ODF frame is specially designed for fibre optic communication room design of fibre optic wiring equipment, with optical cable fixing and protection function of optical cable termination function, adjustment function, optical cable core and pigtail protection function. It can be assembled into a fibre optic distribution frame alone, or with digital wiring unit and audio wiring unit in a cabinet/rack. Comprehensive distribution frame. The equipment configuration flexibility, simple installation and use, easy to maintain, easy to manage, is a fibre optic communication cable network terminals, or relay points to achieve the row of fibre, fiber optic cable fusion splicing and access to the indispensable equipment.　It is an important supporting equipment in the optical transmission system, mainly used for optical cable terminals, optical fusion splicing, optical connector installation, optical road transfer, excess pigtail storage and cable protection, etc., which has an important role for the safe operation of optical fibre communication networks and flexible use. In the past, the optical cable used in optical communication construction is usually a few to dozens of cores, and the capacity of optical fibre distribution frames is usually below 100 cores, and these optical fibre distribution frames show more and more drawbacks such as smaller storage capacity of pigtail fibres, inconvenient operation of deployment and connection, fewer functions, and simple structure, etc. Nowadays, optical communication has been developed in long-distance trunk lines. Now optical communication has been widely used in long-distance trunk line and local network relay transmission, and fibre-optic has also become the development direction of access network.