Alvarion Technologies DS11 Wireless LAN device User Manual 43500

Alvarion Ltd. Wireless LAN device 43500

Contents

Users manual for indoor model of EUT

BreezeNET DS.11 SeriesAP-DS.11SA-DS.11User'sManualMay, 1999Cat xxxxxxxxRev A
© 1999 by BreezeCOM Ltd. All rights reserved.No part of this publication may be reproduced in any material form without the writtenpermission of the copyright owner.No part of this publication may be reproduced in any material form without the writtenpermission of the copyright owner.Trade NamesBreezeNET and BreezeLINK are trade names of BreezeCOM Ltd. Other brand and productnames are registered trademarks or trademarks of their respective companies.
Statement of ConditionsThe information contained in this manual is subject to change without notice. BreezeCOM Ltd. shall notbe liable for errors contained herein or for incidental or consequential damages in connection with thefurnishing, performance, or use of this manual or equipment supplied with it.WarrantyIn the following warranty text, “the Company” shall mean: - BreezeCOM Inc., for products located in the USA. - BreezeCOM Ltd., for products located outside the USA.This BreezeNET product is warranted against defects in material and workmanship for a period of oneyear. During this warranty period the Company will, at its option, either repair or replace products thatprove to be defective.For warranty service or repair, the product must be returned to a service facility designated by theCompany. Authorization to return products must be obtained prior to shipment. The buyer shall pay allshipping charges to the Company and the Company shall pay shipping charges to return the product to thebuyer.The Company warrants that the firmware designed by it for use with the unit will execute its programminginstructions when properly installed on the unit. The Company does not warrant that the operation of theunit or firmware will be uninterrupted or error-free.Limitation of WarrantyThe foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance bythe buyer, buyer supplied interfacing, unauthorized modification or misuse, operation outside of theenvironmental specifications for the product, or improper site preparation or maintenance. No otherwarranty is expressed or implied. The Company specifically disclaims the implied warranties ofmerchantability and fitness for any particular purpose.Electronic Emission NoticesThis device complies with Part 15 of the FCC rules, ETSI 300-328, UL, UL/C, TUV/GS, and CE.Operation is subject to the following two conditions:1. This device may not cause harmful interference.2. This device must accept any interference received, including interference that may cause undesiredoperation.
FCC Radio Frequency Interference StatementThis equipment has been tested and found to comply with the limits for a class A digital device, pursuantto Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmfulinterference when the equipment is operated in a commercial environment. This equipment generates,uses, and can radiate radio frequency energy and, if not installed and used in accordance with theinstruction manual, may cause harmful interference to radio communications. Operation of this equipmentin a residential area is likely to cause harmful interference in which case the user will be required tocorrect the interference at his own expense.FCC Radiation Exposure StatementThis equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed an operated with the minimum distance between your body and theantenna as shown in the table below:Low gain indoor antennas (≤6dBi) 4.5cm (1.8 inches)High gain outdoor antennas (>6dBi) 30cm (12 inches)Professional Installer (Antennas)WARNING: It is the responsibility of the installer to ensure that when using the outdoor antenna kitsin the United States (or where FCC rules apply), only those antennas certified with the product are used.The use of any antenna other than those certified with the product is expressly forbidden in accordance toFCC rules CFR47 part 15.204.The indoor antennas use a unique connector and do not require professional installation.Information to UserAny changes or modifications of equipment not expressly approved by the manufacturer could void theuser’s authority to operate the equipment and the company’s warranty.Contacting BreezeCOM Technical SupportShould you need assistance beyond the scope of this guide, please contact your local BreezeCOM reselleror distributor. If they cannot solve your problem, feel free to contact the BreezeCOM Technical SupportDepartment. The support representatives can assist you in solving any problems that cannot be solved byyour reseller.When requesting support, please have the following items available:• Configuration of the system, including models of the BreezeCOM equipment used.• Antenna type and cable lengths.
