Perform
the
following
safety
checks.
1.
Do
a
controlled
system
shutdown.
Refer
to
the
instructions
in
the
7214
Model
1U2
Storage
Device
Enclosure
Setup
and
Operator
Guide.
2.
Turn
off
the
power
to
all
external
devices
connected
to
the
system
unit.
3.
Turn
off
the
power
to
the
7214
Storage
Enclosure(
1
in
Figure
20
on
page
47).
4.
Turn
off
the
power
to
the
system
unit
2
.
DANGER
An
electrical
outlet
that
is
not
correctly
wired
could
place
hazardous
voltage
on
metal
parts
of
the
system
or
the
products
that
attach
to
the
system.
It
is
the
customer’s
responsibility
to
ensure
that
the
outlet
is
correctly
wired
and
grounded
to
prevent
an
electrical
shock.
(RSFTD201)
5.
Unplug
the
7214
Storage
Enclosure
external
power
cable
from
the
electrical
outlet.
6.
Unplug
the
system
unit
power
cable
from
the
electrical
outlet.
7.
Check
the
7214
Storage
Enclosure
external
power
cable
for
damage.
DANGER
To
prevent
a
possible
electrical
shock
from
touching
two
surfaces
with
different
electrical
grounds,
use
one
hand,
when
possible,
to
connect
or
disconnect
signal
cables.
(RSFTD004)
DANGER
To
prevent
a
possible
electrical
shock
when
adding
or
removing
any
devices
to
or
from
the
system,
ensure
that
the
power
cords
for
those
devices
are
unplugged
before
the
signal
cables
are
connected
or
disconnected.
If
possible,
disconnect
all
power
cords
from
the
existing
system
before
you
add
or
remove
a
device.
(RSFTD203)
8.
Check
the
external
SAS
(signal)
cable
3
for
damage.
9.
Check
the
covers
for
sharp
edges,
damage,
or
alterations
that
expose
the
internal
parts
of
the
7214
Storage
Enclosure.
10.
Check
the
covers
for
proper
fit.
They
should
be
in
place
and
secure.
11.
Check
the
product
label
at
the
back
of
the
7214
Storage
Enclosure
to
make
sure
it
matches
the
voltage
at
your
outlet.
DANGER
Dangerous
voltage
being
measured.
(RSFTD005)
12.
Check
the
voltage
level
at
the
outlet
and
also
check
for
proper
grounding.
13.
With
the
external
power
cable
(
1
in
Figure
21
on
page
49)
connected
to
the
7214
Storage
Enclosure,
check
to
ensure
1.0
ohm
or
less
resistance
between
the
ground
lug
on
the
external
power
cable
plug
and
the
metal
frame.
48
7214
Storage
Device
Enclosure
Service
Guide
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