ASUSTeK Computer WL300G Wireless LAN Access Point User Manual WL 300g UserMan

ASUSTeK Computer Inc Wireless LAN Access Point WL 300g UserMan

users manual

SpaceLink™ 802.11g Access PointWL-300g(For 802.11g and 802.11b Wireless Clients)®User’s Manual
2 ASUS SpaceLink 802.11g Access PointNo part of this manual, including the products and software described in it,may be reproduced, transmitted, transcribed, stored in a retrieval system,or translated into any language in any form or by any means, exceptdocumentation kept by the purchaser for backup purposes, without theexpress written permission of ASUSTeK COMPUTER INC. (“ASUS”).ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTYOF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUTNOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONSOF MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT,SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OFBUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESSAND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THEPOSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECTOR ERROR IN THIS MANUAL OR PRODUCT.Product warranty or service will not be extended if: (1) the product isrepaired, modified or altered, unless such repair, modification of alterationis authorized in writing by ASUS; or (2) the serial number of the product isdefaced or missing.Products and corporate names appearing in this manual may or may not beregistered trademarks or copyrights of their respective companies, and areused only for identification or explanation and to the owners’ benefit, withoutintent to infringe.SPECIFICATIONS AND INFORMATION CONTAINED IN THISMANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, ANDARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, ANDSHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUSASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORSOR INACCURACIES THAT MAY APPEAR IN THIS MANUAL,INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.Copyright © 2003 ASUSTeK COMPUTER INC. All Rights Reserved.Copyright InformationProduct Name: SpaceLink 802.11g Access Point (WL-300g)Manual Revision: 1 E1289Release Date: April 2003
ASUS SpaceLink 802.11g Access Point 3Copyright InformationASUSTeK COMPUTER INC. (Asia-Pacific)Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112General Tel: +886-2-2894-3447General Fax: +886-2-2894-3449General Email: info@asus.com.twTechnical SupportMB/Others (Tel):+886-2-2890-7121 (English)Notebook (Tel): +886-2-2890-7122 (English)Desktop/Server: +886-2-2890-7123 (English)Support Fax: +886-2-2890-7698Support Email: tsd@asus.com.twWeb Site: www.asus.com.twASUS COMPUTER INTERNATIONAL (America)Address: 44370 Nobel Drive, Fremont, CA 94538, USAGeneral Fax: +1-510-608-4555General Email: tmd1@asus.comTechnical SupportSupport Fax: +1-510-608-4555General Support: +1-510-739-3777Web Site: www.asus.comSupport Email: tsd@asus.comASUS COMPUTER GmbH (Germany & Austria)Address: Harkortstr. 25, 40880 Ratingen, BRD, GermanyGeneral Fax: +49-2102-442066General Email: sales@asuscom.de (for marketing requests only)Technical SupportSupport Hotline: MB/Others: +49-2102-9599-0Notebook (Tel): +49-2102-9599-10Support Fax: +49-2102-9599-11Support (Email): www.asuscom.de/de/support (for online support)Web Site: www.asuscom.de
4 ASUS SpaceLink 802.11g Access PointTable of Contents1. Introduction ............................................................................. 7Overview................................................................................................ 7The SpaceLink™ Family ................................................................... 8System Requirements..................................................................... 10The Product Package ..................................................................... 10Features .......................................................................................... 11Wireless Operation .............................................................................. 12Roaming Between SpaceLink™ Gateways or APs......................... 13Roaming Guidelines (SpaceLink™ Gateways or APs) ................... 14SpaceLink™ Home Gateway Topology .......................................... 15LED Indicators ..................................................................................... 182. Hardware Installation ............................................................ 19Installation Procedure .......................................................................... 19Wired and Wireless Connections ........................................................ 21Configuring the SpaceLink 802.11g AP ............................................... 23Installing the Homegateway Utilities ............................................... 25Homegateway Utilities ......................................................................... 26Connecting to the SpaceLink Web Manager ....................................... 26Home Gateway Discovery ................................................................... 27User Name and Password .............................................................. 29Home Page ..................................................................................... 29Quick Setup ......................................................................................... 30Wireless ............................................................................................... 31IP Config .............................................................................................. 35NAT Setting ......................................................................................... 37Internet Firewall ................................................................................... 38Wireless Firewall ................................................................................. 39System Setup ...................................................................................... 40Status & Log ........................................................................................ 41Firmware Restoration .......................................................................... 42Using a Hub .................................................................................... 42Printer Setup Wizard ........................................................................... 43Add Printer Wizard .......................................................................... 43Printer Setup Wizard ....................................................................... 45Verifying Your Printer ...................................................................... 46
ASUS SpaceLink 802.11g Access Point 5Table of Contents4. Wireless Performance ........................................................... 47Site Topography................................................................................... 47Site Surveys ........................................................................................ 47Range .................................................................................................. 485. Troubleshooting..................................................................... 49Common Problems and Solutions ....................................................... 49Reset to Defaults ................................................................................. 506. Appendix................................................................................. 53Operating frequency range .................................................................. 53Number of operating channels ............................................................ 53DSSS PHY frequency channel plan .................................................... 53Specifications ...................................................................................... 54IEEE 802.11b (11Mbits/sec) ............................................................ 61Direct-Sequence Spread Spectrum (for 802.11b) ........................... 62IEEE 802.11a (54Mbits/sec) ........................................................... 63COFDM (for 802.11a) ..................................................................... 64Federal Communications Commission Statement .......................... 65Canadian Department of Communications ..................................... 66Regulatory Information / Disclaimers .............................................. 66Safety Information ........................................................................... 66MPE Statement ............................................................................... 67Caution Statement of the FCC Radio Frequency Exposure ........... 67RF Exposure ................................................................................... 67
6 ASUS SpaceLink 802.11g Access Point
1. IntroductionASUS SpaceLink 802.11g Access Point 7Chapter 1 - Introduction1. IntroductionOverviewThank you for purchasing the ASUS SpaceLink 802.11g Access Point. TheASUS SpaceLink 802.11g Access Point is designed to be fully compliantwith IEEE 802.11g wireless local area networks (WLAN). 802.11g is anextension to 802.11b, used in majority of wireless LANs today. 802.11gwill broaden 802.11b's data rates to 54 Mbps within the 2.4 GHz bandusing OFDM (orthogonal frequency division multiplexing) technology.802.11g allows backward compatibility with 802.11b devices but only at11 Mbps or lower depending on the range and presence of obstructions.Wireless LANs are complementary extensions to existing wired LANs, offeringcomplete mobility while maintaining continuous network connectivity to bothcorporate and home Intranets. They add a new level of convenience for LANusers. PC users stay connected to the network anywhere throughout a buildingwithout being bound by a LAN wires. This is accomplished through the use ofSpaceLink Access Points. SpaceLink Access Points with built-in Internetgateway capability, allows your family to share a broadband Modem and oneISP account simultaneously from different rooms without wires! ASUSSpaceLink products can keep you connected anywhere, any time.
1. IntroductionChapter 1 - Introduction8 ASUS SpaceLink 802.11g Access PointThe SpaceLink™ FamilyThe SpaceLink™ Wireless PCI Card is a member of a product family thatprovides a complete wireless networking solution.The above illustrations are not to scale.The SpaceLink™Cardbus Card (WL-200) is a dual band (IEEE802.11a/b) wireless LANadapter that fits into aNotebook PC’sPCMCIA Type II slotwith Cardbus support.LNKAIRThe SpaceLink™PC Card (WL-100)is a IEEE 802.11bwireless LANadapter that fits intoa PCMCIA Type IIslot in a NotebookPC.The SpaceLink™CF Card (WL-110)is a IEEE 802.11bwireless LANadapter that fits intoa Compact FlashType II slot in aPortable DigitalAssistant (PDA).The SpaceLink™Access Point (WL-300) creates a wirelessnetwork using theIEEE 802.11bwireless standard.The SpaceLink™ Home Gateway(WL-500) creates a wireless networkusing the IEEE 802.11b wirelessstandard and allows sharing a singleInternet connection.The SpaceLink™PCI Card (WL-230)is a dual band (IEEE802.11a/b) wirelessPCI card that supportsIEEE 802.11a,802.11b, andBluetooth.
