Cisco Systems 2000 Removing and Installing the Fan Tray

4-21

Cisco Nexus 2000 Series Hardware Installation Guide

Chapter4 Installing a Cisco Nexus Fabric Extender

Removing and Installing Components

Note If you purchased this product through a Cisco reseller, contact the reseller directly for technical support.

If you purchased this product directly from Cisco, contact Cisco Technical Support at this URL:

http://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html.

Removing and Installing the Fan Tray

The Cisco Nexus 2200 Series FEXs, and Cisco Nexus 2148T FEX, use a fan tray. The fan tray is

designed to be removed and replaced while the system is operating without causing an electrical hazard

or damage to the system, if the replacement is performed within 1 minute.

Caution Be sure that the fan tray that you are installing has the same airflow direction as the other fan tray and

power supply modules in the same chassis. Either all of the modules must have port-side exhaust airflow

(a blue or no color on the front of the module) or all of the modules must have port-side intake airflow

(red or black color on the front of the module). If the modules have different airflow directions in the

same chassis, an error condition occurs, the switch can over heat, and the switch can shut down.

Note If you power up a FEX with power supply and fan tray modules that have different directions of airflow,

an error condition will occur and the switch can over heat and shut down. With this error condition, you

must shut down the switch to replace the modules that do not take in cool air from the cold aisle. After

you ensure that all of the modules have the same direction of airflow and take in cooling air from the

cold aisle, you can power up the FEX.

This section includes the following topics:

•Removing a Fan Tray, page4-21

•Installing a Fan Tray, page4-22

Warning

When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the

fan blades completely stop before you finish removing the fan tray.

Statement 258

To remove a fan tray, follow these steps:

Step1 Loosen the captive screws on the fan tray by turning them counterclockwise, using a flat-blade or

number 2 Phillips screwdriver if required.

Step2 Grasp the captive screws of the fan tray and pull it outward.

Step3 Pull the fan tray clear of the chassis and set it on an antistatic surface or repack it in packing materials.