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Table of contents for the manual
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54Mbps Wireless LAN Card User ’ s Manual[...]
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2003 All righ ts reserv ed. No part of this docu men t may be reproduced or tran smitted in any form or by any means, electron ic or mechanical, f or any pu rpose, without th e express written permi ssion of the s eller. Disclaimer Inform ation in this docum ent is subject to change w ithout notice. The material contain ed herein is supplied w [...]
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A bout This Manual This manual w as w ritten for the follow ing ty pes of wireless adapter: • 32-bit CardBus Adapter • PCI Adapter • Mini PCI A dapter For b revit y, thr o ugho ut t hi s manua l Wireless LAN Ca rd is used to i ndicate all the t ypes. Also, the follow ing term s/abbreviations are used interchan geably: • Access Point – AP [...]
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802.11g Draft Complian ce No tice Please be note d that th is w ireless device su pports onl y draf t-lev el 802.11g specif ication . At of the tim e of the release of this produ ct, 802.11g rem ains in draft f orm, w hich has yet t o be finalized an d ratified by IEEE.[...]
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I Contents Chapter 1 Introduction ........................................................................................................ ....................................... 1 W ireless LAN Basics ............................................................................................................ .......................................[...]
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54Mbps W ireles s LAN Card Us er's Manual II Site Moni tor Tab ............................................................................................................... ......................................... 27 About T ab ..................................................................................................................[...]
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Contents III FCC Rules and Re gulation s - Part 15 ............................................................................................ ........................... 58 FCC Radiation Exposure S tatement ............................................................................................... .......................... 59 Appendix C Sett[...]
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54Mbps W ireles s LAN Card Us er's Manual IV List of Figures Figure 1-1 Ad-Hoc Mode ........................................................................................................ ............................... 3 Figure 1-2 Inf rastructure Mode ..........................................................................................[...]
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1 Chapter 1 Introduction This W ireless LA N Card is an IEEE 802.1 1g wi reless L AN adapter . 802.1 1g is the lates t in th e series of 802.1 1 specificat ions f or wirel ess local area n etw orks (WLA Ns) an d provides data transf er of up t o 54 Mbps. Since 802.1 1g draft operates on the s ame f requency of 2.4 GHz as 802.1 1b, so it is backw ar[...]
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54Mbps W ireles s LAN Card Us er's Manual 2 Wireless LA N Basics This section contains some Wireless LA N basics to help you better understand how the product w ork togeth er to create a wireles s netw ork. Local A rea Netw ork (LAN ) Simply put, a LAN is a n etwork that ex ists in a relatively limited area. A n etwork is tw o or more com pute[...]
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Chapter 1 Intr oduction 3 A d-Hoc Mode The Ad-Hoc Grou p offers peer-to-peer con nections betw een works tations, allow ing comm unication betw een compu ters with in range that h ave a Wireless LAN Card installed. A w ireless Ad- Hoc netw ork can also acces s a w ired LAN’ s TCP/IP service (such as e-m ail and the Intern et) by u sing a TCP/IP s[...]
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54Mbps W ireles s LAN Card Us er's Manual 4 Infrastruct ure M ode The I nfrast r ucture ne twork uses an AP or se veral AP s as a gat eway, linking the wirele ss netw ork to a wired L AN. A s a resu lt, portable w orkstations or desktops on you r w ireless netw ork hav e access to all of the f eatures of y o ur wired LA N including e-m ail, In[...]
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Chapter 1 Intr oduction 5 Roaming Multiple Access Points can be installed to extend the w ireless service coverage area for seam less w ireless access. Within an extended serv ice area, all Access Points an d wireles s clients m ust have the sam e Service Set Identity (SSID). Roaming among dif ferent Access Points is controlled automatically to m a[...]
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7 Chapter 2 Installing the Wireless LA N Card This chapter describes the installation process o f the driver and softw a re for the Wireless LAN Card. Prop e r d r iver installation is to allow the device to operate on your h ost computer w hile the utility softw are, Wireless LAN Utility , is to help you configu re and monitor y our Wireless LAN C[...]
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54Mbps W ireles s LAN Card Us er's Manual 8 Sy stem Requirements To use the Wireless LA N Card, y our comput er mus t meet th e follow ing m inim um requiremen ts: ! Pentium -class PC, 300MHz or better recom men ded ! 64 MB o f RAM, additional m emory recomm ended ! Hard disk space at least 30 Mby tes ! Window s 98(SE)/Me/2000/XP ! UL list[...]
