EXFO FTB-5800 Chromatic Dispersion Analyzer for FTB-400 - Manual (Page 24)

Setting Up Your Chromatic Dispersion Analyzer
18 FTB-5800
Specifying the Fiber Under Test
To specify the fiber under test:
In the Parameters tab, undr Fiber Information, set the fiber parameters.
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In the Fiber Type list, select the appropriate value.
Note: If you do not know the fiber type, select “Unknown Fiber Type”. If your fiber
is made of more than one type of fiber, either enter the dominant fiber type
or select “Unknown Fiber Type”.
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The application will designate a default fit according to the fiber type; it
will be marked by an asterisk (*) to indicate that it is a default value. If
necessary, in the RGD Data Fit list, select the desired data fit.
Note: The RGD data fit you select here will be applied to the relative group delay
for the next acquisition. However, once in the Results Graph tab, it is
possible to interpret your results by selecting another fit.
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If you know the fiber length, select the Known Fiber Length box and
enter the appropriate fiber length in the corresponding box. By default,
the value is in kilometers.