Field assembly optical reinforced adapter kit is design for Telefonica, which compatible with Huawei and Corning system, the waterproof adapter kit is compatible with 4 kind of telefonica FAC fast connectors(include ESC250D, Sumitomo, Fujikura and Furukawa fast connector). Can be used for 2.0*5.0mm outdoor flat drop cable.The filed assembly connector adapter kit is an excellent solution for Huawei and Corning equipment, it is easy to install and noneed special tools.