U
SER
M
ANUAL
750000992/16
5-5
MTS
e
OTDR Test SET-UP
Results on trace
Choose to display:
None:
the trace only
All
: the trace with results and markers
Graphics only
: the trace with markers only.
Factory default value:
All.
Remarks in table
Selection of the display of notes in the table (see "Notes in
table" on page 5-19)
None
: no additional display
Note
: display of notes entered by the user
Uncertainties
: displaying of notes entered by the user and
confidence indicators for the result measurements.
Factory default value:
None
.
To call the factory default values of the Results parameters, press the <Factory
Default> softkey.
Selecting measurement result display parameters for both end measurement
In the case of both end measurements (see "OTDR TEST SETUP window" on
page 5-2 :
•
some parameters are not available. They are replaced with:
Dist. Spacing Th.
Selection of the distance spacing threshold between two
markers (one on the E-O trace, the other on the O-E trace).
If their spacing exceeds the threshold, the markers are
considered as referring to separate events. This threshold is
expressed in percentage of the length of the section before
the event.
Splice Alarm Th.
Selection of the splice alarm threshold. If the average loss
results exceeds this threshold, it will be displayed in red in
the table of results.
•
The parameter
Launch Cable
is replaced by the two parameters
Launch
Cable O-> E
and
Launch Cable E -> O
allowing to choose a marker End of
fiber for each direction.
Selecting fiber parameters
You can choose the following fiber parameters from the
Fiber Parameters
menu
of the
OTDR TEST SETUP
window:
Wavelength
:
Choose the type of fiber wavelength for which the fiber
parameters will be defined from the following values:,
850 nm MM, 1300 nm MM, 1310 nm SM, 1550 nm SM and
1625 nm SM
Index
:
Choose the group index N of the total fiber. Selecting a
given index will modify the A_B distance.
- either select the index from 1.30000 to 1.70000 using the
"
<
" and "
>
" arrows keys.
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