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Chapter 2
Installing the External I/O Expansion Unit in a Rack
2-3
■
The External I/O Expansion Unit occupies a height of four rack units (6.9 in./175
mm).
■
Mount the heaviest subassemblies at the lowest available opening to minimize the
precarious effects of a top-heavy system.
■
If you are installing more than one External I/O Expansion Unit, install them
together. Do not install a shorter subassembly between External I/O Expansion
Unit where the rear of the shorter subassembly might difficult to reach.
■
If the rack is marked with rack units, place the mounting bracket so that the lower
screw hole on the bracket is one hole above an RU mark (
). This aligns
the mounting bracket with the lower RU mark.
FIGURE 2-2
Typical Rack Unit Marks
3. Using No. 2 Phillips screws, attach the chassis lock brackets to the sides of the
External I/O Expansion Unit (
Summary of Contents for SPARC Enterprise M4000
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