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Chapter 2 Installing the W ireless LAN Card 9 Installing Wireless LA N Driver and Soft w are This section describes how to install the Wireless LAN Card driver and softw are. Basic Instal l at ion Procedures Window s 98, Me, 2000 and XP use th e sam e setup prog ram; how ever, operati on system -specific situ ation may occur during or after the in [...]
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54Mbps W ireles s LAN Card Us er's Manual 10 2. Insert th e provided So ftw are Utility CD in to your CD-ROM drive an d select Utility&Driver . Or, run Setup.exe from D : Utility&Driver of the Software Utility CD w here D is the drive letter. 3. Wh en the w elcome screen pops up, clic k Next . 4. When the License Agreem ent screen app[...]
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Chapter 2 Installing the W ireless LAN Card 11 5. To install the softw are to the default destination folder, click Next . If y ou are to install the softw are to a different f older, click Browse to select an other folder, and th en click Next . 6. For C ardBus w ireless adapter only , the followin g screen w ill pop up asking y ou to ins ert you [...]
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54Mbps W ireles s LAN Card Us er's Manual 12 7. For MiniPCI wireless adapter only , if y ou are prompted with the screen below , click Next . 8. Click Finish wh en the f ollowin g screen appears. Su bject to the type of your Wireless LA N Card, th e Window s may reboot.[...]
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Chapter 2 Installing the W ireless LAN Card 13 Genera l Guideline s for OS-S pecific S ituation s Subject to your Windows OS and Wireless LA N Card, different situations w ill occur during or after the softw are installation. Follow th ese instructions to complete the installation. For Win dows 98(SE ) ! When prom pted for Wi ndow s 98(SE) C D-RO M[...]
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54Mbps W ireles s LAN Card Us er's Manual 14 For Wind ows XP ! If Windows logo compatibility message appears, click Continue Anyw ay . ! When Win dows OS pops u p a dialog box requ estin g for driv er, select Install the software autom atically and click Nex t . ! If prom pted for the dri ver. Cli ck OK then click Browse to locate the director[...]
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15 Chapter 3 Using Wireless LA N Utility Once you r wireless adapter softw are is properly installed, the provided W ireless LAN Utility is ready for u se. The utility com es with five tabs. The Link Status tab disp lays the current link status. The Co nfiguratio n tab al lows configur ing your wirele ss conne c tion. The Encryption tab allow s sec[...]
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54Mbps W ireles s LAN Card Us er's Manual 16 A ccessing Vendor’s Wireless LA N Utility To access W ireless LAN Utility , go to W indo ws Start menu, select Programs, WL AN Utility, and then, WLAN Utility . The Wireless LA N Utility s creen pops up w ith fi ve available tabs: Link Status , Configurat io n, Encryption, Site M onito r and About[...]
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Chapter 3 Using W ireless LAN Utility 17 Notice When A ssessing Wireless LAN Utility under Windows XP Aside from using th e vendor’s w ireless LAN utility for co nfiguration, Windows XP includes a Wireless Z ero Configuration Utility for you to configur e your wire l ess ada pte r . By de fault, your w ireless adapter is managed by Windows XP-inc[...]
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54Mbps W ireles s LAN Card Us er's Manual 18 Using Vendor’s Wireless LAN Utility To use the vendor’s WLAN u tility f or configuration purposes, you should disable the Windows XP-included wireless u tility by th ese steps: 1. Double-click the Window s XP wireless tray icon and then click Properties (or Advanced ). Then s elect Wireless Netw[...]
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Chapter 3 Using W ireless LAN Utility 19 Reverting back to Windows XP-included Wireless Utility Double-click the Window s wireless icon (not the vendor’s WLA N utility icon) an d then click Advanced (or Properties ). Click the Wireless Network s tab and check the Use Windows to configure m y wireless network settings box and click OK . Link Statu[...]
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54Mbps W ireles s LAN Card Us er's Manual 20 Screen Item Description Link Qu ality Measures quality of the link . Signal Str ength Displ a ys the signal stre ngth in dB m and by grap hi c . State Displays current statu s such as scannin g or a succes sful as sociation. In addition, you can f ind three icons at the button on th is tab wh ich pe[...]
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Chapter 3 Using W ireless LAN Utility 21 Figure 3 -1 Link Stat us T ab[...]
