The 4-core fiber termination box provides a stable, protective joint between optical cable and distribution pigtails at the end of fiber cables. It is typically used in cabling work area subsystems. Fiber Optic Wall Mount Box with LC Couplers for Single Mode & Multimode Fiber Optic Cable. | Fiber Box Enclosure for MPOE's, Network Rooms, and IDF Rooms. OTRANS strives to provide you with professional, reliable. The Fiber Optic Distribution Box is a multifunctional termination point to connect feeder cables with drop cables in FTTX communication network systems.