• Site information such as possible radio path problems (like trees, machines, and buildings).• Distance between devices.• Configuration, statistic counters, and error messages as seen on the monitor.• Description of problems encountered.To contact BreezeCOM Technical Support, refer to the Technical Support page of the BreezeCOM website: www.breezecom.com
Table of ContentsBreezeNET DS.11 vii User's ManualTABLE OF CONTENTS1. Introduction............................................................................................................ 11.1 How to Use This Guide..................................................................................................11.2 BreezeNET DS.11 Features ...........................................................................................21.3 BreezNET DS.11 Compatibility and Standards.............................................................31.4 BreezeNET DS.11 Functional Description....................................................................31.4.1 Quick Review of Ethernet....................................................................................... 31.4.2 AP-DS.11 Wireless Base Station ............................................................................ 31.4.3 SA-DS.11 Wireless Bridge Client .......................................................................... 31.5 Where to Use DSSS .......................................................................................................42. Installation ............................................................................................................. 62.1 Checking The LED Indicators .......................................................................................62.2 The Rear Panel...............................................................................................................71.1. Indoor Installation considerations..................................................................................81.1.1. Site Selection Factors............................................................................................. 81.1.2. Antennas for Indoor applications........................................................................... 101.1.3. Construction Materials........................................................................................... 111.1.4. Cell Size ................................................................................................................. 123. System Troubleshooting ...................................................................................... 143.1 Troubleshooting Guide ................................................................................................144. BreezeNET Management Utility........................................................................... 164.1 BreezeNET Management Utility Main Window .........................................................164.1.1 Selecting IP Addresses of Units.............................................................................. 174.1.2 The IP/SNMP Tab................................................................................................... 184.1.3 The General Info Tab.............................................................................................. 20
Table of ContentsUser's Manual viii BreezeNET DS.114.1.4 The WLAN Parameters Tab ................................................................................... 214.1.5 The RSSI tab ........................................................................................................... 224.1.6 The Counters Tab.................................................................................................... 234.1.7 The Station Control Tab ......................................................................................... 244.1.8 The Log Tab............................................................................................................ 254.1.9 Debug Info .............................................................................................................. 264.2 Quick Start to Wireless Networking ............................................................................264.3 More about Cells..........................................................................................................275. Software DownLoad Procedure ........................................................................... 286. Technical specifications....................................................................................... 296.1 Supported Standards ....................................................................................................296.2 Environmental..............................................................................................................296.3 Power specifications ....................................................................................................296.4 Radio specifications.....................................................................................................306.5 Specific features...........................................................................................................306.6 Physical Dimensions ....................................................................................................30
Table of FiguresUser's Manual x BreezeNET DS.11TABLE OF FIGURESFigure 1-1. A Typical DS.11 installation with indoor and outdoor systems ........................5Figure 2-1. DS.11 LEDs .......................................................................................................6Figure 2-2. DS.11 Rear Panel ...............................................................................................7Figure 4-1. BreezeCOM Manager Main Window (IP/SNMP Tab)....................................17Figure 4-2. IP/SNMP Tab ................................................................................................... 18Figure 4-3. The Set IP Dialog Box .....................................................................................19Figure 4-4. General Info Tab ..............................................................................................20Figure 4-5. WLAN Parameters Tab....................................................................................21Figure 4-6. Counters Tab ....................................................................................................23Figure 4-7. The Station Control Tab................................................................................... 24Figure 4-8. Log Tab ............................................................................................................25Figure A-1. A Typical Radio System..............................A-Error! Bookmark not defined.Figure A-2. Attenuation of an RF signal ........................A-Error! Bookmark not defined.Figure A-3. Side View ....................................................A-Error! Bookmark not defined.Figure A-4. Top View.....................................................A-Error! Bookmark not defined.Figure A-5. Radiation Pattern of Directional Antenna...A-Error! Bookmark not defined.Figure A-6. Multipath Reception....................................A-Error! Bookmark not defined.Figure A-7. Fresnel Zone................................................A-Error! Bookmark not defined.Figure A-8. Fresnel Zone Clear of Obstacles .................A-Error! Bookmark not defined.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-1 User’s Guide1. INTRODUCTIONThis chapter describes the main features of the BreezeNET DS.11 Wireless LAN,which includes the following products:• AP-DS.11 - Wireless Base Station• SA-DS.11 - Wireless Bridge ClientAlso in this chapter: relevant standards, compatibility issues, product functionalityand use of the DS (Direct Sequence) WLAN.1.1 How to Use This GuideThis User's Manual contains instructions for overall planning and setting up yourwireless LAN, and provides details of how to install each unit, and how to installantennas and accessories.This manual contains the following chapters:⇒ Chapter 1 Introduction – Explains how to use this manual and presents theBreezeNET DS.11 series.⇒ Chapter 2 Installation – Describes how to install the BreezeNET DS.11 seriesunits.⇒ Chapter 3 System Troubleshooting - Contains a troubleshooting guide forsome of the more common problems which may occur when installing andusing the BreezeNET DS.11 products.⇒ Chapter 4 Using the BreezeNET Management Utility – Describes how touse the BreezeNET Management utility to setup, configure, and manageBreezeNET DS.11 series units.⇒ Chapter 5 Downloading Software Upgrades – Explains how to performfuture upgrades for BreezeNET DS.11 series units using a TFTP application.
