Cisco AGS+, Hardware Installation And Maintenance

Page: 52 / 146

Environmental
Reporting
Features
Caution
The
chassis
is completely
shut
down
if
the
internal temperature
reaches
the
43C
threshold
The
internal
temperature
of the system exceeds
the external
ambient
temperature
by
approximately
3C
The
system
cannot
be
restarted until
the
internal air temperature
returns
to
an ambient
level
and the
power
switch
is
toggled
turned
off
and then
on
if
the
shutdown was
due
to voltage
problem
toggling
the switch may not
be
sufficient to bring the system
back
up
and
larger
problem
may
be
indicated
Temperature
and Airflow Troubleshooting Guidelines
Consider the following example-system conditions
Chassis
is
shut
down
No LEDs
are
lit
No
processing
activity
is occurring
Blower
is still
running
Last
message
displayed
on the console
screen indicates
an
air
temperature
problem an
airflow
problem or
voltage
problem
Step
Determine
if
the
error
message
indicates
an air
temperature
or airflow problem If
it is
air
temperature
go
to Step
If
it
is airflow
go to Step
Step
For
suspected air temperature
problems answer
the following
questions
Is
the ambient room
temperature
less
than
40C
at all
times
Is
the temperature
of the air
going
into
the
air
intake vent
less
than
40C
Is
there sufficient airflow through the
chassis
Is
there
sufficient
airflow within the rack or wiring
closet
Is
the front access panel of the chassis in place
Is
the
air
intake vent of the chassis isolated
from
the exhaust
air
of
all
other chassis
The
appropriate response for
the questions
in Step
should
beyes
If
not correct the
problem or contact customer service representative
for
additional assistance
Step
For
suspected aiiflow
problems answer the following
questions
Is
there
insufficient air going through
the chassis
Is
there any blockage
in or around
the
air
intake
vent
Is there
any blockage
in or around
the
air
exhaust
vent
Are
there multiple
units installed in this
rack configuration
If
the answer
is
yes will
turning off
some
or
all
of
the
other chassis if
possible
allow the chassis
to
continue
running
Is there an air
pressure
differential
between
the
air
intake
and
exhaust
vents
Is the
exhaust
air
of
the
chassis
recirculating
to
its
own
air
intake port
The
appropriate response
for
the questions
in Step
should be
no
If
not and
if
problem
cannot
be
resolved using these guidelines contact customer service representative for
additional assistance
To
help determine
why the
ENVM
told the system to
shut
down
use the
show
environment
last
command
Refer
to
the section
Displaying the
Reason
for
the Last Environmental
Shutdown
Troubleshooting the
Initial
Hardware
Configuration
4-5