C-4
SPARC Enterprise M3000 Server Installation Guide • March 2012
Note –
Overcurrent protection devices must meet applicable national and local
electrical safety codes and be approved for the intended application.
The DC power supply model of the M3000 server has the following basic connection
configurations:
■
Power cords with a redundant PSU connection (
FIGURE C-2
)
■
Power cords with a dual-power feed connection (
FIGURE C-3
)
To connect the power cords in a redundant PSU configuration to the same DC power
supply, connect each power cord independently to its own outlet.
FIGURE C-2
Power Cords With a Redundant PSU Connection
To connect the power cords in a dual power feed configuration, connect each power
cord separately to each DC power supply equipment.
PSU#1 PSU#0
Branch connection
Rectifier
Battery
CB
CB
AC
RTN
-48 Vdc to -60 Vdc
-48 Vdc to -60 Vdc
RTN
FG
FG
Customer facilities
CB: Circuit breaker
Ground point
Summary of Contents for Enterprise M3000
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