Exfo FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 Manuel d'utilisateur télécharger pdf (Page 77)

Setting Up the Instrument in WDM Mode

OSA/OCA 71

Setting Up WDM Analysis Parameters

 Wavelength offset (nm): indicates the offset value applied on the

wavelength. This does not replace a calibration performed at

EXFO, but it can help you temporarily sharpen the specifications if

you have determined that, for example, your modules are used

beyond the normal allowed use. Entering a value in THz is not

possible. When an offset is applied, it is indicated at the bottom of

the graph ( ).

 Power offset (dB): indicates the offset value applied on the power.

This does not replace a calibration performed at EXFO, but it can

help you achieve the specifications if you have determined that, for

example, your modules are used beyond the normal allowed use.

When an offset is applied, it is indicated at the bottom of the graph

(P ).

To edit the power offset as a tap percentage, press the Edit %

button.

The percentage value entered in Edit percentage will be

converted to a corresponding equivalent value in dB.

 Bandwidth at (dB): Set the power level used, relative to the

channel peak power, to compute the second bandwidth result.

5. Press OK to save the changes and close the window, or press Cancel to

exit without saving.

Press Restore Defaults to remove all the changes and apply the default

values.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 250 251

Pas de commentaire

Exfo FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 Manuel d'utilisateur Page 77