An Innovative Solution For in-service Troubleshooting on Live FTTH Networks

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An Innovative Solution For in-service Troubleshooting on Live FTTH Networks

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  • Author: Nicholas Gagnon
When service is activated on a passive optical network (PON), telephony, high-speed Internet and video signals are sent from the optical line terminal (OLT) at the central office (CO) to various optical network terminals (ONTs) at different residential customer locations. In this situation, if one of the ONTs goes down and cannot restart its synchronization with the OLT, this branch of the PON becomes inactive and the customers associated with this branch lose service. The result: A technician is called in to troubleshoot and restart the service. Once at the inactive location, the technician must measure the optical power level to determine if it is sufficient to allow the ONT to synchronize with the OLT. In order to do this, several things must be considered.

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