1. IntroductionASUS SpaceLink 802.11g Access Point 9Chapter 1 - IntroductionThe SpaceLink™ Dual-BandHome Gateway (WL-600) createsa wireless network using the IEEE802.11b and 802.11a wirelessstandards and allows sharing a singleInternet connection.The USB SpaceLink™ Client(WL-140) is an IEEE 802.11bwireless USB LAN adapter thatconnects to any computer’s USBport with the benefit of being ableto place the antenna anywhere inorder to maximize signal strength.The SpaceLink802.11g Access Point(WL-300g) creates awireless networkusing the IEEE802.11g and 802.11bwireless standards.
1. IntroductionChapter 1 - Introduction10 ASUS SpaceLink 802.11g Access PointSystem RequirementsTo begin using the SpaceLink Access Point, you must have the followingminimum requirements:• An Ethernet (10Base-T or 10/100Base-TX) adapter for wired client• At least one 802.11g (54Mbps) or one 802.11b (11Mbps) wirelessadapter for wireless mobile clients• TCP/IP and an Internet browser installedNote: The SpaceLink™ Access Point only supports 10Base-T, there-fore it cannot be connected to pure 100Base-TX networks. The net-work must be either 10-Base or 10/100Base-TX.The Product PackageEach SpaceLink™ Access Point comes with:• One SpaceLink™ 802.11g Access Point• One SpaceLink™ 802.11g Access Point Quick Start Guide• One SpaceLink™ 802.11g Access Point User’s Manual• One power adapter (5 Volts DC, 1 Amp)• One support CD (utilities and documentation)• One RJ-45 Ethernet cable (straight-through)• One Bracket for ceiling mounting• One Bracket for office partition mounting• One Sticker for wall mounting alignment
1. IntroductionASUS SpaceLink 802.11g Access Point 11Chapter 1 - IntroductionWireless OperationThe SpaceLink 802.11g Access Point supports three modes of operation:•Access Point: The SpaceLink 802.11g Access Point operates as a stand-alone device to provide network access to wireless mobile clients.•Access Point Client: The SpaceLink 802.11g Access Point partnerswith another SpaceLink 802.11g Access Point to provide network accessto wireless mobile clients.•Wireless Bridge: The SpaceLink 802.11g Access Point communicatesonly with other SpaceLink Access Points that are set to Wireless BridgeMode. (SpaceLink Access Points set to Wireless Bridge mode cannotsupport wireless mobile clients.)By default, the SpaceLink 802.11g Access Point operates in Access Pointmode.Access Point ModeIn “Access Point” mode, the SpaceLink 802.11g Access Point will operateas a MAC layer learning bridge and forward packets between wirelessmobile clients and the Ethernet network.A wireless LAN that uses the SpaceLink 802.11g Access Point in “AccessPoint” mode generally consists of one or more 802.11b Access Points andone or more wireless mobile clients that have an 802.11b adapter installed.The SpaceLink 802.11g Access Point maintains a table of MAC addresses,which it has learned are located either on the Ethernet network or on theradio network by monitoring the source address of packets it receives. Forexample, if the SpaceLink 802.11g Access Point receives a packet over itsradio, it creates an entry in its table for the node that sent the packet andlabels the entry as a member of the radio network. The SpaceLink 802.11gAccess Point removes an entry from the table after five minutes of inactivity.When the SpaceLink 802.11g Access Point receives a packet from theEthernet network, it compares the packet’s destination address with thenode addresses listed in its table. If the packet’s destination address is notin the table, the SpaceLink 802.11g Access Point will forward the packet tothe wireless mobile clients. If the packet’s destination address is listed inthe table as a member of the radio network, the SpaceLink 802.11g AccessPoint will forward the packet to the wireless mobile clients. If the packet’sdestination address is listed in the table as a member of the Ethernet network,the SpaceLink
1. IntroductionChapter 1 - Introduction12 ASUS SpaceLink 802.11g Access PointAccess Point will not forward the packet to the wireless mobile clients.The SpaceLink 802.11g Access Point applies the same principles todetermine if a packet received over its radio should be forwarded to theEthernet network.The SpaceLink 802.11g Access Point forwards all broadcast packets towireless mobile clients. Given this, the SpaceLink 802.11g Access Pointcan only support a limited amount of network traffic. It is recommendedthat you only use the SpaceLink 802.11g Access Point on networks thatcontain less than 512 nodes.The number of wireless mobile clients that can be supported by theSpaceLink 802.11g Access Point depends on the amount of informationthat each client exchanges with the network. Therefore, the number of clientsthat can be supported by one SpaceLink 802.11g Access Point will varybased on the applications in use and how frequently network informationis accessed.Roaming Between SpaceLink Access PointsIf there are multiple SpaceLink Access Points on the network, then a wirelessmobile client may seamlessly roam from one SpaceLink 802.11g AccessPoint to another.Each SpaceLink 802.11g Access Point creates its own wireless cell orcoverage area. This is also known as a Basic Service Set (BSS). Any wirelessmobile client can communicate with a particular SpaceLink 802.11g AccessPoint if it is within the SpaceLink Access Point’s coverage area.If the cells of multiple SpaceLink Access Points overlap, then the wirelessmobile client may switch from one SpaceLink 802.11g Access Point toanother as it travels throughout the facility. During the hand-off from oneSpaceLink 802.11g Access Point to another, the wireless mobile clientmaintains an uninterrupted connection to the network. This is known as“roaming.”Multiple SpaceLink Access Points connected to a common Ethernet networkform an Extended Service Set (ESS). All members of an Extended ServiceSet are configured with an ID, known as the SSID or ESSID. Wirelessmobile clients must be configured with the same SSID as the SpaceLinkAccess Points on the network; a client can only roam between SpaceLinkAccess Points that share the same SSID.
1. IntroductionASUS SpaceLink 802.11g Access Point 13Chapter 1 - IntroductionRoaming Guidelines• An 802.11b PC Card can only roam between 802.11b Access Points.• All SpaceLink Access Points must have the same SSID.• All computers with SpaceLinkPC card or CF card adapters must havethe same SSID as the Access Points that they will roam between.• If WEP encryption is enabled, then all SpaceLink Access Points andclient adapters must use the same encryption level and WEP Key(s) tocommunicate.• The SpaceLink Access Points’ cells must overlap to ensure that thereare no gaps in coverage and to ensure that the roaming client will alwayshave a connection available.• SpaceLink Access Points that use the same Channel should be installedas far away from each other as possible to reduce potential interference.• It is strongly recommended that you perform a site survey using theutility provided with the SpaceLinkPC card or CF card to determine thebest location for each SpaceLink 802.11g Access Point in the facility.
1. IntroductionChapter 1 - Introduction14 ASUS SpaceLink 802.11g Access PointPower (Amber)Air (Green)Link (Green)SpaceLink 802.11g Access Point LEDIndicatorsThere are three LEDs on the front of the SpaceLink Access Point, as shownhere.Power LEDThe Power LED is the top LED and turns amber when the power adapter isconnected and the power switch is turned ON.Air LEDThe Air LED is the middle LED and turns green when the wireless functionis working.Link LEDThe Link LED is the bottom LED and turns green when the Access Pointhas a physical connection to the Ethernet network.Power RequirementsThe SpaceLink 802.11g Access Point requires power from an external powersupply. The SpaceLink 802.11g Access Point ships with a UL listed, Class2 power supply (5V, 1A).
1. IntroductionASUS SpaceLink 802.11g Access Point 15Chapter 1 - Introduction2. InstallationThis chapter describes the installation procedure for the SpaceLink 802.11gAccess Point and includes a description of the LEDs found on the unit.Installation ProcedureFollow these steps to install the SpaceLink Access Point.1. Determine the best location for the SpaceLink Access Point. Keep inmind the following considerations:• The length of the Ethernet cable that connects the Access Point tothe network must not exceed 100 meters.• For standard placement, try to place the Access Point on a flat, sturdysurface as far from the ground as possible, such as on top of a deskor bookcase, keeping clear of metal obstructions and away fromdirect sunlight.• Try to centrally locate the Access Point or its antennas so that it willprovide coverage to all of the wireless mobile devices in the area.• Use only the power supply that came with this unit. Other powersupplies may fit but the voltage and power may not be compatible.It is the responsibility of the installer and users of the SpaceLink802.11g Access Point to guarantee that the antenna is operated atleast 20 centimeters from any person. This is necessary to insurethat the product is operated in accordance with the RF Guidelinesfor Human Exposure which have been adopted by the Federal Com-munications Commission.2. Place the Access Point in the desired location. Wall mounting is alsopossible for the Access Point. Refer to the section entitled “WallMounting Option” on the next page for details.3. Attach one end of an RJ-45 Ethernet cable to the Access Point andattach the other end to the RJ-45 10Base-T port of a network hub, switch,router, or patch panel (possibly on a wall).The SpaceLink 802.11g Access Point does not support 100Base-TX; it only supports 10Base-T. Hubs or switches that supports both10Base-T and 100Base-TX may be used.
