Radwin 2000 - Single

RADWIN2000UserManual Release2.8.30 4‐9
Accessories
Accessories
HubSiteSynchronizat ion(HSS)Unit
TheHSSunitsynchronizescollocatedODUstopreventselfinterference.Itisparticularly
usefulatamulti‐sectorbasestationemployingseveralODUs.
AsingleHSSunitsupportsuptotencollocatedODUs.Inadditiontoeachunitbeing
connectedtoitsPoEdevice,thecollocatedunithasanadditionalcablethatisconnectedto
theHSSUnit.TheHSSUnitisacompact,weatherproof(IP67)connectorboxthatisinstalled 
onthesamemastastheODUs.AllcollocatedunitsconnecttothisboxusinganHSScable.
Cablesinpreparedlengthsareavailableforpurchase.
TheHSSunitissuppliedwithtenprotectivecovers;anyportnotinusemustbeclosedwitha
protectivecover.
Figure4‐15:HSSInterconnectionUnit
SeeChapter11andChapter12forfurther detailsabouttheuseofHSS.
RADWINGSU
TheGPS‐basedsynchronizationunit(GSU)isdesignedtohandleinter‐siteinterferences
underlarge‐scaledeploymentscenarios.
TheRADWINGSUisanoutdoorunitconsistingofGPSantennaandaPoEdevice.
TheRADWINGSUisconnectedtotheHSSUnitusingastandardHSScable.Itsynchronizesthe
transmissiontimingofmultipleHub‐Sitestothe sameclocksourcethuseliminatingself
inte rference(seeChapter14).