Planning How To Position The Chassis In The Rack; Installing The Chassis In A Two-Post Rack; Attaching Center-Mount Brackets To The Chassis - Cisco Nexus 93120TX Installation Manual

Nx-os mode switch hardware

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Installing the Chassis

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

• Green coloring on DC 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.

All fan and power supply modules in the same switch must operate with the same direction of airflow and

Note

the air intake portion of the switch must be located in a cold aisle.

Before you install the chassis, be sure that the rack is fully secured to the data center floor.

You must attach mounting brackets to the chassis before mounting the chassis.

You need to attach a right-angled bracket to each side of the chassis. This bracket centers the chassis and

secures it in place on a two-post rack.

If you are installing the chassis in a two-post rack, see

Note

on page 20

Attaching Front-Mount Brackets to the Chassis,

Cisco Nexus 93120TX NX-OS Mode Switch Hardware Installation Guide

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