1. IntroductionChapter 1 - Introduction16 ASUS SpaceLink 802.11g Access Point4. Attach one end of the AC power adapter, included in the product package,to the back of the SpaceLink 802.11g Access Point and the other end toa power outlet.Wall Mounting OptionOut of the box, the SpaceLink 802.11g Access Point is designed to sit on araised flat surface like a file cabinet or book shelf. The unit may also beconverted for mounting to a wall or ceiling.Follow these steps to mount the Access Point to a wall:1. Remove the base by pressing the tab and sliding the base.2. Remove the side cover to expose the mounting hooks.3. Locate the screws provided with the Access Point.4. Mark two holes in a flat surface using the provided hole template.5. Tighten the two provided screws until only 1/4” is showing.6. Latch the Access Point onto the two screws.Note: Readjust the screws if you cannot latch the Access Point ontothe screws or if it is too loose.Note: Use the Access Point only with the power adapter supplied inthe product package. Using another power supply may damage theAccess Point.The Power LED on the front of the Access Point will light up when the unitis powered ON. In addition, the green Link LED will turn ON to indicatethat the Access Point has a physical Ethernet network connection.
1. IntroductionASUS SpaceLink 802.11g Access Point 17Chapter 1 - Introduction12Step 1Before: After:Step 2Before: After:Note: Mounting brackets are provided for you to hang the SpaceLink802.11g Access Point on an office partition or office ceiling.
Chapter 2 - Installation2. Installation18 ASUS SpaceLink 802.11g Access PointConfiguring the SpaceLink 802.11g APThe home gateway can be configured to meet various usage scenarios.Some of the factory default settings may suit your usage; however, othersmay need changing. Prior to using the home gateway, you must check thebasic settings to guarantee it will work in your environment.Configuring the SpaceLink 802.11g Access Pointis done through a webbrowser. You need a Notebook PC or desktop PC connected to the SpaceLink802.11g Access Pointand running a web browser as a configuration terminal.The connection can be wired or wireless. For the wireless connection, youneed an IEEE 802.11b compatible device, e.g. ASUS SpaceLink PC Card,installed in your Notebook PC. You should also disable WEP and set theSSID to “default” for your wireless LAN device.If you want to configure the SpaceLink 802.11g Access Pointor want toaccess the Internet through the SpaceLink Dual-Band Home Gateway, TCP/IP settings must be correct. Normally, the TCP/IP setting should be on theIP subnet of the SpaceLink Dual-Band Home Gateway. The SpaceLink802.11g Access Pointincorporates a DHCP server so the easiest method isto set your PC to get its IP address automatically and reboot your computer.So the correct IP address, gateway, DNS (Domain Name System Server)can be obtained from the SpaceLink Dual-Band Home Gateway.Note: Before rebooting your PC, the SpaceLink 802.11g AccessPointshould be switched ON and in ready state.
2. InstallationChapter 2 - InstallationASUS SpaceLink 802.11g Access Point 19Advanced IP SettingsIf you want to set your IP address manually, the following default settingsof the SpaceLink 802.11g Access Pointshould be known:• IP address 192.168.123.1• Subnet Mask 255.255.255.0.If you set your computer’s IP manually, it needs to be on the same segment.For example:• IP address 192.168.123.xxx (xxx can be any number between 2 and254 that is not used by another device)• Subnet Mask 255.255.255.0 (same as the SpaceLink 802.11g AccessPoint)• Gateway 192.168.123.1 (this is the SpaceLink 802.11g Access PointIP ad-dress)• DNS 192.168.123.1 (SpaceLink 802.11g Access PointIP address or yourown).
Chapter 2 - Installation2. Installation20 ASUS SpaceLink 802.11g Access PointInstalling the Homegateway UtilitiesFollow these steps to install the SpaceLink Dual-Band Home GatewayManager in Microsoft Windows:(1) Insert the support CD. Double-clicksetup.exe if your autorun has beendisabled. Click Install...Utilities.(2) Click Next after reading the welcomescreen.(3) Click Yes after reading the licenseagreement.(5) Click Next to accept the defaultprogram folder or enter another name.(4) Click Next to accept the defaultdestination folder or click Browse tospecify another path.(6) Click Finish when setup is complete.
3. UtilitiesASUS SpaceLink 802.11g Access Point 21Chapter 3 - Home Gateway UtilitiesHomegateway UtilitiesAfter installation, you can launch the utilities through the Start menu.Connecting to the SpaceLink Web ManagerWired Ethernet ConnectionBesides using a network hub, you can also connect a LAN cable from yourcomputer’s network card to the Home Gateway using either a straight orcrossover cable because the SpaceLink 802.11g Access PointLAN andWLAN RJ-45 ports have auto-crossover capability.Wireless ConnectionIf you are using a Notebook PC with a wireless adapter, you can connect tothe SpaceLink Homegateway Web Manager without a wired Ethernetconnection.
3. Utilities22 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesManually Entering the AddressYou can also open your PC’s web browser and enter the IP address of theASUS SpaceLink 802.11g AP: http://192.168.1.1Home Gateway DiscoveryRun the ASUS Homegateway Discovery from the Start menu and clickConfig on the device.
3. UtilitiesASUS SpaceLink 802.11g Access Point 23Chapter 3 - Home Gateway UtilitiesIf you cannot find any theSpaceLink 802.11g APs due toa problem in the IP settings,push and hold the “Restore”button on the SpaceLink802.11g AP over five seconds torestore factory default settings.Home Gateway Discovery (Cont.)Web access through the WLAN port (over the Internet) is disabled by defaultso that the above private IP can be used for configuration access. If Internetaccess through the WLAN port is enabled by the user, port 8080 must beused for configuration access. In this case, you would enter the following:http://(WAN Port IP Address):8080 in your web browser.If your computer’s IP is not on thesame subnet as the SpaceLink Dual-Band Home Gateway, you will beasked to change it. The IP address canbe any number from 2 to 254 that isnot used by another device.Restart your Windows if you areasked to.Restore
3. Utilities24 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesHome PageAfter logging in, you will see the ASUS 802.11g AP home page.User Name and PasswordOnce connected, a window will askfor the User name and Password inorder to log in. The factory defaultvalues are “admin” and “admin”.Home Gateway Discovery (Cont.)
3. UtilitiesASUS SpaceLink 802.11g Access Point 25Chapter 3 - Home Gateway UtilitiesQuick SetupClick Next to enter the Quick Setup page. Follow theinstructions to setup the ASUS SpaceLink Dual-Band HomeGateway.
3. Utilities26 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesWirelessClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.
3. UtilitiesASUS SpaceLink 802.11g Access Point 27Chapter 3 - Home Gateway UtilitiesSSID & ChannelThe SSID is an identification string of up to 32 ASCII characters thatdifferentiate one SpaceLink Home Gateway or Access Point from another.The SSID is also referred to as the “ESSID” or “Extended Service Set ID.”You can use the default SSID and radio channel unless more than one SpaceLinkHome Gateway or Access Point is deployed in the same area. In that case, youshould use a different SSID and radio channel for each SpaceLink HomeGateway or Access Point. All the SpaceLink Home Gateways and SpaceLink802.11b client adapters must have the same SSID to allow a wireless mobileclient to roam between the SpaceLink Home Gateways. By default, theSSID is set to “default”.ChannelIEEE 802.11b devices are direct sequence spread spectrum devices thatspread a radio signal over a range of frequencies. The range of frequenciesused by a direct sequence device is called a Channel.The IEEE 802.11b specification supports up to 14 overlapping Channelsfor radio communication. But only 11 Channels are supported in the UnitedStates and therefore on the SpaceLink Home Gateway. To minimizeinterference, configure each the SpaceLink Home Gateway to use Non-overlapping channels. Non-overlapping channels have 25Mhz separationbeginning at the first allowed channel for the country (for the US and mostof Europe, channels 1, 6 & 11 are used).Make sure that the SpaceLink Home Gateways sharing the same Channel(or Channels close in number) are as far away from each other as possible,based on the results of your site survey of the facility. You can find the sitesurvey utility in the SpaceLink PC card or CF card setup CD.RateSelect “1, 2, 5.5 & 11Mbps” to maximize performance. Use “1 & 2 Mbps”only when backward compatibility is needed for some older wireless LANcards with a maximum bit rate of 2Mbps.The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5 Mbps,2 Mbps, and 1 Mbps. As a wireless mobile client travels further and furtheraway from the SpaceLink Home Gateway, the data rate automatically decreasesin order to maintain a usable radio connection. Therefore, a client that is closeto an the SpaceLink Home Gateway may operate at 11 Mbps, but a client thatis far away from the SpaceLink Home Gateway may operate at 2 Mbps.
