Cisco 7000 Series Hardware Installation And Maintenance page 201

Power
and
Replacing
Installing
Warning
20 pounds
Figure
Tools
Required
You
will
remove and
the
DC-input power supply you
cable
Power
Supplies
Installing
At
initial
location
installing
duplicated
Supplies
procedure
Power
Removing
Supplies
Redundant
immediately
Always
contamination
Follow
Step
Step
7000 Hardware
5-56 Cisco
Supplies
injury use both
To
prevent
Power
5-17
Supply InterlockAC-Input
need number
Phillips
and
install filler
plates
will
the bracket beneath the terminal
to
will
install
installation you
avoid an extra
to moving
the are included
power supplies
here For power-supply
in the chapter
Installing
follows
that
power
supplies support
full
to
ramps up supply
filler
plate over an
install
remove
these
power supply
to
steps
On
be
the
to
power supply
See 5-17
the unit
Figure
Disconnect the cable
power
and Maintenance
Installation
hands and
remove
to install
Power
Supply
or 1/4-inch screwdriver
flat-blade
loosen the captive
to or tighten
need two
4-inch nylon cable
block
the
after
power supplies you
20 40 pounds around
or while
part of the
initial installation
as
refer
procedures
installation
Router
For power-supply removal procedures
the
OIR
If you remove one power supply
maintain
the system
to to
power
empty power bay
to
supply
OFF
removed switch The
turn the
from
the
power source
Each
power supplies weighs
Shown
whichever
is appropriate
on the
screw supply
power
attach the DC-input power
ties to
the chassis
in
its permanent
place
the chassis
up Steps
setting
and
are not
procedure
Power
the section
to Inserting
refer
second
the
supply
uninterrupted operation
from
the connectors
protect
interlock tab
will retract
to
For
for
the
to
into