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Chapter 3

Advanced Site Monitor

Clicking the

Advanced

button on the

Site Monitor

tab brings out the

Advanced Site

Monitor

screen. The screen displays the following information in addition to those appear on

the

Site Monitor

tab:

Field

Description

AP MAC

The MAC address for the wireless network interface of the Access
Point.

Signal

Signal level indicates the strength of the wireless signal as received
at the Wireless LAN Card. Both dBm value and graphic indicator
are displayed.

Noise (dBm)

Noise Level reflects the level of radio interference as measured at
the Wireless LAN Card. Both dBm value and graphic indicator are
displayed.

SNR (dBm)

The Signal-to-Noise Ratio (SNR) is the primary diagnostic counter
to diagnose wireless performance. SNR indicates the relative
strength of the received Signal Level compared to the Local Nois e
Level.

In most environments, SNR is a good indicator for the quality of the
radio link between transmitter and receiver. A higher SNR value

Содержание WLL3120

Страница 1: ...54Mbps 802 11g Wireless LAN Card User s Manual ...

Страница 2: ...without the express written permission of the seller The seller provides this documentation without warranty term or condition of any kind The seller may make improvements or changes in the product s and or the program s described in this documentation at any time Other product and company names herein may be trademarks of their respective owners 2002 All rights reserved Rev 01 January 2003 ...

Страница 3: ...ireless LAN Card 7 System Requirements 7 Installing Wireless LAN Driver and Software 8 Chapter 3 Using Broadcom Wireless Configuration Utility 11 Accessing Broadcom Wireless Configuration Utility 12 Notice When Assessing Broadcom Utility under Windows XP 12 Wireless Networks Tab 15 Connecting to an Existing Wireless Network 15 Configuring a New Wireless Network Connection 17 ...

Страница 4: ...P Wireless Zero Configuration Utility 37 Connecting to an Access Point or Wireless LAN Card 37 Viewing Wireless Connection Status 39 Configuring Your Wireless Properties 40 Chapter 7 Troubleshooting 47 Radio Interference 47 Card Not Detected 48 Cannot Connect to Another Wireless LAN Card 48 Poor Link Quality 49 Cannot Connect to Access Point 49 Appendix A Limited Warranty 51 Wireless LAN Hardware ...

Страница 5: ...5 Declaration of Conformity DoC 53 FCC Rules and Regulations Part 15 54 FCC Radiation Exposure Statement 55 Appendix C Setting Up TCP IP 58 For Windows 98 ME 58 For Windows 2000 XP 59 Appendix D Specifications 63 Glossary 65 ...

Страница 6: ... Configuration Utility Connect to Wireless Network 38 Figure 3 14 Windows XP Connection Status 40 Figure 3 15 Windows XP Connection Properties General 41 Figure 3 16 Windows XP Connection Properties Wireless Networks 42 Figure 3 17 Windows XP Add Preferred Networks 43 Figure 3 18 Windows XP Configuration Utility Set up Network to Aceess 45 Figure 3 19 Windows XP Connection Properties Authenticatio...

Страница 7: ...Card is used to indicate both types Also the following terms abbreviations are used interchangeably Access Point AP Peer to Peer Ad Hoc Wireless LAN WLAN Ethernet network LAN network This User s Manual contains information on how to install and configure your Wireless LAN Card From now on we will guide you through the correct configuration steps to get your device up and run ...

Страница 8: ...54Mbps 802 11g Wireless LAN Card VI ...

Страница 9: ...sting Wi Fi devices It allows your computer to connect to a wire less network and to share resources such as files or printers without being bound to the network wires Operating in 2 4GHz Direct Sequence Spread Spectrum DSSS radio transmission the Wireless LAN Card transfers data at speeds up to 54Mbps Both Ad Hoc and Infrastructure mode are supported For network security concern 64 128 bit Wired ...

Страница 10: ...s and peripheral devices such as printers The Wireless LANCard allows you to interact with other computers without having to run cables normally associated with networks This lets you move your computer around while staying connected to your network There are two ways to use the Wireless LAN Card One way is to connect directly to one or more Wireless LAN Card equipped computers forming an Ad Hoc w...

Страница 11: ...owing communication between computers within range that have an 802 11g DSSS compatible PC card installed A wireless Ad Hoc network can also access a wired LAN s TCP IP service such as e mail and the Internet by using a TCP IP software router on an Ethernet equipped PowerBook or notebook Figure 1 1 Ad Hoc Mode ...

