| submitted | available | document details (if available) | source link |
|---|---|---|---|
| August 11 2004 | May 11 2004 |
| various | User Manual | Users Manual | 525.67 KiB | August 11 2004 / May 11 2004 |
EZ Connect g 2.4 GHz 54 Mbps Wireless USB Adapter User Guide The easy way to make all your network connections 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 October 2004 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 2004 by SMC Networks, Inc. 38 Tesla Irvine, CA 92618 All rights reserved. Trademarks:
SMC is a registered trademark; and EZ Connect g and EZ Hub are trademarks of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders. COMPLIANCES 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 Connect the equipment into an outlet on a circuit different from that to which the Increase the separation between the equipment and receiver receiver is connected Consult the dealer or an experienced radio/TV technician for help FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the users 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 This equipment complies with FCC radiation exposure limits set forth for an This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. 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 This transmitter must not be co-located or operating in conjunction with any other other antenna or transmitter. antenna or transmitter. SMC declared that SMC2862W-G is limited in CH1~11 from 2400 to 2483.5 MHz by specified firmware controlled in USA. This equipment has been SAR-evaluated for use in laptops (notebooks) with side slot configuration. i COMPLIANCES Wireless 2.4 GHz Band Statements:
As the SMC2862W-G Wireless USB can operate in the 2412-2462 MHz frequency band it is limited by the FCC, Industry Canada and some other countries to indoor use only so as to reduce the potential for harmful interference to co-channel Mobile Satellite systems. The term IC: before the radio certification number only signifies that Industry Canada technical specifications were met. 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 Industry Canada. Cet appareil numrique respecte les limites de bruits radiolectriques applicables aux appareils numriques de Classe B prescrites dans la norme sur le matrial brouilleur: Appareils Numriques, NMB-003 dicte par lIndustrie. Australia/New Zealand AS/NZS 4771 ACN 066 352010 A.C.N 096 592 442 Contact SMC at:
SMC Networks, Inc. 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 Industry Canada-RF Operation is subject to the following two conditions:
1) this device may not cause interference and 2) this device must accept any interference, including interference that may cause undesired operation of the device To prevent radio interference to the licensed service, this device is intended to be operated indoors and away from windows to provide maximum shielding. Equipment (or its transmit antenna) that is installed outdoors is subject to licensing. ii COMPLIANCES EC Conformance Declaration The following importer/manufacturer is responsible for making this declaration:
SMC Networks-Spain, S.L. Edificio Conata II, Calle Fructuos Gelabert 6-8, 2o, 4a, 08970 - Sant Joan Despi, Barcelona, Spain. This RF product complies with R&TTE Directive 99/5/EC. For the evaluation of the compliance with this Directive, the following standards were applied:
Electromagnetic compatibility and radio spectrum matters (ERM) EN300 328-1 (2001-12) EN300 328-2 (2001-12) Electromagnetic Compatibility (EMC) Standard for radio equipment and services EN301 489-1 EN301 489-17 Safety Test EN60950 Intended for use in the following countries:
