However, in order to stand the test of time, a good network cabinet must be made of the cold rolled steel sheet with the thickness of 1. 0mm for Mounting rail, fixed shelf of 1. and comes with a smoke-gray tempered glass. Split, perforated sheet steel rear door, multi-piece roof plate for side cable entry on both sides, open base frame, without side panels. 6 mm (19"). els, routers and storage equipment. The cabinets are used to bring together IT equipment and the corre ponding cables neatly in one place. i-Net Networks shall not be held responsible or liable to an individual or an organization against the contents of the datasheet and reserves the right to make changes without. SmartRack enclosures are designed for secure, high density server and networking applications in IT environments. They're perfect for secure environments like locked server rooms where you need easy access and maximum airflow. Consequently, many IT professionals prefer open-frame racks for testing labs and development environments.