The indoor C700-fiber optic cabinet is made of cold rolled steel or alloy for storage of fiber optics, jumpers and related control equipment. And its also the same as the network cabinet, it consists of a frame and a cover (door). It generally has a rectangular parallelepiped shape and is placed on the floor. It can provide suitable environmental and safety protection for fiber optic cables, shielding interference, ordering and neatly arranging optical fibers for future maintenance. This is the first level assembly after the system level. A cabinet that does not have a closed structure is called a rack.