Austria Finland Italy Norway Switzerland Greece Belgium France Luxembourg Spain United Kingdom Ireland Denmark Germany Netherlands Sweden Portugal Iceland iii COMPLIANCES Wichtige Sicherheitshinweise (Germany) 1. Bitte lesen Sie diese Hinweise sorgfltig durch. 2. Heben Sie diese Anleitung fr den spteren Gebrauch auf. 3. Vor jedem Reinigen ist das Gert vom Stromnetz zu trennen. Verwenden Sie keine Flssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung. 4. Die Netzanschlu steckdose soll nahe dem Gert angebracht und leicht zugnglich sein. 5. Das Gert ist vor Feuchtigkeit zu schtzen. 6. Bei der Aufstellung des Gertes ist auf sicheren Stand zu achten. Ein Kippen oder Fallen knnte Beschdigungen hervorrufen. 7. Die Belftungsffnungen dienen der Luftzirkulation, die das Gert vor berhitzung schtzt. Sorgen Sie dafr, da diese ffnungen nicht abgedeckt werden. 8. Beachten Sie beim Anschlu an das Stromnetz die Anschluwerte. 9. Verlegen Sie die Netzanschluleitung so, da niemand darber fallen kann. Es sollte auch nichts auf der Leitung abgestellt werden. 10. Alle Hinweise und Warnungen, die sich am Gert befinden, sind zu beachten. 11. Wird das Gert ber einen lngeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer berspannung eine Beschdigung vermieden. 12. Durch die Lftungsffnungen drfen niemals Gegenstnde oder Flssigkeiten in das Gert gelangen. Dies knnte einen Brand bzw. elektrischen Schlag auslsen. 13. ffnen sie niemals das Gert. Das Gert darf aus Grnden der elektrischen Sicherheit nur von authorisiertem Servicepersonal geffnet werden. iv COMPLIANCES 14. Wenn folgende Situationen auftreten ist das Gert vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu berprfen:
a. Netzkabel oder Netzstecker sind beschdigt. b. Flssigkeit ist in das Gert eingedrungen. c. Das Gert war Feuchtigkeit ausgesetzt. d. Wenn das Gert nicht der Bedienungsanleitung entsprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen. e. Das Gert ist gefallen und/oder das Gehuse ist beschdigt. f. Wenn das Gert deutliche Anzeichen eines Defektes aufweist. 15. Stellen Sie sicher, da die Stromversorgung dieses Gertes nach der EN 60950 geprft ist. Ausgangswerte der Stromversorgung sollten die Werte von AC 7,5-8V, 50-60Hz nicht ber oder unterschreiten sowie den minimalen Strom von 1A nicht unterschreiten. Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 betrgt 70dB(A) oder weniger. California Proposition 65 Warning This product or components of this product contains a chemical(s) known to the State of California to cause cancer and/or birth defects or other reproductive harm. v COMPLIANCES vi TABLE OF CONTENTS EZ Connect g Wireless USB Adapter . 1 Features . 1 Applications . 2 System Requirements . 3 Package Contents . 3 Hardware Description . 4 LED . 4 Driver and Utility Installation . 5 For Windows 2000/XP . 5 Hardware Installation . 10 SMC2862W-G Utility . 12 Configuration . 13 Common . 14 Security . 15 Advanced . 21 Link Information . 23 IP Information . 25 Site Survey . 27 Version Information . 29 Network Configuration and Planning . 30 Network Topologies . 30 Ad Hoc Wireless LAN . 30 Infrastructure Wireless LANs . 31 Setting the Communication Domain . 32 Stationary Wireless PCs . 32 Roaming Wireless PCs . 32 Troubleshooting . 34 Adapter Installation Problems . 34 Network Connection Problems . 35 Specifications . 36 General Specifications . 36 vii TABLE OF CONTENTS viii EZ CONNECT G WIRELESS USB ADAPTER SMCs EZ Connect g Wireless USB Adapter (SMC2862W-G) is a 54 Mbps wireless adapter that seamlessly integrates with existing Ethernet networks to support applications such as mobile users or temporary conferences. This solution offers a high data rate and reliable wireless connectivity with considerable cost savings over wired LANs (which include long-term maintenance overhead for cabling). Just install enough wireless access points to cover your network area, plug wireless cards into your notebooks or computers, and start networking. Using this card in conjunction with any SMC 802.11g/b wireless access point, you can create an instant network that integrates seamlessly with your existing LANs. Moreover, moving or expanding your network is as easy as moving or installing additional access points no wires!
