130 Upgrade and Maintenance Manual RX2540 M2
DC PSU
The server can be equipped with up to two DC PSUs.
In its basic configuration, the server has one PSU that adjusts automatically to
any mains voltage in the range of -40.5 V to -57 V. Besides the PSU, a second
PSU can be installed optionally to serve as a redundant power supply. If one
PSU fails, the second PSU in the redundant configuration ensures operation
can continue uninterrupted and the defective PSU can be replaced during
operation (hot-plug).
V CAUTION!
The server supports a mains voltage in the range of -40.5 V to -57 V. You
may only operate the server if its rated voltage range corresponds to the
local mains voltage.
6.1.1 PSU configurations
I All different hot-plug PSUs are to install, to remove or to replace in the
same way.
Figure 31: Hot-plug AC PSUs
Power class Number in figure Power item
1 1 450 W AC Platinum
2
2 800 W AC Platinum
3 800 W AC Titanium
3 4 1200 W AC Platinum
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