Installing The Fan; Overview - Cisco Catalyst 3850 Hardware Installation Manual

Installing the Fan

This chapter describes how to install a fan module.
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Overview

The switch has three fan modules. Fan modules are hot-swappable. A powered switch should always
have more than one operational fan. The switch can operate with two operational fans and one
nonfunctional fan, but the failed fan should be replaced as soon as possible to avoid a service
interruption due to a second fan fault.
Three fans are required for proper cooling.
Note
OL-26779-02
Overview, page 5-1
Fan Module Installation, page 5-2
Finding the Fan Module Serial Number, page 5-3
C H A P T E R
Catalyst 3850 Switch Hardware Installation Guide
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