Features Backward compatible with the existing 802.11b WLAN infrastructure Enhances your network security with Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA) Greater flexibility to locate or move networked PCs Easy Plug-n-Play installation and user-friendly configuration Integrates with or replaces wired LANs at dramatically lower cost than wired alternatives 1 EZ Connect g Wireless USB Adapter Orthogonal Frequency Division Multiplexing (OFDM) technology provides high speed connection Applications EZ Connect wireless products offer fast, reliable, cost-effective network access for wireless clients in applications such as:
Remote access to corporate network information Email, file transfer, and terminal emulation Difficult-to-wire environments Historic or old buildings, asbestos installations, and open areas where wiring is difficult to employ Frequently changing environments Retailers, manufacturers, and banks who frequently rearrange the workplace and change location Temporary LANs for special projects or peak times Trade shows, exhibitions, and construction sites that need to set up for a short time period. Retailers, airline, and shipping companies who need additional workstations for peak times Access to databases for mobile workers Doctors, nurses, retailers, office workers who need access to databases while being mobile in a hospital, retail store, office, campus, etc. SOHO (Small Office Home Office) users SOHO users who need quick and easy installation of a small network 2 System Requirements System Requirements Before you install the EZ Connect g Wireless USB Adapter, check your system for the following requirements:
Available 2.0 USB slot Windows 2000/XP Minimum of 32 MB RAM and 300 MHz CPU Minimum of 6 MB of free hard disk space for driver and utility installation Another IEEE 802.11g or 802.11b compliant device installed in your network, such as the SMC2804WBRP-G Wireless Cable/DSL Broadband Router with USB Print Server, or another machine with a wireless adapter, such as the SMC2802W EZ Connect g 2.4GHz 802.11g Wireless PCI Card Package Contents The EZ Connect g Wireless USB Adapter package includes:
1 SMC2862W-G EZ Connect g Wireless USB Adapter 1 EZ Installation Wizard and Documentation CD 1 Quick Installation Guide Please register this product and upgrade the product warranty at http://www.smc.com Please inform your dealer if there are any incorrect, missing or damaged parts. If possible, retain the carton and the original packing materials, in case there is a need to return the product. 3 HARDWARE DESCRIPTION The SMC2862W-G adapter provides 54 Mbps connections. It is fully compliant with the specification of the IEEE 802.11g standard. It can be installed in any computer running Windows 2000/XP, with a 2.0 USB slot. LED The status LED indicator of the SMC2862W-G is described in the following figure and table. Figure 1. LED Indicator Status Description On (Green) Indicates a valid connection. Slow Flashing Fast Flashing Indicates that the adapter is scanning for available networks. Indicates that the adapter is transmitting or receiving data. 4 DRIVER AND UTILITY INSTALLATION The EZ Installation Wizard and Documentation CD that comes with the package contains all the software, including the driver and utility for the SMC2862W-G adapter. Any new or updated software can be downloaded from the SMC web site at http://www.smc.com. Also, check the SMC web site for additional online support. For Windows 2000/XP It is recommended that you install the utility and driver software first, before inserting the adapter into your computer. You may find that the screen shots here do not exactly match your version of Windows. This is because these screen shots were created from Windows XP. Steps for Windows 2000, are similar, but not identical, to Windows XP. 5 Driver and Utility Installation 1. Insert the EZ Installation Wizard CD into your CD-ROM drive. The CD will auto-run, click on Install Driver/Utility. 2. Then the Setup window will automatically appear. Your OS will start copying files into the system. This may take a few minutes. 3. Please insert the SMC2862W-G adapter into your computer. 6 For Windows 2000/XP 4. Once the utility has been installed on your system, The Found New Hardware Wizard window appears, select the Install the software automatically option, and click Next. 5. Click Continue Anyway to proceed with the installation. Note: Do not select STOP Installation, as this will cancel the installation process, and the drivers will not be installed properly. 7 Driver and Utility Installation 6. For users who are using this adapter outside of the United States and Canada, the Country Select window will appear. Please select the country in which you are using the adapter. Note:
