Fujitsu SPARC ENTERPRISE M9000 Service Manual page 125

Internal Connection of Power Supply (Single-Phase Power Feed)
FIGURE 4-1
Distribution panel
AC
(ON/OFF)
Internal Connection of Power Supply (Three-Phase Power Feed)
FIGURE 4-2
Distribution panel
AC
(ON/OFF)
To use three-phase power feed, you need the three-phase power feed option and the
power cabinet for mounting the power supply.
In case of three-phase power feed, AC section is not located in the SPARC Enterprise
server cabinet. The AC section for the three-phase power feed is located in the power
cabinet.
Two types of options are available for three-phase power feed, the star connection
and the delta connection: the star connection option has two sorts of connections,
connection for the neutral line and connections for phases, and the delta connection
option has connections for phases. For details, see the SPARC Enterprise
M8000/M9000 Servers Site Planning Guide.
Main line switch
ACS
(ON/OFF)
Main line switch
ACS
(ON/OFF)
Power supply unit
PSU
PSU
PSU
Switch
ACS_D
(ON/OFF)
ACS_D
ACS_D
ACS_D
Chapter 4 FRU Removal Preparation
Power supply unit
PSU
PSU
PSU
PSU
4-25