The fiber optic closure FOBP is the element which is used to connect and protect the fiber optic connections in different applications. The fiber optic closure are specifically designed for connecting optic fiber routes as well for branchings. Fibrain FOBP closure can be placed in aerial application or wall-mounted in the manholes. FOBP thermic type closure is equipped with 4 round ports for single cable with max. diameter Ø20 mm, 8 round ports for single cable up to Ø10 mm and one oval entrance for uncut cable. Depending on the size the fiber optic closure capacity is up to 144 or 288 fibers. FOBP closure can be equipped with adapters panel (9x SC SX for 144F, 18x SC SX for 288F closure). The closure can be widely used in all types of FTTx telecommunications system architecture.