FinMDeploymentGuide Release4.5.10 2‐1
Chapter2:SiteInstallation
2.1ScopeofThisChapter
ThischapterdescribeshowtoinstalltheequipmentfortheTransportationFiberinMotion
solution.
2.2Wayside
TheFiberinMotionsolutionusesmultipleantennastoenableMIMOandDiversitymodes.
Thesolutionreliesonantennaspacing,aswellasdualpolarization/dualslantedantennasto
differentiatetheradiostreams.
2.2.1Overview
GeneralMountingArrangement
TheTBScanbemountedonapoleorawall,togetherwithitsantennas,LPUsandPoEdevice.
Toenablebett erMIMOconditions,theantennasshouldbedividedbetweenverticaland
horizontalpolarizations.Figure 2‐1showsaschematicviewwiththesepolarizations.
• Placethetower/TBSatthelocationdeterminedbythesitesurvey.
• Makesurethereissufficientline‐of‐sighttowardsthetracksegmenttheantennas
willcover
• Makesurethattherearenoobstaclesdirectlyinfrontoftheantennas
• Thelowestantennamustbehigherthanthehighestrailcarontheline