To
take
advantage
of
the
BladeCenter
T
power
redundancy,
power
modules
1
and
3
should
be
connected
to
different
ac
power
sources
than
power
modules
2
and
4.
These
power
sources
could
be:
v
Building
ac
power
sources
v
Front-end
PDUs
v
Rack
PDUs
Rack
requirements
for
Type
8730
Depending
on
how
many
BladeCenter
T
units
are
installed
in
a
rack
and
the
total
number
of
power
modules,
2
to
10
PDUs
are
required.
A
maximum
of
five
BladeCenter
T
units
can
be
installed
in
a
NetBAY
42U
standard
rack.
Power
distribution
units
Each
BladeCenter
T
unit
has
a
minimum
of
two
or
a
maximum
of
four
power
modules.
When
planning
for
ac
rack
power
distribution,
be
sure
to
plan
for
enough
individual
power
feeds
and
PDUs
to
take
advantage
of
the
redundant
BladeCenter
T
power
supplies.
Each
BladeCenter
T
unit
requires:
v
Two
to
four
ac
power
cords,
one
per
power
module
v
Each
power
module
should
be
powered
from
separate
high-voltage
ac
resources.
v
200
to
240
Vac
50
or
60
Hz
Table
15
on
page
59,
Table
16
on
page
59,
and
Table
17
on
page
59
show
the
part
numbers
and
the
number
of
power
distribution
units
required
to
provide
power
source
for
one
to
five
BladeCenter
T
units
in
a
42U
standard
or
Enterprise
rack.
Notes:
1.
A
maximum
of
12
DPI
®
or
6
HD
DPI
PDUs
can
be
mounted
in
the
zero
U
space
of
the
42U
standard
rack.
A
maximum
of
16
DPI
or
8
HD
DPI
PDUs
can
be
mounted
in
the
zero
U
space
of
the
42U
Enterprise
rack.
2.
There
are
no
PDUs
available
that
support
the
plug
an
1800-W
power
supply
requires.
58
BladeCenter
T
Types
8720
and
8730:
Planning
and
Installation
Guide
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