U
SER
M
ANUAL
750000992/16
7-5
MTS
e
Display of WDM results
from 50 to 400 GHz by steps of 5 GHz, or
from 0.160 to 8.000 nm by steps of 0.001nm.
- number of channels.
The <Between A and B> key allows to have only between the
cursors the grid with the defined spacing .
AUTO
The AUTO grid is lined up to the present channels whatever are
their interval. To get this grid the option «1st sweep» has to be
selected on the «
Channel Detection
» line. The Grid line and the
Auto option being selected, press the <Save Ref> key to take as
grid reference the location of the detected channels.
Alarms
The results whose standard deviation exceeds a chosen threshold may be
displayed in red in the table.
To define the alarm thresholds:
•
select the
Alarms
line and press the <Set Alarms> key. The alarms selection
menu is displayed.
•
Assign
Yes
to the chosen alarm: the direction arrow keys "<" and ">" allow
you to choose the corresponding threshold value.
According to the chosen statistic, three alarms are possible on:
Delta L (
or
F)
:
threshold from 0.01 to 4.01 nm (or from 1 to 500 GHz)
Delta P
:
threshold from 0.1 to 10.0 dB
Delta SNR
:
threshold from 0.1 to 10.0 dB
Display of WDM results
The results screen obtained by pressing the
RESULTS
button
,
presents zones from
the top to bottom displaying:
•
the file name (if the result is stored in the memory).
•
characteristics specific to WDM test: module name, resolution used (Res),
number of acquisitions used for the statitics (Acq), signal threshold (Th),
distance chosen for the S<->N ratio, fiber number (N:), date and time of
acquisition.
•
the trace (see "Trace" on page 7-6).
•
the results associated with the A and B cursors of the trace, the type of
channels displayed, the composite power and the total power.
•
the results table (see "Table" on page 7-9).
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