Страница 12: ... or several APs as a gateway linking the wireless network to a wired LAN As a result portable workstations or desktops on your wireless network have access to all of the features of your wired LAN including e mail Internet access network printers and files server Figure 1 2 Infrastructure Mode ...

Страница 13: ...area for seamless wireless access Within an extended service area all Access Points and wireless clients must have the same Service Set Identity SSID Roaming among different Access Points is controlled automatically to maintain the wireless connectivity at all times Figure 1 3 Roaming Across Multiple Access Points ...

Страница 14: ......

Страница 15: ...puter while the utility software Broadcom Wireless Configuration Utility is to help you configure and monitor your Wireless LAN Card System Requirements To use the Wireless LAN Card your computer must meet the following minimum requirements l Pentium class PC 300MHz or better recommended l 64 MB of RAM additional memory recommended l Hard disk space at least 30 Mbytes l Windows 98 SE Me 2000 XP l ...

Страница 16: ...ion will detect the wireless adapter and issue a dialog box requesting for its driver Click Cancel to quit the wizard and unplug the Wireless LAN Card 1 Close all Windows programs that are running Insert the provided Software Utility CD into your CD ROM drive Run setup exe from the Driver folder of the Software Utility CD 2 If the wireless adapter is not yet inserted into your computer click Yes O...

Страница 17: ...ard 9 3 When the welcome screen pops up click Next 4 Upon hardware detection Windows OS hardware wizard will appear requesting for the driver Just follow the on screen instructions to proceed 5 Click Finish when the following screen appears ...

Страница 18: ...less Configuration Utility should be launched automatically with its icon appearing on the right side of the taskbar Proceed to next chapter to configure or fine tune your Wireless LAN Card settings Note If you need to set up the TCP IP address or the subnet mask refer to Appendix C Setting Up TCP IP for details ...

Страница 19: ...s to monitor available networks The Diagnostic tab allows to perform diagnostics The utility information is displayed on the Information tab The Statistics tab displays the statistics and status information pertaining to your Wireless LAN Card See the ensuing subsections for instructions to launch the utility and description of each tab Note If you are using Windows XP you can also use the Windows...

Страница 20: ...dcom Wireless Utility icon The Broadcom Wireless Configuration Utility screen pops up with six available tabs Wireless Network Link Status Statistics Site Monitor Diagnostics and Information Please see the appropriate section which describes each tab item Notice When Assessing Broadcom Utility under Windows XP Aside from using Broadcom Wireless Configuration Utility for wireless network configurat...

Страница 21: ...le the Windows XP included wireless utility by these steps 1 Double click the Broadcom wireless icon on system tray and click the Wireless Networks tab Or double click the Windows wireless icon and then click Advanced or Properties Wireless Networks 2 On the Wireless Networks tab uncheck the Use Windows to configure my wireless network settings box and click OK This will restore the Wireless Netwo...

Страница 22: ...Utility To revert back to using Windows XP included wireless utility double click the Windows wireless icon not the Boradcom icon and then click Advanced or Properties Click the Wireless Networks tab and check the Use Windows to configure my wireless network settings box and click OK ...

Страница 23: ...ropriate subsection according to your need Connecting to an Existing Wireless Network To connect to an existing Access Point Wireless LAN Card take the following steps 1 Double click the Broadcom Wireless Utility icon on the system tray 2 When the Connect to Wireless Network window pops up you will see all the wireless networks available in the air Under Available networks select the wireless netw...

Страница 24: ...ust enter the same WEP key in the Network key field Otherwise this field is dimmed and you do not need to set up the WEP key 4 Click Connect then you will join the target network and this dialog window will disappear When your wireless connection is established the connection icon may appear as below ...

Страница 25: ... not broadcast its network name will not appear under Available networks To connect to an existing network but not appear under Available networks take the following steps 1 In Connect to Wireless Network window click Advancedto launch the Broadcom Wireless Configuration Utility window Then click Add under Preferrednetworks section ...

Страница 26: ...rk adapter given to you by your network administrator check The key is provided for me automatically check box If the WEP key is not automatically provided for you leave The key is provided for me automaticallycheck box blank and then enter the key in the Network key field When entering the key the Key format and Key length are changed automatically according to the format and length of the charac...