3. Utilities28 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesAuthentication MethodIt is suggested to select “Shared Key Only”. If “Open System Only” or“Shared Key and Open System” is used, the home gateway may acceptconnection requests from unauthorized wireless clients.WEPThe IEEE 802.11b standard specifies an optional encryption feature, knownas Wired Equivalent Privacy or WEP, that is designed to provide a wirelessLAN with a security level equal to what is found on a wired Ethernet network.WEP encrypts the data portion of each packet exchanged on the 802.11bnetwork using either a 64-bit or 128-bit encryption algorithm. In addition,WEP is also used in conjunction with the optional Shared KeyAuthentication algorithm to prevent unauthorized devices from associatingwith an 802.11b network.Enabling WEP can protect your data from eavesdroppers. If you do notneed this feature, select “no” to skip the following setting. The SpaceLinkHome Gateway supports both 64-bit and 128-bit encryption using the WiredEquivalent Privacy (WEP) algorithm. Select the type of encryption youwant to use (64 or 128 bit) and configure one to four WEP Keys. The “128-bit” method is more secure than the “64-bit”.64/128bits versus 40/104bitsYou may be confused about configuring WEP encryption, especially whenusing multiple wireless LAN products from different vendors. There aretwo levels of WEP Encryption: 64 bits and 128 bits.Firstly, 64 bit WEP and 40 bit WEP are the same encryption method andcan interoperate in the wireless network. This lower level of WEP encryptionuses a 40 bit (10 Hex character) as a “secret key” (set by user), and a 24 bit“Initialization Vector” (not under user control). This together makes 64bits (40 + 24). Some vendors refer to this level of WEP as 40 bits andothers refer to this as 64 bits. ASUS SpaceLink products use the term 64bits when referring to this lower level of encryption.Secondly, 104 bit WEP and 128 bit WEP are the same encryption methodand can interoperate in the wireless network. This higher level of WEPencryption uses a 104 bit (26 Hex character) as a “secret key” (set by user),and a 24 bit “Initialization Vector” (not under user control). This together
3. UtilitiesASUS SpaceLink 802.11g Access Point 29Chapter 3 - Home Gateway Utilitiesmakes 128 bits (104 + 24). Some vendors refer to this level of WEP as 104bits and others refer to this as 128 bits. ASUS SpaceLink products use theterm 128 bits when referring to this higher level of encryption.PhraseAutomatically generate four WEP keys. A WEP key is either 10 or 26hexadecimal digits (0~9, a~f, and A~F) based on whether you select 64 bitor 128 bit in the WEP pull-down menu. Type a combination of up to 64letters, numbers, or symbols in the Magic Word column, then the SpaceLinkHome Gateway Manager uses an algorithm to generate four WEP keys forencryption. If you want to type in the keys manually, leave this field blank.The SpaceLink family of products all use the same algorithm to generatethe keys so that they can all use the same WEP key.Note: This function eases users from having to remember theirpasswords and is compatible to ASUS SpaceLink family of prod-ucts. But this is not as secure as manual assignment.WEP KeyAt most four keys can be set. A WEP key is either 10 or 26 hexadecimaldigits (0~9, a~f, and A~F) based on whether you select 64 bit or 128 bit inthe WEP pull-down menu. The home gateway and ALL of its wireless clientsMUST have at least the same default key.Default KeyThe Default Key field lets you specify which of the four encryption keysyou use to transmit data on your wireless LAN. As long as the SpaceLinkHome Gateway or wireless mobile client with which you are communicatinghas the same key in the same position, you can use any of the keys as thedefault key. If the home gateway and ALL of its wireless clients use thesame four WEP keys, select “key rotation” to maximize security. Otherwise,choose one key in common as the default key.
3. Utilities30 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesIP ConfigClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.Static IP AddressIP Address - Normally, this is Dynamic (because fixed IP accounts costmore) and should be set to Automatic IP. Do not use “Static IP” if yourISP’s documentation does not mention an IP Address. If your ISP providedan IP Address with instructions to use it, select Static IP from “IP AddressingMethod” and enter the address into the provided field.WAN DNS SettingsDNS Server - Normally this is automatic and you would answer “NO” tothe question about manually assigning DNS. If you are given instructionsfrom your ISP to enter DNS addresses, select “YES” to manually assigningDNS and enter the IP addresses here. You can set the DNS server anytimeusing any connection type (Static IP, PPPoE, or Automatic IP).
3. UtilitiesASUS SpaceLink 802.11g Access Point 31Chapter 3 - Home Gateway UtilitiesClick the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.PPPoE AccountUser Name - The name of your Internet account provided by your ISP.Some ISPs work with the entire account name along with the hosting domain(such as yourname@yourdomain.com) and others require that you enteronly the account name (yourname). See the example above.Password - Enter the password for your Internet account.
3. Utilities32 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesNAT SettingClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.
3. UtilitiesASUS SpaceLink 802.11g Access Point 33Chapter 3 - Home Gateway UtilitiesInternet FirewallClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.
3. Utilities34 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesWireless FirewallClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.
3. UtilitiesASUS SpaceLink 802.11g Access Point 35Chapter 3 - Home Gateway UtilitiesSystem SetupClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.System Setup - Change PasswordThis page will allow you to change the default password “admin” (lowercase) to any password of you choice. You can enter any usable charactersbetween 1-16 characters long (cannot be left blank). Click Save button tosave your new password. If you forget the SpaceLink Home Gateway’spassword, you can reset the SpaceLink Home Gateway to its factory settings(see troubleshooting).Note: The password is case sensitive.
3. Utilities36 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesStatus & LogClick this item on the menu to reveal a sub menu. Followthe instructions to setup the ASUS SpaceLink Dual-BandHome Gateway. Tips are given when you move your cursorover each item.The Status page gives you all the necessary informationfor monitoring the SpaceLink Home Gateway’s condition.
3. UtilitiesASUS SpaceLink 802.11g Access Point 37Chapter 3 - Home Gateway UtilitiesFirmware RestorationThis utility will automatically search out failed SpaceLink 802.11g APsand upload a firmware that you specify. The process takes about 3 to 4minutes and during this process the PWR, AIR, and WLAN LEDs willremain lit while the LAN LED will flash slowly.The Firmware Restoration utility is an emergency rescue tool to restore aSpaceLink 802.11g AP which has failed during a previous firmware upload.A failed firmware upgrade will cause the SpaceLink 802.11g AP to enter afailure mode, waiting for the user to use the Firmware Restoration utility tofind and upload a new firmware. This is not a firmware upgrade utility andcannot be used on a working SpaceLink 802.11g AP. Normal firmwareupgrades must be done through the web manager.Using a HubIf you have problems upload a firmware while using a network hub, tryconnecting your computer directly to the LAN port. Either 10Base-T or100Base-TX connections will work.
3. Utilities38 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway Utilities(1) Run the “Add Printer Wizard” from Start| Printers and Faxes | Add Printer. (2) Choose “Install by the Add PrinterWizard”.(3) Choose “Local printer attached to thiscomputer”. (4) Choose “Remote Port (Printer SharingPort)”. If this is not available, select LPT1.Printer Setup WizardThis utility helps you setup your computers to utilize the printer serverfunction of the SpaceLink Dual-Band Home Gateway.Add Printer WizardYou should add your printer to your computer to simplify the SpaceLink 802.11gAccess PointPrinter Setup Wizard. If you run the “Printer Setup Wizard” withoutyour printer driver installed, it will direct you to the “Add Printer Wizard”.
