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Do You Know The Role Of Fiber Optic Terminal Boxes?


Optical fiber terminal box is widely used in local telephone, rural telephone network system, data, image transmission system, CATV cable TV series, used for direct connection and branch connection of indoor optical cable, and plays the role of pigtail disk storage and protection connector The cold-rolled steel plate is made of electrostatic spray plastic, the design structure is reasonable, and the optical fiber reinforced core can be fixed at the terminal.

Because the uses are different, the terminal box can be used as an indoor connector box in practice, but the connector box is rarely used as a terminal box.

1. The transfer box can be divided into optical cable transfer box and cable transfer box. Their functions are used for user front-end wiring.

2. The connection box generally refers to the optical cable connection box, also known as the optical cable connector box. In some places, especially the broadcasting system is also called the optical connection package, its role is to protect the optical cable connector from external damage. The distribution frame is also divided into an optical cable distribution frame and a cable distribution frame, which also functions like a transfer box, but it is used in the operator's room.

Basic functions: The optical fiber terminal box as the terminal equipment of the optical cable line should have 4 basic functions.

① Fixed function. After the optical cable enters the rack, its outer sheath and reinforcing core shall be mechanically fixed, ground wire protection components shall be installed, end protection treatment shall be performed, and optical fibers shall be grouped and protected.

② Welding function. After fusion splicing the optical fiber from the optical cable and the pigtail cable, the excess optical fiber is coiled and stored, and the fusion splice is protected.

③ deployment function. Plug the connector attached to the tail cable to the adapter, and realize the optical path connection with the optical connector on the other side of the adapter. Adapters and connectors should be able to be inserted and removed flexibly; the optical path can be freely deployed and tested.

④ Storage function. Provides storage for various cross-connected optical cables between racks, enabling them to be placed neatly and regularly. An appropriate space and method should be provided in the fiber terminal box to make the part of the optical cable clear and easy to adjust, and to meet the requirements of the minimum bending radius.

With the development of optical fiber networks, the existing functions of optical fiber terminal boxes can no longer meet many new requirements. Some manufacturers add some optical fiber network components, such as optical splitters, wavelength division multiplexers, and optical switches, directly to the optical fiber terminal box.