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LAN Access Point

User’s Guide

LW1100AP Series

Содержание LW1100AP Series

Страница 1: ...Page 1 of 50 Wireless LAN Access Point User s Guide LW1100AP Series ...

Страница 2: ...ection 16 Connect The Power Pack 17 Connect Serial Cable 18 Open Terminal Program 19 Configuration Change 21 2 3 Verifying the Operation of the LG Access Point 28 Chapter 3 Access Point Management 30 3 1 Starting a Configuration Tool 31 Access Point Connection 32 Access Point Configuration Window 33 Terminal Window for Diagnosis 37 Firmware Upgrade Window 38 Firmware Upgrade Via Internet 39 Firmwa...

Страница 3: ...Page 3 of 50 Appendix Appendix A Cell Planning Radio Range 46 Appendix B Technical Specification 48 Appendix C Channel Allocation 50 ...

Страница 4: ...scribed in this manual generates and may radiate radio frequency energy If it is not installed in accordance with LG s installation instructions it may cause interference with radio and televisionreception This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part15 of the FCC rules These specifications are designed...

Страница 5: ...NAMED SUPPLIERS DISCLAIM ALL WARRANTIES EXPRESSED OR IMPLIED INCLUDING WITHOUT LIMITATION THOSE OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSEOFDEALING USAGE ORTRADEPRACTICE IN NO EVENT SHALL LG OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS OR LOSS OR DAMAGE TO DATA...

Страница 6: ...radio carriers because they simply perform the function of delivering energy to a remote receiver The data being transmitted is superimposed on the radio carrier so that it can be accurately extracted at the receiving end This is generally referred to as modulation of the carrier by the information being transmitted Once data is superimposed modulated onto the radio carrier the radio signal occupi...

Страница 7: ...iginal 802 11 standard are too slow to support most generalbusiness requirements and have slowed adoption of WLANs Recognizing the critical need to support higher data transmission rates the IEEE recently ratified the 802 11b standard also known as 802 11 High Rate for transmissions of up to 11 Mbps With 802 11b WLANs will be able to achieve wireless performance and throughput comparable to wired ...

Страница 8: ...t or any connection to a wired network This mode is useful for quickly and easily setting up a wireless network anywhere that a wireless infrastructure does not exist or is not required for services such as a hotel room convention center or airport or where access to the wired network is barred such as for consultants at a client site Figure 1 Ad Hoc Mode l Infrastructure Mode In infrastructure mo...

Страница 9: ...crocell or area of coverage Individual microcells overlap to allow continuous communication within wired network They handle low power signals and hand off users as they roam through a given geographic area The 802 11 MAC layer is responsible for how a client associates with an access point When an 802 11 client enters the range of one ormore APs it chooses an access point to associate with also c...

Страница 10: ...etwork traffic on the original access point In the latter case this function is known as load balancing since its primary function is to distribute the total WLAN load most efficiently across the available wireless infrastructure This process of dynamically associating and reassociating with APs allows network managers to set up WLANs with very broad coverage by creating a series of overlapping 80...

Страница 11: ...ay be consist of only two stations Using access point AP and network distribution systems DS WLAN service set can be extended arbitrary size extended service set ESS Each service set has its network ID SSID All the service sets within an ESS network can have same service ID so that the ESS can support inter cell ROAMING ...

Страница 12: ...Page 12of 50 Figure 4 SSID and Roaming Backbone Network AP 2 SS ID LG ROAMING AP 1 SS ID LG AP 3 SSID LWAP ESS BSS Backbone Network Re Configuration Required ...

Страница 13: ...re Before setting up your Access Point ask your network system administrator for the following information If your network does not use a DHCP server you need an IP Internet Protocol address for the Access Point If your network uses a DHCP server an IP address will be assigned automatically Each station or device on your network must have a unique IP address If there is some Access Points are alre...

Страница 14: ...100AP Series Installation CD If any of these items are missing from the package contact your Access Point supplier You will also need A computer that is connected to the same network as the Access Point A 9 pin straight through male to female serial cable ...

Страница 15: ...unted If you keep your Access Point on a table or a desk turn the antennas so they point straight up If you mount your Access Point on a wall or a pole turn the antennas so they are vertical even though the Access Point is on its side If you mount your Access Point on the ceiling turn the antennas so they point straight down Antenna configurations can be varied depending on the Access Point model ...

Страница 16: ...Page 16of 50 Connect the Ethernet cable from your wired LAN to your Access Point Make sure the unit is not powered up when you connect your network cable STEP 2 Ethernet Cable Connection ...

Страница 17: ...normal operation the indicators will be bright green If the indicators does not display a solid color or blink see the Top Panel Indicator Descriptions in this manual Caution If you have already installed LG LW1100 series client card you can easily configure Access Point through air connection between your computer and Access Point You may skip next step and go to Access Point Management section S...

