The sealing methods of the optical cable junction box are mainly mechanical, heat shrinkable, breathable and gel. The sealing strength directly affects the safety performance of the internal optical cable. Connection can be divided into two types: direct connection and divergent connection (i.e. 2-in, 2-out, 4-in, 4-out, etc.). Installation is mostly done through wall mounted, overhead, pipeline, underground laying methods, which are buried underground, installed in pipelines, poles, etc. Therefore, junction boxes are widely used in our daily lives.
The structure of the fiber optic cable joint box consists of four parts: the outer shell, internal components, sealing components, and fusion fiber tray. The outer shell provides protection, the internal components provide support, and the fusion fiber tray provides a perfect place for the deployment of optical fibers. The arrangement of internal optical fibers is also very important, requiring strong flexible wiring, so that the optical fibers can be transferred between different disks and meet the conditions for optical signal transmission. If the fiber optic fusion is not standardized, the fiber optic layout will be very chaotic, and even there will be disorderly bending and winding, which will undoubtedly hinder the transmission of optical signals.