Cisco Nexus 93108TC-EX User Manual

Replacing Modules
• Replacing a Fan Module, on page 1
• Replacing a Power Supply Module, on page 2
Replacing a Fan Module
You can replace a fan module while the switch is operating so long as you perform the replacement within
one minute. If you cannot perform the replacement within one minute, leave the original fan module in the
chassis to maintain the designed airflow until you have the replacement fan module on hand and can perform
the replacement.
If you are replacing a module during operations, be sure that the replacement fan module has the correct
direction of airflow, which means that it has the same airflow direction as the other modules in the chassis.
Also, be sure that the airflow direction takes in air from a cold aisle and exhausts to a hot aisle. Otherwise,
the switch can overheat and shutdown.
If you are changing the airflow direction of all the modules in the chassis, you must shutdown the switch
before replacing all the fan and power supply modules with modules using the other airflow direction. During
operations, all of the modules must have the same direction of airflow.
Caution
Removing a Fan Module
Statement 263—Fan Warning
The fans might still be turning when you remove the fan assembly from the chassis. Keep fingers, screwdrivers,
and other objects away from the openings in the fan assembly's housing.
Warning
Step 1 On the fan module that you are removing, press the two sides of the fan module handle next to where it connects to the
fan module and pull on the handles enough to unseat it from its connectors.
Step 2 Holding the handle, pull the module out of the chassis.
Replacing Modules
1

Cisco Nexus 93108TC-EX Specifications

General

Brand	Cisco
Model	Nexus 93108TC-EX
Category	Switch
Language	English

Summary

Replacing a Fan Module

Removing a Fan Module

Instructions for removing a fan module from the chassis, including safety warnings.

Installing a Fan Module

Steps to install a new fan module into the chassis, ensuring correct airflow direction.

Replacing Power Supply Modules

Removing an AC Power Supply

Procedure for removing an AC power supply module, including safety precautions.

Removing an HVAC/HVDC Power Supply

Steps to remove an HVAC/HVDC power supply, involving disconnecting power and the module.

Removing a DC Power Supply

Procedure for removing a DC power supply module, including power disconnection.

Installing Power Supply Modules

Installing an AC Power Supply

Steps to install an AC power supply, ensuring compatibility and airflow direction.

Installing an HVAC/HVDC Power Supply

Procedure for installing an HVAC/HVDC power supply, noting airflow and power source requirements.

Installing a DC Power Supply

Steps to install a 48-V DC power supply, covering power, grounding, and airflow.

Wiring DC Power Supplies

Wiring a 48 V DC Electrical Connector Block

Instructions for wiring DC power cables to a connector block for a 48 V DC power supply.