Radwin 2000 C PLUS - Figure 10-8 Cascading Three

RADWIN2000CPlusUserManual Release3.5.70 10‐6
UsingMorethanOneHSSUnit Chapter10
4. ToaddafurtherHSSunit:ConnectthenextavailableSYNCportfromthesecond
HSSunitindescendingorder(SYNC5inFigure 10‐7)toSYNC1ofthethirdHSS
unit.
5. ODUsareconnectedtothethirdHSSunitfromSYNC2asshowninFigure 10‐8,in
ascendingorder:
Figure10‐8:CascadingthreeHSSunits
6. IffurtherODUsarerequired,observetheconventionthatadditionaleven
numberedunitsarepopulatedindescending orderfromSYNC9andodd
numberedHSSunitsarepopulatedinascendingorderfromSYNC2.
Condition2:TotalHSSCableLength
ThetotalpathoftheHSSsyncpulsemustnotexceed300m.Thisappliesnomatterhowmany
HSSunitsareused.Toillustratethemethodforcalculatingthesyncpulsepathlengthwe
showthreeexamples.Forourpurpose,let:
LmndenotethelengthoftheODU‐HSSunitcableatSYNCnonHSSunitm
HmbethelengthofthecablejoiningHSSunitmtoHSSunitm+1
OneHSSunitwithfivecollocatedODUs
TwocascadedHSSunitsasshowninFigure 10‐7
Note
IfanODUisdisconnectedfromanHSSunit,thenallremainingODUsmust
bemovedupordowntomaintaintheconnectivity.
PathLength L
11
2 L
12
2 L
13
+ 2 L
14
L
15
+++=
PathLength L
11
2 L
12
2 L
13
2 L
14
+
2
+
L
15

+
H
1
2 L
29
2+ L
28
2+ L
27
 L
26
+
+
++
=