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Installing a Fan Module
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Fan Modules Overview
All the switches except C9300LM-48T-4Y have three internal hot-swappable fans. 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. A switch with one or more fans failed or removed will operate with fans at a faster speed,
producing increased sound.
Danger
Figure 59: Fan Module
1
Fan Modules Overview , on page 97
Installation Guidelines, on page 98
Installing a Fan Module, on page 98
Finding the Fan Module Serial Number, on page 99
Sharp edges on the fan module can cause serious injury. Keep fingers clear.
Fan LED
C H A P T E R
3
Retainer clip
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
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97
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- Front Panel Components
- 10/100/1000 Ports
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