FDB-104C-2 Fiber Distritbution Box 4 Cores IP – 55 SC Connector PLC Splitter is a high-quality fiber optic distribution box designed for indoor or outdoor use. With an IP-55 rating, it is dust-tight and protected against water jets, making it suitable for use in harsh environments. It has been designed to serve as a building entry point for FTTH applications but is also a perfect choice for all types of FTTX applications. Unique connection module design, 2. Long fiber around the fiber disk for installing 3. The pigtail. Fiber distribution box are one of the important equipment in fiber optic networks, mainly used for distributing and managing optical signals.