SMC Networks 2.4GHz User's Manual
Contents
1. Step 3 The system should find the drivers Click the Next gt button to continue the installation Note If the system could not find the drivers click the lt Back button and select the Display a list of all the drivers option Select Network Adapters from the list of devices press Have Disk and once again browse to the location of the drivers Step 4 Once all the necessary files have been copied the driver installation is complete Click Finish to exit the wizard Step 5 You will then be prompted to reboot the machine Press Yes Upon reboot the SMCWUSB32 will be initialized and ready for use 5 WLAN Driver Utility Installation Step 1 Insert the SMCWUSB32 EZ Installation Wizard and Documentation CD Step 2 Click the Install Driver Utility button EZ Connect 11 Mbps Wireless USB Flash Drive SMC Networks m Install Driver Utility E Install Adobe Acrobat Reader 5 E View User Guide pdf E Visit www smc com Step 3 Please wait while the utility checks your Operating System Version and prepares to install the SMCWUSB32 InstallShield Wizard Preparing to Install SMCWUSB32 WLAN Setup is preparing the InstallShield Wizard which will guide you through the program setup process Please wait Checking Operating System Version Step 4 Click the Next button to continue SMCWUSB32 WLAN Installation x Welcome to SMHCWUSB32 WLAN Setup The2. SMGEWUSB3e EZ Gonnect 2 4GH2 Wireless USB Flash Drive 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 California 92618 All rights reserved Trademarks SMC is a registered trademark and EZ Stream EZ Connect Barricade and EZ Hub are trademarks of SMC Networks Inc Other product and company names are trademarks or registered trademarks of their respective holders Compliances 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
3. If you encounter a problem with the SMCWUSB32 use the following checklists to identify and correct the problem If you re computer cannot find the SMCWUSB32 or the network driver does not install correctly check the following items before contacting SMC Technical Support o Make sure the adapter is securely seated in the USB slot Check for any hardware problems such as physical damage to the card s edge connector o Try the card in another USB slot If this fails test the card in a completely different system or try using a second SMCWUSB3z2 in that particular USB slot o Make sure your computer is using the latest BIOS available Contact the manufacturer of the computer or motherboard for information on updating the BIOS e g Dell Toshiba etc o If there are other network cards in the computer they may be causing conflicts Remove all other cards from the computer and test the SMCWUSB32 separately Network Connection Problems There may be a network connection problem if the LED on the card does not light or if you cannot access any network resources from the computer Check the following items before contacting SMC Technical Support Make sure the correct network card driver is installed for your operating system If necessary try uninstalling and reinstalling the driver To do this first go into the Device Manager select Network Adapters and remove the SMC adapter Then open up your Start Menu go to Programs click the SMC
4. unauthorized access C Allow me to connect to the selected wireless network even though it is not secure If you are having difficulty connecting to a network click Advanced Advanced Connect Cancel 3 You should see the SSID of your Wireless Base Station or adhoc network in the Available wireless networks window High light the desired network 4 If the network is not encrypted you need to check the Allow me to connect checkbox in order for the Connect button to appear After that click Connect You will now be connected to your wireless network If you have advanced security such as WEP or WPA select the Advanced button in the Wireless Network Connection window to continue Wireless Network Connection 9 Properties AXi General Wireless Networks Advanced Available networks To connect to an available network click Configure 2804WBR a i SMC mi Preferred networks Automatically connect to available networks in the order listed below Add Remove Properties Learn about setting up wireless network configuration 5 Select your desired network from the Available wireless networks window and then click Configure Wireless network properties Association Authentication Network name SSID 2804 WBR Wireless network key This network requires a key for the following Network Auth
