Indoor options encompass locations like the community's central computer room, building's weak current well, or floor wiring box. Optical cables can be routed from various sources, including first-level optical crossover boxes, second-level optical crossover boxes, or. When employing the first-level splitting method in a residential network, optical splitters offer flexibility for indoor or outdoor installation. Centralized splitting occurs often, but not always, in central ofices or. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network Terminals (ONTs) at users' homes, splitters eliminate the need for dedicated fibers to each residence—slashing infrastructure costs while scaling network reach. This guide. It is widely used in passive optical network systems, such as EPON, GPON, BPON, FTTX, and FTTH, to connect central office and terminal equipment and to achieve the branching and distribution of optical signals. Optical splitters can be categorized by manufacturing process into: They can also be. An Optical Splitter, also known as a beam splitter, is a passive optical device that divides a single input optical signal into two or more output signals. Conversely, it can also combine multiple signals into one.