Fujitsu ETERNUS DX S5 Series - Figure 171 Power Supply Unit (AC Power Type); Figure 172 Power Supply Unit (DC Power Type)

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Power Supply Units
There are two types of the power supply units: AC power type and DC power type. The AC power type power
supply unit converts input AC power from a power socket to DC power and supplies power to each component.
Each power supply unit contains fans.
A 2.5" type drive enclosure and a 3.5" type drive enclosure have two power supply units, which makes it possible
for a failed unit to be replaced while the system is running.
A high-density drive enclosure has four power supply units and up to two failed units can be replaced while the
system is running.
Figure 171 Power Supply Unit (AC Power Type)
1 2
POWER LED
F
AULT LED AC MISSING LED
FAN FAIL LED
1 PSU switch
This switch is used to turn on and off the AC power supply.
2 Inlet
This inlet is used to connect a power cord.
Figure 172 Power Supply Unit (DC Power Type)
POWER LED
F
AULT LED AC MISSING LED
FAN FAIL LED
1
2
1 PSU switch
This switch is used to turn on and off the DC power supply.
2 Inlet
This inlet is used to connect a power cord.
6. Hardware Configurations
Drive Enclosure
271 Design Guide