5. B digital device SMC requires that you use a quality interface cable when connecting to this device Changes or modifications not expressly approved by SMC could void the user s authority to operate this equipment Attach unshielded twisted pair cable UTP to the RJ 45 port and shielded USB cable to the USB port 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 num rique respecte les limites de bruits radio lectriques applicables aux appareils num riques de Classe B prescrites dans la norme sur le mat rial brouilleur Appareils Num riques NMB 003 dict e par l Industrie EC Conformance Declaration Class B SMC contact for these products in Europe is SMC Networks Europe Edificio Conata IT Calle Fructuos Gelabert 6 8 20 4a 08970 Sant Joan Despi Barcelona Spain This information technology equipment complies with the essential requirements of the R amp TTE Directive 1999 5 EC and all other related provisions of this directive Important Safety Notices Unplug this product from the AC power before cleaning Do not use liquid cleaners or aerosol cleaners Use a dry cloth for cleaning Route the power supply cords so that they are not likely to be walked on or pinched by items placed upon or again
6. Installation NOTE Installation processes may require the use of your original licensed copy of Windows Please have your Windows CD available BEFORE proceeding with the installation The following instructions are for Windows 98SE Me Under Windows 2000 XP your Flash Drive should be automatically installed once you plug the SMCWUSB32 into your USB port Windows 98SE Step 1 After you have inserted the SMCWUSB32 into your USB port the Operating System will recognize the adapter and prompt you for the appropriate drivers Click the Next gt button to begin the installation Step 2 Insert the EZ Installation Wizard and Documentation CD and select the Search for the best driver for your device option and click Next gt Step 3 Clear all checkboxes except for Specify a location Then press the Browse button and look for the drivers on your CD ROM Browse to Flash Driver Note The equals the letter of your CD ROM drive In most cases this is D Add New Hardware Wizard Windows wil search for updated divers in ts diver on your hard drive and in any of the following selected locations Click Next to start the search I Floppy disk drives I CD ROM drive Specify a location z Browse Te Step 4 The system should find the drivers Click the Next gt button to continue the installation The wizard will show UStorage Drive Step 5 Once the system has copied the SMC drivers
7. from the CD it may then request files from your original Windows disk Please insert the Windows CD at this time Add New Har Wizard Windows driver file seach for the device Source EA Destination CAWINDOWS SYSTEM fot this ot cick Ned Step 6 The system will copy the files Do NOT press Cancel Step 7 Once all the necessary files are copied from the Windows CD the driver install process will be complete Click Finish to exit the wizard Step 8 You will then be prompted to reboot the machine Press Yes Upon reboot the SMCWUSB32 will be initialized and ready for use Windows ME Step 1 After you have inserted the SMCWUSB32 in your machine and turned it back on the OS will automatically recognize the adapter and prompt you for the appropriate drivers Select the Specify the location of the driver option Then click the Next gt button to begin the installation Step 2 Insert the Driver CD and select the Specify a location option Clear the Removable Media checkbox Then press the Browse button and look for the drivers on your CD This should be located in Flash Driver Note The equals the letter of your CD ROM drive In most cases this is D Then click Next gt Add New Hardware Wizard Windows wil seatch for new drivers in ts driver database on your hard drive and in any of the folowing selected G A gah Ar ETE E r Removable Media Floppy CD ROM
8. interframe coding which can help to further compress the video data thereby reducing the overall size of the video NAT Network Address Translation This process allows all of the computers on your home network to use one IP address The NAT capability of the Barricade allows you to access the Internet from any computer on your home network without having to purchase more IP addresses from your ISP Network Address Translation can be used to give multiple users access to the Internet with a single user account or to map the local address for an IP server Such as Web or FTP to a public address This secures your network from direct attack by hackers and provides more flexible management by allowing you to change internal IP addresses without affecting outside access to your network NAT must be enabled to provide multi user access to the Internet or to use the Virtual Server function Packet Binary Convulational Code tm PBCC A modulation technique developed by Texas Instruments Inc TI that offers data rates of up to 22Mbit s and is fully backward compatible with existing 802 11b wireless networks PCI Peripheral Component Interconnect Local bus for PCs from Intel that provides a high speed data path between the CPU and up to 10 peripherals video disk network etc The PCI bus runs at 33MHz supports 32 bit and 64 bit data paths and bus mastering PPPoE Point to Point Protocol over Ethernet Point to Point Protocol is a
