The 2 Cores Fiber Distribution Box (FDB-102A-1) IP-55 SC Connector PLC Splitter is a compact and rugged outdoor enclosure designed to provide a safe and secure environment for fiber optic cables and splices. It fully supports mechanical/fusion splicing, termination, and cable mangement within a single, compact indoor unit. The. Check each product page for other buying options. Need help? Fiber distribution box is suitable for the wiring connection of optical cable and optical communication equipment, through the adapter in the wiring box, the optical jumper leads the optical signal, and realizes the optical wiring function.