The optical fiber terminal box is the terminal joint of an optical cable. One end of it is an optical cable and the other end is a pigtail. It is equivalent to a device that splits an optical cable into a single optical fiber. It is a user optical cable terminal box installed on the wall. Its function is to provide Fiber-to-fiber fusion, fiber-to-pigtail fusion, and optical connector handover. It also provides mechanical and environmental protection for the optical fiber and its components and allows for proper inspection to maintain the highest standards of fiber management.