What is a rack with a swing frame?

Racks with a swing frame have the inner frame with the 19-inch rails mounted on hinges. The frame opens outwards like a door together with the equipment, so its rear side becomes accessible as well. They are found mainly in wall-mounted racks, where the back sits flush against the wall and would otherwise be out of reach.

The benefit is practical: you can connect cables, check power supplies or replace equipment without unscrewing the rack from the wall. They suit shops, small offices and network distribution points in corridors, with equipment such as patch panels, switches and small recorders.

Practical tip: when the frame swings open, the whole weight of the equipment is carried by the hinges and the wall, so check the load capacity and fix the rack with anchors suited to the wall material. Also leave enough slack in the cables entering the rack so they do not pull tight when it opens. A common mistake is installing heavy equipment, such as a UPS with batteries, on a swing frame that was not designed for that weight.