Basic skills:
As the terminal equipment of the optical cable line, the optical fiber terminal box should have 4 basic functions.
①Fixed function After the optical cable enters the rack, its outer sheath and reinforcing core shall be mechanically fixed, ground wire protection parts shall be installed, end protection shall be carried out, and the optical fibers shall be grouped and protected.
② Fusion splicing function After the optical fiber drawn from the optical cable is spliced ​​with the tail cable, the excess optical fiber is coiled and stored, and the splice joint is protected.
③Matching function Plug the connector attached to the tail cable to the adapter, and realize the optical connection with the optical connector on the other side of the adapter. Adapters and connectors should be able to be flexibly plugged and unplugged; the optical path can be freely deployed and tested.
④Storage function Provides storage for various cross-connected optical cables between racks so that they can be placed in a regular and orderly manner. There should be an appropriate space and method in the optical fiber terminal box to make the wiring of this part of the optical connection line clear, easy to adjust, and meet the requirements of the minimum bending radius.

Use:
Optical fiber terminal boxes are widely used in local telephone, rural telephone network systems, data and image transmission systems, CATV cable television series, used for direct connection and branch connection of indoor optical cables, and play the role of pigtail storage and protection of joints. The cold-rolled steel plate is made of electrostatic spraying, and the design structure is reasonable.
In actual work, the terminal box can be used as an indoor connector box, but the connector box is rarely used as a terminal box for different purposes.
1. The transfer box can be divided into the optical cable transfer box and the cable transfer box. Their functions are used for the front-end wiring of the user.
2. The connection box generally refers to the optical cable connection box, also called the optical cable connector box. In some places, especially the radio and television system, it is also called the optical connection package. Its function is to protect the optical cable connector from external damage. The distribution frame is also divided into the optical cable distribution frame and the cable distribution frame, and the function is also the same as the transfer box, but it is used in the operator's computer room.

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