9. method used by all 802 11b wireless networking devices In most cases you will not need to activate or administer RTS Only if you find yourself in an Infrastructure environment where all nodes are in range of the Access Point but may be out of range of each other It is recommended to leave this setting at its default value leaving this feature disabled What is Authentication Algorithm 0 Authentication Algorithm is the means by which one station is authorized to communicate with another In an Open System any station can request authorization in accordance with the WECA standard In a Shared key system only stations that possess a secret encrypted key may participate in the network This is a low level security key which allows the equipment with the shared key algorithm to see each other on the wireless LAN What is DBI 0 The ability of the antenna to shape the signal and focus it in a particular direction is called Antenna Gain and is expressed in terms of how much stronger the signal in the desired direction is compared to the worst possible antenna which distributes the signal evenly in all directions an Isotropic Radiator To express the relationship to the Isotropic reference this is abbreviated dBi The typical omni directional stick antenna is rated at 6 8 dBi indicating that that by redirecting the signal that would have gone straight up or down to the horizontal level 4 times as much signal is available horizonta
10. verify the network settings and check to be sure that the Wireless Access Point on your network is turned on You may also need to re position the Access Point and place it in a higher position so that you are able to gain more wireless signal strength Double click the quick launch icon in the system tray to bring up the Configuration Utility This provides quick access to management statistics and adapter settings The Configuration Utility includes the following tabs Status Allows you to view monitor network status throughput wireless channel and TCP IP Information Profile Allows you to implement Profile Management edit SSID data change the Tx Rate and Operating mode and enable 64 128 bit WEP Survey Displays all the Access Points within range of the wireless adapter s signal Allows you to select your desired WLAN Statistics Displays Transmit Receive and other data used for management and troubleshooting About Shows the driver and utility version information Section 1 1 Status SMCWUSB32 11Mbps WLAN Monitor S xi Status Profile Survey Statistic About r Connection Setting Profile Name Default Disable Connection r Connection Status SSID State Connected Mode Access Point Channel 6 Setting Tx Rate 11 Mbps Power SavingMode Disable This tab will show you the current profile of the wireless card Click Disable Connection to enti
11. your wireless devices often transmit large files in wireless network you can enable the Fragmentation Threshold and the mechanism will split the packets being sent Section 1 3 Survey The Survey tab supports a powerful Site Survey tool to discovery all active wireless devices in the radio range After selecting this other wireless devices are displayed on the screen Users can press the Connect button to quickly connect to the wireless device chosen and simultaneously modify the Default profile automatically If users want to update the survey result they can press Rescan button again SMCWUSB32 1 1Mbps WLAN Monitor Networks Status Profile Survey Statistic About 556 8550 Mode WEP Cha Sign SMCAP 00 04 E2 0E B7 Infrastruct No 1 100 SMCAP 00 04 E2 0E 7A Infrastruct No 6 100 SMCAP 00 04 E2 0E 7C Infrastruct No 3 52 gt Connect Rescan Section 1 4 Statistics The Statistics tab is used to monitor TX and RX traffic of the wireless network It also offers the detailed information on error packets Each time users switch to this page the statistics will start counting from zero Users can press Reset button if they want to restart the counter again If users want to temporarily freeze the current counters they can press Pause button SMCWUSB32 11Mbps WLAN Monitor x Status Profile Survey Statistic About m Tx Count Rx
12. Count Byte 9907 Byte 4052 Fragments 92 Fragments 522 Unicast Packets 68 Unicast Packets 46 Single Retries 1 Multiple Retries 0 Retry Limit Exceeded 9 Deffered Transmissions 73 WEP Undecryptable No Buffer Discarded 0 Time Elapse 00 00 02 Section 1 5 About The About screen displays the version information and MAC address SMCWUSB32 11Mbps WLAN Monitor FE Networks Status Profile Survey Statistic SMC Networks Inc Natworka http www sme com r Wireless LAN Manager Utility Version 1 0 Driver Version 3 0 2 Jan 17 2003 Network Card MAC Address 00 0c 20 00 2c cd USING WIRELESS ZERO CONFIGURATION 1 After completing the driver installation in Windows XP the Wireless Zero Configuration will automatically be enabled You will see a new wireless network connection in the bottom right hand corner of your taskbar 2 If you are not automatically connected to your wireless network click on the wireless network icon in the system tray Wireless Network Connection 9 x The following wireless network s are available To access a wireless network select it from the list and then click Connect Available wireless networks 1 2804WBR lal i SMC E 1 7804WBRA iv This wireless network is not secure Because a network key WEP is not used for authentication or for data encryption data sent over this network might be subject to
