Cabletron Systems 9033073 manual Determining Range & Clearance

Page 10

Table of Contents

	Overview of the Outdoor Installation		2-10
	•	Antenna Placement	2-11
	•	Antenna Mast/Wall Bracket	2-13
	•	Grounding System	2-15
	•	RoamAbout Antennas	2-15
	•	Antenna Alignment	2-17
	•	Antenna Cable Routing	2-18
	• Before Climbing the Roof...		2-19

	Determining Range & Clearance
3	Determining Range & Clearance		3-1
	The Fresnel Zone		3-1
	Other Considerations		3-3

	Installing the Antenna
4	Installing the Antenna		4-1
	Planning the Antenna Installation		4-1
	•	Safety Precautions	4-2
	•	Installation Overview	4-4
	Mounting the Antenna		4-5
	• Mounting the Directional Antenna		4-5
	• Mounting the Omni-directional Antenna		4-8
	Connecting the Antenna Cable		4-10
	• Sealing the Cable Connectors		4-12

viii	Outdoor Antenna Installation Guide

Image 10

Contents RoamAbout 802.11 Outdoor Antenna Installation Guide Page RoamAbout 802.11 Outdoor Antenna Installation Guide Page Regulatory Information CanadaOutdoor Antenna Installation Guide Getting Help Your email addressPage Table of Contents Determining Range & Clearance RoamAbout 14-dBi Directional Antenna Page About This Guide IntroductionWho Should Use This Guide Organization of this Guide Installation GuidelinesInstalling the Antenna Introduction This ChapterAppendix C The Antenna Cabling System Appendix D Calculating Range & ClearanceRoamAbout Outdoor Kit Introduction Hardware Specifications Installing a RoamAbout Access PointConfiguration and Management Finding Additional InformationAdditional files on your diskettes Other Sources of InformationPage Installation Guidelines Site PrerequisitesPre-Installation Checklist Overview of the Indoor InstallationIndoor Installation Overview Selecting the Right RoamAbout PC CardRoamAbout PC Card Identification Installation Guidelines Placement of the RoamAbout Access Point Installation Guidelines Placement of the Lightning Protector Antenna Cable RouteInstallation Guidelines Overview of the Outdoor Installation Antenna Mast/Wall Bracket not included in kitAntenna Placement Potential Obstacles for a Directional Antenna Antenna Mast/Wall Bracket Tripod MountWall Side Mount Antenna Mast RequirementsGrounding System RoamAbout AntennasAntenna Polarization AP Manager Point-to-Point Diagnostics Screen Antenna AlignmentAntenna Cable Routing Before Climbing the Roof Page Determining Range Clearance Fresnel ZoneDetermining Range & Clearance Other Considerations Page Installing the Antenna Planning the Antenna InstallationSafety Precautions Electrical Hazard WarningsElectrical Hazard Warnings Installation Overview Mounting the Directional Antenna Mounting the AntennaMounting on a Mast Prevent damage to the plastic antenna mounting base Mounting on a Flat Surface Mounting the Omni-directional Antenna Mounting the 14-dBi Antenna to a WallMounting the Omni-Directional Antenna to a Mast Connecting the Antenna Cable Installing the Antenna Sealing the Cable Connectors RoamAbout 14-dBi Directional Antenna Contents of the Antenna BoxGeneral Description Table A-1 Specifications 14-dBi Directional Antenna RoamAbout 14-dBi Directional AntennaRoamAbout 7-dBi Omni Directional Antenna RoamAbout 7-dBi Omni-Directional Antenna Antenna Cabling System Selecting the Correct Connector TypeOutdoor Cabling Components Table C-1 Selecting the Correct N-Type Connector Antenna Cabling SystemOutdoor Cabling Components RoamAbout Cable Assembly Table C-2 Cable Assembly SpecificationsTable C-3 Lightning Protector Specifications RoamAbout Lightning ProtectorInstallation Figure C-1 Lightning Protector InstallationRoutine Maintenance Table C-4 Cable Specifications for the 6m 20 ft Antenna Low-Loss Antenna CableTable C-5 Cable Specifications for the 15m 50 ft Antenna Table C-6 Cable Specifications for the 22m 75 ft AntennaPage Calculating Range Clearance IntroductionDynamic Range Budget Table D-1 Dynamic Range FCC MBit/s Omni-Directional 7-dBiTable D-2 Dynamic Range ETSI. France & Japan Link speed versus Range Determine Line-of-Sight ClearanceTable D-3 Minimum Clearance for Maximum Range Dynamic Range Minimum Clearance Maximum RangeCalculating Range & Clearance Determine Typical Range Table D-4 Actual Clearance and Typical Range Which Antenna do You Need