Figure 13: Back-to-Front Airflow Through a QFX5120-32C Switch Chassis
Figure 14 on page 35 shows the back-to-front airflow through the QFX5120-48Y switch chassis.
Figure 14: Back-to-Front Airflow Through QFX5120-48Y Switch Chassis
You must install only power supplies that have AIR IN (AFI) labels in switches in which the fan modules
have AIR IN (AFI) labels.
The labels on the power supplies and fan modules must match the labels on the switch chassis.
Mixing components with AIR IN (AFI) and AIR OUT (AFO) labels in the same chassis hampers the
performance of the cooling system of the switch and leads to overheating of the chassis.
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