13. InstallShield Wizard will install SMC WUSB32 WLAN on your computer To continue click Next Step 5 Choose the folder where the utility setup files will be installed It is recommended to leave this value at its default setting Click Next to continue Choose Destination Location Select folder where Setup will install files Setup will install SMCWUSB32 WLAN in the following folder To install to this folder click Next To install to a different folder click Browse and select another folder Destination Folder E Program Files SMC SMCWUSB32 WLAN Utility Browse InstallShield The program files will now be copied Please wait Step 6 Please restart your computer to finish the installation of the SMCWUSB32 SMCWUSB32 WLAN Installation SMCWUSB32 WLAN Setup Complete Do you want to restart your computer No will restart my computer later Remove any disks from their drives and then click Finish to complete setup Back Finish Cancel 6 Utility Configuration NOTE The following applies to Windows 98SE Me 2000 Under Windows XP please use the Wireless Zero Configuration tool built into Windows XP to configure your SMCWUSB32 When the utility program is running there will be a quick launch icon in the lower right hand corner of the taskbar The icon will be GREEN if you have a good connection to a wireless network If it is red you will need to
14. WUSB32 WLAN Utility program folder and choose Uninstall Reboot the machine when the uninstall is complete Once you have booted up again the OS may ask for the SMC Driver CD again Insert your Driver CD and browse to the driver path again Then install the utility program again If you are using Windows XP and you cannot get the Wireless Zero Configuration to start or you simply do not see any wireless functionality on your system the service may have been disabled by a third party application Please check with Microsoft for assistance on re enabling the service Make sure the computer and other network devices are receiving power If you suspect a power outlet to be faulty plug another device into it to verify that it is working If your wireless station cannot communicate with a computer on the Ethernet LAN when configured for Infrastructure mode try changing the wireless channel on the AP Make sure the SSID is the same as that used by the AP for a station with roaming disabled or the same as that used by the AP s in the extended service set ESS The Access Point you are trying to attach to is defective or may not be configured properly to accept your signal Check with the administrator of your wireless network for more information on connecting to the LAN Also run the necessary diagnostics on the AP to make sure the unit is fully operational If you cannot access the Internet be sure to check with the ISP for further instructions on
15. acket sequence checking and error notification must be written into the applications mceurope com pdates wi i iae AER m action tech_support_ europe com 0 HEELS WWY SMC o 511 Networks 38 Tesla E OST Irvine CA 926 18 Model Number SMCWUSES2 Phone 949 679
16. ata rate in the 2 4GHz band and the 802 113 standard defines 54 Mbps in the 5GHz band e What is Infrastructure 0 In order for your wireless components to interact with traditional wired networks they need a media bridge to translate for them This is where INFRASTRUCTURE or Network mode comes into play An ACCESS POINT is attached to the network using CAT 5 Ethernet cable attaching to a hub switch or another PC Wireless PC s can then communicate to Wired Ethernet computers through this access point The total range of the network is limited to a radius around this Access Point To increase the range extra Access Points may be wired into the network These Access Points talk to each other over the hard wired Ethernet cables however they cannot communicate wirelessly to one another and they must be wired to the same network Individual wireless PC s can move between Access Points on the same network seamlessly due to a feature called ROAMING e What is Tx Rate 0 Tx Rate or TRANSFER RATE is the current speed at which the network component is operating SMC 802 11b products can operate at speeds of 1Mb 2Mb 5 5Mb amp 11Mbps A wireless card set to AUTO will attempt to connect at whatever speed will give the best throughput on the network e What is RTS Threshold 0 Request To Send An 855 232 signal sent from the transmitting station to the receiving station requesting permission to transmit RTS is a collision avoidance