Appendix A. Radio Signal PropagationUser's Manual A-2 BreezeNET DS.11⇒ Chapter 6 Technical Specifications - Lists the technical specifications for theBreezeNET DS.11 series units.1.2 BreezeNET DS.11 FeaturesThe following are the main features of the BreezeNET DS.11 series:• Rate - 11 Mbps with 5.5, 2, and 1 Mbps auto fallback rates.• LED Display – Power, Network Activity, and WLAN Load or Signal QualityLEDs indicate the current status of the unit.• Upgrading – Simple, quick, and free software upgrades via TFTP.• Future-proof Investment – All “infrastructure” items in the DS.11 series lineoffer Flash updates.• Management utility – This user-friendly application helps you quickly setupand manage your WLAN. You can save the configuration to a file and importthe file to other stations for fast installation.• Easy Installation - The DS.11 series supports a true plug-and-play.• MIB support - The DS.11 series supports all major SNMP managementsoftware: HP/OpenView, SUN NetManager, SNMPc.• Transmit Diversity - The DS.11 series supports a single or dual antennasdiversity.• Bridge Client Support - Remote bridge clients support is up to 15 milesaway. In addition, the DS.11 series supports up to 64 Bridge clients.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-3 User’s Guide1.3 BreezNET DS.11 Compatibility and Standards• IEEE 802.11 TGb Compliant – All BreezeNET DS.11 series units are fullycompliant with the final IEEE 802.11 specification for wireless LANs, andthus support interoperability with other 802.11 compliant vendors.• Completely inter-operable with other 802.11 and 802.11 TGb products• Supports the common SNMP standard MIB groups and the 802.11 MIB• Uses the 2.4 Ghz ISM unlicensed band1.4 BreezeNET DS.11 Functional DescriptionBreezeNET DS.11 units add wireless functionality to existing Ethernet LANs.1.4.1 Quick Review of EthernetStandard Ethernet LAN stations are wired to a common bus. When one of thestations sends a message, it assigns a destination address to the message and sendsthe message on the bus. All stations on the bus “hear” the message, but only thestation with the proper address processes the message.1.4.2 AP-DS.11 Wireless Access PointThe AP-DS.11 enables 802.11 access to 802.3 (Ethernet) and guarantees inter-station communication.1.4.3 SA-DS.11 Wireless Station AdapterThe SA-DS.11 station adapter connects up to 4 workstations through a hub. When astation on the SA-DS.11’s LAN sends a message that is not destined for a localstation, the SA-DS.11 wirelessly forwards the message to the AP-DS.11. When theAP-DS.11 receives a message destined for a station on the SA-DS.11's LAN, theAP-DS.11 wirelessly forwards it to the SA-DS.11. In this manner, the SA-DS.11and the AP-DS.11 work together like a standard network bridge.
