Learn how to install a fiber optic termination box step-by-step for FTTH projects. Covers mounting, splicing, routing, labeling, and testing for indoor/outdoor use. It helps keep your connectors free from contamination and dust, while also keeping your assembly neat and organized. FTBs play a vital role in ensuring the. It is used in a terminal box to connect the optical fibers in the optical cable, and to connect the optical cable and the jumper through the terminal box coupler (adapter). It functions as a junction between the incoming fiber cable and the outgoing customer-side fiber cable, where one fiber can be spliced, patched. A Fiber Termination Box, also known as an optical termination box (OTB), is a compact, specialized enclosure designed for the organization, termination, splicing, and protection of fiber optic cables.