Optical Distribution Frame (ODF) is used for wiring connections between fiber optic cables and optical communication devices or among the communication devices. It is an important corollary equipment in optical transmission system, mainly used for fiber optic terminal splicing, fiber optic connector installation, optical path adjusting, excess pigtail storage and fiber optic cable protection, etc..

ODF has an important role for the safe operation and flexible use of fiber optic communications networks. With the increasingly high degree of network integration, there has been optical digital mixed distribution frames which integrate ODF, DDF, and power distribution unit in one set. They are used for wiring systems in fiber to the cell, fiber to the building, the remote module office and small wireless base station.