Table 16: Fan Module in ACX5400 Routers
Power
Supplies
Direction of
Airflow in the
Fan Module
Color of
Fan
Module
Label on
the Fan
Module
HandleAirflow DiagramFan Module
You must
install PSMs
that have
AIR IN labels
only in those
routers in
which the
fan modules
have AIR IN
labels.
Air is pulled
through the fan
modules and
toward the front of
the chassis, from
where it is
exhausted out of
the chassis.
Juniper
Azure
Blue
AIR INFigure 33 on page 50ACX5448-FAN-AFI
ACX5448-D-FAN-AFI
You must
install PSMs
that have
AIR OUT
labels only in
those routers
in which the
fan modules
have AIR
OUT labels.
Air is pulled
through the front
of the chassis
toward the fan
modules, from
where it is
exhausted out of
the chassis.
Juniper
Gold
AIR OUTFigure 34 on page 50ACX5448-FAN-AFO
ACX5448-D-FAN-AFO
In data center deployments, position the router in such a manner that the AIR IN labels on router
components are next to the cold aisle, and AIR OUT labels on router components are next to the hot aisle.
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