Appendix A. Radio Signal PropagationUser's Manual A-4 BreezeNET DS.11The first time each station on the SA-DS.11’s LAN sends a message, the station’saddress is registered in the SA-DS.11 and the AP-DS.11. The SA-DS.11 and AP-DS.11 can hold all the addresses necessary to support an entire LAN connected to aSA-DS.11.1.5 Where to Use DSSSDSSS technology (Direct Sequence Spread Spectrum) spreads a signal power over22MHz bandwidth; the same frequency is used for each transmission. This providesthe DS.11 with a fast bit rate and long range links, ideal for outdoor bridging.By using a directional antennas, spatial separation, and cross polarizeddiscrimination DS.11 can feed FH (Frequency Hopping) distribution points with noperformance loss.Backbone links - Our DS.11 Bridge has low latency, which makes it ideal forbackbone links of the WLAN.Data rates - The DS.11 is ideal for clients that need high sustained data rates orhigh burst rates.Long links - The DS.11 remote bridging capabilities enables it to support clientsup to 15 mile away.Latency sensitivity - Use the DS.11 for applications that are sensitive to latency.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-5 User’s GuideDSSSWBS-DS.11WBC-DS.11AP-DS.11AP-DS.11DSSSDSSSSA-DS.11SA-DS.11SA-DS.11Figure 1-1. A Typical DS.11 installation with indoor and outdoor systems
Appendix A. Radio Signal PropagationUser's Manual A-6 BreezeNET DS.112. INSTALLATION1. Mount the antenna (see BreezeNET User's Manual) and locate the AP/SAaccordingly.2. Make sure the antennas are in a vertical position (if not, rotate over 90degrees).3. Insert the power connector.4. Attach the Unshielded Twisted Pair (UTP) cable to the Wireless Base Station.5. Switch on the unit.2.1 Checking The LED IndicatorsFigure 2-1. DS.11 LEDsAssociation/Radio TrafficBackboneTrafficPower &FirmwareStatus
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-7 User’s GuideThe following table lists the DS.11 LEDs and their diagnostics:LED Color ExplanationAssociation/Radio TrafficBackbone TrafficPower & Firmware StatusGreen The server sends beacons immediately (10/s).while the station is scanning; the LED blinksirregularly until it is synchronizedPower & Firmware Status Red Firmware did not start. Power fault or wrongfirmware.Backbone Traffic Red No network connection detected. Check thatthe right cable is connected properly (crossedor not crossed).2.2 The Rear PanelFigure 2-2. DS.11 Rear PanelTo reset the unit press the Reset button. Configured parameters will not bechanged.You can reset the unit’s settings to factory defaults by pushing a paper clip in thelittle hole next to the Power switch while switching the unit on.Reset button Power switch PowerconnectorRJ 45connector
Appendix A. Radio Signal PropagationUser's Manual A-8 BreezeNET DS.111.1. Indoor Installation considerationsThis chapter describes various considerations to take into account when planningan indoor installation including site selection, antenna diversity, antennapolarization, construction materials, and cell size.Figure 0.1: BreezeNET LAN in a typical office environment1.1.1. Site Selection FactorsBreezeNET DS.11 wireless LAN products are robust, trouble-free units, designedto operate efficiently under a wide range of conditions. The following guidelinesare provided to help you position the units to ensure optimum coverage andoperation of the wireless LAN.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-9 User’s GuideMetal FurniturePosition the units clear of metal furniture and away from moving objects such asmetal fans or doors.Microwave OvensFor best performance, position the units clear of radiation sources that emit in the2.4 GHz frequency band, such as microwave ovens.AntennasMake sure the antennas are extended upward vertically in relation to the floor. Formodels with external antennas, connect the external antennas and RF cable.Heat SourcesKeep the units well away from sources of heat, such as radiators, air-conditioners,etc.1.1.1.1 Site Selection for Access PointsWhen positioning Access Points, take into account the following additionalconsiderations.HeightInstall the Access Point at least 1.5m above the floor, clear of any high officepartitions or tall pieces of furniture in the coverage area. The Access Point can beplaced on a high shelf, or can be attached to the ceiling or a wall using a mountingbracket.Central LocationInstall the Access Point in a central location in the intended coverage area. Goodpositions are:• In the center of a large room.