3. UtilitiesASUS SpaceLink 802.11g Access Point 39Chapter 3 - Home Gateway Utilities(5) Find your manufacturer and model.Click Have Disk if you cannot find it inthe list and use the driver provided withyour printer.(6) Click Next to set this as your defaultprinter.(7) You can print a test page. (8) Click Finish to close the wizard.Your printer will show in the “Printers andFaxes” window and the check mark showsthat it is set as your default printer.Printer Setup Wizard (Cont.)
3. Utilities40 ASUS SpaceLink 802.11g Access PointChapter 3 - Home Gateway UtilitiesPrinter Setup WizardThe wizard will explore all available SpaceLink Dual-Band Home Gatewaysand model information of the printers attached to them in your local network.(2) If the printer is found, the name of theprinter will be shown on this screen.(1) If you already have your printer installedon your printer port (LPT1), it will makethis setup process much easier. Seenext page for instructions. Run thePrinter Setup Wizard from the WindowsStart menu.(3) This setup wizard will change yourdefault printer to use “Remote Port”which is serviced by the SpaceLinkDual-Band Home Gateway.(4) Click Done when setup is complete.Note: If there is anerror communicatingwith the printer, youwill get this message.Make sure that the printer is ON, ready, andconnected. Click Back and Next.
3. UtilitiesASUS SpaceLink 802.11g Access Point 41Chapter 3 - Home Gateway UtilitiesVerifying Your PrinterAfter setting up the printer, a printer iconwill appear in Windows’ “Printers andFaxes”. Right click the printer icon andchoose Properties to configure the printer.If your printer was previously setup, theSpaceLink 802.11g Access Pointprintersetup wizard will change your printing portfrom your local LPT1 (parallel) port to“Remote Port”. If necessary, you canchange this back at anytime or useWindows “Add Printer” to setup anotherprinter on whatever port you require.When properly setup, the SpaceLink802.11g Access Pointwill show the printername in the “Homegateway Discovery”utility and show “on-line” under the “PrinterServer” on the “Status” page of the webmanager.
4. Performance42 ASUS SpaceLink 802.11g Access PointChapter 4 - Wireless Performance4. Wireless PerformanceThis section provides the user with ideas for how to improve the performanceof a SpaceLink 802.11b network.Site TopographyFor optimal performance, locate wireless mobile clients and the SpaceLink802.11g APs away from transformers, heavy-duty motors, fluorescent lights,microwave ovens, refrigerators, and other industrial equipment. Signal losscan occur when metal, concrete, walls or floors block transmission. Locatethe SpaceLink 802.11g APs in open areas or add the SpaceLink 802.11gAPs as needed to improve coverage.Microwave ovens operate in the same frequency band as the SpaceLink802.11g AP. Therefore, if you use a microwave within range of theSpaceLink 802.11g AP you may notice network performance degradation.However, both your microwave and your the SpaceLink 802.11g AP willcontinue to function.Site SurveysA site survey (utility provided with the SpaceLink PC card and CF card)analyzes the installation environment and provides users withrecommendations for equipment and its placement. The optimum placementof 11 Mbps Home Gateways differs for 1 or 2 Mbps Home Gateways,because the locations and number of Home Gateways required are different.
4. PerformanceASUS SpaceLink 802.11g Access Point 43Chapter 4 - Wireless PerformanceRangeEvery environment is unique with different obstacles, barriers, materials,etc. and, therefore, it is difficult to determine the exact range that will beachieved without testing. However, has developed some guidelines toestimate the range that users will see when the product is installed in theirfacility, but there are no hard and fast specifications.Radio signals may reflect off of some obstacles or be absorbed by othersdepending on their construction. For example, with two 802.11b radios,you may achieve up to 1000' in open space outdoors where two deviceshave a line of sight, meaning they see each other with no obstacles. However,the same two units may only achieve up to 300' of range when used indoors.The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5 Mbps,2 Mbps, and 1 Mbps. Operation at 1 Mbps provides greater range thanoperation at 11 Mbps. The SpaceLink 802.11g Access Pointwillautomatically adjust the data rate to maintain a usable radio connection.Therefore, a client that is close to the SpaceLink 802.11g Access Pointmayoperate at 11 Mbps while a client that is on the fringe of coverage mayoperate at 1 Mbps. As mentioned earlier, you can configure the data ratesthat the SpaceLink 802.11g Access Pointwill use. Note that if you limit therange of data rates available to the SpaceLink Dual-Band Home Gateway,you may reduce the effective wireless range of the SpaceLink 802.11bproducts.
5. Troubleshooting44 ASUS SpaceLink 802.11g Access PointChapter 5 -TroubleshootingLocation of antenna connectorSlide the right side cover back to reveal the antenna connector.Note: Optional antenna kits are not currently available. Check withyour local dealer for availability.
5. TroubleshootingASUS SpaceLink 802.11g Access Point 45Chapter 5 -Troubleshooting5. TroubleshootingThe SpaceLink Access Point is designed to be very easy to install and operate.However, if you experience difficulties, use the information in this chapterto help diagnose and solve problems. If you cannot resolve a problem, contactTechnical Support, as listed on the front of this manual.Common Problems and SolutionsProblemAP does not power up:Solution• Check for faulty SpaceLink Access Point power supply by measuringthe output voltage with an electrical test meter.• Check failed AC supply (power outlet)ProblemCannot communicate with the SpaceLink Access Point through a wirednetwork connection.Solution• Verify network configuration by ensuring that there are no duplicate IPaddresses. Power down the device in question and ping the assigned IPaddress of the device. Ensure no other device responds to that address.• Check that the cables used have proper pin outs and connectors or useanother LAN cable.• Check that the hub, switch, or computer that the SpaceLink Access Pointis connected to supports 10Mbps speed.This is what you will see if you connect the SpaceLink Access Point to a: 10/100 Mbps Hub Pure 100 Mbps HubHub LED ON OFFAccess Point (Link) LED ON ONSo you will not know if the connection is bad from the SpaceLink AccessPoint Link LED alone, you will have to look at the Hub LED if you are notsure what kind of hub the SpaceLink Access Point is attached to.
5. Troubleshooting46 ASUS SpaceLink 802.11g Access PointChapter 5 -TroubleshootingProblemThe SpaceLink Access Point Manager still cannot find or connectto the SpaceLink Access Point after verifying the IP address andLAN cable, changes cannot be made, or password is lost.SolutionIn case the SpaceLink Access Point is inaccessible, you canrestore the SpaceLink Access Point’s factory default settings.Use a straightened paper clip to press the button located inthe hole labeled “Reset” on the back of the SpaceLink AccessPoint and keep it depressed over 5 seconds. The amber powerLED will darken and then light up when reset is successful.Reset to DefaultsThe following are factory default values. These values will be present when youfirst receive your SpaceLink Access Point, if you push the reset button on theback of the SpaceLink Access Point over 5 seconds, or if you click the “Reset toDefaults” on the “General” page of the SpaceLink Access Point Manager.Name Default ValuePassword “asus”IP address assignment obtain an IP address automaticallyPrimary port EthernetIP address 192.168.39.130Subnet mask 255.255.255.0Gateway 0.0.0.0SSID “default”Channel 1WEP type WEP disableAP name “ASUS AP”Operational mode AP modeOnly allow IP packets DisableAuthorization table DisableHost AP / Wireless Bridge MAC Add. 00-00-00-00-00-00Fragmentation threshold 2346RTS threshold 2346Preamble mode Long preambleAuthentication type Both
5. TroubleshootingASUS SpaceLink 802.11g Access Point 47Chapter 5 -TroubleshootingProblemMy 802.11b PC Card will not associate with the SpaceLink Access Point.SolutionFollow these steps:1. Try to bring the devices closer together; the PC Card may be out ofrange of the SpaceLink Access Point.2. Confirm that the SpaceLink Access Point and PC Card have the sameSSID.3. Confirm that the SpaceLink Access Point and PC Card have the sameEncryption settings, if enabled.4. Confirm that the SpaceLink Access Point’s Air and Link LEDs are solidgreen.5. Confirm that the authorization table includes the MAC address of theSpaceLink PC card if “Authorization Table” is enabled.6. Confirm that the operational mode is “Access Point” mode.7. Confirm that the SpaceLink Access Point and SpaceLink PC card havethe same preamble mode.ProblemThe throughput seems slow.SolutionTo achieve maximum throughput, verify that your antennas are well-placed,not behind metal, and do not have too many obstacles between them. Ifyou move the client closer to the SpaceLink Access Point and throughputincreases, you may want to consider adding a second SpaceLink AccessPoint and implementing roaming.• Check antenna, connectors and cabling.• Verify network traffic does not exceed 37% of bandwidth.• Check to see that the wired network does not exceed 10 broadcastmessages per second.• Verify wired network topology and configuration.
