1U Economic Optical Distribution Frame for 24 SC ports or double LC, with 2 joints fasteners and accessories to organize the fibers. Connectorize with pigtails and. 24core,48core,72core. multiple unit options,all the unit can be installed in 19inch ODF rack. It acts as a distribution point for fiber-optic cables in a central office, data center, or other communication. Opton ODF-24 - Rack 19 "modular fiber optic distribution frame, 2U height, 24J capacity. The height is about 2U - exactly 7 cm and a depth of 30 cm. The frame is equipped with one cassette module, which. Fiber Management Tray also called ODF Distribution Box, Integrated Splicing and Distribution ODF. It is mainly used for cable inlet, grounding and fixing and the splicing between the terminal end and pigtail.