An optical splitter is a passive device, but it doesn't work alone. It relies on active equipment at both ends of the fiber link: the Optical Line Terminal (OLT) at the provider's central office and an Optical Network Unit (ONT) at your home. Splitter architectures can impact fiber counts, splicing needed, numbers of fiber needed, and the customer on-boarding process. conversations and confusion in the industry. A “splitter” is a power splitter. Its primary role is in Passive Optical Networks (PON), which are the foundation of. Yes, with the optical splitter, various end users can access broadband networks through the same fiber. 5 dBm to each node – still healthy.