Radwin 2000 C PLUS - Page 143

RADWIN2000CPlusUserManual Release3.5.70 10‐4
UsingaSingleHSSUnit Chapter10
 ToconnectanODUtoanHSSunit:
1.UnscrewtheprotectivecoverfromtheportmarkedSYNC1.
2.ConnecttheRJ‐45connectorfromoneendofthepreparedCAT‐5ecabletoSYNC1.
3.ConnecttheotherendoftheCAT‐5ecabletotheODUconnectorlabeledSYNC.
4.TightentheprotectivesealthatisonthepreparedcableovertheRJ‐45connector.
5.RepeatforallODUsthataretobecollocatedatthehubsite.ThenextODUtobe
connectedisinsertedinSYNC1,SYNC2,followedbySYNC3andsoon.
UsingaSingleHSSUnit
Figure10‐5:HSSWiringschematic
Thewiring,asshowninFigure 10‐5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 10‐6.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.