Figure 28 on page 51 shows the AC power supply for a QFX5120-48Y switch.
Figure 28: AC Power Supply for a QFX5120-48Y Switch
AC Power Supply Airflow
Each power supply is cooled by its own internal cooling system.
The power supplies either have labels on the handles that indicate the direction of airflow or they have
color-coded handles with a fan icon. AIR IN (AFI) label or a blue-colored handle indicates back-to-front
airflow while AIR OUT (AFO) label or a gold-colored handle indicates front-to-back airflow. See
Figure 29 on page 51.
Figure 29: Power Supply Handle Detail
1—AIR IN (AFI) label
Be sure to use the correct power supply for your chassis product SKU (see ).
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