Among these, Optical Time-Domain Reflectometry (OTDR), Fiber Bragg Gratings (FBG), and Distributed Acoustic Sensing (DAS) are paramount due to their unique functionalities and applications. To address these challenges, we propose in this paper various machine learning (ML) approaches for fault monitoring in PON systems, and we wo ks, fault mo ce transparency, cost effectiveness, and scalability among other. This white paper introduces an evolved methodology to manage FTTx Optical Distribution Network (ODN) performance. A centralized OTDR-based solution is the core of this evolved methodology, which greatly improves the visibility and operation efficiency in maintaining ODN quality and resilience. On a. A passive device used to split or combine signals on fiber optics may be called a splitter, combiner or coupler, but splitter is the most common term. They have been used since the 1980s to create networks and provide the technology for today's passive optical networks used in fiber to the home. StrataSync is a cloud-hosted, web enabled solution that provides asset, configuration, and test-data management of VIAVI instruments. It enables superior workflow by defining tasks (jobs), allocation to a tech, management and tracking of test instruments, collecting and analyzing results from the. Abstract: Monitoring beyond the splitter in a PON is costly due to the need for additional hardware.