Fibe Distribution Box also called FDB is a rugged, low-cost, low-profile interconnect between the central office feed and the indoor/outdoor drop cables for multidwelling unit applications. It is also called multidwelling Unit (MDU).
It simplifies the FDB installation by reducing the materials, complexity and space required to turn up service.
A single housing combines the functionality of a local convergence cabinet with an FDB terminal.
The multilayer design allows installers to access only the components necessary for initial installation or subscriber turn-up.
For the material of FDB, mainly are : plastic housing, cold rolling steel housing with powder coating or SMC.