You might need to mark the location for the rack installation.
Use the procedure in this section to perform this task.
To mark the installation location and install the nut
clips into a rack, complete these steps:
- Determine where in the rack to place the unit and make
note of the location numbers. The disk drive enclosure
is four Electronic Industries Alliance (EIA) units high. An EIA unit
is 44.50 mm (1.75 in.) in height. The rack contains three mounting
holes for each EIA unit of height. This system unit, therefore, is
177.8 mm (7 in.) high and covers 12 mounting holes in the rack.
- Facing the front of the rack and working
from the left side, locate the lowest EIA unit that your unit uses.
Make a note of the EIA location. Use tape, a marker, or a pencil to
mark the top mounting hole (B) of this EIA
unit. Mark the rack so that the mark can be seen from the rear of
the rack.
Figure 1. Marking the installation
locations
- On the left rail, count up two mounting
holes from where you placed the mark in step 2 and place another mark
next to that mounting hole (B). Mark the rack
so that the mark can be seen from the rear of the rack. You
now have two marks on the rack, with one mounting hole between the
marks.
- Repeat steps 2 and 3 to place two marks
on the corresponding mounting holes on the front-right rail.
- Go to the back of the rack. On the left side, find the
EIA unit that corresponds to the lowest EIA unit marked on the front
of the rack.
- Place a mark at the top hole (C) of
the lowest EIA unit. Mark the rack so that the mark can be seen from
the rear of the rack.
- Count up two mounting holes from where
you placed the mark in step 6 and place another
mark next to that mounting hole (C).
- Repeat steps 6 and 7 to place two marks
on the corresponding mounting holes on the rear-right rail.
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