A fiber terminal box, also known as a fiber distribution box, is a device used in fiber-optic communication networks to terminate, splice, and distribute optical fibers. It is a small enclosure that can house and protect the fiber optic cables, splices, and connectors. The optical fiber termination box contains fiber optic terminals and fiber optic splice or mechanical protection units Terminal. The fiber termination box is an interface between the fiber cable from the line side and the pigtails to be passed to the fiber distribution frame. FTBs play a vital role in ensuring the.