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54Mbps W ireles s LAN Card Us er's Manual 22 Configuration Tab The Configuration tab allows you to config ure the parameters f or the wi reless adapter. Screen Item Description Pro file Na me Name of your c urrent se ttings. Operating Mode Infras tructu re or Ad-Hoc (peer- to-peer). Network Nam e Specifies the nam e of the WLA N group you w an[...]
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Chapter 3 Using W ireless LAN Utility 23 Screen Item Description Peer-to-Peer Chan nel Select the chann el for y our wi reless netw ork (A d-Hoc m ode ONL Y). Note that the available ch annels are dif feren t according to y our geographic location. Make sure to select the legal f requency channel s allo wed in your r e gulato ry domain. ! 1-11 chan[...]
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54Mbps W ireles s LAN Card Us er's Manual 24 Figure 3-2 Co nfigurat ion Tab[...]
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Chapter 3 Using W ireless LAN Utility 25 Encry ption Tab In the Encryption tab you m ay take additional m easures to secure your netw o r k by using WEP (Wired Equivalent Privacy ). If encry ption is not n ecessary , just select Disable from the Encryption (WEP security) drop dow n menu . To enable WEP, take the steps below : 1. Select 64 bits or 1[...]
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54Mbps W ireles s LAN Card Us er's Manual 26 Figu re 3- 3 Encry ption Tab 4. From the Use WEP Key list select which key y ou w ant to use to encry pt your transm itting data. 5. Af ter you f inished all the encry ption settings, click Apply to activate the chang es. Note: When setting WEP keys for data encryption, all the w ireless stations an[...]
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Chapter 3 Using W ireless LAN Utility 27 Site Monitor Tab The Site Monito r tab displays the g eneral inform ation of the w ireless netw orks available in the air and y ou can select th e netw ork y ou w ant to connect w ith by double- clicking on the netw ork’s nam e. In addition, you can u se the Site Monito r feature to display the comm unicat[...]
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54Mbps W ireles s LAN Card Us er's Manual 28 For each netw ork, the followin g inform ation will be display ed: Field Description Network Nam e Displays th e name of th e wireless netw o r k. Channel T he chann el used by the AP or w ireless station. WEP Displays w hether WEP is ON or OFF . Signal Displa ys the signal stre ngth in dB m. Link Q[...]
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Chapter 3 Using W ireless LAN Utility 29 Figure 3-5 Site Mo nitor T ab[...]
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54Mbps W ireles s LAN Card Us er's Manual 30 A bout Tab The About tab displays inf ormation about the device, in cluding the Utility , Driver and Firmw are d e tails. Figu re 3-6 Abou t T ab[...]
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31 Chapter 4 Using Wireless T ray Icon Functions View ing Signal Strength and Speed Whenever y ou start Windows, y ou should be able to find the w ireless monitor icon loaded in the sy stem tray, located n ear the clock on th e task bar. While conn ected, you can place your cu rsor over the icon to see the pop-u p text that gi ves link inform ation[...]
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54Mbps W ireles s LAN Card Us er's Manual 32 Tray Icon Graphic Indication The graphic of the w ireless icon changes to indicate y our wireless conn ection quality. Possible radio connection quality an d procedures to take are describ e d in the table below: Graphic Radio Connectio n Quality V ery good. Y our Wireless L AN Card has an excellen [...]
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Chapter 4 U sing Wire less Tr ay Icon Func tions 33 Graphic Radio Connectio n Quality No signa l . It may due to you are o ut of r ange of t he wireless net work or c onfigura tion e rro rs (such as the SSID or WEP encryption doesn’t m a tch your target AP/w ireless station). Move y our device closer to y our target A ccess Point/w ireless st ati[...]
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54Mbps W ireles s LAN Card Us er's Manual 34 Other Functions Right-click th e icon displays the m enu as show n below: Each item on the cont ext men u is described as below: Radio ON/ Radio OFF: Enable or disable th e RF sig nal Link Status/Configura t io n/Encryption/Site M onito r/About: Pop up the W ireless LAN Utility. HIDE: Clos e the m e[...]
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35 Chapter 5 Window s XP Wireless Zero Configuration Utility Windows XP provides b uilt-in Wireless Z ero Configuration utility for wi reless configur atio n and monit oring. You c a n choo se to c onfigur e your wirele ss ne twork via e ither the w ireless LAN u tility as described in preceding section, or to use the Windows XP Wireless Z ero Conf[...]
