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 number of ports of fiber optic junction boxes ranges from 8. Fiber Termination Box, also known as FTB, typically consists of two main parts: the outer shell body and the adapter tray that protects the fiber connector points. They play a critical role in managing. Although both handle fiber management, they serve very different purposes in the network.