5. Troubleshooting48 ASUS SpaceLink 802.11g Access PointChapter 5 -TroubleshootingProblemHow do I upgrade the firmware on the SpaceLink Access Point?SolutionPeriodically, a new Flash Code is available for SpaceLink Access Pointson the Web site at http://www.asus.com. Ideally, you should update anAccess Point’s Flash Code using the “ASUS AP Live Update” utilityinstalled along with the “ASUS AP Manager”. See the next section forinstructions on using “ASUS AP Live Update”.ProblemI cannot find SpaceLink Access Points using the SpaceLink Access Point Manager.SolutionTo configure the SpaceLink Access Point through a wireless LAN card,your computer must be in the same subnet of the SpaceLink Access Point.You cannot find SpaceLink Access Points with subnet different from yourcomputer within the same gateway. You must change your computer to thesame subnet as the SpaceLink Access Point. The factory default subnet ofthe SpaceLink Access Point is "192.168.39.0".If you put the SpaceLink Access Point on different subnets, but physicallyconnected inside the same gateway, the following symptoms will occur:For example, if your computer’s TCP/IP settings are:IP address: 192.168.1.1, Subnet mask: 255.255.255.0AP TCP/IP Settings Ethernet Network Wireless LANIP address 192.168.2.130 192.168.2.130 192.168.2.130Subnet mask 255.255.255.0 255.255.255.0 255.255.255.0Gateway 0.0.0.0 Not 0.0.0.0 Any valueSuccess of Search AP Yes, then you can No, you should No, you shouldchange the AP to “reset to defaults”, 1. “reset to defaults”match your subnet then search again. 2. change your PC’s IPaddress to 192.168.39.Xthen search againIn Windows NT/2000/XP, you must login with Administrator privi-leges so that all functions of the SpaceLink Access Point Managercan function correctly. If you do not login as a member of the Ad-ministrator group, you cannot run Access Point Manager.
AppendixASUS SpaceLink 802.11g Access Point 49Appendix6. AppendixOperating frequency rangeThe DSSS PHY shall operate in the frequency range of 2.4 GHz to 2.4835GHz as allocated by regulatory bodies in the USA and Europe or in the 2.471GHz to 2.497 GHz frequency band as allocated by regulatory authority in Japan.Number of operating channelsThe channel center frequencies and CH ID numbers shall be as shown below.The FCC (US), IC (Canada), and ETSI (Europe) specify operation from 2.4GHz to 2.4835 GHz. For Japan, operation is specified as 2.471 GHz to 2.497GHz. France allows operation from 2.4465 GHz to 2.4835 GHz, and Spainallows operation from 2.445 GHz to 2.475 GHz. For each supported regulatorydomain, all channels marked with “Yes” shall be supported.In a multiple cell network topology, overlapping and/or adjacent cells usingdifferent channels can operate simultaneously without interference if thedistance between the center frequencies is at least 30 MHz. Channel 14shall be designated specifically for operation in Japan.DSSS PHY frequency channel plan(Regulatory Domains)CH ID Frequency X’10' X’20' X’30' X’31' X’32' X’40'FCC IC ETSI Spain France MKK1 2412 MHz Yes Yes Yes - - Yes2 2417 MHz Yes Yes Yes - - Yes3 2422 MHz Yes Yes Yes - - Yes4 2427 MHz Yes Yes Yes - - Yes5 2432 MHz Yes Yes Yes - - Yes6 2437 MHz Yes Yes Yes - - Yes-7 2442 MHz Yes Yes Yes - - Yes8 2447 MHz Yes Yes Yes - - Yes9 2452 MHz Yes Yes Yes - - Yes10 2457 MHz Yes Yes Yes Yes Yes Yes11 2462 MHz Yes Yes Yes Yes Yes Yes12 2467 MHz - - Yes - Yes Yes13 2472 MHz - - Yes - Yes Yes14 2484 MHz - - - - - Yes
Appendix50 ASUS SpaceLink 802.11g Access PointAppendixSpaceLink Access Point SpecificationsThe following technical specification is for reference purposes only. Actualproduct’s performance and compliance with local telecommunicationsregulations may vary from country to country. ASUS will only ship productsthat are type approved in the destination country.Ethernet Interface RJ45 for 10BaseT with auto crossover MDI/MDI-XData Rate 11 Mbps with auto fallback to 5.5, 2 and 1 MbpsModulation CCK (11Mbps, 5.5Mbps), DQPSK (2Mbps), DBPSK (1Mbps)Technology Direct Sequence Spread SpectrumRF Output Power 14 ~ 17 dBm (at nominal temperature range)Antenna 2 internal polarization diversity dipole antennas,One RF connector for optional external antennaRange Indoor 130 ft (40 m), semi-open 330 ft (100 m),outdoor (LOS, Light-Of-Sight) 1500 ft (457 m) at 11MbpsThe range may vary by different environmentReceiver Sensitivity Per< 8% @ length=1024 octets (at nominal temp. range)11Mbps: -82 to -85 dBm; 5.5Mbps: -85 to -88 dBm;2 Mbps: -88 to -91 dBm; 1 Mbps: -91 to -93 dBmOperating Frequency 2.412 to 2.462 GHz (North America)2.412 to 2.484 GHz (Japan)2.412 to 2.472 GHz (Europe ETSI)2.457 to 2.462 GHz (Spain)2.457 to 2.472 GHz (France)WEP 64/128-bit WEP; each includes 4 user-defined keysUtilities AP Manager: User-friendly utility for discovering andconfiguring SpaceLink Access Points with AccessControl List featuresAP Live Update: Download the newest firmware fromthe Internet
AppendixASUS SpaceLink 802.11g Access Point 51AppendixSupported OS Windows 98, 98SE, ME, NT4, 2000, XPSNMP Support MIB II, Proprietary Wireless MIBsLED Indicators Power, Wireless, EthernetDC Power Adapter AC Input: 100V to 240V(50 to 60HZ)DC Output: 5V with max. 1 A currentOperating Temp. 0ºC to 55ºCStorage Temp. -20ºC to 70ºCHumidity 5 to 95% (non-condensing)Emissions ETS 300 328 and ETS 300 826; CE MarkFCC Part 15C, Section 15.247Size 40 mm (L) 138 mm (W) 150 mm (H) (± 0.2)Weight 400 g excluding power supplyWarranty One Year Limited WarrantyOperating ModesAccess Point Standard 802.11b based access point, providesroaming capability between Wi-Fi compliant AccessPointsAccess Point Client Act as a client station to associate with existing accesspoints and bridge traffic from Ethernet port to a remotebackbone network through the wireless interfaceWireless Bridge Point-to-point or point-to-multi-points to bridge individualnetworks
Appendix52 ASUS SpaceLink 802.11g Access PointAppendixDNS Server Address (Domain Name System)DNS allows Internet host computers to have a domain name and one ormore IP addresses. A DNS server keeps a database of host computers andtheir respective domain names and IP addresses, so that when a user entersa domain name into the Internet browser, the user is sent to the proper IPaddress. The DNS server address used by the computers on your homenetwork is the location of the DNS server your ISP has assigned.DSL Modem (Digital Subscriber Line) - A DSL modem uses your existingphone lines to transmit data at high speeds.Direct-Sequence Spread SpectrumSee next few pages for detailed explanation.EncryptionThis provides wireless data transmissions with a level of security.Extended Service Set (ESS)A set of one or more interconnected basic service set (BSSs) and integratedlocal area networks (LANs) can be configured as an Extended Service Set.ESSID (Extended Service Set Identifier)You must have the same ESSID entered into the gateway and each of itswireless clients. The ESSID is a unique identifier for your wireless network.EthernetThe most widely used LAN access method, which is defined by the IEEE802.3 standard. Ethernet is normally a shared media LAN meaning alldevices on the network segment share total bandwidth. Ethernet networksoperate at 10Mbps using CSMA/CD to run over 10-BaseT cables.FirewallA firewall determines which information passes in and out of a network.NAT can create a natural firewall by hiding a local network’s IP addressesfrom the Internet. A Firewall prevents anyone outside of your network fromaccessing your computer and possibly damaging or viewing your files.
