48 Core fibre Optic Splice Joint Enlosure Dome Types F101H are used to distribute, splice, and store the outdoor optical cables which enter and exit from the ends of the enclosure. There are two connection ways: direct connection and splitting connection. They are applicable to situations such as overhead, manwell of pipeline, embedded situation etc. Comparing with terminal box,the enclosure requires much stricter requirement of seal. Sealing ring and air valve are required for enclosure, but that are not necessary for terminal box.