This domain configuration applies only to users outside of the FCC regulatory domain. If you are using this adapter in the United States and Canada, please skip this step. 7. This window will then appear indicating that the driver has been installed on your system. 8 For Windows 2000/XP 8. Click Finish to restart your computer. Your adapter is now ready for use. 9 HARDWARE INSTALLATION Network cards are sensitive to static electricity. To protect the card, avoid touching its electrical components, and touch the ground often to equalize the static charges, before handling the card. To insert the card:
1. Find an available 2.0 USB slot in your desktop PC or a laptop. Desktop USB port Laptop USB port Figure 2. USB Port 10 Hardware Installation 2. With the adapters connector facing the USB slot, and the EZ Connect g label facing up, slide the card completely into the slot as shown below. Figure 3. Desktop Installation Figure 4. laptop Installation 11 SMC2862W-G UTILITY To communicate with other SMC 802.11g or 802.11b devices, you need to configure the SMC2862W-G adapter first. Double-click the SMC2862W-G Utility icon on the desktop to launch the configuration utility, or you can access it from the Start menu. Icon on the desktop:
Icon on the toolbar:
Note that the screen shots were taken from Windows XP and will not look exactly the same in all operating systems. 12 Configuration The SMC2862W-G Utility program includes the following five tabs:
Configuration Allows you to set parameters for the wireless adapter. Link Information Allows you to view network status. IP Information Displays TCP/IP data. Site Survey Scans/shows all wireless devices within the adapters signal range. Version Information Shows the driver and utility version information. At the bottom of the screen, there are three boxes that can be selected:
Radio On/Radio Off This allows you to turn on/off the transmission/reception of the adapter. Help Click here to display the help file. Exit This closes the configuration utility dialog box. Configuration Go to the Configuration tab to set parameters for the SMC2862W-G adapter. Select Profile You can select a proper profile from the drop-down menu, or specify a profile name for a specific configuration of parameters. New To set up a new profile, click New. Save To save a new profile after configuring the settings, click Save. 13 SMC2862W-G Utility Delete To delete a profile, select the profile from the drop-down menu in the Select Profile field, then click Delete. Common Network Name Input an SSID for the wireless network to which you want to connect. Operating Mode Set the adapters operating mode to 802.11 AdHoc for a network environment that does not have an access point, or to Infrastructure for connections with an access point.
(See Network Topologies on page 30 for more information.) 14 Configuration Transmit Rate Indicates the data transmission rate. Select an appropriate transmission speed. Lower speeds will give better range. Power Save Mode To use this funtion, select the Enabled or Disabled in the Power Save Mode drop-down menu, then click the Apply Change button. Security The Security ON/Security OFF button indicates whether the security function has been enabled or disabled. Click the Security ON/Security OFF button to enable the security function. (Default: Security OFF) 15 SMC2862W-G Utility Authentication Type WPA-PSK (Wi-Fi Protected Access-Pre Share Key) and WEP (Wired Equivalent Privacy) are implemented in the SMC2862W-G adapter to prevent unauthorized access. WPA-PSK How to set up WPA:
Wi-Fi Protected Access is a standards-based, interoperable security enhancement that strongly increases the level of data protection and access control for existing and future wireless LAN systems. It will be forward-compatible with the upcoming IEEE 802.11i standard. WPA employs a combination of several technologies to provide an enhanced security solution for 802.11 wireless networks, including TKIP (Temporal Key Integrity Protocol) for data protection and 802.1x for authenticated key management. WPA provides a simple operating mode that uses just a pre-shared password for network access. The Pre-Shared Key mode uses a common password for user authentication that is manually entered on the access point and all wireless clients on the network. To use the WPA function, take the following steps:
1. Select Authentication Type, WPA-PSK from the drop-down menu. 2. Type in the Pre-Shared Key (PSK). 3. Click Apply Change to allow the settings to take effect. Note: The PSK Passphrase character limit needs to be between 8-63 characters. Manual Pre-Shared Key supports up to 64-Hex characters. If there is no authentication server on your SOHO network, you can issue the Pre-Shared Key to the adapter that is connected to the access point. Be sure to use the same key for the wireless access point and the connected adapter. 16 Configuration For enterprise deployment, WPA requires a RADIUS authentication server to be configured on the wired network. The 802.1x client and RADIUS server should use an appropriate EAP type - such as EAP-TLS (Transport Layer Security), EAP-TTLS