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54Mbps W ireles s LAN Card Us er's Manual 36 Note: Dep endi ng o n whether your wire less networ k i s e stab l i shed, t he cont ext menu may come w ith diff erent item s. 2. When the Connect to Wireless Network w indow pops u p, you w ill see all the A ccess Points or Wireless LAN Cards that are available in the air. Select the w ireless net[...]
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Chapter 5 Windows XP Wireless Ze ro Configuration Utility 37 4. Click Connect , then you w ill join the target netw ork and this dialog w indow will disappear. When y our w ireless con nection is establis hed, the conn ection icon appears as below : Note: If the w ireless connection can’ t be established, do uble-click the connection icon and the[...]
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54Mbps W ireles s LAN Card Us er's Manual 38 Viewing Wireless Connection Status After y ou successfu lly connect to the A ccess Point or Wireless LAN Card, double-click the icon in the sy stem tray again. This w ill open the Wireless Network Connection Sta t us w indow wh ere you can see the gen eral data of the Wireless LAN C ard, such as Sta[...]
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Chapter 5 Windows XP Wireless Ze ro Configuration Utility 39 Configuring Your Wireless Propert ies To configur e your wirele ss pro per t ies, o p en the Wireless Netw ork Connection Sta tus w indow as descri bed above, and th en click the Properties button. This w ill open the Wireless Network Connection Properties w indow w hich allows y ou to co[...]
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54Mbps W ireles s LAN Card Us er's Manual 40 Wireless Networks This tab contains two sections: Available networks and Preferred networks des cribed as below . Under Available netw orks section , you can als o see all the Access Points and Wireless LA N Cards available in the air. Click Refres h to update the list of Access Points and Wireless [...]
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Chapter 5 Windows XP Wireless Ze ro Configuration Utility 41 Under Preferred networks section, y ou can add any w ireless networks that y ou w ish to connect to. To do this, j ust click Add to add more Access Points or W ireless LAN Cards to the list. After y ou click th e Add button, the Wireless Network Properties w indow pops u p. Type your netw[...]
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54Mbps W ireles s LAN Card Us er's Manual 42 After y ou add several profiles into Preferred networks, y ou can chang e the order in w hich connection attem pts to preferred networks are m ade. Just select the target w ireless netw ork and click Move up or Move down to move it to a desired position. To Access Certain Wireless Net work Only If y[...]
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Chapter 5 Windows XP Wireless Ze ro Configuration Utility 43 Once you finish the adv anced setting, your w ireless statio n w ill then connect to y our desired netw ork and the connected netw ork w ill be listed under Available netw orks . Figure 5-6 Windows XP Configuration Utility -Set up a Netw ork to Aceess Authenti cation This tab allows y ou [...]
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54Mbps W ireles s LAN Card Us er's Manual 44 Figure 5-7 Windows XP Connection Properties – Auth entication Make sure to d isable Enable netw ork access control usin g IEEE 802.1X .[...]
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45 Chapter 6 Unin stallin g the Wireless LA N Card Should you n eed to uninstall the Wireless LA N Card and application software f or any reason,, you s hould un install th e associated softw are and then remov e the hardw are from you r compu ter. Please proceed as follow s. Uninstalling the Wireless LA N Card Software Note: Before uninstalling th[...]
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54Mbps W ireles s LAN Card Us er's Manual 46 1. Close all p rogr ams that ar e curr ently running. 2. Click the Windows Start button , point t o Programs , WLAN Utility and then click Uninstall Utility . 3. Click OK to proceed w ith the sof tware rem oval procedure.[...]
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Chapter 6 Uninstalling the W ireles s LAN Card 47 4. Clic k Finish to complete the software uninstallation. Subj ect to your Wireless LAN Card, the Win dows OS m ay reboot to enable th e chang es. Removing t he Wireless LA N Card (For CardBu s A dapter) To permanently remove the CardBus adapter from your com puter, m ake su re that y ou have remov [...]
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54Mbps W ireles s LAN Card Us er's Manual 48 1. On the sy stem tray , right- click the PCMCIA icon, an d then click Adjust PC Card Properties . 2. Select the Wireless LAN Card th at you w ant to rem ove, click Stop . 3. When the m essage appears that tells you it is saf e to remove device, click OK and rem ove the Wireless L AN Card f rom the [...]
