Planning How To Position The Chassis In The Rack; Installing The Chassis In A Four-Post Rack - Cisco Nexus 9348D-GX2A Hardware Installation Manual

Installing the Chassis
• fan modules (all fan and power supply modules must have the same airflow direction)
• Switch accessory kit
Step 2 Check the contents of the box for damage.
Step 3
If you notice any discrepancies or damage, send the following information to your customer service representative by
email:
• Invoice number of the shipper (see the packing slip)
• Model and serial number of the missing or damaged unit
• Description of the problem and how it affects the installation

Planning How to Position the Chassis in the Rack

The switch is designed so that you can have coolant air flow through the switch in one of the two following
directions:
• Enter the port side and exhaust out the power supply side (port-side intake airflow)
• Enter the power supply side and exhaust out the port side (port-side exhaust airflow)
For port-side intake airflow, the switch must have port-side intake fan and AC power supply modules with
one or more of the following colorings:
• Burgundy coloring on fan modules and AC power supplies
For port-side exhaust airflow, the switch must have port-side exhaust fan and AC power supply modules with
one or more of the following colorings:
• Blue coloring on fan modules and AC power supplies
You can plan the positioning of the switch so that its ports are located close to ports on connected devices or
so that the fan and power supply modules are conveniently located in a maintenance aisle, and then order the
modules that move coolant air in the appropriate direction from the cold aisle to the hot aisle.
Note

Installing the Chassis in a Four-Post Rack

Before you install the chassis, be sure that the rack is fully secured to the data center floor.
All fan and power supply modules in the same switch must operate with the same direction of airflow
and the air intake portion of the switch must be located in a cold aisle.
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
Planning How to Position the Chassis in the Rack
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