2-23
IM AQ7280-01EN
Optical Pulse Measurement (OTDR)
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Index
2.4 Performing Averaged Measurement and
Measuring the Distances to Breaks
WARNING
• During measurement, light is transmitted from the light source ports. Do not disconnect the
connected optical fiber cables. Visual impairment may occur if the light enters the eye.
• Close the covers of any light source ports that do not have optical fiber cables connected
to them. Visual impairment may occur if light that is mistakenly emitted from these ports
enters the eye.
French
AVERTISSEMENT
• Lorsque l’AQ7280 génère de la lumière, la lumière est émise à travers les ports de source
lumineuse. Ne pas débrancher les câbles de fibre optique connectés. Des lésions oculaires
peuvent être causées si le faisceau lumineux pénètre l’œil.
• Couvrir les caches des ports de source lumineuse libres. Sur les modèles dotés de deux
ports de source lumineuse ou plus, protéger les yeux contre l’émission accidentelle de
lumière depuis le mauvais port.
The AQ7280 is equipped with a feature that you can use to locate and display faults in optical fiber
cables. This feature works by performing an OTDR averaged measurement and then automatically
performing an OTDR event analysis after the measurement is complete.
Use the OTDR feature to analyze waveforms.
Procedure
Selecting the Route
1.
From the top menu, select
Fault Locator
. A soft key menu for selecting the route appears.
Normal
Searches for fault points in the optical fiber cable
connecting OLT
1
and ONU
2
OLT->Splitter
Searches the route from the OLT to the optical splitter
OLT->Splitter->ONU
Searches the routes from the OLT through the optical splitter
to each ONU
ONU->Splitter
Searches the route from an ONU to the optical splitter.
ONU->Splitter->OLT
Search the route from an ONU through the optical splitter to each OLT.
1 OLT (Optical Line Termination): Optical line termination on the station side
2 ONU (Optical Network Unit): Optical line termination on the subscriber side