f.
Turn
the
leveler
foot
assembly
down
until
it
contacts
the
plate,
and
then
level
the
rack
using
the
four
leveler
feet.
g.
Lock
the
leveler
feet
by
tightening
the
lock
nut.
h.
Tighten
the
four
rack-mounting
bolts
into
the
plate.
Install
the
Frame
Ground
Straps
Attention:
It
is
recommended
that
all
pSeries
655
systems
installed
in
7040
Model
W42
racks,
are
grounded.
However,
two
frame
ground
straps
are
required
on
a
rack
for
a
switched
clustered
environment
(for
example,
when
in
a
scalable
parallel
(SP)
Switch2
connected
clustered
environment).
One
frame
ground
strap
must
be
installed
at
the
front
bottom
left
side
of
the
rack,
and
the
second
frame
ground
strap
must
be
installed
at
the
rear
bottom
left
side
of
the
rack.
Signal
Integrity
System
reliability
can
be
adversely
affected
by
the
presence
of
transient
electrical
noise
that
may
be
conducted
on
power,
signal,
and
control
cables.
To
conduct
high-frequency-electrical
noise
away
from
the
system,
the
ground
path
must
be
as
short
as
possible.
All
systems
are
provided
with
ground
straps
that
are
intended
for
use
with
stringer/stanchion-type
raised
floors
(or
other
grounded
types).
The
ground
straps
are
required
if
your
servers
are
connected
to
a
9076
SP
Switch2
clustered
environment,
and
it
is
recommended
for
all
other
configurations.
Raised-Floor
Environments
Raised-floor
environments
can
be
low-raised
or
high-raised
floors.
For
additional
information
on
site
planning
for
the
system,
refer
to
pSeries
655
information
in
Chapter
2
of
the
Site
and
Hardware
Planning
Information
.
The
frame
ground
straps
provided
with
the
system
are
intended
for
use
with
a
grounded
raised
floor.
If
the
installation
does
not
use
a
grounded
raised
floor,
see
the
information
about
alternate
grounding
means
in
the
pSeries
655
information
in
Chapter
2
of
the
Site
and
Hardware
Planning
Information
.
Attention:
If
the
site
raised
floor
has
pedestals
that
are
not
grounded,
ask
the
customer
to
consult
with
a
certified
electrical
contractor
to
have
the
floor
pedestals
grounded.
If
the
installation
site
does
not
have
a
grounded
raised
floor,
refer
the
customer
to
the
pSeries
655
information
in
Chapter
2
of
the
Site
and
Hardware
Planning
Information
for
an
alternate
solution.
Note:
Two
frame
ground
straps
are
required
at
the
rear
of
the
rack.
Both
frame
ground
straps
must
be
installed
on
the
frame
of
the
rack
and
at
the
bottom
of
the
rack.
To
install
the
frame
ground
straps
on
a
rack
in
a
grounded
raised-floor
environment
perform
the
following
steps:
1.
Ensure
that
the
raised
floor
is
grounded.
A
grounded-raised
floor
has
pedestals
that
are
connected
with
ground
wire
so
an
electrical
ground
can
be
installed
from
equipment
to
pedestals,
and
then
to
an
earth
ground.
If
the
raised
floor
is
not
grounded,
stop.
Ask
the
customer
to
arrange
to
have
the
floor
grounded,
and
to
see
pSeries
655
information
in
Chapter
2
of
the
Site
and
Hardware
Planning
Information
.
If
the
raised-floor
is
grounded,
go
to
the
next
step.
2.
If
the
rear
door
on
the
rack
is
not
open,
open
the
door.
3.
To
install
a
frame
ground
strap
at
the
rear
bottom
left
side
of
the
rack,
do
the
following:
a.
At
the
rear
bottom
left
side
of
the
rack,
attach
the
lug
end
of
the
ground
strap
(part
number
44P2814)
to
the
ground
connection
symbol
on
the
rack
using
a
screw
(part
number
2665528)
and
a
lockwasher
(part
number
1623347,
if
supplied).
Tighten
the
screw
using
an
8-mm
nutdriver.
The
ground
strap
can
run
alongside
the
rack
power
cord
to
exit
the
frame.
152
Eserver
pSeries
655
Installation
Guide
Summary of Contents for pseries 655
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Page 125: ...1 Metal EMC Shield 2 Adapter Bracket Chapter 4 Installation and Removal Procedures 109...
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