Power supply units
A DD9500/DD9800 system has four power supply units, numbered PSU0, PSU1,
PSU2, and PSU3 from left to right. Each power supply has its own integral cooling
fan.
Note
The DD9500/DD9800 system should be powered from redundant AC sources. This
allows one AC source to fail or be serviced without impacting system operation. PSU0
and PSU1 should be attached to one AC source. PSU2 and PSU3 should be attached
to the other AC source.
The AC power plugs are located to the right of each power supply. The wire clips for
the AC cords hold the cords in place. The wire clips must be disengaged before
disconnecting the AC power to each power supply.
Figure 9 Four power supplies
Management module
The following figure shows the location of the DD9500/DD9800 management module
on the rear of the system and identifies the interfaces.
Hardware Overview
Power supply units
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