What is an ODN network? What does ODN mean? What are the ODN vendors?
What is ODN? What is an ODN network?
The FTTx system consists of three parts: the central office equipment (OLT), the user terminal equipment (ONT), and the optical distribution network (ODN). As an important part of the FTTx system, ODN is the optical transmission physical channel between the OLT and the ONU. It is usually composed of fiber optic cables, optical connectors, optical splitters, and associated equipment for connecting these devices. The ODN consists of five parts: the feeder segment, the cable distribution point, the wiring segment, the fiber optic cable access point, and the home segment. From the ODF rack of the central office room to the feeder section of the cable distribution point, as the trunk optical cable, to achieve long-distance coverage; from the distribution point of the optical cable to the wiring section of the user access point, the nearest optical fiber is allocated to the user area along the feeder cable. The user access point to the terminal of the terminal to achieve fiber-to-the-home.
ODN network structure
From the perspective of network structure, the optical distribution network consists of feeder fiber, optical splitter and branch line, which are respectively composed of different passive optical components. The main passive optical components are:
Fiber optic cable: metro cable, indoor dispatch cable, butterfly cable, etc.
Optical splitter
Optical fiber distribution equipment: ODF, MODF, OCC, connector box, fiber distribution box, split fiber splitter box, etc.
Fiber optic connectors: movable connectors, fiber optic mechanical connectors, fiber optic field connectors, etc.
FTTH ODN network structure diagram
What are the ODN vendors?
At present, there are mainly established ODN complete solutions and products in China, such as FiberHome Communications and 3M, and Huawei and ZTE are also available through integration with other manufacturers. Then, such as the Japanese sea, Putian, Tengcang, Letong, Zhongtian and other professional cabinet manufacturers, optical cable manufacturers also gradually expand their product line based on the current needs based on professional advantages.
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