Splice Measurements - JDS Uniphase 4100 User Manual

Fig. 34
Splice
There are two methods of carrying out manual measurements of splices
on the trace: the two-cursor method and the five-cursor method.
measurements
The five-cursor method is the more accurate, as it takes into account the
difference of level between the slope before the splice and the slope after
the splice. This method should be used whenever possible.
If very close events have created a dead zone preventing the measure-
ment of slope by the five-cursor method, it is possible to use the two-
cursor method. This considers the difference in level between the
cursors.
Before performing one of these measurements, define in the Setup
menu the splice detection threshold.
Two points method
To perform a splice measurement by the "two-points" method, display the
Results
1
2
3
User Manual
Chapter 5 Launching a reflectometry test and displaying results
Reflectance measurement
page, then:
Place cursor A exactly on the fault, then place cursor B after the
splice that you wish to define.
Advanced
Press the
2 Pt Loss.
the function
Press validation key (
The splice marker is placed at the point defined by the first (left-
hand) cursor and the result is displayed on the screen. If the fault is
reflective, the reflectance value is also measured and displayed.
These results are added to the table of results.
770000102/08
Advanced functions in OTDR Expert mode
Manual Measurement, then select
key, then
E
NTER
or ).
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