AppendixASUS SpaceLink 802.11g Access Point 53AppendixGatewayA network point that manages all the data traffic of your network, as wellas to the Internet and connects one network to another.IEEEThe Institute of Electrical and Electronics Engineers. The IEEE setsstandards for networking, including Ethernet LANs. IEEE standards ensureinteroperability between systems of the same type.IEEE 802.11IEEE 802.xx is a set of specifications for LANs from the Institute ofElectrical and Electronic Engineers (IEEE). Most wired networks conformto 802.3, the specification for CSMA/CD based Ethernet networks or 802.5,the specification for token ring networks. 802.11 defines the standard forwireless LANs encompassing three incompatible (non-interoperable)technologies: Frequency Hopping Spread Spectrum (FHSS), DirectSequence Spread Spectrum (DSSS), and Infrared. 802.11 specifies a carriersense media access control and physical layer specifications for 1 and 2Mbps wireless LANs.IEEE 802.11a / IEEE 802.11bSee next few pages for detailed explanations.InfrastructureA wireless network centered about an access point. In this environment,the access point not only provides communication with the wired networkbut also mediates wireless network traffic in the immediate neighborhood.IP (Internet Protocol)The TCP/IP standard protocol that defines the IP datagram as the unit ofinformation passed across an Internet and provides the basis forconnectionless packet delivery service. IP includes the ICMP control anderror message protocol as an integral part. It provides the functionalequivalent of ISO OSI Network Services.IP AddressAn IP address is a 32-bit number that identifies each sender or receiver ofinformation that is sent across the Internet. An IP address has two parts: theidentifier of a particular network on the Internet and an identifier of theparticular device (which can be a server or a workstation) within that network.
Appendix54 ASUS SpaceLink 802.11g Access PointAppendixISM Bands (Industrial, Scientific, and Medicine Bands)Radio frequency bands that the Federal Communications Commission(FCC) authorized for wireless LANs. The ISM bands are located at 902MHz, 2.400 GHz, and 5.7 GHz.ISP (Internet Service Provider)An organization that provides access to the Internet. Small ISPs provideservice via modem and ISDN while the larger ones also offer private linehookups (T1, fractional T1, etc.).LAN (Local Area Network)A communications network that serves users within a defined geographicalarea. The benefits include the sharing of Internet access, files and equipmentlike printers and storage devices. Special network cabling (10 Base-T) isoften used to connect the PCs together.MAC Address (Media Access Control) - A MAC address is the hardwareaddress of a device connected to a network.NAT (Network Address Translation) - NAT masks a local network’s groupof IP addresses from the external network, allowing a local network ofcomputers to share a single ISP account. This process allows all of thecomputers on your home network to use one IP address. This will enableaccess to the Internet from any computer on your home network withouthaving to purchase more IP addresses from your ISP.NIC (Network Interface Card)A network adapter inserted into a computer so that the computer can beconnected to a network. It is responsible for converting data from stored inthe computer to the form transmitted or received.PacketA basic message unit for communication across a network. A packet usuallyincludes routing information, data, and sometimes error detectioninformation.
AppendixASUS SpaceLink 802.11g Access Point 55AppendixPCMCIA (Personal Computer Memory Card InternationalAssociation)The Personal Computer Memory Card International Association (PCMCIA),develops standards for PC cards, formerly known as PCMCIA cards. Thesecards are available in three types, and are have about the same length andwidth as credit cards. However, the different width of the cards ranges inthickness from 3.3 mm (Type I) to 5.0 mm (Type II) to 10.5 mm (Type III).These cards can be used for various functions, including memory storage,landline modems and wireless modems.PPP (Point-to-Point Protocol)PPP is a protocol for communication between computers using a serialinterface, typically a personal computer connected by phone line to a server.PPPoE (Point-to-Point Protocol over Ethernet)Point-to-Point Protocol is a method of secure data transmission. PPP usingEthernet to connect to an ISP.Radio Frequency (RF) Terms: GHz, MHz, HzThe international unit for measuring frequency is Hertz (Hz), equivalent tothe older unit of cycles per second. One megahertz (MHz) is one millionHertz. One gigahertz (GHz) is one billion Hertz. The standard US electricalpower frequency is 60 Hz, the AM broadcast radio frequency band is 0.55-1.6 MHz, the FM broadcast radio frequency band is 88-108 MHz, andwireless 802.11 LANs operate at 2.4 GHz.SSID (Service Set ID)SSID is a group name shared by every member of a wireless network. Onlyclient PCs with the same SSID are allowed to establish a connection.StationAny device containing IEEE 802.11 wireless medium access conformity.Subnet MaskA subnet mask is a set of four numbers configured like an IP address. It isused to create IP address numbers used only within a particular network.
Appendix56 ASUS SpaceLink 802.11g Access PointAppendixTCP (Transmission Control Protocol)The standard transport level protocol that provides the full duplex, streamservice on which many application protocols depend. TCP allows a processor one machine to send a stream of data to a process on another. Softwareimplementing TCP usually resides in the operating system and uses the IPto transmit information across the network.WAN (Wide Area Network)A system of LANs, connected together. A network that connects computerslocated in separate areas, (i.e., different buildings, cities, countries). TheInternet is a wide area network.WECA (Wireless Ethernet Compatibility Alliance)An industry group that certifies cross-vender interoperability andcompatibility of IEEE 802.11b wireless networking products and to promotethat standard for enterprise, small business, and home environments.WLAN (Wireless Local Area Network)This is a group of computers and other devices connected wirelessly in asmall area. A wireless network is referred to as LAN or WLAN.
AppendixASUS SpaceLink 802.11g Access Point 57AppendixIEEE 802.11b (11Mbits/sec)In 1997, the Institute of Electrical and Electronics Engineers (IEEE) adoptedthe 802.11 standard for wireless devices operating in the 2.4 GHz frequencyband. This standard includes provisions for three radio technologies: directsequence spread spectrum, frequency hopping spread spectrum, andinfrared. Devices that comply with the 802.11 standard operate at a datarate of either 1 or 2 Mbps.In 1999, the IEEE created the 802.11b standard. 802.11b is essentiallyidentical to the 802.11 standard except 802.11b provides for data rates ofup to 11 Mbps for direct sequence spread spectrum devices. Under 802.11b,direct sequence devices can operate at 11 Mbps, 5.5 Mbps, 2 Mbps, or 1Mbps. This provides interoperability with existing 802.11 direct sequencedevices that operate only at 2 Mbps.Direct sequence spread spectrum devices spread a radio signal over a rangeof frequencies. The IEEE 802.11b specification allocates the 2.4 GHzfrequency band into 14 overlapping operating Channels. Each Channelcorresponds to a different set of frequencies. See the Appendix to determinethe center frequency used by each Channel.If operating multiple 802.11b Wireless PCI Cards in the same vicinity, thedistance between the center frequencies must be at least 25 MHz to avoidinterference. Note that the Channels available to an 802.11b Wireless PCICard will vary from country to country. In the United States, the 802.11bstandard allocates 11 operating Channels for direct sequence devices. Channels1, 6, and 11 are independent and do not overlap with each other. To avoidinterference between 802.11b Wireless PCI Cards, It is recommended thatyou configure the Wireless PCI Cards using only Channels 1, 6, and 11.
