Radwin 2000 D+ - Figure 10-3 Hss Sync Signal

RADWIN2000D+UserManual Release3.6.00 10‐3
UsingaSingleHSSUnit Chapter10
10.2.2UsingaSingleHSSUnit
Figure10‐2:HSSWiringschematic
Thewiring,asshowninFigure 10‐2isselfexplanatory.TheSyncsignalpathis lessself
evident.IfwesetODU1(onSYNC1)toHSSMaster,thentheSyncsignalpathisasshownin
Figure 10‐3.ThesignaltravelsfromODU1toSYNC1,fromSYNC1toSYNC2,fromSYNC2to
ODU2andbackagain.ThebackandforthpathsrepeatforthesecondtofourthODU,from
lefttoright.ThesignalexitstheHSSunitatSYNC5andterminatesinODU5.
ThechoiceoftheODUonSYNC1asHSSmasterisnotmandatory,butisgoodpractice.Iffor
exampleweweretouseODU3asHSSmaster,theSyncsignalpathwouldbeODU3toSYNC
3,thenleftandright toSYNC2andSYNC4.ItwouldthenpropagatetoODUs2and4,
terminatingatbothODUs1and5.
Figure10‐3:HSSsyncsignalpathwithODU1asHSSMaster
10.2.3UsingMorethanOneHSSUnit
Inalargecollocationsite,severalHSSunitsmaybecascaded(daisy‐chained)subjecttothe
followingconditions: