Wireless LAN Access Point User’s Guide LW1100AP Series Page 1 of 50
Contents Chapter 1 Introduction To The Wireless LAN 1.1 What’s the Wireless LAN? …………………………………… 5 1.2 Wireless LAN Standard and Structure…………………………6 Chapter 2 Setup GoldStream Access Point …………………. 13 2.1 Before You Begin Installation ……………………………… ….13 2.2 Installing The LG LW1100AP Series Access Point …………………………………….15 Adjust the antennas …………………………………………15 Ethernet Cable Connection …………………………………16 Connect The Power Pack …………………………………..17 Connect Serial Cable ………………………………………..
Appendix Appendix A Cell Planning (Radio Range) ……………………………..46 Appendix B Technical Specification ……………………………………48 Appendix C Channel Allocation ……………………………..………….
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
Modifications to this product not authorized by LG Electronics Inc. could void the FCC approval and negate your authority to operate the product. FCC RF Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.
Chapter 1 Introduction To The Wireless LAN A wireless LAN (WLAN) is a flexible data communication system implemented as an extension to, or as an alternative for, a wired LAN within a building or campus. Using electromagnetic waves, WLANs transmit and receive data over the air, minimizing the need for wired connections. Thus, WLANs combine data connectivity with user mobility, and, through simplified configuration, enable movable LANs.
is usually mounted high but may be mounted essentially anywhere that is practical as long as the desired radio coverage is obtained. End users access the WLAN through wireless LAN adapters, which are implemented as PC cards in notebook computers, or use PCI adapters in desktop computers. WLAN adapters provide an interface between the client network operating system (NOS) and the airwaves (via an antenna). The nature of the wireless connection is transparent to the NOS. 1.
for the wireless network, aggregating access for multiple wireless stations onto the wired network. Wireless end stations can be 802.11 PC Card, PCI. ¦ Wireless LAN Network Configuration The 802.11 standard define two modes: infrastructure mode and ad hoc mode (or independent or peer-to-peer). l Ad Hoc Mode Ad hoc mode (also called peer-to-peer mode or an Independent Basic Service Set, or IBSS) is simply a set of 802.
Since most corporate WLANs require access to the wired LAN for services (file servers, printers, Inter-net links) they will operate in infrastructure mode. Distribution System (DS) Ethernet (802.3) Access Point (AP) Service Set (SS) – Multiple Figure 2. Infrastructure Mode ¦ Roaming Wireless communication is limited by how far signals carry for given power output. WLANs use cells, called microcells, similar to the cellular telephone system to extend the range of wireless connectivity.
in order to assess whether a different access point would provide it with better performance characteristics. If it determines that this is the case, it reassociates with the new access point, tuning to the radio channel to which that access point is set. Reassociation usually occurs because the wireless station has physically moved away from the original access point, causing the signal to weaken.
¦ BSS, ESS and SS ID The basic service set (BSS) is the basic building block of WLAN network. Minimum WLAN BSS may 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.
Backbone Network AP #`1 SS ID AP #`2 SS ID = LG = LG ROAMING Re-Configuration Required ESS BSS AP #`3 SSID =LWAP Backbone Network Figure 4.
Chapter 2 Setup LG Access Point 2.1 Before You Begin Installation The LG LW1100AP Series Access Point is a wireless LAN transceiver that can act as the center point of a stand-alone wireless LAN network or as the connection point between wireless and wired networks. In multiple installations, the roaming functionality provided by multiple Access Points allows wireless users to move freely throughout the facility while maintaining seamless, uninterrupted access to the network.
— The Access Point power supply — The LG LW1100AP Series Installation CD If any of these items are missing from the package, contact your Access Point supplier.
2.2 Installing The LG LW1100AP Series Access Point Follow the instructions below to install the Access Point. STEP 1 Adjust the antennas For maximum range, make sure the antennas on your Access Point straight up or straight down, no matter where your Access Point is mounted. 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.
STEP 2 Ethernet Cable Connection 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 3 Connect The Power Pack Plug the Power Pack into a wall outlet or a power strip, and plug the connector into the power receptacle on the back of the Access Point. All three indicators on top of the access point will be bright green. During 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.
STEP 4 Connect Serial Cable If you have a DHCP server, the server automatically assigns an IP address to the Access Point when you connect it to your network. To use the Access Point’s management system, you need to find out the assigned IP address. If you have access to the DHCP server, you can look on the server to find the IP address assigned to the Access Point.
Open the HyperTerminal program on the workstation attached to the Access Point. These instructions describe HyperTerminal for example, but you can use any terminalemulation 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.
Set Bits per second (baud rate) to 19200, Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None. Click OK. The Setup screen appears in the HyperTerminal window. If the text does not appear immediately, press Ente r. If the Access Point has no problem, you can find prompt on the terminal program’s display box: Type disconfig and press Enter 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.
The other options that are displayed can be ignored in this chapter and there will be detail explanation next Access Point Management section STEP 5 Configuration Change Type setconfig and press Enter to change current default configuration settings. Using this command, you can change Access Point’s SSID, Channel number, IP address, MAC address and WEP key enable/disable .
8 RETURN The SSID value is case sensitive and can enter up to 32 characters without banks. 8 RETURN Available channel numbers varies from country. Refer to the Appendix Channel chapter. In addition to this, it there is Access Points 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.
8 RETURN If you use LG LW1100AP as a normal Access Point, select ‘1’. Otherwise, you use it as a point-to-point transmission device you should select ‘2’ or ‘3’. About this usage, detail explanation will be followed next chapter. 8 RETURN If you know what 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.