(Tunneled TLS), or PEAP (Protected EAP) - for strongest authentication. Working together, these protocols provide mutual authentication between a client, the access point, and a RADIUS server that prevents unauthorized users from joining your network, and also prevents users from accidentally joining a rogue network. Only when a RADIUS server has authenticated a users credentials will encryption keys be sent to the access point and client. Note: To implement WPA on wireless clients requires a WPA-enabled network card driver and 802.1x client software that supports the EAP authentication type that you want to use. Windows XP provides native WPA support, other systems require additional software. Note that Microsoft now has an 802.1x authentication client for Windows 2000 that you can download from their web site. 17 SMC2862W-G Utility WEP Authentication Mode Choose Open or Shared. Default Key Choose the key for encryption. Key Type Select 64-bit encryption, 64-bit encryption (ASCII), 128-bit encryption,or 128-bit encryption (ASCII). Use Passphrase Check this box to auto-generate keys for encryption. First, check this box, then enter a string of characters into the space. Encryption keys will be generated automatically. When Key Type is set to 128-bit, only one key will be generated. If Key Type is set to 64-bit, four keys will be generated. Note that you must use the same passphrase and default key on all the other clients in your network. 18 Configuration How to set up WEP:
If you are transmitting sensitive data across wireless channels, you should enable Wired Equivalent Privacy (WEP) encryption. WEP provides a basic level of security, preventing unauthorized access to the network and encrypting data transmitted between wireless clients and the access point. WEP uses static shared keys (fixed-length hexadecimal or alphanumeric strings) that are manually distributed to all clients that want to use the network. WEP is the security protocol initially specified in the IEEE 802.11 standard for wireless communications. For more robust wireless security, the SMC2862W-G provides Wi-Fi Protected Access
(WPA) for improved data encryption and user authentication. Note: Only one key is needed for WEP to function. However, the IEEE 802.11 standard specifies that there must be four keys for each device. For security purposes, the key should be changed on a regular basis. Multiple keys are supported to allow the user to change keys with minimal disruption of the network. To set up the WEP function, take the following steps:
1. Select 64-bit encryption, 64-bit encryption (ASCII), 128-bit encryption,or 128-bit encryption (ASCII) in the Key Type field. 2. To automatically generate keys, check the Use Passphrase box, and type in a string of characters in this field. 3. In the Default Key field, select one key as the default key that you want to use for encryption. 4. Click Apply Change to allow the settings to take effect. 19 SMC2862W-G Utility Or 1. Select 64-bit encryption, 64-bit encryption (ASCII), 128-bit encryption,or 128-bit encryption (ASCII) in the Key Type field. 2. In the Default Key field, select one key as the default key that you want to use for encryption. 3. Manually type in a string of characters in the corresponding key number field that you selected in step 2. 4. Click Apply Change to allow the settings to take effect. Note: When setting up WEP without using the Use Passphrase function, if the Key Type is set to Hex, only Hexadecimal characters (range: 0~9 and A~F) can be used. When encryption is set to 64-bit, a maximum of 10 Hex characters can be entered in the Key field. When encryption is set to 128-bit, a maximum of 26 Hex characters can be used. If the Key Type is set to ASCII, and encryption is set to 64-bit, then 5 ASCII characters can be used in the Key field. For 128-bit encryption, 13 ASCII characters can be used. 20 Advanced Configuration RTS Threshold This sets the packet size threshold at which a Request to Send (RTS) signal must be sent to the receiving station prior to the sending station starting communications. Devices contending for the wireless medium may not be aware of each other. The RTS/CTS mechanism can solve this problem. The larger the threshold, the faster the speed. Fragment Threshold Sets the minimum packet size that can be transmitted from the adapter without being fragmented. Fragmentation can increase the reliability of transmissions because it increases the probability of a successful transmission due to smaller frame size. The larger the threshold, the faster the speed. 21 SMC2862W-G Utility Preamble Type The preamble is used to acquire the incoming signal and synchronize the receiver. If all the clients in your service area support the short preamble or can automatically set the preamble type, then setting the preamble on the access point to short can boost your throughput. (Options: Short & Long, Long, Short; Default: Short & Long) Transmit Power Move the slider bar up and down to select an appropriate transmission power. Lower power reduces interference, higher power gives more range. 