1. The fixing and maintenance functions of optical cables: When introducing optical cables into the fiber corridor box, there must be reliable fixing and maintenance equipment. The fixed metal moisture barrier layer, armor layer, and reinforcement core of the optical cable must be firmly connected to the high-voltage protective grounding equipment. After the optical cable is peeled off, plastic sleeves or spiral tubes must be used to maintain and fix the introduced optical fiber fusion equipment.
2. The termination function of fiber optic cable cores: The equipment's fiber optic cable termination equipment is necessary to facilitate the fusion, installation, and maintenance of fiber optic cables with fiber optic cables or tail fibers, as well as to have surplus storage space for fiber optic cables.
3. Maintenance function of fiber optic fusion joints: It is necessary to maintain all parts of the fiber optic joints. After the fusion of optical fibers, it is necessary to use fusion maintenance sleeves to maintain the joint part.
4. Applicability requirements for cables: It is necessary to be able to apply optical cables that comply with the rules of GB and T7424, optical fibers that comply with the rules of ITU-TG.652 and ITU-TG.657, or optical fibers that are compatible with them, as well as butterfly optical cables for access networks that comply with the rules of YD and T1997-2009.
5. Fiber adjustment function: Through tail fibers, it is possible to quickly and conveniently schedule the fiber number in the optical cable and modify the routing of the transmission system. The length of the tail fibers needs to meet the requirements of fiber adjustment operation.
6. Door lock: The door lock of the fiber optic distribution box is necessary to have an anti-theft structure and excellent damage resistance. All boxes should be reserved with backup traditional padlocks, locks, or other backup processing methods.