Origin And End Traces - Viavi 8100 V2 Series User Manual

Chapter 6 Bi-directional OTDR
Trace display functions
NOTE
The remote trace is reversed in order to superpose both traces in a «butterfly
fashion» (see
NOTE
You may only use this key to change page when the measurement is com-
pleted. When the measurement is completed, the Curve page correspond-
ing to the local MTS/T-BERD is automatically displayed (Origin if the
direction of the link has been defined O->E, End if the direction of the link
has been defined E->O).

Origin and End traces

Bi-directional measurement may be performed using up to 4 different wavelengths. We
can therefore analyze successively up to 4 couples of Origin and End traces.
In order to go from one couple to another, activate the
Wavelength, and move from one trace to another using arrows.
These traces are OTDR traces. All regular OTDR functions are proposed to modify the
display (Zoom/Shift, Cursors, Evt, Curve/Table, Full scale,...).
Just like in OTDR mode, the user will be able to work on these traces in order to analyze
the fiber: by moving events, consulting the selected trace associated result table,
asking for an auto-measurement, adding markers, and doing manual measure-
ments.
See "Results table" on page
ments" on page
When the user comes back to
Origin curve or on the End curve are now taken in account. The OEO mea-
surement is performed again.
1.In our example, St-Etienne corresponds to the extremity connected to the local
unit, Lyon corresponds to the extremity connected to the remote unit.
206
Figure 118 on page
69, "Addition of events" on page 85
90.
User Manual
205).
Wavelength/Evt
OEO trace
, all modifications done on either the
78000010220 Rev. 024
key, select
and "Manual measure-