Exfo FTB-5600 Distributed PMD Analyzer Bedienungsanleitung PDF herunterladen (Seite 133)

Optimizing Measurements

Distributed PMD Analyzer 127

Use an Optimized Number of Averagings

The number of averagings is the light pulse averaging used to obtain each

individual P-OTDR trace. If you want to have better measurable dynamics,

you should select a higher number of averagings. Remember however that

this will result in a longer acquisition time.

Should a windy environment or any other reason that causes SOPs to vary

over a time period when acquiring each individual P-OTDR trace on an

FUT, using a lower number of averagings may be helpful in improving the

measurement. However, you will obtain less dynamics.

Note: You should avoid taking the measurement if the light SOP from the FUT

varies largely in a time period required for acquiring each individual

P-OTDR. An SOP variation that is too high during the time period required

for acquiring each individual P-OTDR will result in the instrument not being

able to measure the fiber PMD correctly.

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Exfo FTB-5600 Distributed PMD Analyzer Bedienungsanleitung Seite 133