Appendix A. Radio Signal PropagationUser's Manual A-10 BreezeNET DS.11• In the center of a corridor.• At the intersection of two corridors.Many modern buildings have partitions constructed of metal or containing metalcomponents. We recommend that you install the Access Points on the corridorceilings. The radio waves propagated by the BreezeNET DS.11 LAN are reflectedalong the metal partitions and enter the offices through the doors or glass sections.1.1.2. Antennas for Indoor applicationsFor most indoor applications, the best choice is the standard unit equipped with itsprovided 5dBi antennas. The units are small, easy to install and cover a large area.In some installations, it is required to install the unit and antenna separately. Insuch instances, use the AP-DS.11 with the omni-6 antenna kit (6dbi omni-directional antenna with 6 feet LMR-600 cable). In the USA (FCC regulated) andin non-regulated countries, the omni-6 comes with a shorter antenna cable,extending the coverage area.The Uni-8.5 is also useful in indoor applications. It is very small and easily wall-mounted, but its radiation pattern is limited (75°).BreezeCOM recommends that, for indoor applications, you use two antennas perunit to utilize the diversity gain of the system.1.1.2.1 Antenna DiversityIn applications where no multipath propagation is expected, a single antenna issufficient to ensure good performance levels. However, in cases where multipathpropagation exists, BreezeCOM recommends that two antennas be used. This takesadvantage of space diversity capabilities. By using two antennas per unit, thesystem can select the best antenna on a per-packet basis (every severalmilliseconds).Multipath propagation is to be expected when there are potential reflectors betweenthe main and remote sites. These reflectors may be buildings or moving objectssuch as airplanes and motor vehicles. If this is the case, the radio signal does not
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-11 User’s Guidetravel in a straight line, but is reflected or deflected off of the object, creatingmultiple propagation paths.When installing a single antenna, modify the transmit antenna option to eitherantenna 1 or antenna 2, according to the antenna being used (refer to sectionError! Reference source not found.).1.1.2.2 Antenna PolarizationAntenna polarization must be the same at either end of the link. In mostapplications, the preferred orientation is vertical polarization. Above-groundpropagation of the signal is better when it is polarized vertically. To verify antennapolarization, refer to the assembly instructions supplied with the antenna set.1.1.3. Construction MaterialsA cell’s coverage area is affected by the construction materials of the walls,partitions, ceilings, floors and the furnishings of the cell. Due to their intrinsicnature, these materials may cause radio signal loss:• Metal objects reflect radio signals. They do not let the signals pass through.• Wood, glass, plastic and brick reflect part of the radio signals and allow partof the radio signals to pass through.• Water and objects with a high moisture content absorb a large part of the radiosignals.Use the following table as a guidline to predict the effects of different materials.
Appendix A. Radio Signal PropagationUser's Manual A-12 BreezeNET DS.11Table 0.1: Signal Loss ChartObstruction Additional Loss(dB)EffectiveRangeApprox. RangeOpen Space 0dB 100% 1000ft. (300m)Window (non-metallic tint) 3dB 70% 700ft. (215m)Window (metallic tint) 5-8dB 50% 500ft. (150m)Light Wall (dry wall) 5-8dB 50% 500ft. (150m)Medium Wall (wood) 10dB 30% 300ft. (100m)Heavy Wall (solid core 6”) 15-20dB 15% 150ft. (50m)Very Heavy Wall (solid core12”)20-25dB 10% 100ft. (30m)Floor/Ceiling (solid core) 15-20dB 15% 150ft. (50m)Floor/Ceiling (heavy solid core) 20-25dB 10% 100ft. (30m)Note: Take stairwells and elevator shafts into consideration when positioning AccessPoints. There is no way to quantify the loss associated with these obstructions,however they do have an effect on the signal.1.1.4. Cell SizeCell size is determined by the maximum possible distance between the AccessPoint and the Station Adapter. This distance varies according to the building floorplan and the nature of that environment. There are several general categories:Open Indoor AreasOpen office areas with no partitioning and no obstacles between the Access Pointand the BreezeNET workstation.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-13 User’s GuideThe suggested maximum distance between Access Point and workstation:Standard AP-DS.11 DS.11: ...........................200m (600 ft.)Semi-Open Indoor AreasOpen-plan offices partitioned into individual workspaces, factory floor areas,warehouses, etc.The suggested maximum distance between Access Point and workstation:Standard AP-DS.11 DS.11 ............................100m (300 ft.)Closed Indoor AreasA floor divided into individual offices by concrete, masonry or sheet-rock walls. Ahouse is also a closed indoor area.The suggested maximum distance between Access Point and workstation:Standard AP-DS.11 DS.11 ............................50m (150 ft.)
