Is ONU a beam splitter
A GPON network consists of OLT (Optical Line Terminals), ONU (Optical Network Unit), and a splitter. An optical distribution network (ODN) mainly has primary splitting and secondary splitting, or centralized splitting and cascade splitting. A splitter takes a single beam of light from the OLT and splits it into multiple beams (e. , 1:32 or 1:64) to serve multiple homes, eliminating the need to run a dedicated fiber from the ISP to every single house. Additionally, beamsplitters can be used in reverse to combine two different beams into a single one. ODN is all composed of passive components such as optical splitter, which does not need expensive active electronic equipment.
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