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Use of Mounting Flanges
Mounting flanges are either U-
shaped or L-shaped and are
installed in the four corners of a
4-post equipment rack. They
provide either round or square
holes to mount equipment to.
The EIA-310-D standard does
not specify the design of
mounting flanges. See the image
on the right for an example of
a
.
cabinet's NEMA or RETMA rails
Mounting Flange Holes
EIA-310-D specifies the placement of the mounting holes in the mounting flange,
which can be round, square, or threaded. See
.
FIGURE 2-4
Nema Rail and Retma Rail Hole Patterns
FIGURE 2-4
14
Sun StorageTek 6540 Rack Ready Site Preparation and Installation Support Guide • July 2006
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