Rack rail
From Wikipedia, the free encyclopedia
A rack rail, or rack strip, is used to mount rack-mountable equipment and 19-inch rack mount accessories within a 19-inch rack.[1] A minimum of two rack rails are required to mount equipment within a rack. The height of a rack rail is determined by the number of rack units required for mounting its equipment.
The design of racks and rack rails is specified in ECIA - EIA/ECA-310.
Each rack unit (U) is equivalent to 1+3⁄4 in (44 mm). Most rack rails are in sizes from 2 units high (3+1⁄2 in or 89 mm) to 54 units high (78+3⁄4 in or 2,000 mm).