Appendix A. Radio Signal PropagationUser's Manual A-14 BreezeNET DS.113. SYSTEM TROUBLESHOOTINGThe following troubleshooting guide provides answers to some of the morecommon problems which may occur when installing and using BreezeNET DS.11Series products. If problems not mentioned in this guide should arise, checking theEthernet and WLAN counters may help (see Section Error! Reference source notfound.). If the problem persists, please feel free to contact your local distributor orthe BreezeCOM Technical Support Department.3.1 Troubleshooting GuideProblem and Indication Possible Cause Corrective ActionNo Power to Unit. PowerLED is off.1. Power cord is notproperly connected.2. Power supply isdefective.1. Verify power cord is properly connectedto the BreezeNET unit and to the poweroutlet.2. If this is not the cause, replace the powersupply.Failure to establish wirelesslink. Association LED is offand unit resets every fewminutes.1. Power supply to unitsmay be faulty2. The units may not havethe same ESSID as theAP-DS.11.1. Verify power to units.2. Verify that all units in the network havethe same ESSID as the AP (ESSID must beidentical in all units in the network):Verify wireless link:Set AP-DS.11 and Bridge unit side by side.Power on each unit and see if a wireless linkis established (even “D” models withouttheir external antennas should establish alink if placed side by side with the AP-DS.11).If the units fail to associate, reset units tofactory default values reset unit (see Section2.2). The units should now establish awireless link.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-15 User’s GuideProblem and Indication Possible Cause Corrective ActionFailure to establish wirelesslink1. Power supply to unitsmay be faulty.2. Cables may beimproperly connected3. There may be someproblem with antennainstallation.1. Verify power to units.2. Verify that all cables are connectedsecurely.3. Refer to previous Section and verifywireless link between the units.4. Verify that the antenna(s) are properlyinstalled (see relevant Section in thismanual):Check antenna alignment.Verify that antenna polarization is the sameat both ends.Verify that the range matches specifications.Verify line-of-sight/antennaalignment/antenna height.Wireless link established,but there is no Ethernetactivity (AP-DS.11 and SA-DS.11 units).1. Ethernet hub port orUTP cable is faulty.2. Ethernet port in unit isfaulty.1. Check that the Association LED is on andsolid at the hub port. If this is not the case,the port is inactive. Try another port on thehub or another UTP cable.2. Verify that Ethernet port in unit isworking. Ping unit to verify Ethernetconnection.3. Verify that you are using a cross-overUTP cable (pins 1 & 3, 2 & 6) if connecteddirectly to workstation, or a straight-throughcable if connected to a hub.4. Check ETHR LED indicator in unit andEthernet counters in Monitor to verifyEthernet activity (see Section 4.1.5).
Appendix A. Radio Signal PropagationUser's Manual A-16 BreezeNET DS.114. BREEZENET MANAGEMENT UTILITYThe BreezeNET DS.11 is an SNMP-based (Simple Network Management Protocol)management utility that provides a consistent view of the wireless network.The systems administrator can use the management utility to control a large numberof DS.11 Access Points from a single location.Among the supported features:• Assign radio channels for optimal cell management• Program an Access Point with a specified IP address• Set the SNMP Write Community strings• Verify the status of all Access Points in the network• Perform a site survey• Antenna selection• Configuration of parameters4.1 BreezeNET Management Utility Main WindowThe BreezeNET Management utility main window consists of two main areas:• The IP and Community Selection area - In this area, you select thecommunity string and address of the unit you wish to manage or edit.• The Tab area - This area consists of five tabs containing parameter requiredfor the management of the WLAN. When you switch between the tabs, the IPSelection area with the selected unit address, remains displayed.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-17 User’s GuideFigure 4-1. BreezeCOM Manager Main Window (IP/SNMP Tab)4.1.1 Selecting IP Addresses of UnitsYou can select a unit's IP address in one of the following ways:• Click the button. All the current units IP addresses(under the selected community) are displayed in the list box below. Double-click on an address to select it.• For stations which are located behind a router, type the unit's address in theLocate unit field and click to display its parameters.• Signal Quality bar - This bar appears only if the selected IP address is a SA-DS.11 unit, and displays the signal quality between the selected Bridge unitand the AP-DS.11 unit connected to it.If the selected IP address is a SA-DS.11 you can view its signal quality in theRSSI tab.Community andIP addressselection areaTabs area
