Cisco Nexus 93120TX Installation Manual page 47

Nx-os mode switch hardware

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Replacing Modules

Step 2

Unscrew the captive screw that secures the fan module to the chassis (see the following figure).

Figure 12: Removing a Fan Module

Loosen the captive screw so that it is no longer in

contact with the chassis.

Step 3

Pull the fan module handle to slide the module out of the chassis.

To prevent electrostatic discharge (ESD) damage to the module electronics, do not touch the electrical

Caution

connectors on the back side of the module. Also, to prevent any damage to the electrical connectors, prevent

them touching anything that can bend or break them.

Step 4

Place the removed module on an antistatic surface or in an antistatic bag. If possible, repack the module in its packing

materials for safe shipping or storage.

Step 5

Follow these steps to replace the missing fan module within two minutes to avoid a shutdown.

a) Remove the replacement fan module from its packing materials and place it on an antistatic surface.

Hold the module by its handle and do not touch the electrical connectors on its backside. Also, to protect the electrical

connectors, avoid letting them come in contact with anything other than the electrical connectors inside the chassis.

b) Verify that you have the right fan module for the chassis. The correct fan module has one of the following part

numbers:

• N9K-C9300-FAN3-B (port-side exhaust airflow direction and a blue stripe)

• N9K-C9300-FAN3 (port-side intake airflow direction and a burgundy stripe)

Be sure that the airflow direction of the new fan module matches the airflow direction of the other fan and

Note

AC power supply modules already installed in the chassis. Port-side intake airflow is indicated with burgundy

coloring (DC power supplies with port-side intake airflow have green coloring), and port-side exhaust airflow

is indicated with blue coloring.

c) Position the fan module in front of the open fan slot (be sure that the backside of the module with the electrical

connectors is positioned to enter the slot first) and slide the module all the way into the chassis until its front side

comes in contact with the chassis. For the last 0.2 inches (0.5 cm), carefully mount the module onto the chassis

Holding the handle on the fan module, slide it out of

the chassis.

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

Replacing a Fan Module During Operations

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