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Installing the Fan
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Fan Module Overview
Depending on the switch model, three or five internal hot-swappable are available. 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.
Figure 67: Fan Module for WS-C3850 Switches
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2
Note
The WS-C3850 switches require three fans for proper cooling.
OL-26779-05
Fan Module Overview , on page 83
Installation Guidelines, on page 84
Installing a Fan Module, on page 85
Finding the Fan Module Serial Number, on page 86
Fan LED
Exhaust vent
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C H A P T E R
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Catalyst 3850 Switch Hardware Installation Guide
Retainer clip
Extraction handles
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