Display Of Traces In Overlay; Adding Traces In Overlay; Swapping Overlay Traces - Viavi 8100 V2 Series User Manual

3 Press the Load
4 Press View trace(s).
5 When loading is complete, the
the active trace (in green), the other traces being overlaid.

Display of traces in overlay

• 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
the other traces by vertical dashes.

Adding traces in overlay

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
page 99)
2 Press the F
ILE
added.
3 Press Load key.
4 Press the View Trace(s) or
When loading is complete, the new traces are displayed in overlay with those that
were defined as reference traces.
NOTE
If the number of files selected exceeds the display capacity, a message 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.

Swapping overlay 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 Press the Trace
key.
Results
button, and in the Explorer, select the files of the traces to be
Load Trace + Config.
key,
User Manual
Chapter 3 Reflectometry measurements
Advanced functions in Expert OTDR mode
screen appears: the first trace selected is
"Reference Trace function" on
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, and on
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