Fiber optic terminal box is a cable end fitting. Thus, a fiber termination box is used to terminate the optical fiber. 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. Step 2: Access the fiber patch cable into fiber transceivers to convert optical signals into electrical. In that situation, we need to use fiber termination boxes to branch the optical cable and connect it to the indoor circuit. In a highly competitive market, HL Global approach is to satisfy all the different types of optical fiber terminal boxes.