RADWIN2000+SeriesUserManual Release4.2.40 10‐5
ODU/HSSUnitConnectionPinout
Figure10‐5:CascadingthreeHSSunits
6. IffurtherODUsarerequired,observetheconventionthatadditionaleven
numberedunitsarepopulatedindescendingorderfromSYNC9andodd
numberedHSSunitsarepopulatedinascendingorderfromSYNC2.
Condition2:TotalHSSCableLength
ThetotalpathoftheHSSsyncpulsemustnotex ceed300m.Thisappliesnomatterhowmany
HSSunitsareused.Toillustratethemethodforcalculatingthesyncpulsepathlengthwe
showthreeexamples.Forourpurpose,let:
LmndenotethelengthoftheODU‐HSSunitcableatSY
NCnonHSSunitm
HmbethelengthofthecablejoiningHSSunitmtoHSSunitm+1
OneHSSunitwithfivecollocatedODUs
TwocascadedHSSunitsasshowninFigure 10‐4
ThreecascadedHSSunitsasshowninFigure 10‐5
10.3ODU/HSSUnitConnectionPinout
SeeTable D‐3.
IfanODUisdisconnectedfromanHSSunit,thenallremainingODUsmust
bemovedupordowninordertomaintaintheconnectivity.
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
+
+
++
=
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
2 L
26
+
H
2
2 L
32
2 L
33
2 L
34
L
35
+++
+
++ +
+
=