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49 Chapter 7 T roubleshooting To v erify the Wireless LAN Card is functioni ng properly. After in stallation you can v erify wheth er you w ireless ad ap ter is properly installed and functio ning by take o ut these st eps: 1. La unch the Device M a nager as below : • For Win dow s 98/Me: Un der Control Panel , click System > Device Manager . [...]
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54Mbps W ireles s LAN Card Us er's Manual 50 Cannot Install under Windows 2000 When I in stalling th e softw are under Window s 2000, I received th e error mess age: “1608: Unable to create Inst allDriver instan ce” and the program stopped installing. This error occurs w hen the Microsoft Network Client is n ot inst alled un der Window s 2[...]
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Chapter 7 Troubleshooting 51 • Plug the com puter equipped with the Wireless L AN Card into an outlet on a differen t branch circuit f rom th at used by the aff ecting device. • Consu lt the dealer or an experien ced radio technician f or help. • Keep the com puter w ith the Wireless L AN Card aw ay from the m icrow ave oven and large m etal [...]
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54Mbps W ireles s LAN Card Us er's Manual 52 • If in A d-Hoc m ode, mak e sure the L og on to Wind ows NT dom ain check box is not selected in the Client for Microsoft Networks Properties dialog box in the Networ k Config uration tab. • Incorrect IP Address or Subnet Mask. C heck thes e settings in the TCP/IP Properties dialog box in th e [...]
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Chapter 7 Troubleshooting 53 • Make sure the SSID f or the Wireless LAN Card is the sam e as the Access Point. • Make sure th e security settings are th e same as that of Acces s Point. • Make sure y our Wireless LAN Card operation mode is set to Infrastructu re. • Make su re you are n ot tryin g to connect to an 802.11a Access Point. 802.1[...]
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55 A ppendix A Limited W arranty Wireless LA N Hardware The seller warrants to th e end user (“Cu stomer”) that this h ardware product w ill be free from defects in work mans hip and m aterials, u nder norm al use and se rvice, for 1 y ear from the date of purchase from the seller or its authorized reseller. The seller’s sole obligation under[...]
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54Mbps W ireles s LAN Card Us er's Manual 56 Wireless LA N Soft w are The seller w arrants to Cu stom er that each sof tw are program licen sed from it , except as n oted below, w ill perform in su bstantial conforman ce to its program specifications, for a period of 1 year f rom the date of purchase f rom the seller or its auth orized reselle[...]
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57 A ppendix B Regulatory Complianc e FCC Part 15 Declaration of Conformity (DoC) The follow ing equipm ent: Product Name: Wireless LAN Card is herew ith confirm ed to comply w ith the requirements of FCC Part 15 rules. The operation is subject to the following tw o conditions: 1. This dev ice may not caus e harmf ul interf erence, and 2. This dev [...]
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54Mbps W ireles s LAN Card Us er's Manual 58 FCC Rules and Regulations - Part 15 Warni ng: This devic e has bee n tested and f ound to com ply w ith the lim its for a Class B dig ital dev ice pursuant to Part 15 of the Federa l Comm unications Comm issions Rules and Re gulation. T hese lim its are desig ned to provide r easonable protection a [...]
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Appendix B Regulator y Compliance 59 FCC Radiation Exposure Statement This equipment com plies with FCC radiation exposure lim its set forth for an u ncontrolled environ m ent. This equ ipm ent sh ould be ins talled and operat ed wi th m inim um dist ance of 20cm bet ween the radiator & you r body.[...]
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61 A ppendix C Setting Up TCP/IP This section contains instructions for configurin g the TCP/IP pr otocol of the Wireless LAN Card . The I P ad dre ss pol i c y depend s on your wirel e ss network. Y o u should configur e your TCP/IP protocol as i nstru cted by y our netw ork adm ini strator. For Window s 98/ME 1. Double-click the Network icon on t[...]
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54Mbps W ireles s LAN Card Us er's Manual 62 3. In the n etw ork com ponent s list , select th e TCP/IP protocol of you r Wireless LAN Card, e.g., TCP/IP -> Broadcom 802.11g Network Adapter an d then click Properties . 4. On the IP Address tab, choose one of the m ethods as required: Option A: Click Specify an IP address . In the IP Address[...]
