Condition 2: Total Hss Cable Length; Hss Error Notification; Figure 10-8 Cascading Three - Radwin WinLink 1000 User Manual
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HSS Error Notification
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.
If an ODU is disconnected from an HSS unit, then all remaining ODUs must
be moved up or down to maintain the connectivity.
Note
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:
L
denote the length of the ODU-HSS unit cable at SYNC n on HSS unit m
mn
H
be the length of the cable joining HSS unit m to HSS unit m+1
m
One HSS unit with five collocated ODUs
PathLength
=
L
11
Two cascaded HSS units as shown in
PathLength
=
L
11
2
L
+
H
+
2
L
15
1
Three cascaded HSS units as shown in
PathLength
=
L
11
2
L
+
H
+
2
L
15
1
H
+
2
L
+
2
L
2
32
HSS Error Notification
In the event of an HSS installation fault, the ODU will sound a beep pattern according to the
following chart, also printed on the ODU product label:
WinLink 1000 User Manual
+
2
L
+
2
L
+
12
13
+
2
L
+
2
L
+
12
13
+
2
L
+
2
L
29
28
27
+
2
L
+
2
L
+
12
13
+
2
L
+
2
L
29
28
27
+
2
L
+
L
33
34
35
Release 1.9.40
2
L
+
L
14
15
Figure 10-7
2
L
+
14
+
L
26
Figure 10-8
2
L
+
14
+
2
L
+
26
Chapter 10
10-6
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