The IBM 2212 can be placed on a table top or in a rack.
If the IBM 2212 is placed on a table top, the table must meet the requirements for service and operating clearances listed under Service Clearances.
If you choose rack-mounting, you must provide the rack; it is not provided with the IBM 2212.
You can use any EIA standard 19-inch rack. The attachment holes along each side of a rack are usually divided into units of measure called EIA units. Each EIA unit equals 44.5 mm (1.75 in.).
The rack can be open or closed. However, if you choose a closed rack, you must make sure that enough air flows through the IBM 2212. Covers on the front of the rack that would not let air reach the IBM 2212 must be removed or modified to let air pass. Similarly, unvented rear rack covers that would not let air exit the IBM 2212 or that would cause back pressure to build up from several machines must not be used.