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Appendix C Setting Up TCP/IP 63 5. Click OK to return to Network dialog box and click OK again t o finish c o nfigura tion. If your TCP/IP properties have been modified, y ou w ill be prompted to restart your compu ter. Click Yes to have ne w settings take e ffect.[...]
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54Mbps W ireles s LAN Card Us er's Manual 64 For Windows 2000/XP 1. Double-click Network Dial-up Connect io ns (Window s 2000) or Netwo rk Connections (Window s XP) on Control Panel, then Netw o r k Connections . 2. Ri ght-clic k the Broadcom 802.11g Network A dapter icon and click Properties .[...]
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Appendix C Setting Up TCP/IP 65 3. On the General tab, highl ight Internet Protocol (TC P/IP) and then click Properties . Optio n A: Use fixed IP a ddress. Enable the Use the following IP Address option. Enter the IP address , Subnet Mask and Default gateway . Then click OK . Option B: Use dy namic IP address Select Obtain an IP ad dress autom atic[...]
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67 A ppendix D Specific ations Host Interfaces Mini PCI / CardBu s / PCI Spec. V2.2 Form factor Type III B / 32bi t CardBu s / Low profile PC I Chipset Broadcom BC M 4306 & BCM 2050 Operation Voltage 3.3VDC Netw ork Standards IEEE 802.11b (Wi-Fi ™) standard an d IEEE 802.11g draft standard (54G) Modul ation T echniques DBPSK,DQPSK,CCK,1 6QAM,[...]
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54Mbps W ireles s LAN Card Us er's Manual 68 Operati ng Channels 802.11b: 11 for North Am erica, 14 f or Japan, 13 for Eu rope (ETSI) 802.11g: 13 f or North A merica, 13 f or Europe (ETSI), 13 for Japan RF Output Pow er 15 dBm m aximu m ou tput pow er (14 dBm nom inal ± 1 dBm over operatin g temperature Receiver sensitivity (PER <10%) -80d[...]
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Appendix D Spec ifications 69 Client Utility Autom atic location profile, site monitor, current lin k status, and diagn ostics Soft w ar e Support Microsof t WHQL certi fied f or Window s XP, 2000, and ME. L i nux and VxW o rks embedded dri vers. LED Indicators WLAN A ctivity Monitor, WLA N Radio Status Indicators Switch Manual radio on/of f disabl[...]
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71 Glossary 802.11 802.11 refers to a fam ily of speci fication s developed by the IEEE f or w ireless L AN technology . 802.11 specifies an over-t he-air interf ace betw een a w ireless client and a base station or be tween tw o wireless clients. Access Point An intern etwork ing device th at seamles sly connects w ired and wireless netw orks. Acc[...]
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54Mbps W ireles s LAN Card Us er's Manual 72 BSS Basic Service Set. In a n etwork wh ere an AP is con nected to w ired netw ork and is associates with a set of wireless stations, it is ref erred to as a BSS. ESS Extended Service Set. An Extended Service Set (ESS) is a set of tw o or more BSSs that form a single network. I t’s basi cally a ro[...]
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Glossary 73 IP Intern et Protocol. The stan dard protocol w ith in TCP/IP th at defin es the bas ic uni t of inform ation passed across an Internet connection by breakin g down data m essages into packets, routin g and trans porting the pack ets over netw ork connections, th en reassembling the packets at their destination. IP corresponds to the ne[...]
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54Mbps W ireles s LAN Card Us er's Manual 74 electromagnetic field is created that then is able to p ropagate thro ugh space. Roam ing In an Inf rastructure m ode wireless netw o r k, roaming refers to the ability to move f rom one AP coverage area to another w ithout in terruption in service or loss in connectivity . SSID Service Set Iden tif[...]
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Glossary 75 WEP W ired Equiv alent Privacy , a security protocol for w ireless local area netw orks defined in the 802.11b st andard. WEP is des igned t o provide the s ame l evel of security as that of a w ired LAN. L ANs are m ore secure th an WLANs because LA Ns are som ew hat phy sically protected by thei r structu re, havin g som e or all part[...]
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54Mbps W ireles s LAN Card Us er's Manual 76 WEP Wired Equi valent Pri vac y. The optional cryptographic confiden tiality algorithm specified by 802.11. The algorithm is being u sed to provide data conf identiality th at is subjectively equivalent to the conf identiality of a w ired LAN medium that does not employ cryptographic techniqu es to [...]