Sun Microsystems SPARC Enterprise T5120 Installation And Service Manual page 62

of the chassis contact hooks that are located on the mounting brackets, wedging
the mounting brackets tightly against the sides of the chassis. This wedging action
stabilizes the External I/O Expansion Unit and is necessary to reduce the amount
of vibration that occurs when the system is running.
3. Tighten the screws at the rear of the mounting brackets.
4. Lock the front of the External I/O Expansion Unit in place with two screws on
each side (
FIGURE 2-6
2-8 External I/O Expansion Unit Installation and Service Manual for SPARC Enterprise T5xxx Servers • April 2011
).
FIGURE 2-6
Installing the External I/O Expansion Unit in the Rack