Cisco Nexus 93120TX Installation Manual page 14

Overview
All of the fan and power supply modules must have the same direction of airflow. Otherwise, the switch
Note
can overheat and shut down. If you are installing a dual-directional power supply, that module will
automatically use the same airflow direction as the other modules in the switch.
If the switch has port-side intake airflow (burgundy coloring for fan modules), you must locate the ports
Caution
in the cold aisle. If the switch has port-side exhaust airflow (blue coloring for fan modules), you must
locate the ports in the hot aisle. If you locate the air intake in a hot aisle, the switch can overheat and shut
down.
Cisco Nexus 93120TX NX-OS Mode Switch Hardware Installation Guide
4
Overview