Exfo FTB-700 for FTB-1 Manuel d'utilisateur Page 181

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 329
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 180
Analyzing the Results Manually
OTDR 173
Getting Optical Return Loss (ORL)
Getting Optical Return Loss (ORL)
Note: You must use a singlemode OTDR for ORL calculations.
The ORL calculation will provide the following information:
the ORL between markers A and B
the total ORL is calculated either between the span start and the span
end, or on the total fiber span, depending on the option you have
selected in the Setup window.
Optical return loss (ORL) refers to the total effect of multiple reflections
and scattering events within a fiber-optic system.
Note: If you are testing in Real time, the reflectance value you will get is not
necessarily accurate.
To get the ORL value:
1. From the main window, select the Measure tab.
2. In the Results section, press ORL. Markers A and B appear on the
graph.
3. Position markers A and B to delimit the area for which you want to
know the ORL value.
Vue de la page 180
1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 328 329

Commentaires sur ces manuels

Pas de commentaire