WEP stands for Wired Equivalent Privacy. WEP is an encryption scheme that provides the secure wireless data communications to the users. WEP uses a 64bit-key or 128bitkey to control the network access. In order to do secure communication over the wireless LAN network, enable WEP function. If you enable WEP function, select one of four WEP default key number. You can choose any one number from 1 to 4. And then, there occur Exclude Unencrypted question.
safe wireless LAN network access. But if you enable WEP function, it will degrade transmission throughput because it take some time to encryption/decryption. These options are provided for wireless LAN expert only, so if you does not have 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.
If you press y then LG Access Point setup 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.
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2.3 Verifying the Operation of the LG Access Point The AP runs a series of self-tests on power-up and reports status using its LEDs. When power-up begins, the following occurs: a. The firmware begins running diagnostics, initializes minimal hardware. b. After the firmware completes its diagnostics and hardware initialization. The diagnostics then checks the RF module to see whether it is properly runs in the AP. And then, the firmware downloads RF module operating program. c.
LED Name Operational State PWR On (Green) = power is okay Orange WLAN = AP Functional Fail Occur 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.
Chapter 3 Access Point Management This chapter describes the pages in the Access Point’s management system. Before installing the LG Access Point Manager, first select a computer that meets these requirements: • Operating system is Windows 95, Windows 98 and Windows 2000, Windows ME or Windows NT4.0 later. • The computer is connected to the Access Point’s wired or wireless LAN.
3.1 Starting a Configuration Tool To modify Access Point parameters after installing the Access Point, you need to use a device connected to the console port or the LG Access Point Manager. 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 Man ager Ú AccessPointManager.
Access Point Connection All the Access Points of LG Electronics Inc. have the same default IP address; 211.189.201.251. If you install the Access Point for the first time, you should type LG Access Point’s default IP on the above IP address input dialog box and then press CONNECT button. If the Access 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.
Access Point Configuratio n Window Once, the Access Point Manager program successfully connected to an Access Point, all the configura tion information of it are displayed Access Point Manager program’s configuration tab window. • Type: 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.
DHCP is enabled for the network. If DHCP is not enabled, this field is the IP address. If DHCP is enabled, this field will only provide the IP address if no DHCP server responds with an IP address for the Access Point. LG’s Access Point has a default IP address - 100.100.100.100 . It is highly recommended that you change the IP address from the default only if you do not use DHCP server. You should not use the default IP address except for the first Access Point setup.
provides the secure wireless data communications to the users. WEP uses a 64bit-key or 128bit-key to control the network access. In order to do secure communication over the wireless LAN network, enable WEP function. Use this setting to choose whether clients must use data encryption when communicating with this Access Point. • WEP Exclude: WEP Exclude option makes the Access Point service a client that does not use WEP function. • WEP Generation: There are two ways to generate the WEP key.
• Link Quality: When the Access Point functions as a wireless LAN bridge, it shows link quality between Master Bridge and Slave 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.
Terminal Window for Diagnosis The Diagnosis Tab provides 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.
Firmware Upgrade Window Use this page to simultaneously update the Access Point’s system firmware via your local disk or Internet. After making firmwa re updates on 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 Upgrade window. The firmware can be updated through two ways; one is via Internet and the other is via local disk or file server.
Firmware Upgrade Via Internet In order to upgrade Access Point firmware via Internet, click the Internet selection button. If you know an URL address that supply Access Point’s latest firmware version then enter the address in the dialog box. Otherwise click Default URL button. The Default URL addresses LG Electronics Internet homepage that supports latest Access Point firmware version.
If the firmware download processes finished successfully, download completed message is displayed 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. Firmware Upgrade Via Local Disk In order to upgrade Access Point firmware via local disk, click the Local Disk button.
order to use this option, you should have latest firmware version in your local disk already. After 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.
Access Point Detail Control These windows is provided for wireless LAN expert only, so if you does not have 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. • Beacon Period: The amount of time between beacons.
Other items will be explained later vision of this document. 3.2 Setting Bridge Mode You can connect two separate LANs over a wireless link by configuring two LG Access Points to communicate with each other. This is called a LAN-to-LAN connection. Two APs in different buildings using an outdoor antenna to connect the LANs in those buildings can be deployed.
• Data Link layer relay The AP operates at the 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.
Chapter 4 Troubleshooting T.B.D.
Appendix Appendix A Cell Planning (Radio Range) This section provides general guidelines on factors that influence network performance Cell Site Survey Because of differences in component configuration, placement and physical environment, every network application is a unique installation. Before installing the system, users should perform a site survey to determine the optimum utilization of networking components and to maximize range, coverage and network performance.
Radio penetration is greatly influenced by the building material used in construction. For example, drywall construction allows greater range than concrete blocks. Metal or steel construction is a barrier to radio signals. Enhancing Coverage The system architecture options of the wireless station and LG Access Points provide for a variety of coverage alternatives and flexibility. The system can be designed to provide a wide coverage area with minimal overlap or coverage with heavy overlap.
Appendix B Technical Specifications Functional Specification Item Function Configuration and 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 Max.
Electrical/Radio Specifications Item Specification Compliance IEEE802.11b Description Direct Sequence Radio Type Spread-Spectrum 2.4 GHz ISM Band (DSSS) Operating Frequency Range Data Rate 2400-2483.5 MHz North American, ETSI, and Japan channel coverage, factory configurable Depending on data rate Accurate values must be calculated for and environment. 1, 2, 5,5 or 11Mbps FCC ID specific installation. Dynamic rate selection based on radio medium quality.
Appendix C Channel Allocation The channel identifiers and the channel center frequencies of each 22-MHz-wide channel are shown in the table below, as appropriate for the various areas or regulatory agencies.
