Cisco 7000 Series Hardware Installation And Maintenance page 62

General Precautions
Follow
Use
environmental
warnings
occurrences
identify
WARNING
OR
%ENVM-2---FAN
Refer
Maintain
through
from
ambient
temperatures
Do
Follow
can
Ensure
secure
can
current present
integrity
Ventilation
Equipment-Rack
If you
following
precautions
There
inner
Enclosed
possible
negative
necessary
The
Equipment
the
the top of the
For
Environmental
these
general precautions
show command
environment
the
monitor
continuously
for
high temperature
If
warning messages
and
the cause correct
Fan has reached
Fan array has
Environmental
to Monitoring
inches of clearance
at least
and
the exhaust
inlet
ports
the exhaust of other equipment
air
alone
room
temperature
the router
not place
directly
ESD
prevention procedures
immediate
or intermittent
cause
the chassis
cover
that
The
fans
direct cooling
from
the flow
redirect air away
on
the backplane
of the system
the router
plan to install in
Equipment Racks
the guidelines
in
must be two
inches
at least
rack
wall of an enclosed
must have
racks
adequate
too powerful
ventilation that
system is
pressure around chassis
the
the chassis with
operate
use of an enclosed
correct baffles in
bottom
the of
near
ports of above
inlet
equipment
rack
functional of the environmental
description
and
Monitoring Reporting
when
equipment
planning
your
check
regularly to
checks the
chassis
interior
maximum
minimum
and
and
are displayed such the following
as
the
problem
CRITICAL level
shutdown
in
failed
and Functions
Reporting
each of
on
side the
the of the chassis
Keep sides
Remember
that electrical
be
cool
may
not
to
adequate
on the
floor or in area
any
avoid
damage equipment
to to
failure
equipment
IPs and any
cover
backplane
air
the chassis interior
throughout
active
components Also
and must
chassis cover
the
an can
equipment rack you
in this
chapter
between
of clearance each
2-2
See
Figure
exhaust
ventilation or an
closed rack
in
and
the air
redirecting
the rack
open
rack
can ensure
to
help
rack excessive
may generate
leading to overtemperature
and
monitor
Functions
in Chapter
and
locations connections
The
the status
internal
system
environment
it
provides
and creates reports
voltages
immediate
take
minutes
in
Chapter
chassis allow
air to
to
cooling
from
obstructions
free
equipment
generates
equipment to
acceptable
tends
that dust
to collect
Damage from
static
blank IP
are in
fillers place
loose panel or empty
cover
the backplane shields
be maintain the
in to
place
conditions
avoidovertemperature
addition the following
in to
and
side of the chassis the
whenever
rack
fan
use an
open
also prevent
may cooling
by
from
vents
away the inlet
cool reaches the chassis
that air
drawn upward
heat
that
is
conditions in devices
at or
the refer to
levels
status
Preparing
Site
Requirements
on
any
action
to
flow
and away
heat and
operating
discharge
and
IP
slot
the high
EMI
by
or
side
creating
If
and
into
near
for Installation 2-11