS ID of the access point to which you want to connect. Check with your administrator for the SS ID of the access point to which he wants you to connect.
A wireless infrastructure can also support roaming for mobile workers. More than one access point can be configured to create an Extended Service Set (ESS). By placing the Access Points so that a continuous coverage area is created, wireless users within this ESS can roam freely. All wireless network cards, adapters, and the wireles access point within a specific ESS must be configured with the same SSID.
Note: If Access Point 2 is replaces by an SMC2671W set to
Range Extender mode then the SMC2671W will not establish its own BSS, but will repeat data messeges between Acess Point 1 and end users, thus extending the coverage area of Access Point 1.
54
N
ETWORK TOPOLOGIES

A Wireless LAN with Internet Access

In this application one SMC2671W is in Ethernet Adapter mode connected to a Microsoft Xbox. Another SMC2671W is acting in Access Point mode. This provides a wireless network and also Intrnernet access for applications including Internet game playing.
55
T
ROUBLESHOOTING
Check the following items before you contact technical support.
1. If mobile users do not have roaming access to the SMC2671W:
Make sure that all the SMC2671Ws and stations in the ESS in which the WLAN mobile users can roam are configured to the same WEP setting, SSID, and authentication algorithm.
2. If the management utility cannot connect to the SMC:
Check that your local IP address settings conform to the SMC2671W settings.
3. If you forgot your password or your SMC2671W has locked up, you can reset it to factory defaults by performing the following steps:
Use a pin to push in the RELOAD button for 5 seconds. This button was located on the bottom of the SMC2671W.
The SMC2671W will begin to load the default settings.
56
The SMC2671W will restart with the factory default settings.
SMC N
ETWORKS
802.11B W
IRELESS PRODUCT MAXIMUM DISTANCE
SMC Networks 802.11b Wireless Product
Maximum Distance Table
Important Notice
Maximum distances posted below are actual tested distance thresholds. However, there are many variables such as barrier composition and construction, as well as local environmental interference that may impact your actual distances and cause you to experience distance thresholds far lower than those posted below. If you have any questions or comments regarding the features or performance of this product, or if you would like information regarding our full line of wireless products, visit us at www.smc.com, or call us toll-free at 800.SMC.4YOU. SMC Networks stands behind every product sold with a 30-day satisfaction guarantee and a limited-lifetime warranty.
SMC2602W 802.11b Wireless PCI Card Maximum Distance Table
Speed and Distance Ranges
Environmental Condition 11 Mbps 5.5 Mbps 2 Mbps 1 Mbps
Outdoors: A line-of-sight
environment with no interference or obstruction between the Access Point and users.
Indoors: A typical office or home environment with floor to ceiling obstructions between the Access Point and users.
160 m (528ft)
72 m
(236 ft)
195 m
(640 ft)
73 m
(240 ft)
255 m
(837 ft)
73 m
(240 ft)
350 m
(1155 ft)
75 m
(246 ft)
57
S
PECIFICATIONS
Standards
Ethernet: IEEE 802.3x 10BASE-T/100BASE-TX (RJ-45) Radio: IEEE 802.11b
Operating Channels
IEEE 802.11b compliant
USA & Canada: 11 channels, Europe (ETSI): 13 channels, Japan: 14 channels
Data Rate
1, 2, 5.5, 11 Mbps
Operating Frequency
USA, Canada, and Europe (ETSI): 2400-2483.5 MHz Japan: 2400-2497 MHz
Modulation Type
CCK, BPSK, and QPSK
Radio Technology
Direct Sequence Spread Spectrum
Power Supply
Input: 100-240 AC, 50-60 Hz Output: 5 VDC, 1A
Power Consumption
5 V, 700 mA maximum
Receive Sensitivity
Minimum -87 dBm for 1 Mbps Minimum -85 dBm for 2 Mbps Minimum -83 dBm for 5.5 Mbps Minimum -80 dBm for 11 Mbps
Output Power
> +18dBm minimum
Physical Size
14.30 x 12.20 x 3.03 cm (5.63 x 4.80 x 1.19 in)
Weight
150 g (5.3 oz)
58
LED Indicators
Power, Ethernet Link/Activity, Wireless Activity (TX/RX)
Antenna
Two 2.0 dBi omni-directional dipole antenna
Network Management
Windows 98SE/Me/2000/XP SNMP Management Utility
Operating System Compatibility
Windows 98SE/Me/2000/XP
Supported Protocol
TCP/IP, IPX
Encryption
64-bit/128-bit WEP Passphrase key generation
Temperature
Operating: 0 to 50 °C (32 to 122 °F) Storage: 0 to 70 °C (32 to 158 °F)
Humidity
5% to 85% (non-condensing)
Compliances
CE Mark EN55022 Class B EN55024 IEC 61000-42/3/4/6/11
Emissions
FCC Part 15 Class B ETSI 300.328 Te le c ARIB STD33 and T66
S
PECIFICATIONS
59
T
ERMINOLOGY
The following is a list of terminology that is used in this document.