17. can 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 802 11b Wireless Distance Table Environmental 8 Condition Speed and Distance Ranges f ps 55 Mbps T Mbps Outdoors A line of sight environment with no interference or 160 m 195 m 255 m 350 m obstruction 528 ft 640 ft 837 ft 1 155 ft between the Access 72 m 73m 73m 75m 236 ft 240 ft 240 ft 246 ft 8 Troubleshooting If your computer cannot find the EZ Connect Wireless USB Adapter or the network driver does not install correctly check the following items Make sure the adapter is connected to the USB port Check for any hardware problems such as physical damage to the adapter s connector Try the adapter in another USB port If this also fails try using another SMCWUSB32 wireless adapter that is known to operate correctly Make sure your computer is using the latest BIOS If there are other network adapters in the computer they may cause conflicts Disable or remove all other adapters from the computer and test the wireless adapter separately Check for a defective computer or USB port by trying the adapter in another computer that is known to operate correctly Common Installation Problems Problems are often caused by cabling errors conflicts with other devices installed in the same computer or software that has been configured incorrectly
18. ce the drivers for the Wireless Card are installed properly 9 Frequently Asked Questions e What is a Wireless LAN 0 A local area network that transmits over the air typically in an unlicensed frequency such as the 2 4GHz band A wireless LAN does not require lining up devices for line of sight transmission like IrDA Wireless access points base stations are connected to an Ethernet hub or server and transmit a radio frequency over an area of several hundred to a thousand feet which can penetrate walls and other non metal barriers Roaming users can be handed off from one access point to another like a cellular phone system Laptops use wireless network cards that plug into an existing PCMCIA slot or that are self contained on PC cards while stand alone desktops and servers use plug in cards ISA PCI etc e What is Ad hoc 0 An AD HOC network is a peer to peer network where all the nodes are wireless clients As an example two PC s with wireless adapters can communicate with each other as long as they are within range A wireless extension point can extend the range of an AD HOC network e What is the 802 11 standard 0 A family of IEEE standards for wireless LANs first introduced in 1997 802 11 provides 1 or 2 Mbps transmission in the 2 4GHz band using either a frequency hopping modulation FHSS technique or direct sequence spread spectrum DSSS which is also known as CDMA The 802 11b standard defines an 11 Mbps d
19. each base station in turn is interconnected with other cells bases Bitmap A Windows and OS 2 bitmapped graphics file format Bitmap files provide formats for 2 16 256 or 16 million colors It uses the extension BMP 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 DHCP Dynamic Host Configuration Protocol This protocol automatically configures the TCP IP settings of every computer on your home network DNS DNS stands for Domain Name System which allows Internet host computers to have a domain name such as www smc com and one or more IP addresses such as 192 34 45 8 A DNS server keeps a database of host computers and their respective domain names and IP addresses so that when a domain name is requested as in typing www smc com into your Internet browser the user is sent to the proper IP address The DNS server address used by the computers on your home network is the location of the DNS server your ISP has assigned DSL DSL stands for Digital Subscriber Line A DSL modem uses your existing phone lines to transmit data at high speeds Ethernet A standard for computer networks Ethernet networks are connected by special cables and hubs and move data around at up to 10 million bits per second Mbps ESS ESS ESS ID SSID stands for Extended Service Set More than one BSS is conf
20. ented in the network adapters that are plugged into the machines The actual communications path is the cable twisted pair coax optical fiber that interconnects each network adapter MAC Address MAC Media Access Control A MAC address is the hardware address of a device connected to a network MDI MDI X Medium Dependent Interface Also called an uplink port it is a port on a network hub or switch used to connect to other hubs or switches without requiring a crossover cable The MDI port does not cross the transmit and receive lines which is done by the regular ports MDI X ports that connect to end stations The MDI port connects to the MDI X port on the other device There are typically one or two ports on a device that can be toggled between MDI not crossed and MDI X crossed Medium Dependent Interface X crossed A port on a network hub or switch that crosses the transmit lines coming in to the receive lines going out MP3 MPEG Audio Layer 3 This is an audio compression technology that is included in the MPEG 1 and 2 specifications MP3 encoding can allow you to compress CD quality sound by a factor of 12 MPEG Moving Pictures Experts Group MPEG is a standard for compressing video MPEG 1 can provide resolution of 352x240 at 30 frames second fps with 24 bit color and CD quality sound MPEG 2 can provide resolution of 704x480 MPEG uses the same intraframe coding as JPEG for individual frames but also uses