Страница 27: ...ur network administrator if you are unsure about the WEP setting Ad Hoc Infrastructure Network If the network you are configuring is an Ad Hoc network check This is a computer to computer ad hoc network check box Otherwise leave it unchecked for Infrastructure network connection 3 After entering required fields click OK to exit this window ...

Страница 28: ...ot be moved to a higher position than an Infrastructure network If you want to connect to Ad Hoc network only see Specifying a Network Type to Access for instructions Configuring an Existing Wireless Network Connection On the Wireless Networks tab if your target network appears under the Available networks or Preferred networks list but you cannot connect to it you may want to review or reconfigur...

Страница 29: ...mpted However it is possible that you want connect to certain networks only In this situation you can specify the network to access by clicking the Advanced button on the Wireless Networks tab Then select your preferred access type and click OK For example you want to connect to an Ad Hoc network but both Ad Hoc and Infrastructure networks are available In this case you can select the Computer to ...

Страница 30: ... Link Status Tab The Link Status tab contains general information about the connection and activity of your current link The following table describes the items found on the Link Status screen Screen Item Description Status Displays whether the card is associated with a network Network Name SSID Displays the name of the wireless network your station is currently connected to AP s MAC Address The M...

Страница 31: ...ss adapter Network Connection Type Displays if the adapter is connected to an Access Point or Ad Hoc network Radio State Displays whether the RF Signal is enabled or disabled Signal Displays the signal strength dBm On the right side signal strength is indicated by graphic Noise Displays the noise level dBm Noise Level reflects the level of radio interference as measured at the Wireless LAN Card ...

Страница 32: ...54Mbps 802 11g Wireless LAN Card 24 ...

Страница 33: ...plays the current and accumulated statistics information pertaining to your Wireless LAN Card The following transmit and receive statistics are provided l Packets Sent l Packets received l Packets lost l Total packets sent l Total packets received ...

Страница 34: ...s connectivity to mobile stations l Roam throughout the wireless network environment with your station you will be able to identify areas that may not have adequate coverage or that suffer from interference by other wireless equipment such as microwave ovens The Visible Networks list will update automatically to display all visible networks Optionally you can click Freeze to temporarily stop the u...

Страница 35: ... Signal Strength Displays the signal strength dBm WEP Displays WEP whether is disabled enabled For a selected network the following information will be displayed Field Description Standard The IEEE 802 11 wireless standard Supported Rates The supported rates of the wireless network ...

Страница 36: ...54Mbps 802 11g Wireless LAN Card 28 ...

Страница 37: ...s signal as received at the Wireless LAN Card Both dBm value and graphic indicator are displayed Noise dBm Noise Level reflects the level of radio interference as measured at the Wireless LAN Card Both dBm value and graphic indicator are displayed SNR dBm The Signal to Noise Ratio SNR is the primary diagnostic counter to diagnose wireless performance SNR indicates the relative strength of the rece...

Страница 38: ...nt You can sort the list of Access Points by clicking the filed you want to use as a criteria You can also create log files based on the monitor measurements on the Advanced Site Monitor screen To create a log file click the Start Log button and specify the path and filename for the log file Then the system will automatically append log entry to the file at regular intervals until you click the St...

Страница 39: ...Chapter 3 31 ...

Страница 40: ...ontrol Registers This test verifies the read and write capabilities of the network controller registers by writing various values to the registers and verifying the result The device driver uses these registers to performnetwork functions such as sending and receive information If the test fails the network adapter may not work properly SPROM Format Validation This test verifies the content of the...

Страница 41: ...writes patterned values to the memory and reading back the results The test fails if an erroneous value is read back The network controller will not function without its internal memory Loopback Test This test verifies that the NDIS driver is able to receive interrupts from the network controller LED Test This test verifies that your 802 11 wireless networking hardware is functioning correctly Thi...

Страница 42: ...54Mbps 802 11g Wireless LAN Card 34 ...

Страница 43: ...Chapter 3 35 Information Tab The Information tab displays the basic information about the device including the hardware and software details ...

Страница 44: ......

Страница 45: ... Windows XP Wireless Zero Configuration utility This section only provides the essential instructions on using Windows XP wireless utility to get your wireless network established For more information please refer to Windows XP on line help Connecting to an Access Point or Wireless LAN Card To connect to an existing Access Point Wireless LAN Card take out the following steps 1 Right click the Wire...

