D-Link user manual Appendix A. DWL-1800 FAQ, General

Page 54

APPENDIX A. DWL-1800 FAQ

General

Can the DWL-1800R indoor unit be placed outdoors?

It is not recommended. The DWL-1800 indoor units are specified to operate between 0?C and 40?C and is not weather proof so it is best to mount the DWL-1800R indoors or in a protective cabinet.

Do DWL-1800 units support 802.1Q VLAN?

Yes, but the support is limited to transparent operation. This means that the DWL-1800 does not take any action on 802.1Q frames, but will transparently pass them within a VLAN network.

What is the maximum number of networked PCs the DWL-1800B/ DWL-1800R can learn?

1024 network MAC addresses can be learned by the DWL-1800B/DWL-1800R from the LAN side.

Can the DWL-1800B/DWL-1800R be used for multi-point as well as point-to-point links?

Yes. The DWL-1800B can support multiple DWL-1800R units creating a point-to-multi-point network.

How many DWL-1800R units can one DWL-1800B support?

The maximum number of associations is 128.

What is the practical limit to the number of DWL-1800R units per DWL-1800B? And, what performance can I expect for a multi-point link?

This depends upon average throughput expectations. All clients would have the maximum throughput available for burst traffic, however the overall average would depend on the utilization of the network. For example, in a heavily utilized network needing about 350Kbps to 500kbps average net throughput per site, 9 to 12 DWL-1800R’s would be the limit. For a moderately utilized network needing about 175Kbps to 258Kbps average, 18 to 24 DWL-1800R’s should be used, and for a lightly used network needing 32Kbps to 48Kbps average net throughput per site could use up to 128 DWL-1800R’s.

What is the range of the DWL-1800B/ DWL-1800R Bridges?

49

Image 54
Contents LinkAirPremier Table of Contents Troubleshooting Guide Table of Figures DWL-1800 Point-to-Multipoint ApplicationTable of Tables System Description Using this GuideIntroduction GeneralDWL-1800B BU Wireless Base Unit Link AirPremier DWL-1800 Functional DescriptionDWL-1800R RB Wireless Bridge Link AirPremier DWL-1800 Compatibility and StandardsInstallation Installation OverviewPacking List Outdoor Installation Considerations General Installation Scheme Pole MountingPath of Clearest Propagation Collocating DWL-1800 Outdoor UnitsSite Selection Factors Physical ObstaclesPath Loss Rooftop InstallationAntennas for Outdoor Applications Point-to-PointAntenna Polarization Using Outdoor Range TablesPrecautions Cell Size/Link DistanceInstalling the Outdoor Unit Compliance with Radio RegulationsHoles/Grooves/Screw Holes Connecting the Ground and Antenna Cables Connecting the Indoor-to-Outdoor CableInstalling the Indoor Unit Brown Phase ~ Blue Neutral Yellow/green Grounding Configuring Parameters Antenna AlignmentPage Verifying Correct Operation Verifying Correct Operation of the Indoor UnitName Description Functionality Verifying Correct Operation of the Outdoor Unit What to do if the Self Test failsD-LINK Airpremier DWL-1800 Configuration Utility Installing and Running the Configuration Utility Configuration Utility ModesUnit Configuration Mode Control Window SectionTabs Section Control Window Selecting UnitsSetting the Snmp Community String Set IP Dialog BoxApplication Control Buttons Configuration Utility Tabs Station Status TabIP Parameters Tab IP Parameters Tab Snmp Parameters Tab Snmp Parameters TabCounters Tab Counters Tab BU/DWL-1800B Units?? Tx Counters ?? Rx Counters?? Link Counters ?? Resetting Counters Wlan Parameters TabWlan Parameters Tab RB/DWL-1800R Highest ChannelFrance Canada Channel FrequencyStation Control Tab Station Control TabSecurity Tab Security TabAdvanced Tab Advanced TabPage Firmware Upgrade Mode Trap Monitor TabTo upgrade firmware Firmware Upgrade Mode dialog boxFirmware Upgrade Process Advanced Tftp Settings Advanced Tftp Setup dialog boxMultiple Unit Configuration Mode Multiple Configuration Mode dialog boxResetting the Snmp Community Strings Reloading Factory Default SettingsTo reset the unit to the factory defaults System Troubleshooting Troubleshooting GuideProblem Possible Cause Corrective Action Indication Supported Standards Technical SpecificationsConfiguration and Management RadioOutdoor Unit-to-Indoor Unit Communication RangeSecurity InterfacesElectrical Mechanical Dimensions EnvironmentalStandards Compliance, General Appendix A. DWL-1800 FAQ GeneralDoes the DWL-1800B supports 802.1d spanning tree protocol? Collocation What is the throughput of the D-Link Air Premier DWL-1800? PerformanceCan the DWL-1800B/ DWL-1800R firmware be upgraded? FirmwareConfiguration Management What management options are available for the DWL-1800?Ethernet Connector Pin Assignments Appendix B. Preparing the Indoor to Outdoor CableAppendix C. Radio Signal Propagation IntroductionRF Terms and Definitions RF Power Level AttenuationFree Space Loss Antenna Characteristics Isotropic AntennaSystem Characteristics Link ParametersSignal Fading Link Budget CalculationLine of Sight Concept Clear Line of SightFresnel Zone Clear of Obstacles FCC Warning Avertissement AUX Utilisateurs Product Type Warranty Period What You Must Do For Warranty Service Trademarks Offices Registration Card Print, type or use block letters