Figure 171 Power Supply Unit (Ac Power Type); Figure 172 Power Supply Unit (Dc Power Type) - Fujitsu ETERNUS DX S5 Series Design Manual

6. Hardware Configurations
Drive Enclosure
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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)
POWER LED
FAULT 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
FAULT LED
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.
FAN FAIL LED
1
AC MISSING LED
FAN FAIL LED
AC MISSING LED
2
271
2
1
Design Guide