22 Link Information Link Information The Link Information screen displays information of the current wireless access point to which you are connected. Network Name The name of the network to which the adapter is currently connected with other clients on the network. Base Station Name ID The MAC address of the access point to which this adapter is connected in an infrastructure network. In an ad hoc network, the Network Name is a random number generated by the first station that communicates with other clients on the network. 23 SMC2862W-G Utility Channel The channel used to connect with the wireless device. Current Connection Speed The data transmission speed. Link Quality Shows the link quality of the wireless connection. Signal Strength Shows the strength of the connection between the adapter and the access point. 24 IP Information IP Information This screen displays IP Information for your computer. Now that you have configured your adapter to connect to a wireless network, your adapter needs to obtain new network settings. By releasing old IP settings and renewing them with settings from the access point, you will also verify that you have configured your adapter correctly. To release network settings click on Release, then click on Renew to get new IP settings. 25 SMC2862W-G Utility IP Address Client Internet address of the computer. IP Netmask Client A mask used to determine the subnet for an IP address. Gateway The IP address of the network gateway. Host Name Client Your computer name on the network. Release Click on this button to release the IP address. Renew Click on this button to get a new IP address. 26 Site Survey Site Survey Site Survey scans and displays all wireless devices within range. You can choose one of them to connect to by double-clicking on an entry. 27 SMC2862W-G Utility Scan Click this button to scan for available network connections. Network name Service Set ID. (See Configuration on page 13 for details.) MAC address The MAC address of the listed wireless devices. Channel The radio channel on which the access point operates. (See Link Information on page 23 for details.) Encryption The key icon indicates that encryption has been enabled. Signal This shows the signal strength from the adapter to the listed access points. Scroll right to see the remainder of the Site Survey screen. Network Type This shows the operating mode of the listed wireless devices. 28 Version Information Version Information This screen shows information on the current version of the driver and the configuration utility program. You can download the latest firmware from the SMC web site at http://www.smc.com. 29 NETWORK CONFIGURATION AND PLANNING SMCs EZ Connect g Wireless Solution supports a stand-alone wireless network configuration, as well as an integrated configuration with 10/100 Mbps Ethernet LANs. The SMC2862W-G can be configured as:
Ad hoc - for small groups that only communicate with each other, without access points Infrastructure - for wireless LANs Network Topologies Ad Hoc Wireless LAN An ad hoc wireless LAN consists of a group of computers, each equipped with one wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must therefore be configured to the same radio channel. An ad hoc wireless LAN can be used in a SOHO or temporary environment. Ad Hoc Wireless LAN Notebook with Wireless USB Adapter Notebook with Wireless PC Card PC with Wireless PCI Adapter 30 Network Topologies Infrastructure Wireless LANs The SMC 802.11g access point (SMC2870W) can also provide wireless workstations with access to a wired 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 not only extends the accessibility of wireless PCs to the wired LAN, but also extends the effective wireless transmission range for wireless PCs by passing their signal through one or more 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. Wired LAN Extension to Wireless Adapters File Server Desktop PC Switch Notebook with Wireless USB/PC Card Adapter Access Point PC with Wireless USB/PCI Adapter 31 Network Configuration and Planning Setting the Communication Domain Stationary Wireless PCs The Basic Service Set (BSS) is the communication domain for each access point. For wireless PCs that do not need to support roaming, set the domain identifier (SSID) for the wireless card to the SSID of the access point to which you want to connect. Check with your administrator for the SSID of the access point to whick you are connecting. Roaming Wireless PCs 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 adapters and access points within a specific ESS must be configured with the same SSID and to the same radio channel. You can configure the wireless client to connect to a specific wireless network or to the first available wireless network. If