21. entication Data encryption O This is a computer to computer ad hoc network wireless access points are not used 6 You will be able to select the Network Authentication and Data encryption methods If you have 64 or 128 bit WEP enabled on your network set the Data encryption to WEP uncheck the The key is provided for me automatically box and enter your key in both the Network key and Confirm network key fields If you have WPA enabled on your network the common method is to set the Network Authentication to WPA PSK and set the Data encryption to TKIP Enter your network key and confirm it 7 Then press the OK button Now you will see the network s SSID listed in the Preferred Networks window You have basically created a Profile for the SMCWUSB32 to use Press OK to complete the network setup 7 Wireless 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 you can visit us at www smc com or you
22. ents of the box to be sure you have received the following components 1 SMCWUSB32 11 Mbps Wireless USB Flash Drive 1 EZ Installation Wizard and Documentation CD 1 Laptop Clip 1 USB Extension Cable 1 Quick Installation Guide Immediately inform your dealer in the event of any incorrect missing or damaged parts If possible please retain the carton and original packing materials in case there is a need to return the product Please register this product and upgrade the product warranty at SMC s Web site http www smc com 3 Installation Instructions Device Installation 1 2 3 4 Select an available USB port on the PC Make sure the cap of the SMCWUSB32 is pushed down so that the USB interface is clearly visible Carefully insert the USB adapter s Type A plug i e the flat plug into the USB port Press until it is firmly seated in the port Using the Laptop Clip and USB Extension Cable 1 2 3 4 5 Select an available USB port on the PC Make sure the cap of the SMCWUSB32 is pushed down so that the USB interface is clearly visible Hold the cap in place while sliding the Laptop Clip onto the cap of the SMCWUSB32 Make sure the Laptop Clip is held firmly in place Carefully insert the USB cable s Type A plug i e the flat plug into the USB port and press until it is firmly seated in the port Insert the other end of the cable into the SMCWUSB32 11 Mbps Wireless USB Flash Drive 4 Flash Drive
23. igured to become an Extended Service Set LAN mobile users can roam between different BSSs in an ESS ESS ID SSID Fast Ethernet NIC Network interface card that is in compliance with the IEEE 802 3u standard This card functions at the media access control MAC layer using carrier sense multiple access with collision detection CSMA CD Fixed IP see Static IP Full Duplex Transmitting and receiving data simultaneously In pure digital networks this is achieved with two pairs of wires In analog networks or digital networks using carriers it is achieved by dividing the bandwidth of the line into two frequencies one for sending one for receiving Hub Central connection device for shared media in a star topology It may add nothing to the transmission passive hub or may contain electronics that regenerate signals to boost strength as well as monitor activity active intelligent hub Hubs may be added to bus topologies for example a hub can turn an Ethernet network into a star topology to improve troubleshooting ID3 The data fields in an MP3 that hold the artist name track titles album titles genre etc are known as ID3 tags IP Address IP stands for Internet Protocol An IP address consists of a series of four numbers separated by periods that identifies an single unique Internet computer host Example 192 34 45 8 ISP Internet Service Provider An ISP is a business that provides connectivity to the Inte
24. lly A parabolic reflector design can easily achieve 24 dBi What is WEP 0 Short for Wired Equivalent Privacy WEP is a security protocol for wireless local area networks WLANs defined in the 802 11b and 802 11a standards WEP is designed to provide the same level of security as that of a wired LAN LANs are inherently more secure than WLANs because LANs are somewhat protected by the physicalities of their structure having some or all part of the network inside a building that can be protected from unauthorized access WLANs which are over radio waves do not have the same physical structure and therefore are more vulnerable to tampering WEP aims to provide security by encrypting data over radio waves so that it is protected as it is transmitted from one end point to another The Wired Equivalent Privacy WEP feature uses the RC4 PRNG algorithm developed by RSA Data Security Inc If your wireless access point supports MAC filtering it is recommended that you use this feature in addition to WEP MAC filtering is much more secure than encryption 10 Technical Specifications Standards IEEE 802 11b compliant Wireless Data Rates With Automatic Fall back 1 2 5 5 11 Mbps Data Modulation Techniques DBPSK DQPSK CCK Host Interface USB 1 1 Operating Range Up to 1 155 ft Network Configuration Ad Hoc Peer to Peer Infrastructure Radio Signal Type Direct Sequence Spread Spectrum DSSS Media Access Protoc
