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4-36 SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
M9000 Server Three-Phase Power Feed
FIGURE 4-9 Main Line Switch (M9000 Server with Three-Phase Power Feed)
Note – Same type of switch is used for main line switches in base cabinet and power
cabinet on a system with three-phase dual power feed.
Main line switch
for dual power
feed (x1)
ACSTPH#1
Main line
switch (x1)
ACSTPH#0
Main line
switch (x1)
ACSTPH#0
Main line switch
for dual power
feed (x1)
ACSTPH#1
Expansion cabinet
Rear
Base cabinet Power cabinet
(for Base cabinet)
Power cabinet
(for Expansion cabinet)