Enterasys-networks ROAMABOUT RBT-1602 Manuel d'utilisateur télécharger pdf (Page 20)

Determining the Antenna Locations

1-8 Site Preparation

Additional Location Requirements

ThissectiondescribesotherrequirementstomeetbeforeinstallingtheRoamAboutoutdoor

antennas.

• LightningProtection

Alightningrodmustbeplacedclosetotheantennamastorwallbracket.Thisisrequiredto

protecttheantennafromdirectlightningstrikes.

•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wirelessdeviceandthe

LightningProtectormustbeconnectedtothesameearthgroundusingseparategrounds.The

antennaandthemountingstructurerequireseparategroundstothesameearthground,using

anequipotentialbonding

conductor.Checkwithacertifiedantennainstaller,orlocal

electrician,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.

• AntennaHeight

Ifyouaremountingtheantennaon

aroof,itmustbeatleast1.5meters(5feet)abovetheroof

line.

Ifyouaremountingthedirectionalantennatoawallofabuilding,itmustbehighenoughto

achieveaclearlineofsight.Mountinganomni‐directionalantennatothesideofabuilding



cancausesignalreflectionandreducedistance.

•APplacement

TheAPshouldbelocatedindoors,andconnectedtotheoutdoorantennausingtheshortest

cablepossibletoreducethelossofthecable.

Note: The installer is responsible for local building codes.

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Enterasys-networks ROAMABOUT RBT-1602 Manuel d'utilisateur Page 20