v Packaged in the small bag 4 rail-mounting screws - used on racks with round or square holes
(▌8▐).
v 12 black plastic square plugs for covering rack holes for the 4U library application (▌2▐)
v 12 black plastic round plugs for covering rack holes for the 4U library application (▌3▐)
2. Determine the location in your rack for your library to be installed. With a pencil, mark the location
on each vertical rail in your rack.
Note: A 2U library requires 2U (3.5 in.) of rack space. A 4U library requires 4U (7 in.) of rack space.
▌1▐
Two EIA units for round hole and
square hole installation
▌3▐ Wide Gaps within the EIA unit
▌2▐ ▌4▐ Narrow Gaps between EIA units
3. With the screws for your rack type (round holes or square holes), a #2 Phillips screwdriver, and
ensuring that the flange on each rail points toward the other to form a shelf, secure one rail to each
side of the rack in your chosen rack location. Secure both the front and back of each rail to the rack.
The narrow end of each rail goes to the rear of the rack. The rails extend to fit various rack depths.
Each rail requires 2U of rack space (▌1▐ in Figure 25 on page 48).
Figure 24. Examples of EIA units for round hole and square hole installations
Installation and configuration 47