you configure the client to connect to a specific wireless network, the client establishes a radio connection to the AP in the specified wireless network that provides the best communications quality. APs in a different wireless network are ignored. If you configure the client to connect to the first available wireless network (the SSID = ANY), the client establishes a radio connection to the AP that provides the best communications quality. Be aware that if there are multiple wireless networks, the client could connect to an AP that is not in the network you want to join. 32 Setting the Communication Domain In either configuration, the client automatically matches the radio channel used by the AP. Desktop PC File Server Switch Notebook with Wireless PC Card Adapter Switch Notebook with Wireless USB Adapter Access Point
<BSS2>
Access Point
<E SS>
<BSS1>
PC with Wireless USB/PCI Adapter Seamless Roaming 33 TROUBLESHOOTING Check the following troubleshooting items before contacting SMC technical support. Adapter Installation Problems If your computer cannot find the SMC2862W-G adapter or the driver software does not install correctly, check the following:
Make sure the adapter is securely seated in the 2.0 USB slot. Check for any hardware problems, such as physical damage to the cards connector. Try the card in another USB slot. If this also fails, test your PC with another wireless adapter that is known to operate correctly. Make sure your PC is using the latest BIOS. If there are other network adapters in the PC, they may be causing conflicts. Remove all other adapters from the PC and test the wireless adapter separately. If it still does not work, go to Control Panel and delete the adapter from your system. Remove the wireless adapter from your computer. Restart your computer and reinstall the card and the driver and utility. 34 Network Connection Problems Network Connection Problems If the Link LED on the SMC2862W-G adapter does not light, or if you cannot access any network resources from your computer, check the following:
Make sure the correct software driver is installed for your operating system. If necessary, try reinstalling the driver. Make sure the computer and other network devices are receiving power. The access point you want to connect to may be defective. Try using another access point. Make sure the SSID and security settings of the adapter are set to the same as the access point to which you are connecting. If your wireless station cannot communicate with a computer in the Ethernet LAN when configured for Infrastructure mode, check the following:
Make sure the access point that the station is associated with is powered on. If the connection still fails, change the access point and all the clients within the BSS to another radio channel. For a station with roaming disabled, make sure the SSID is the same as that used by the access point, or the same as that used by the access points in the extended service set (ESS). 35 SPECIFICATIONS General Specifications Functional Criteria Data Rate 802.11g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps 802.11b: 1, 2, 5.5, 11 Mbps Operating Range Up to 350 m (1155 ft) Radio Signal Signal Type Orthogonal Frequency Division Multiplexing (OFDM) Direct Sequence Spread Spectrum (DSSS) Modulation Techniques 802.11g (OFDM): BPSK, QPSK, 16-QAM, 64-QAM 802.11b (DSSS): Complementary Code Keying (CCK) Channel Support FCC: 1-11 ETSI: 1-13 MKK: 1-14 RF Output Power 16 dBm Physical Characteristics Power Consumption Tx mode: 485mA, Rx mode: 330 mA Dimensions 84.01 *27.08* 12.00 mm (L*W*H) Weight 27.5 g 36 General Specifications Antenna Built-in antenna LED Indicators Network Link Host Interface 32-bit 2.0 USB interface Power Voltage 3.3 Volt +/- 5%
Standards Conformance IEEE 802.11g IEEE 802.11b Environmental Temperature Operating: 0 to 55 C (32 to 122 F) Storage: -20 to 65 C (32 to 158 F) Humidity 5 to 95% (non-condensing) Certification CE Mark EN50081-1, EN55022 Class B, EN50082-1, IEC 61000-4-2, IEC 60601-1-2 Safety Compliance USA: FCC Part 15 Class B UL1950/CSA22.2 No.950 IEC 60950 Software Drivers Windows 2000 Windows XP 37 Specifications 38 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:
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34 -93-477-4920;
216-712-36616;
34 93 477 4920;
7 (095) 7893573;
86-10-6235-4958;
886-2-8797-8006;
(65) 238 6556;
82-2-553-0860;
81-45-224-2332;
61-2-8875-7887;
91-22-8204437;
Fax (949) 679-1481 Fax 34-93-477-3774 Fax 44 (0) 118 974 8701 Fax 33 (0) 41 38 01 58 Fax 39 02 739 14 17 Fax 31 33 455 73 30 Fax 49 (0) 89 92861-230 Fax 46 (0) 887 62 62 Fax 34 93 477 3774 Fax 216-71751415 Fax 34 93 477 3774 Fax 7 (095) 789 35 73 Fax 86-10-6235-4962 Fax 886-2-8797-6288 Fax (65) 238 6466 Fax 82-2-553-7202 Fax 81-45-224-2331 Fax 61-2-8875-7777 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: SMC2862W Revision number: E102004-R01 V1.0
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