Sparc Enterprise M3000, Installation Manual

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2-4 SPARC Enterprise M3000 Server Installation Guide • March 2012
Note – For the servers that have the plug with lock function, confirm that a 15A
overcurrent protection device is available outside the server. If one is not available,
prepare an external 15A overcurrent protection that can be achieved by means of no-
fuse breakers (NFBs) or fuses. The plug with lock function refers to plugs other than
grounding-type ones with two parallel blades, such as the NEMA L6-30, L6-20, L6-
15, and L5-15.
2.2.1.3 Facility Power Requirements
For proper redundancy, the facility must have two independent power sources. That
is, circuit breakers must be connected either to separate power company utility feeds
or to an uninterruptible power system (UPS). For power redundancy, the power
cords must not be connected to the same facility power source.
If the computer equipment is subjected to repeated power interruptions and
fluctuations, it is susceptible to a component failure rate that is higher than it would
be with a stable power source.
The M3000 server has the following basic connection configurations:
■
Power cords with a redundant PSU connection (
FIGURE 2-1
)
■
Power cords with a dual-power feed connection (
FIGURE 2-2
)
To connect the power cords in a redundant PSU connection to the same AC power
supply, connect each power cord independently to its own outlet.
TABLE 2-2
AC Power Cords and Connector Shape
Destination Power Cord Type Connector Shape
Japan NEMA 5-15 125V15A IEC 60320 C13
North America NEMA L6-15 250V15A
China GB 2099.1 250V15A
Hong Kong BS1363 250V15A
South Korea IEC 60320-C14 250V15A