Installing A Power Supply; Power Supply Modules Overview - Cisco Catalyst 9300X Hardware Installation Manual

Installing a Power Supply

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Power Supply Modules Overview

The switch operates with either one or two active power supply modules. A switch that is part of a StackPower
stack operates with power that is supplied by other stack switches. Two power supply modules can be powered
up from two different phases.
You can use two AC modules or one module and blank cover. All power supply modules have internal fans.
All switches ship with a blank cover in the second power supply slot.
Power Supply Modules Overview, on page 81
Installation Guidelines, on page 86
Installing or Replacing an AC Power Supply, on page 87
Installing a DC Power Supply, on page 89
Finding the Power Supply Module Serial Number, on page 94
C H A P T E R
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
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