Страница 18: ...ook on the server to find the IP address assigned to the Access Point If you cannot access the DHCP server use a 9 pin straight through male to female serial cable to connect the COM 1 or 2 port on your computer to the RS 232 on the back of the access point After you find the assigned IP address you can remove this cable You might need the cable again if you need to update the Access Point s confi...

Страница 19: ...e HyperTerminal for example but you can use any terminal emulation program to communicate with the Access Point This window appears Type a name for the connection and click OK The Connect To window appears Choose the port on your computer to which the serial cable is connected Click OK The port settings window appears ...

Страница 20: ... in the HyperTerminal window If the text does not appear immediately press Ente r If the Access Point has no problem you can find prompton the terminal program s display box Type disconfig and pressEnter to see current default settings of Access Point Make a note of the SSID Channel number and IP address LG Access Point has a default IP 100 100 100 100 ...

Страница 21: ...d pressEnter to change current default configuration settings Using this command you can change Access Point sSSID Channel number IP address MAC address and WEP key enable disable After type setconfig command whenever you press Enter key thereoccur changeable Access Point options and you can select or edit what you wanted Refer the next example STEP 5 Configuration Change ...

Страница 22: ...ints that have already installed in the neighborhood of your Access Point take a cautious attitude in selecting channel number Otherwise by selecting too close channel number with your neighbor Access Point raise channel interference problems This problem can degrade wireless LAN air link quality seriously In order to avoid this problem select a longest channel number with your neighbor Access Poi...

Страница 23: ... IP address should be set to your Access Point then write it in this step Otherwise if you do not know what IP can be used ask for your network administrator about available IP address In this example the IP address 211 189 201 251 is a default IP address that is assigned by LG Systems Caution If you have a DHCP server this step can skip If you have a DHCP server your Access Point s IP address is ...

Страница 24: ...one of four WEP default key number You can choose any one number from 1 to 4 And then there occur Exclude Unencrypted question This question asks you whether you allow a client that does not use WEP function Next question is WEP Key Generation Mode There are two ways to generate the WEP key One is by entering any text in the Passphrase The other way is by entering Key value directly from the keybo...

Страница 25: ... deep information about wireless LAN air interface specifications do not change default options More detail information about how to change detail configuration will be explained in Access Point Management section Until now you have completed all the setup options Press Enter key On the terminal screen options lists that you have selected will be displayed After confirm all the changed options if ...

Страница 26: ...p configuration will be complete and the setup program will update changed configuration in the memory Caution During updating configuration data there can be display flash memory write error message In this case call for help LG Access Point distributor ...

Страница 27: ...Page 27of 50 ...

Страница 28: ...operly runs in the AP And then the firmware downloads RF module operating program c Upon successful completion of the diagnostics and program download After Radio Link LED turns on and then turns off for a few seconds all the LED display steady bright The diagnostics take approximately 30 seconds to complete after power up Upon successful completion of the diagnostics the LED pattern shown in belo...

Страница 29: ... Operational State PWR On Green power is okay Orange AP Functional Fail Occur WLAN ON Green Air link status okay Blink Air link or RF module has some problems 10 100M Blink Ethernet interface okay and the AP transfers data ...

Страница 30: ...stall the Access Point Manager on the same computer folder The setup process automatically upgrades the existing software and keeps your existing configuration files The LG Access Point Manager is included in the LG Access Point kit The AP Manager can be used as a setup configuration tool for new A ccess Points and as a management tool to assist the ongoing management and support of LG wireless LA...

Страница 31: ...The former was explained in the above chapter The following sections describe how to configure the Access Point using Access Point Manager tool If you have installed the LG Access Point Manager on a computer select Program Files Ú LG Electronics Ú A P ManagerÚ AccessPointManager exe Or you can simply click the AccessPointManager icon on the windows screen The program starts with the following scre...

Страница 32: ...ss Point has no problem and wire wireless link connected without problem A dialog box pop up that the Access Point Manager program connected to the Access Point addressed by IP Otherwise If the Access Point Manager program cannot find the Access Point then following message is displayed and stop search process If the Access Point connection fails verify that you have correctly installed the AP If ...

Страница 33: ...LG s Access Point has multiple functions Wireless LAN Access Point Wireless LAN Bridge for point to point transmission So this dialog box displays current function mode Default type value is Access Point mode IP Adfffdress This field allows the assignment or change of the Internet Protocol IP address of a station The significance of such a change depends on whether or not Access Point Configuratio...

Страница 34: ...ase or keep the Wireless Network Name field blank Default Channel The channel sets the center frequency of the Access Point In a LAN to LAN configuration the Access Points need to be set to the same channel In a wireless client configuration with multiple Access Points adjacent Access Points should be set to different channels that are at least 5 channels apart recommended For example in a configu...

