Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manual de usuario descargar pdf (Pagina 77)

100

101

Setting Up the Instrument in WDM Mode

Optical Spectrum Analyzer 69

Setting Up WDM Analysis Parameters

3. Select the Activate all thresholds option, to manually set the global

threshold values. If this option is not selected, all the thresholds will be

deactivated, results are displayed without a Pass/Fail status and Global

pass/fail status will not be active in the Global Results tab.

4. Enter values in the boxes as explained below:

³ Average signal power (dBm): indicates the sum of the signal

powers of all the peaks detected in the current acquisition, divided

by the total number of peaks.

³ Signal power flatness (dB): indicates the difference between the

maximum and minimum signal power values of the detected

peaks, in dB.

³ Average OSNR (dB): indicates the sum of the entire OSNR of the

peaks detected in the current acquisition, divided by the total

number of peaks.

³ OSNR flatness (dB): indicates the difference between the

maximum and minimum OSNR values of the detected peaks, in

dB.

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Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manual de usuario Pagina 77

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