This fiber optic distribution box is able to hold up to 16 subscribers. It typically contains splice trays, adapters, and cable routing components to manage fiber connections. FDBs are used to organize incoming and outgoing cables. Indoor FTTH Fiber Distribution Box, optical fiber distribution box is used for the fusion splicing, splitting, wiring transmission, and other functions of the optical transmission terminal. This robust FDB integrates a connectorized splitter, optimizing fiber connectivity and facilitating swift deployment in both indoor and. Fiber to the home (FTTH) is the use of fiber optic cable to directly connect to customer homes or premises.