Trays/shelves/chassis : - It is often required to mount Electronic Instrument and equipments other than 19" mountable ,inside the Rack. These units can be placed on the trays or shelves. Stationary type trays can be fixed either to the vertical profiles of the frame or to the chassis runners. For sliding trays , Telescopic slides can be mounted on chassis runners or to the frame profile with standard mounting Brackets at front and rear of the rack . With this arrangement , Using above options Trays can be fixed at any location depth-wise.