Enterasys Networks 9033348-02 manual Grounding System, Lightning Protector Installation

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Grounding System

Grounding System

Direct earth grounding of the antenna and the Lightning Protector is necessary to protect the installation from lightning and the build-up of static electricity.

The grounding system must satisfy the following requirements:

The antenna mast, RoamAbout Access Point, and RoamAbout Lightning Protector must be connected to the same ground.

The antenna and the mounting structure require a separate earth ground connection. Check with a certified antenna installer to make sure the antenna is properly grounded.

Ensure that the cable between the antenna and Lightning Protector is at least 0.9 meters (3 feet) away from high-voltage or high-current cable.

A good electrical connection must be made to one or more ground rods, using at least a 10AWG ground wire and noncorrosive hardware.

The grounding system must comply with electrical codes and safety standards that apply in your locality.

Have a qualified electrician verify that your RoamAbout outdoor installation is properly grounded.

CAUTION: A properly installed safety grounding system is necessary to protect your RoamAbout outdoor installation from lightning strikes and static electricity build-up.

Lightning Protector Installation

Lightning protection is designed to protect people, property and equipment by providing a path to the ground whenever lightning strikes your antenna installation. The RoamAbout Lightning Protector is an indispensable part of such a grounding system to protect your electronic equipment from transients and/or electrostatic discharges at the antenna.

For optimal protection, the location of the RoamAbout Lightning Protector:

Must be as close as possible to the point where the antenna cable enters the building.

Allow for easy access to the Lightning Protector so that the Gas Discharge Tube (GDT) in the Lightning Protector can be replaced as necessary.

Provide a connection to the same grounding system as the RoamAbout Access Point and the antenna mast as described in the “Verify Component Connector Polarity” section on page 3-2.

3-4 Antenna Installation

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Contents Outdoor Antenna Site Preparation and Installation Guide Page Page Regulatory Information Electrical Hazard Warnings Page Contents Antenna Installation Preface Intended AudienceAssociated Documents Component Information LocationGetting Help Address TechWriting@enterasys.comDocument Conventions Icon MeaningChoosing a Wireless Network Configuration Chapter Site PreparationDetermining the Antenna Locations Maximum Distances Between AntennasDistances and Line of Sight Clearance FCC RoamAbout PC Card Variations Line of SightFresnel Zone and Line of Sight Clearance Potential Obstacles to Line of Sight not to scale Other Factors That Can Reduce Antenna Range Large Reflecting SurfacesInstaller is responsible for local building codes Other RequirementsAntenna Options RoamAbout 5 dBi Vehicle-Mount AntennaRoamAbout 14 dBi Directional Antenna KITExample Outdoor Yagi Antenna Configuration RoamAbout 7 dBi Omni-Directional Antenna Antenna KITExample Omni-Directional Antenna Configuration Mounting Requirements Contacting an Antenna Installation CompanyLightning Protection Line of SightInstallation Requirements Page Chapter Access Point Placement Configuration Determining the Location of the Access PointOverview of Connecting Cables to the Access Point Access Point 2000 Installation OverviewOverview of Connecting Cables to the Access Point Overview of the Access Point Configuration Settings from the RoamAbout Access Point Installation MenuRoamAbout Access Point Manager Overview of the Access Point Configuration Chapter Antenna Installation Installation Overview Verify Component Connector PolaritySelecting the Correct N-Type Connector Lightning Protector Installation Grounding SystemLightning Protector Installation Mounting the Antenna Antenna Polarization Mounting the Directional Antenna Antenna Cables section onMounting the 14 dBi Antenna to a Mast Mounting the Omni-Directional Antenna Mounting the Omni-Directional Antenna to a Mast Mounting the Vehicle-Mount Antenna Mounting the Vehicle-Mount AntennaConnecting the Antenna Cables Antenna Cable RouteConnecting the Cables Optimizing RoamAbout Outdoor Antenna Placement Routine Maintenance Table A-1 14 dBi Directional Antenna Specifications RoamAbout 14 dBi Directional AntennaRoamAbout 14 dBi Directional Antenna Table A-2 7 dBi Omni-Directional Antenna Specifications RoamAbout 7 dBi Omni-Directional AntennaTable A-3 Vehicle-Mount Antenna Specifications Vehicle-Mount AntennaTable A-4 Pigtail Connection Specifications RoamAbout Pigtail ConnectionMechanical Specifications Low-Loss Antenna CableConnectors Table A-8 Lightning Protector Specifications RoamAbout Lightning Protector