Chassis - Sun Microsystems SPARC Enterprise T5120 Installation And Service Manual

1.1.1

Chassis

The External I/O Expansion Unit chassis includes the centerplane (item 4 in
FIGURE 1-2
There are no serviceable components inside the chassis. If the centerplane or the
internal AC cables are damaged, the chassis must be replaced.
Note – A replacement chassis does not include power supply units (PSUs) or I/O
boats. Transfer the PSUs and I/O boats from the damaged chassis to the replacement
chassis.
Each internal AC cable supplies only one PSU. To ensure redundant power, use the
two AC cords supplied with the External I/O Expansion Unit to connect the internal
AC cables to separate AC sources.
Caution – Do not connect the internal AC cables directly to a power strip. Use the
the AC power cords supplied with the External I/O Expansion Unit to connect the
internal AC cables to electrical power.
Caution – Do not substitute other AC power cords for the AC power cords supplied
with the External I/O Expansion Unit. The substitute AC power cords might not
have the same power rating.
1-4 External I/O Expansion Unit Installation and Service Manual for SPARC Enterprise T5xxx Servers • April 2011
) and two non-removable internal AC cables (item 7 in ).
FIGURE 1-2