Страница 46: ...ork window pops up you will see all the Access Points or Wireless LAN Cards that are available in the air Select the wireless network you want to connect to Figure 3 4 Windows XP Configuration Utility Connect to Wireless Network 3 If the target Access Point Wireless LAN Card has been set with WEP key you must enter the same WEP key in the Network key field Otherwise leave it blank ...

Страница 47: ...and then click Properties Go to Authentication tab first to make sure that you use the correct authentication type for the Wireless LAN Card For more information refer to Authentication on page 45 Viewing Wireless Connection Status After you successfully connect to the Access Point or Wireless LAN Card double click the icon in the system tray again This will open the Wireless Network Connection St...

Страница 48: ...n the Wireless Network Connection Status window as described above and then click the Properties button This will open the Wireless Network Connection Properties window which allows you to configure more detailed items of the Wireless LAN Card The following describes each tab of the properties window to help you do more settings of the Wireless LAN Card ...

Страница 49: ...ed with your Wireless LAN Card The network policy depends on your wireless network For TCP IP protocol you should configure its properties as instructed by your network administrator For more information on TCP IP setting please refer to Appendix C Setting Up TCP IP on page 58 Figure 3 6 Windows XP Connection Properties General ...

Страница 50: ...rks and Preferred networks described as below Under Available networks section you can also see all the Access Points and Wireless LAN Cards available in the air Clicking Refresh will update the list of Access Points and Wireless LAN Cards Figure 3 7 Windows XP Connection Properties Wireless Networks ...

Страница 51: ...s or Wireless LAN Cards to the list After you click the Add button the Wireless Network Properties window pops up Type your network name SSID and if needed the wireless network WEP settings Once the Access Point or Wireless LAN Card that you want to connect to has been set with WEP key you must type the same WEP key as the Access Point s or Wireless LAN Card s Figure 3 8 Windows XP Add Preferred N...

Страница 52: ...s tab Figure 3 12 to open the Advanced window You can choose to connect to the following networks Any available network access point preferred Access point infrastructure Computer to computer Peer to Peer Group The default network type is Any available network access point preferred In this network type your device will connect to any Access Points or Wireless LAN Cards available in the air but Ac...

Страница 53: ... most important setting for the Wireless LAN Card is to disable Enable network access control using IEEE802 1X to ensure successful connection between the Wireless LAN Cards and Access Points or other Wireless LAN Cards You must disable this function for any reason Otherwise there may be some problems happening during connection For other settings we recommend you keep the default settings to mini...

Страница 54: ...bps 802 11g Wireless LAN Card 46 Figure 3 10 Windows XP Connection Properties Authentication Make sure to clear the Enable network access control using IEEE802 1X check box to ensure successful connection ...

Страница 55: ...tween the wireless computers and the device causing the radio interference Plug the computer equipped with the Wireless LANCard into an outlet on a different branch circuit from that used by the affecting device Consult the dealer or an experienced radio technician for help Keep the computer with the Wireless LAN Card away from the microwave oven and large metal objects ...

Страница 56: ... If you cannot make a connection to another Wireless LAN Card from your computer it could be due to one of the following reasons Incorrect SSID Make sure the SSID is the same for all computers that have a Wireless LAN Card Changes are not being recognized by your computer Restart your computer If in Ad Hoc mode make sure the Log on to Windows NT domain check box is not selected in the Client for M...

Страница 57: ...reless LAN Card and Access Point or another card Cannot Connect to Access Point If you cannot make a connection to the Access Point it could be due to one of the following reasons Make sure the Wireless LAN Card and Access Point have no physical connection problems Make sure the SSID for the Wireless LAN Card is the same as the Access Point Make sure the privacy type is the same as that of Access ...

Страница 58: ...54Mbps 802 11g Wireless LAN Card 50 ...

Страница 59: ...sole obligation under this express warranty shall be at the seller s option and expense to repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or if neither of the two foregoing options is reasonably available The seller may in its sole discretion refund to the Customer the purchase price paid for the defective product All products t...

Страница 60: ...pplicable seller published specifications Customer assumes responsibility for the selection of the appropriate application programs and associated reference materials The seller makes no warranty or representation that its software products will meet Customer s requirements or work in combination with any hardware or software applications products provided by third parties that the operation of th...

Страница 61: ...e Wireless LAN Card is herewith confirmed to comply with the requirements of FCC Part 15 rules The 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 ...

Страница 62: ...the instruction manual 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 and correct the interference by one or more of the follow...