Страница 35: ...r string to generate Keyvalue Key 1 2 3 and 4 These fields allow you to enter the WEP keys Type ten hexadecimal digits any combination of 0 9 a f or A F for 64 bit WEP keys To protect WEP key security existing WEP keys do not appear in the entry fields You can write over existing keys but you cannot edit or delete them Caution The WEP keys for your network must be set up exactly the same on your A...

Страница 36: ...ve Bridge Signal Strength When the Access Point functions as a wireless LAN bridge it shows signal strength between Master Bridge and Slave Bridge Apply Changes After entering new values for settings click Apply Changes button to activate the new settings Undo Changes If you want to restore Access Point configuration press this button ...

Страница 37: ...vides the same function as terminal emulator programs just like HyperTerminal program explained above section And you can do same things as you use terminal program Refer above Open Terminal Program section Terminal Window for Diagnosis ...

Страница 38: ...n this page the Access Point will automatically be rebooted to activate the new firmware Before you update Access Point s firmware you could check current Access Point s firmware version through the F W Upgradewindow The firmware can be updated through two ways one is via Internet and the other is via local disk or file server Firmware Upgrade Window ...

Страница 39: ... that supports latest Access Point firmware version If you have defined URL address press Start button so that the firmware can be transferred to your local disk Program File Ò LG Electronics Ò AP Manager During the firmware down load if there is an error or file transfer failed then an error message will be displayed After complete the firmware downloading the Manager performs Access Point firmwa...

Страница 40: ...ed and then Access Point Manager program tries to make a new connection with the Access Point Meanwhile the Access Point that have received new firmware version go on self restarts process In order to upgrade Access Point firmware via local disk click the Local Disk button In Firmware Upgrade Via Local Disk ...

Страница 41: ...er you click Browse button select the firmware that you want to update In this time you should take special attention in opening file so that not to open wrong file or firmware version After confirm the file name click the Start button The other processes from this stage are the same as those of the Internet ...

Страница 42: ... information about wireless LAN air interface specifications do not change default options More detail information about how to change detail configuration will be explained in Access Point Management section Beacon Period The amount of time between beacons DTIM Period Access Point Detail Control ...

Страница 43: ...s is NOT the same as the wired MAC address printed on the front of the AP 2 Set the Bridge Mode to LAN to LAN as described in above Access Point Configuration Window section s Type item 3 Make sure that the APs use the same channel To change the AP channel see Access Point Configuration Window section The AP provides the following bridging services Store and forward capability The AP receives chec...

Страница 44: ...ates at t he Data Link layer of the Open System Interconnection OSI model Operation at this layer makes the AP transparent to the protocols that use the LAN connectivity service This protocol transparency is a key factor in the extended LAN service ...

Страница 45: ...Page 45of 50 Chapter 4 Troubleshooting T B D ...

Страница 46: ...e data rate There will be a decrease in receiver threshold sensitivity as the radio data rate increases Antenna Type and Placement PCI card only Proper antenna configuration is a critical factor in maximizing radio range As a general guide range increases in proportion to antenna height For a detailed explanation of antenna types and configurations along with guidelines on selecting antennas for s...

Страница 47: ...d a large area can be covered with minimal system cost The total bandwidth available to each mobile station will depend on the amount of data each mobile station desires to transfer and the number of stations located in each cell Seamless roaming is supported as a mobile station moves in and out of range of each LG Access Point thereby maintaining a constant connection to the wired LAN Each device...

Страница 48: ...d setup Local monitor Access Point Manager Modes Access Point Wireless LAN Bridge Status Display Power Air Link Status Wire Link status Software Upgradeable Via Access Point Manager or local monitor Security WEP 64 bit standard upgradeable to 128 bit Approval FCC in processing Max No of Clients per AP 255 ...

Страница 49: ...medium quality FCC ID FCC approval Number of Channels Max 13 Refer Appendix CHANNEL Channeling 5 MHz increments Programmable for IEEE 802 11b Type of Modulation BPSK 1 Mbit s QPSK 2 Mbit s CCK 5 5 and 11 Mbits s Nominal 10 MHz BW 6 dB Receiver sensitivity 87 dBm 1 Mbps 85 dBm 2 Mbps 84 dBm 5 5 Mbps 81 dBm 11 Mbps Wired LAN Interface 10Base T RJ45 Connector Serial Interface RS 232 19 2Kbps DB 9 fem...

Страница 50: ...are shown in the table below as appropriate for the various areas or regulatory agencies Regulatory Domains Channel Identifier Center Frequency North America ETSI korea Spain France Japan 1 2412MHz 2 2417MHz 3 2422MHz 4 2427MHz 5 2432MHz 6 2437MHz 7 2442MHz 8 2447MHz 9 2452MHz 10 2457MHz 11 2462MHz 12 2467MHz 13 2472MHz 14 2484MHz ...

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