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B-34 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
B.20 Rack-mountable Dual Power Feed
Rack-mountable Dual Power Feed (RDPF) is a dedicated option for M8000.
The Rack-mountable Dual Power Feed receives its power supply from two
independent external power sources, ensuring that, even if a failure occurs in one
source, power is supplied to the system from the other source that in normal state. It
is applicable only for single-phase AC input. For three-phase AC power input, a
power cabinet is required.
The Rack-mountable Dual Power Feed is shown in
FIGURE B-30.
FIGURE B-30 Rack-mountable Dual Power Feed (RDPF)
The Rack-mountable Dual Power Feed has the following characteristics.
■ Only cold replacement is available for the rack-mountable dual power feed.
■ It provides the mounting locations for all components of the dual power feeder
(DPF) and the three-phase AC power feeder. There are no exclusive conditions for
mounting.
■ The Rack-mountable Dual Power Feed has a label bearing the printed component
number and manufacture's serial number.