An OLT (Optical Line Terminal) is the core device in a Passive Optical Network (PON) — the interface between the core network and the subscriber's optical access network. It aggregates multiple ONUs/ONTs through optical splitters and handles data distribution, management, and. It allows a single input from the OLT to serve multiple endpoints without active electronics. In the upstream the ONx is the Tx, and the OLT is the Rx. An OLT may talk to 32 or more ONxs over a single fiber optic cable that is part of a high fiber count (ct. The Asia Pacific region (APAC) leads worldwide consumption of Planar Lightwave Circuit (PLC) splitter compact devices with a 68% share, followed by the Americas and the EMEA (Europe, Middle East, and Africa) region. The global PLC Fiber Optic Splitter market was valued at $4. 47 Billion USD in 2020. In a recent FBA 101 Series article, FBA defined several splitter architectures. Due to the wide range of deployment configurations, this document will provide qualitative differences, but no specific quantitative comparisons.
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