User's Manual Part 1

Overview
InterReach Fusion Wideband Installation, Operation, and Reference Manual Page 63
D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013 © 2013 TE Connectivity Ltd.
4 Determinethein‐buildingenvironment;referto“EstimatingRFCov er age”onpage82.
• Determinewhichareasofthebuildingrequi
recoverage(entirebuilding,publicareas,
parkinglevels,andsoon.)
• Ob
tainfloorplanstodeterminefloorspaceofbuildingandthewalllayoutoftheproposed
areastobecovered.Floorplansarealsousefulwhenyouareselectingantennalocations.
• Ifpossib
le,determinethebuilding’sconstructionmaterials(sheetrock,metal,concrete,
andsoon.)
• Dete
rminethetypeofenvironment:
– Openlayout(forexample,aconventioncenter)
– De
nse,closewalls(forexample,ahospital)
– Mixe
duse(forexample,anofficebuildingwithhardwallofficesandcubicles)
5 Determinetheappropriateestimatedpathlossslopethatcorrespondstoth
etypeof
buildinganditslayout,andestimatethecoveragedistanceforeachRAU;referto
“EstimatingRFCo
verage”onpage82.
Usethepathlossslope(PLS),whichgivesavaluetotheRFpropagation
characteristicswithin
thebuilding,toconverttheRFlinkbudgetintoanestimateofthecoveragedistanceper
antenna.ThishelpsestablishthequantitiesofFusionWidebandequipmentyouneed.The
actualpathlossslopethatcorrespondstothespecificRFenvironmentinsidethebuildingcan
alsobedeterminedempiricallybyperforminganRFsite‐surveyofthebuilding.Thisinvolves
transmittingacalibratedtoneforafixedantennaandmakingmeasurementswithamobile
antennathroughouttheareasurroundingthetransmitter.
6 Determinetheitemsreq
uiredtoconnecttothebasestation;referto“Connectinga
MainHubtoaBaseSt
ation”onpage101.
OnceyouknowthequantitiesofFusion
Widebandequipmenttobeused,youcandetermine
theaccessories(combiners/dividers,surgesuppressors,repeaters,attenuators,circulators,
andsoon.)requiredtoconnectthesystemtothebasestation.
Theindividualelementsthatmustbe
consideredindesigningaFusionWidebandsolutionare
explainedinthefollowingsections.
NOTE: Access the TE Customer Portal for on‐line dimensioning and design tools; see “TE Customer
Portal”onpa
ge3.