25. method of secure data transmission originally created for dial up connections PPPoE is for Ethernet connections Roaming A function that allows your to move through a particular domain without losing network connectivity Static IP If your Service Provider has assigned a fixed IP address enter the assigned IP address subnet mask and the gateway address provided by your service provider Subnet Mask A subnet mask which may be a part of the TCP IP information provided by your ISP is a set of four numbers configured like an IP address It is used to create IP address numbers used only within a particular network as opposed to valid IP address numbers recognized by the Internet TCP IP Transmission Control Protocol Internet Protocol This is the standard protocol for data transmission over the Internet TCP Transmission Control Protocol TCP and UDP User Datagram Protocol are the two transport protocols in TCP IP TCP ensures that a message is sent accurately and in its entirety However for real time voice and video there is really no time or reason to correct errors and UDP is used instead UDP User Datagram Protocol A protocol within the TCP IP protocol suite that is used in place of TCP when a reliable delivery is not required For example UDP is used for real time audio and video traffic where lost packets are simply ignored because there is no time to retransmit If UDP is used and a reliable delivery is required p
26. ol CSMA CA Collision Avoidance Security 64 128 bit WEP Wi Fi Protected Access WPA Channel Support 2 4GHz RF US Canada 11 France 4 Japan 14 Europe 13 RF Output Power 16 dBm max Data Retention Period 10 Years Erase Cycles 1 Million instances Shock Resistance 1000g Power Consumption TX Power Consumption lt 310mA RX Power Consumption lt 300mA Read Transfer Power Consumption lt 26mA Write Transfer Power Consumption lt 300mA Sleep Mode Power Consumption lt 150mA Flash Memory Size 32MB Flash Memory Transfer Read Transfer 900KB s Write Transfer 500KB s Operating Systems Windows 98SE Me 2000 XP Antenna Type Built in LED Indicators Network Link Compliance USA FCC Part 15 Class B Europe CE Mark ETSI 300 328 ETSI 300 826 Industry Canada IEC 60950 Temperature Range Operating 0 C 55 C Storage 20 C 80 C Humidity 5 80 Available in Windows XP via Wireless Zero Configuration 11 Terminology 10BaseT Physical Layer Specification for Twisted Pair Ethernet using Unshielded Twisted Pair wire at 10Mbps This is the most popular type of LAN cable used today because it is very cheap and easy to install It uses RJ 45 connectors and has a cable length span of up to 100 meters There are two versions STP Shielded Twisted Pair which is more expensive and UTP Unshielded Twisted Pair the most popular cable These cables come in 5 different ca
27. or a 128 bit WEP configuration For ASCII Key Format the security is enabled by entering five alphanumeric characters for the 64 bit WEP configuration and 13 alphanumeric characters for the 128 bit WEP configuration Select the desired encryption strength 64 bit or 128 bit and then enter the appropriate keys in Key 1 2 3 or 4 Remember to select the correct Default Key You can also check the Passphrase option and enter the desired value You must be sure to use the same passphrase on all other wireless clients Access Points zi r Threshold I Enable RTS Threshold Enable Fragment Threshold Threshold 2345 Cancel RTS Threshold This field allows you to select enable or disable When the field is set to Enabled you can adjust the value between 0 to 3000 RTS threshold is a mechanism implemented to prevent the Hidden Node problem Hidden Node is a situation in which two stations are within range of the same access point but are not within range of each other Thus it provides a solution to prevent data collisions However enabling RTS Threshold may cause redundant network overhead that could negatively affect the throughput performance Fragment Threshold This field allows you to select enable or disable When the field is set to Enabled you can adjust the value between 256 to 2346 Fragmentation mechanism is used for improving the efficiency when high traffic flows along in the wireless network If
28. 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 e Reorient the receiving antenna e Increase the separation between the equipment and receiver e 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 for 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 CAUTION 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 5 centimeters between the radiator and your body This transmitter must not be co located or operating in conjunction with any other antenna or transmitter Note In order to maintain compliance with the limits of a Class