Страница 63: ...to operate this equipment Askey declares that WLL3120 FCC ID H8NWLL3120 is limited in CH1 CH11 for 2 4 GHz by specified firmware controlled in U S A This device is intended only for OEM integrators under the following conditions 1 The antenna must be installed such that 20 cm is maintained between the antenna and users and 2 The transmitter module may not be co located with any other transmitter o...

Страница 64: ...ill be bundling into Broadband product s uch as Wireless ADSL Wireless Router or AP Wireless Cable Modem Notebook with antenna mounted around LCD panel The final end product must be labeled in a visible area with the following Contains TX FCC ID H8NWLL3120 Manual Information That Must be Included The OEM integrator has to be aware not to provide information to the end user regarding how to install...

Страница 65: ...rference and 2 this device must accept any interference including interference that may cause undesired operation of the device This device has been designed to operate with an antenna having a maximum gain of 3 dBi Antenna having a higher gain is strictly prohibited per regulations of Industry Canada The required antenna impedance is 50 ohms ...

Страница 66: ...n your wireless network Yo u should configure your TCP IP protocol as instructed by your network administrator For Windows 98 ME 1 Double click the Network icon on the Control Panel 2 Click the Configuration tab of the Network dialog box 3 In the network components list select the TCP IP protocol of your Wireless LAN Card e g TCP IP Broadcom 802 11g Network Adapter and then click Properties ...

Страница 67: ...n an IP address automatically Then an IP address will be automatically assigned to your computer 5 Click OK to return to Network dialog box and click OK again to finish configuration If your TCP IP properties have been modified you will be prompted to restart your computer Click Yes to have new settings take effect For Windows 2000 XP 1 Double click Network Dial up Connections Windows 2000 or Netw...

Страница 68: ...54Mbps 802 11g Wireless LAN Card 60 ...

Страница 69: ...Use fixed IP address Enable the Use the following IP Address option Enter the IP address Subnet Mask and Default gateway Then click OK Option B Use dynamic IP address Select Obtain an IP address automatically 4 Close the Local Area Connection Properties window For Windows 2000 if prompted click Yes to restart your computer ...

Страница 70: ...54Mbps 802 11g Wireless LAN Card 62 ...

Страница 71: ...SSS Data Rate 802 11b 11 5 5 2 1 Mbps 802 11g 125 108 54 48 36 24 18 12 9 6 Mbps Network Architectures Infrastructure and Ad Hoc Operating Frequencies 2412 2462MHz Operating Channels 802 11b 11 for North America 14 for Japan 13 for Europe ETSI 802 11g 11 for North America 13 for Europe ETSI 13 for Japan RF Output Power 18 06 dBm maximum output power Receiver sensitivity PER 10 80dBm 6Mbps Antenna ...

Страница 72: ...tipath R M S Delay Spread 1 FER 11 Mbps 250 nsec 5 5 Mbps 300 nsec Client Utility Automatic location profile site monitor current link status and diagnostics Software Support Microsoft WHQL certified for Windows XP 2000 and ME Linux and VxWorks embedded drivers LED Indicators WLAN Activity Monitor WLAN Radio Status Indicators Switch Manual radio on off disables transmit and receive to comply with ...

Страница 73: ...A network composed solely of stations within mutual communication range of each other no Access Point connected BSS Basic Service Set A set of stations controlled by a single coordination function Channel A medium used to pass protocol data units that can be used simultaneously in the same volume of space by other channels of the same physical layer with an acceptably low frame error ratio due to ...

Страница 74: ... for CSMA CD based Ethernet networks or 802 5 the specification for token ring networks 802 11 defines the standard for wireless LANs encompassing three incompatible non interoperable technologies Frequency Hopping Spread Spectrum FHSS Direct Sequence Spread Spectrum DSSS and Infrared IEEE standards ensure interoperability between systems of the same type Infrastructure A wireless network centered...

Страница 75: ...arger ones also offer private line hookups T1 fractional T1 etc LAN Local Area Network A communications network that serves users within a defined geographical area The benefits include the sharing of Internet access files and equipment such as printers and storage devices Special network cabling 10BaseT is often used to connect the PCs together NAT Network Address Translation The translation of a...

Страница 76: ...ur LAN or communicates outside of your LAN where it is routed out to the rest of the Internet A Subnet Mask that has the s ame first three components for example 255 255 255 0 is the routing pattern for a Class C address TCP Transmission Control Protocol The standard transport level protocol that provides the full duplex stream service on which many applications protocols depend TCP allows a proce...

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