DANGER
Electrical
current
from
power,
telephone,
and
communication
cables
is
hazardous.
To
avoid
a
shock
hazard:
v
Do
not
connect
or
disconnect
any
cables
or
perform
installation,
maintenance,
or
reconfiguration
of
this
product
during
an
electrical
storm.
v
Connect
all
power
cords
to
a
properly
wired
and
grounded
electrical
outlet.
v
Connect
to
properly
wired
outlets
any
equipment
that
will
be
attached
to
this
product.
v
When
possible,
use
one
hand
only
to
connect
or
disconnect
signal
cables.
v
Never
turn
on
any
equipment
when
there
is
evidence
of
fire,
water,
or
structural
damage.
v
Disconnect
the
attached
power
cords,
telecommunications
systems,
networks,
and
modems
before
you
open
the
device
covers,
unless
instructed
otherwise
in
the
installation
and
configuration
procedures.
v
Connect
and
disconnect
cables
as
described
in
the
following
table
when
installing,
moving,
or
opening
covers
on
this
product
or
attached
devices.
To
Connect:
To
Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to power source.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from power
source.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
9. Turn off the dc power supply switch, set disconnect devices to the OFF
position, and then unplug the power cord from the failed dc power supply and
fan unit.
Attention:
a. IBM recommends that you use the disconnect device to remove power
before disconnecting the dc power cord.
b. The power control button on the device and the power switch power supply
do not turn off the electrical current supplied to the device. The device
might also have more than one power cord. To remove all electrical current
from the device, ensure that all power cords are disconnected from the
power source.
10. Squeeze the latch and pull the lever open 90° (so that the lever is horizontal)
to release the dc power supply and fan unit from the latch. The latch is a coral
colored tab on the lever.
11. Slowly pull the lever away from the chassis to remove the dc power supply and
fan unit, as shown in Figure 55 on page 114.
Chapter 5. Installing and replacing components
113
Summary of Contents for DS4000 EXP810
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