The alignment frame, also known as cable tray, is a special equipment used in the equipment room for alignment, refers to the telecommunications, netcom, radio and television equipment room through the alignment frame after the deployment of optical, cable into the terminal equipment, used to tie the optical, cable with the iron frame. Applicable to horizontal, vertical and multi-layer separation of wiring occasions. Compact structure, large amount of wiring, capacity expansion and subsequent construction of the project can be easily achieved when the distribution of line construction "three lines" separation. The installation size of the rack can be flexibly designed by the user according to the actual situation of the computer room.