Appendix A. Radio Signal PropagationUser's Manual A-18 BreezeNET DS.11Note: If you select an IP address of a AP-DS.11 unit, the signal quality is displayedin the Signal Quality tab. This tab displays a table that lists all the MACaddresses, connected to that AP, and their signal quality.When the community is Read the parameters are grayed out (disabled).4.1.2 The IP/SNMP TabAll BreezeNET DS.11 units contain IP Host software. This software is used fortesting the unit for SNMP management functions (and for downloading softwareupgrades using the TFTP protocol).Figure 4-2. IP/SNMP TabThe IP/SNMP tab allows you to define or edit IP parameters for the DS.11 units.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-19 User’s Guide4.1.2.1 Assigning and Editing IP Parameters Using the NetworkAutodiscovery1. Type the known Read/Write Community string in the Community field (thedefault string is Private).2. Select a unit address as describe in Section 4.1.1. The unit's Read-Read/WriteCommunity strings appear in the SNMP Communities area of the window, andthe unit's parameters appear in the IP Parameters area of the window:• Read - The read only community string of the unit.• Read/Write - The read/write community string of the unit.• IP Address - The IP address of the selected unit.• Subnet musk -The Subnet mask of the selected unit.• Default gateway - The Default gateway of the selected unit.3. Click to apply configuration4.1.2.2 Assigning and Editing IP Addresses Manually1. Click the button. The Set IP dialog box is displayed.Figure 4-3. The Set IP Dialog Box
Appendix A. Radio Signal PropagationUser's Manual A-20 BreezeNET DS.112. Type the parameters in the appropriate fields and click OK. A message box isdisplayed notifying you when the changes to take affect.4.1.3 The General Info TabThe General Info tab displays general information regarding the unit's firmware andhardware versions, and general unit address information.Figure 4-4. General Info Tab• Firmware - the current firmware version.• Hardware - the current hardware version.• System Name - the name of the selected unit.• Location - location of the selected unit.• MAC Address - MAC address of the selected unit.• BSS Address - BSS address of the selected unit.Note: You can select unit's address in the same way you have selected addresses inthe IP/SNMP tab (i.e., selecting the address from the list, or typing it directly.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-21 User’s Guide4.1.4 The WLAN Parameters TabFigure 4-5. WLAN Parameters Tab1. Set the ESS ID of the WLAN.2. Select a channel.3. Set Antenna diversity to Antenna No. 1, No. 2, or both.4. Set the desired bit rate. For maximum bit rate support, check both 5.5 Mbpsand 11 Mbps.Note: The 1 Mbps and 2 Mbps bit rates are checked by default.In case of interference, the BreezeNET Management utility automatically fallsback to the lower bit rate.
Appendix A. Radio Signal PropagationUser's Manual A-22 BreezeNET DS.114.1.5 The RSSI tabThis tab allows you to view signal quality of WBC units and the associatedstations.Select an IP address as explained previously in Section 4.1.1.In the Associated Stations you can see all the stations associated with the selectedunit and their signal quality.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-23 User’s Guide4.1.6 The Counters TabFigure 4-6. Counters TabSelect a counter and drag it to the graph icon to view the graph.• Transmit Fragment - The total number of transmitted frames. The countincludes data, control and management frames and also the number ofretransmissions of data frames (for example, if the same data frame isretransmitted ten times then the count will increase ten times). In a point-to-point application, this counter should relatively correspond to the number ofbad fragments received on the other side.• Tx Frame Count - The number of frames transmitted to the wireless media.The count includes the first transmission of data frames (withoutretransmissions), and also the number of control and management frames.• Rx Fragments - The total number of frames received, including data, control,and duplicate data frames.• Multicast Rx -• Multicast Tx -
Appendix A. Radio Signal PropagationUser's Manual A-24 BreezeNET DS.114.1.7 The Station Control TabFigure 4-7. The Station Control TabStation Control - Click the button to revert back to the factory defaultsettings.Configuration - Click Import/Export to import or export a complete set ofconfiguration parameters to an external file.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-25 User’s Guide4.1.8 The Log TabFigure 4-8. Log TabWhen an event occurs, a trap is sent to the defined host address. The Log tab allowsyou to configure the host address to which the traps are sent.A list of the last traps is displayed in the event log area, below the Local IP field.The default host address is the IP address of the PC running the BreezeNETManagement utility.1. Select the IP address as explained earlier. the selected address appears in theLocal IP field.2. Click the button to register this address as the host address.3. Repeat Step 2 for all the IP addresses you wish to send traps to.