Appendix58 ASUS SpaceLink 802.11g Access PointAppendixDirect-Sequence Spread Spectrum (for 802.11b)Spread spectrum (broadband) uses a narrowband signal to spread thetransmission over a segment of the radio frequency band or spectrum. Direct-sequence is a spread spectrum technique where the transmitted signal isspread over a particular frequency range. The Space Link Wireless PCICard uses Direct-Sequence Spread Spectrum (DSSS) for radiocommunication.Direct-sequence systems communicate by continuously transmitting aredundant pattern of bits called a chipping sequence. Each bit of transmitteddata is mapped into chips by the Wireless PCI Card and rearranged into apseudorandom spreading code to form the chipping sequence. The chippingsequence is combined with a transmitted data stream to produce the WirelessPCI Card output signal.Wireless mobile clients receiving a direct-sequence transmission use thespreading code to map the chips within the chipping sequence back intobits to recreate the original data transmitted by the Wireless PCI Card.Intercepting and decoding a direct-sequence transmission requires apredefined algorithm to associate the spreading code used by the transmittingWireless PCI Card to the receiving wireless mobile client.This algorithm is established by IEEE 802.11b specifications. The bitredundancy within the chipping sequence enables the receiving wirelessmobile client to recreate the original data pattern, even if bits in the chippingsequence are corrupted by interference. The ratio of chips per bit is calledthe spreading ratio. A high spreading ratio increases the resistance of thesignal to interference. A low spreading ratio increases the bandwidthavailable to the user. The Wireless PCI Card uses a constant chip rate of11Mchips/s for all data rates, but uses different modulation schemes toencode more bits per chip at the higher data rates. The Wireless PCI Cardis capable of an 11 Mbps data transmission rate, but the coverage area isless than a 1 or 2 Mbps Wireless PCI Card since coverage area decreases asbandwidth increases.
AppendixASUS SpaceLink 802.11g Access Point 59AppendixIEEE 802.11a (54Mbits/sec)The 802.11b standard was designed to operate in the 2.4-GHz ISM(Industrial, Scientific and Medical) band using direct-sequence spread-spectrum technology. The 802.11a standard, on the other hand, was designedto operate in the more recently allocated 5-GHz UNII (Unlicensed NationalInformation Infrastructure) band. And unlike 802.11b, the 802.11a standarddeparts from the traditional spread-spectrum technology, instead using afrequency division multiplexing scheme that's intended to be friendlier tooffice environments.The 802.11a standard, which supports data rates of up to 54 Mbps, is theFast Ethernet analog to 802.11b, which supports data rates of up to 11Mbps. Like Ethernet and Fast Ethernet, 802.11b and 802.11a use an identicalMAC (Media Access Control). However, while Fast Ethernet uses the samephysical-layer encoding scheme as Ethernet (only faster), 802.11a uses anentirely different encoding scheme, called OFDM (orthogonal frequencydivision multiplexing).The 802.11b spectrum is plagued by saturation from wireless phones,microwave ovens and other emerging wireless technologies, such asBluetooth. In contrast, 802.11a spectrum is relatively free of interference.The 802.11a standard gains some of its performance from the higherfrequencies at which it operates. The laws of information theory tiefrequency, radiated power and distance together in an inverse relationship.Thus, moving up to the 5-GHz spectrum from 2.4 GHz will lead to shorterdistances, given the same radiated power and encoding scheme.
Appendix60 ASUS SpaceLink 802.11g Access PointAppendixCOFDM (for 802.11a)Power alone is not enough to maintain 802.11b-like distances in an 802.11aenvironment. To compensate, vendors specified and designed a newphysical-layer encoding technology that departs from the traditional direct-sequence technology being deployed today. This technology is calledCOFDM (coded OFDM). COFDM was developed specifically for indoorwireless use and offers performance much superior to that of spread-spectrum solutions. COFDM works by breaking one high-speed data carrierinto several lower-speed subcarriers, which are then transmitted in parallel.Each high-speed carrier is 20 MHz wide and is broken up into 52subchannels, each approximately 300 KHz wide. COFDM uses 48 of thesesubchannels for data, while the remaining four are used for error correction.COFDM delivers higher data rates and a high degree of multipath reflectionrecovery, thanks to its encoding scheme and error correction.Each subchannel in the COFDM implementation is about 300 KHz wide.At the low end of the speed gradient, BPSK (binary phase shift keying) isused to encode 125 Kbps of data per channel, resulting in a 6,000-Kbps, or6 Mbps, data rate. Using quadrature phase shift keying, you can double theamount of data encoded to 250 Kbps per channel, yielding a 12-Mbps datarate. And by using 16-level quadrature amplitude modulation encoding 4bits per hertz, you can achieve a data rate of 24 Mbps. The 802.11a standardspecifies that all 802.11a-compliant products must support these basic datarates. The standard also lets the vendor extend the modulation schemebeyond 24 Mbps. Remember, the more bits per cycle (hertz) that areencoded, the more susceptible the signal will be to interference and fading,and ultimately, the shorter the range, unless power output is increased.
AppendixASUS SpaceLink 802.11g Access Point 61Appendix7. Safety InformationFederal Communications Commission StatementThis device complies with FCC Rules Part 15. Operation is subject to thefollowing two conditions:• This device may not cause harmful interference, and• This device must accept any interference received, including interferencethat may cause undesired operation.This equipment has been tested and found to comply with the limits for aclass B digital device, pursuant to Part 15 of the Federal CommunicationsCommission (FCC) rules. These limits are designed to provide reasonableprotection against harmful interference in a residential installation. Thisequipment generates, uses, and can radiate radio frequency energy and, ifnot installed and used in accordance with the instructions, may cause harmfulinterference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipmentdoes cause harmful interference to radio or television reception, which canbe determined by turning the equipment off and on, the user is encouragedto try to correct the interference by one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that towhich the receiver is connected.• Consult the dealer or an experienced radio/TV technician for help. CAUTION!You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void yourauthority to operate the equipment.Reprinted from the Code of Federal Regulations #47, part 15.193, 1993.Washington DC: Office of the Federal Register, National Archives andRecords Administration, U.S. Government Printing Office.
Appendix62 ASUS SpaceLink 802.11g Access PointAppendixCanadian Department of CommunicationsThis digital apparatus does not exceed the Class B limits for radio noise emissionsfrom digital apparatus set out in the Radio Interference Regulations of the CanadianDepartment of Communications.This Class B digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la classe B est conforme à la normeNMB-003 du Canada.Regulatory Information / DisclaimersInstallation and use of this Wireless LAN device must be in strict accordancewith the instructions included in the user documentation provided with theproduct. Any changes or modifications (including the antennas) made tothis device that are not expressly approved by the manufacturer may voidthe user's authority to operate the equipment. The manufacturer is notresponsible for any radio or television interference caused by unauthorizedmodification of this device, or the substitution of the connecting cablesand equipment other than manufacturer specified. It is the responsibility ofthe user to correct any interference caused by such unauthorizedmodification, substitution or attachment. Manufacturer and its authorizedresellers or distributors will assume no liability for any damage or violationof government regulations arising from failing to comply with theseguidelines.CAUTION: To maintain compliance with FCC's RF exposure guide-lines, this equipment should be installed and operated with minimumdistance [20cm] between the radiator and your body. Use on the sup-plied antenna. Unauthorized antenna, modification, or attachmentscould damage the transmitter and may violate FCC regulations.Safety InformationIn order to maintain compliance with the FCC RF exposure guidelines,this equipment should be installed and operated with minimum distance[20cm] between the radiator and your body. Use only with supplied antenna.Unauthorized antenna, modification, or attachments could damage thetransmitter and may violate FCC regulations.CAUTION: Any changes or modifications not expressly approvedin this manual could void your authorization to use this device.
AppendixASUS SpaceLink 802.11g Access Point 63AppendixMPE StatementYour device contains a low power transmitter. When device is transmittedit sends out Radio Frequency (RF) signal.Caution Statement of the FCC Radio FrequencyExposureThis Wireless LAN radio device has been evaluated under FCC BulletinOET 65C and found compliant to the requirements as set forth in CFR 47Sections 2.1091, 2.1093, and 15.247(b)(4) addressing RF Exposure fromradio frequency devices. The radiation output power of this Wireless LANdevice is far below the FCC radio frequency exposure limits. Nevertheless,this device shall be used in such a manner that the potential for humancontact during normal operation – as a mobile or portable device but use ina body-worn way is strictly prohibit. When using this device, a certainseparation distance between antenna and nearby persons has to be kept toensure RF exposure compliance. In order to comply with the RF exposurelimits established in the ANSI C95.1 standards, the distance between theantennas and the user should not be less than [20cm].RF ExposureThe antenna(s) used for this transmitter must not be co-located oroperating in conjunction with any other antenna or transmitter.
64 ASUS SpaceLink 802.11g Access Point

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