Juniper ACX5448-D Hardware Manual page 48

Table 16: Fan Module in ACX5400 Routers
Fan Module
ACX5448-FAN-AFI
ACX5448-D-FAN-AFI
ACX5448-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.
Airflow Diagram
Figure 33 on page 50
Figure 34 on page 50
Label on
the Fan Color of Direction of
Module Fan Airflow in the
Handle Module Fan Module
AIR IN Juniper Air is pulled
Azure through the fan
Blue modules and
toward the front of
the chassis, from
where it is
exhausted out of
the chassis.
AIR OUT Juniper Air is pulled
Gold through the front
of the chassis
toward the fan
modules, from
where it is
exhausted out of
the chassis.
49
Power
Supplies
You must
install PSMs
that have
AIR IN labels
only in those
routers in
which the
fan modules
have AIR IN
labels.
You must
install PSMs
that have
AIR OUT
labels only in
those routers
in which the
fan modules
have AIR
OUT labels.