FUJITSU PRIMERGY BX600 S3 - Manual (Page 125)

BX600 S3 Operating Manual 125
12 Power Supply Concept
In the basic configuration, the PRIMERGY BX600 S3 basic unit contains two
hot swap power supply units (PSU1 and PSU2 in
figure 69 ). The power supply
units adapt automatically to any voltage within the range 200 V - 240 V.
Figure 69: PRIMERGY BX600 S3 basic unit: power supply units
To provide a redundant power supply, a third or fourth power supply unit can be
installed (PSU3 and PSU4 in
figure 69 ).
If one of the four power units fails, the other two/three units will ensure the unit
continues to operate normally. The defective power supply unit can be replaced
while the unit is still running (hot swap).
I
Please make sure that each of the power supply units is connected to a
different phase. This will provide you with additional phase redundancy
for high availability configurations. If one phase has failed, the power
supply units connected to the other phases keep active. You can get full
phase redundancy with up to three power supply units. With four power
supply units, two of them are to be connected to one phase (see also
“Related Publications” on page 157 ).
PSU1 PSU2
PSU4
PSU3