29. rely halt all wirelessly functionality of the SMCWUSB32 Click Reset to reboot your SMCWUSB32 Section 1 2 Profile SMCWUSB32 11Mbps WLAN Monitor xi Networks Status Profile Survey Statistic About Profile Name Default z SSID ANY Mode Access Point x Tx Rate fi Mbps x FT Power Saving Mode Advanced Encryption Remove Profile Restore Defaults ce ww The Profile tab allows to create or delete profiles and configure the wireless network settings The options for Mode include Infrastructure Access Point and Adhoc Peer to Peer Adhoc networks consist of wireless clients only In Infrastructure networks wireless clients connect to wired LANs via Wireless Access Points The Tx Rate allows you to manually set your Transmission speed over the wireless network the options are 1Mbps 2Mbps Auto 1 or 2Mbps 5 5Mbps 11Mbps or Fully Automatic Profile Encryption Setting xi Encryption WEP security Disable bi Disable m Create Key WEP Keys Manual Her Passphrase yg Active Key Keyl Cancel For more secure data transmissions it is recommended to enable WEP on your WLAN Click the Encryption button to get to this configuration The utility supports HEX or ASCII key entries For the HEX Key Format the security is enabled by entering 10 digit keys for the 64 bit WEP configuration and 26 digit keys f
30. rnet for individuals and other businesses or organizations JPEG Joint Photographic Experts Group JPEG is a standard for compressing still images and it provides compression with ratios up to 100 1 File extensions are JPG or JPEG LAN A communications network that serves users within a confined geographical area It is made up of servers workstations a network operating system and a communications link Servers are high speed machines that hold programs and data shared by network users The workstations clients are the users personal computers which perform stand alone processing and access the network servers as required Diskless and floppy only workstations are sometimes used which retrieve all software and data from the server Increasingly thin client network computers NCs and Windows terminals are also used A printer can be attached locally to a workstation or to a server and be shared by network users Small LANs can allow certain workstations to function as a server allowing users access to data on another user s machine These peer to peer networks are often simpler to install and manage but dedicated servers provide better performance and can handle higher transaction volume Multiple servers are used in large networks The message transfer is managed by a transport protocol such as TCP IP and NetBEUI The physical transmission of data is performed by the access method Ethernet Token Ring etc which is implem
31. st them Pay particular attention to cords at plugs convenience receptacles and the point where they exit from the product Situate the product away from heat sources such as radiators heat registers stoves and other products that produce heat To prevent fire or shock hazard do not expose this unit to rain or moisture Do not allow water or any foreign objects to enter the interior This may cause a fire or electric shock In the event that water or other foreign objects get into the product immediately unplug the AC adapter from the electrical outlet and contact Customer Service for inspection and or repair replacement options Do not take apart the equipment This may cause fire electric shock or other injuries Do not overload wall outlets and extension cords as this can result in a fire or electric shock This product is for use with the AC adapter that comes with it Use with any other AC power is strongly discouraged as it may cause fire electric shock or damage to the equipment 1 System Requirements An available USB port Windows 98SE Me 2000 XP A minimum of 10 MB of free disk space for installing the driver and utility program Another IEEE 802 11b or 802 11g compliant device installed in your network such as the SMC7004VWBR Barricade Wireless Broadband Router or another PC with a wireless adapter 2 Equipment Checklist After unpacking the SMCWUSB32 EZ Connect 11 Mbps Wireless USB Flash Drive check the cont
32. tegories However only 3 are normally used in LANs Category 3 4 and 5 CAT 3 TP Twisted Pair cable has a network data transfer rate of up to 5 1011 CAT 4 TP cable has a network data transfer rate of up to 16Mbps CAT 5 TP cable has a network data transfer rate of up to 100Mbps Access Point A device that is able to receive wireless signals and transmit them to the wired network and vice versa thereby creating a connection between the wireless and wired networks Ad Hoc An ad hoc wireless LAN is a group of computers each with LAN adapters connected as an independent wireless LAN Adapter A device used to connect end user nodes to the network each contains an interface to a specific type of computer or system bus e g EISA ISA PCI PCMCIA CardBus etc Auto Negotiation A signaling method that allows each node to define its operational mode e g 10 100 Mbps and half full duplex and to detect the operational mode of the adjacent node 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 radiotelephone sets within its range In cellular and personal communications applications each cell or micro cell has its own base station
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