Appendix A. Radio Signal PropagationUser's Manual A-26 BreezeNET DS.114.1.9 Debug InfoThis option allows you to create a log file, named BreezeLog.log. Later you cansend this log file to BreezeCOM Technical Support and receive help based on theinformation recorded in this file.To start recording, open the Debug Info option and select Start Log.When you finish recording (usually after 24 hours) select Stop Log and send thefile to BreezeCOM Technical Support representatives.4.2 Quick Start to Wireless NetworkingPerform the following steps to configure a WLAN for the first time:1. Physically connect the Access Points to the Ethernet LAN. Make sure they areswitched on. The DS.11 wireless network will be up and running immediately.If you are content with the default settings of the Access Points, you can stopright here. It is more likely however, that you want to assign different radiofrequencies to each Access Point, or impose some restrictions on the use ofyour wireless network.2. To be able to manage the Access Points via SNMP, every Access Point needs aunique IP address. If you provide a DHCP or BOOTP service on your LAN(and have sufficient free IP addresses available) this will be taken care ofautomatically. If not, refer to Section 4.1.2.2 for further information onassigning IP addresses.3. Use the BreezeNET Management utility to configure the Network Settings toreflect your situation.4. Select the radio channels of the Access Points according to your cell plan. SeeSection 4.1.4 for further information. Add descriptive information about eachAccess Point for later reference.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-27 User’s Guide4.3 More about CellsEach Access Point in the network forms the center of a cell, or BSS. The Cellsshould overlap slightly to guarantee seamless wireless connectivity everywhere.Neighboring Access Points should preferably send and receive on differentchannels for maximum throughput.Creating a cell plan for your site can be complicated, and is usually done by expertsemploying special measuring equipment.Furthermore, the radio channels you may use depend on both the capabilities of thePC-Cards you are deploying, as well as the regulations in your area.The following table provides specifications for the main regulatory domains:RegulatoryDomain4.8.1.1 Area PermissibleChannelsPredefined channelsFCC United States 1 – 11 1, 6, 11DOC Canada 1 – 11 1, 6, 11ETSI Europe exceptSpain andFrance1 – 13 1, 7, 13SPAIN Spain 10 10FRANCE France 10 10MKK Japan 14 14
Appendix A. Radio Signal PropagationUser's Manual A-28 BreezeNET DS.115. SOFTWARE DOWNLOAD PROCEDURE1. Set the unit's IP address, using the BreezeCOM Manager utility, and verify thatthe PC's IP address belongs to the same Subnet Mask as the unit.2. Ping the unit's IP address. Make sure that the Ping replies are being received.3. Use the TFTP utility on the PC:a) Syntax: TFTP [-i] destination host [PUT] source file [password]b) Example: TFTP -i 199.203.141.30 put ap1100.arm private Download will be completed within 1 minute, and a message of successful filetransfer will show on the screen.4. Click OK; the unit resets itself.5. Check the diagnostics LEDs, and use the BreezeNET Management utility tomake sure that the version number is correct.Note: Do not disconnect any cables or try to stop the process before downloading iscompleted.
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-29 User’s Guide6. TECHNICAL SPECIFICATIONS6.1 Supported Standards• Compliant with ETS 300 328 and ETS 300 826 (CE marked)• IEEE 802.11 standard for Wireless LAN• All major networking standards (including IP, IPX)6.2 EnvironmentalOperating temperature (ambient) 0°C to 55°C (32°F to 131°F)Storage temperature -5°C to 70°C (23°F to 158°F)Operating humidity 10% to 90% (non-condensing)Storage humidity 5% to 95% (non-condensing)6.3 Power specificationsDC power supply In 100 - 230 VAC 50/60 Hz 150 mAOut 9 VDC 1.3 AAP-DS.11 Access Point In 9 VDC 1 A
Appendix A. Radio Signal PropagationUser's Manual A-30 BreezeNET DS.116.4 Radio specificationsRange outdoors up to 15 milesTransmit power +18 dBm+2 dBm (Low power for use with high gain antenna)Frequency range 2.4-2.4835 Ghz, direct sequence spread spectrumNumber ofChannelsEurope:13 (3 non-overlapping)US: 11 (3 non-overlapping)France: 4 (1 non-overlapping)6.5 Specific featuresSupported bit rates • 11 Mbps• 5.5 Mbps• 2 Mbps• 1MbpsUtility Software DS11 BreezeNET Management utility6.6 Physical DimensionsSize 180 x 220 x 40 mmWeight
Appendix A. Radio Signal PropagationBreezeNET DS.11 Series A-31 User’s Guide

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