26
G8264 Installation Guide
Rear Panel
Fans
For
cooling,
the
rear
panel
of
the
G8264
has
four
bays
for
hot
‐
swap
fan
modules.
Four
fan
modules
are
required
for
redundancy.
When
four
fan
modules
are
used,
if
there
is
a
failure
of
one
of
the
fans,
the
switch
reports
the
condition,
the
other
fans
continue
to
run,
and
the
switch
continues
to
operate
normally.
You
can
replace
one
failed
hot
‐
swap
fan
module
while
the
switch
is
operating.
If
a
second
fan
fails,
the
switch
reports
the
condition
and
shuts
down
to
prevent
overheating.
Compatible
fan
options
are
listed
in
the
Fan
operation
and
internal
temperatures
are
monitored.
If
the
air
temperature
exceeds
a
desired
threshold,
the
environmental
monitor
displays
warnings.
Note:
If
a
fan
fails,
the
maximum
operating
temperature
drops
from
+40°C
(104°F)
to
+35°C
(95°F).
Fan LEDs
If
there
is
a
failure
of
one
or
more
fans,
the
front
panel
Fan
LED
flashes.
Additional
Fan
LED
indicators
are
located
on
the
rear
panel
of
the
switch,
on
the
individual
fan
modules.
The
following
table
describes
the
fan
module
LED
behavior.
Table 7.
Fan module status LED behavior
LED State
Functional Meaning
On
Fan
is
operational
Off
Fan
module
has
no
power.
Flashing
Fan
speed
has
failed.
Replace
the
fan
module.
Summary of Contents for RackSwitch G8264
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