Access Point – An internetworking device that seamlessly connects wired and wireless networks.
Ad Hoc – An ad hoc wireless LAN is a group of computers each with LAN adapters, connected as an independent wireless LAN.
Backbone – The core infrastructure of a network. The portion of the network that transports information from one central location to another central location where it is unloaded onto a local system.
Base Station – In mobile telecommunications, a base station is the central radio transmitter/receiver that maintains communications with the mobile radio telephone sets within its range. In cellular and personal communications applications, each cell or micro-cell has its own base station; each base station in turn is interconnected with other cells’ bases.
BSS – BSS stands for “Basic Service Set.” It is an Access Point and all the LAN PCs that are associated with it.
CSMA/CA – Carrier Sense Multiple Access with Collision Avoidance.
ESS – ESS (ESS-ID, SSID) stands for “Extended Service Set.” More than one BSS is configured to become an Extended Service Set. LAN mobile users can roam between different BSSs in an ESS (ESS-ID, SSID).
60
T
ERMINOLOGY
Ethernet – A popular local area data communications network, which accepts transmission from computers and terminals. Ethernet operates on a 10 Mbps baseband transmission rate, using a shielded coaxial cable or shielded twisted pair telephone wire.
Infrastructure – An integrated wireless and wired LAN is called an Infrastructure configuration.
Fragmentation Threshold – In the 802.11 Standard, the MAC Layer may fragment and reassemble directed MSDUs or MMPDUs. The fragmentation and defragmentation mechanisms allow for fragment re-transmission.
Preamble Type – Some access points and client card drivers have a radio setting for “Short” RF Preamble. If all the clients and access points in your wireless network have this feature, then enabling it can boost your throughput. However, if a radio does not support this feature, then it will not be able to communicate with any other radios that have this set to “Short.”
Roaming – A wireless LAN mobile user moves around an ESS and maintains a continuous connection to the Infrastructure network.
RTS Threshold – Transmitters contending for the medium may not be aware of each other. RTS/CTS mechanism can solve this “Hidden Node Problem.” If the packet size is smaller than the preset RTS Threshold size, the RTS/CTS mechanism will NOT be enabled.
WEP – “Wired Equivalent Privacy” is based on the use of 64-bit or 128-bit keys and the popular RC4 encryption algorithm. Wireless devices without a valid WEP key will be excluded from network traffic.
61
T
ERMINOLOGY
62
FOR TECHNICAL SUPPORT, CALL:
From U.S.A. and Canada (24 hours a day, 7 days a week)
(800) SMC-4-YOU; Phn: (949) 679-8000; Fax: (949) 679-1481
From Europe : Contact details can be found on
www.smc-europe.com or www.smc.com
INTERNET
E-mail addresses:
techsupport@smc.com european.techsupport@smc-europe.com
Driver updates:
http://www.smc.com/index.cfm?action=tech_support_drivers_downloads
World Wide Web:
http://www.smc.com http://www.smc-europe.com
FOR LITERATURE OR ADVERTISING RESPONSE, CALL:
U.S.A. and Canada: (800) SMC-4-YOU; Fax (949) 679-1481 Spain: 34-91-352-00-40; Fax 34-93-477-3774 UK: 44 (0) 1932 866553; Fax 44 (0) 118 974 8701 France: 33 (0) 41 38 32 32; Fax 33 (0) 41 38 01 58 Italy: 39 (0) 335 5708602; Fax 39 02 739 14 17 Benelux: 31 33 455 72 88; Fax 31 33 455 73 30 Central Europe: 49 (0) 89 92861-0; Fax 49 (0) 89 92861-230 Nordic: 46 (0) 868 70700; Fax 46 (0) 887 62 62 Eastern Europe: 34 -93-477-4920; Fax 34 93 477 3774 Sub Saharian Africa: 216-712-36616; Fax 216-71751415 North West Africa: 34 93 477 4920; Fax 34 93 477 3774 CIS: 7 (095) 7893573; Fax 7 (095) 789 35 73 PRC: 86-10-6235-4958; Fax 86-10-6235-4962 Taiwan: 886-2-8797-8006; Fax 886-2-8797-6288 Asia Pacific: (65) 238 6556; Fax (65) 238 6466 Korea: 82-2-553-0860; Fax 82-2-553-7202 Japan: 81-45-224-2332 ; Fax 81-45-224-2331 Australia: 61-2-8875-7887; Fax 61-2-8875-7777 India: 91-22-8204437 ; Fax 91-22-8204443
If you are looking for further contact information, please visit www.smc.com, www.smc-europe.com, or www.smc-asia.com.
38 Tesla Irvine, CA 92618 Phone: (949) 679-8000
Model Number: SMC2671W Revision Number E102003-R01 F 1.0 Part Number: 150000030200E
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