Exfo FTB-5700 Single Ended Dispersion Analyzer for FTB- Manuel d'utilisateur télécharger pdf (Page 77)

Troubleshooting

Single-Ended Dispersion Analyzer 71

Solving Common Problems

There are not enough

valid points to compute

the model fit due to

detector saturation

conditions in the

selected range.

³ Fiber end is too

reflective.

³ Unsuitable FUT.

The FUT must not

cut the 1550 nm

wavelength.

³ If you have put a reflective

termination at the end of the

fiber, remove it.

There are not enough

valid points to compute

the model fit due to a

combination of detector

saturation and low

power conditions in the

selected range.

³ Fiber end is too

reflective.

³ Unsuitable selected

wavelength range

for the measured

FUT (out of the FUT

bandwidth).

³ Unsuitable FUT.

The FUT must not

cut the 1550 nm

wavelength.

³ If you have put a reflective

termination at the end of the

fiber, remove it.

³ Select a wavelength range that

suits the FUT and the instrument

range. You can set the

wavelength range in the

Acquisition tab of the Setup

window.

Message Possible cause Solution

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Exfo FTB-5700 Single Ended Dispersion Analyzer for FTB- Manuel d'utilisateur Page 77

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