8 Cores IP65 Fiber Optic Distribution Box is used as a termination point for the feeder cable to connect with drop cable in FTTX communication network system. They only need to unscrew and open the window to check the fiber. Achieve successful cable management, handle high amounts of fiber cable and add density to fiber frames with the new DCX Optical Distribution Frame (ODF) System which features innovations like flippable cassettes, modular frame design and multiple configuration options. The ODF System Components. GL FIBER' fiber optic cable has a construction of optic fiber, loose tube or tight buffer or semi-tight buffer, strength members (FRP, Steel wire, Aramid yarns, Glass yarns, etc. ), water blocking material (tube jelly, cable jelly, water blocking yarns, water blocking tape, etc.