Installation Guide

TVWhiteSpaceInstallationGuide Release1.0 1‐3
MethodofWork Introduction
1.2.2MethodofWork
TheradiounitscommunicatewiththeserviceproviderandusersthroughPoEdevices.The
communicationprotocolforboththeserviceproviderandtheusersisEthernet.
SeeFigure 1‐6,RADWINTVWhiteSpaceConnectionScheme:
• Foreachinstallation,permissionmustbegr antedfromlocalregulatoryauthoritiesfor
thespecificworkingfrequenciesforboththebasestationandthesubscriberunit.
• APoEdeviceisconnectedtopowerandthecommunicationsnetwork:
• UsingCAT‐5ecables,theradiounitsarec
onnectedtopowerandthecommunications
networkviaaPower‐over‐Ethernet(PoE)device.
• TheradiounitsandPoEdevicesarealsoconnectedtoground.
• Theradioscommunicatewitheachotherviatheairinterface.
Figure1‐4:SubscriberUnit
Figure1‐5:SubscriberUnitradioexternaldimensions
Forsimplicity,LightningProtectionUnits(LPU)arenotshowninFigure 1‐6,but
thesearerecommended.SeeMountingtheLightningProtectionUnitsonpage2‐
14fordirectionsonhowtoinstalltheLPUs.
325mm
114mm
325mm
Externalconnection
toPoE
FOR REGULATORY USES ONLY