Cisco 8540 User Guide - Page 23

Fan Assembly

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Chapter 1 Product Overview Figure 1-4 Internal Airflow Fan assembly Fan Assembly 32603 Fan Assembly The chassis fan assembly provides cooling air for the internal chassis components. The fans exhaust air from the left of the chassis. Fresh air enters from the right of the chassis. (See Figure 1-4.) If an individual fan in the fan assembly fails, the Fan LED turns red while the other fans continue to run. Sensors monitor the internal air temperatures. If the air temperature exceeds a desired threshold, the environmental monitor displays warning messages. Use environmental monitoring and reporting functions to maintain normal system operation by identifying and resolving adverse conditions before the system fails. Environmental monitoring functions constantly monitor the internal air temperature of the chassis. 78-6134-03 Catalyst 8540 Chassis Installation Guide 1-5

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1-5
Catalyst 8540 Chassis Installation Guide
78-6134-03
Chapter 1
Product Overview
Fan Assembly
Figure 1-4
Internal Airflow
Fan Assembly
The chassis fan assembly provides cooling air for the internal chassis
components. The fans exhaust air from the left of the chassis. Fresh air enters
from the right of the chassis. (See Figure 1-4.)
If an individual fan in the fan assembly fails, the Fan LED turns red while the
other fans continue to run. Sensors monitor the internal air temperatures. If the air
temperature exceeds a desired threshold, the environmental monitor displays
warning messages.
Use environmental monitoring and reporting functions to maintain normal system
operation by identifying and resolving adverse conditions before the system fails.
Environmental monitoring functions constantly monitor the internal air
temperature of the chassis.
32603
Fan
assembly