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Chapter 5 Launching a reflectometry test and displaying results
Advanced functions in OTDR Expert mode
Overlaying several
traces stored in
memory
Display of traces in
overlay
Adding traces in
overlay
Swapping overlay
traces
62
To display up to 8 traces from the memory, deleting the current trace(s)
already loaded:
F
1
ILE
Press the
2
Select the files of the traces for display.
3
Load
Press the
4
Press View trace(s).
5
When loading is complete, the
trace selected is the active trace (in green), the other traces being
overlaid.
–
The traces are shown in different colors (the active trace is green).
–
Their serial numbers are repeated at the top of the screen.
–
The OTDR markers are referenced on the active trace by the
symbol
, and on the other traces by vertical dashes.
With one or more traces already displayed, to add further traces to the
display (the number of traces displayed cannot exceed 8):
1
Define at least one trace as reference (see
tion" on page
63)
F
2
ILE
Press the
traces to be added.
3
Press Load key.
4
View Trace(s) or
Press the
When loading is complete, the new traces are displayed in overlay
with those that were defined as reference traces
Trace function" on page
NOTE
If the number of files selected exceeds the display capacity, a mes-
sage gives warning that loading will be incomplete: only the trace or
traces selected first will be displayed, up to the permitted limit of 8
traces.
Measurements can only be made on the active trace and not on overlaid
traces. To make measurements on a trace in overlay, it must first be
swapped with the active trace.
1
Trace
Press the
User Manual
770000102/08
button.
key.
Results
button, and in the Explorer , select the files of the
Load Trace + Config.
63)
key,
screen appears: the first
"Reference Trace func-
(see."Reference
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