Configuring Internal Power Supplies

Information About Internal Power Supplies

See the device installation guide for information about the power supplies.

How to Configure Internal Power Supplies

This section list the procedures to configure internal power supplies.

Configuring Internal Power Supply

You can use the power supply EXEC command to configure and manage the internal power supply on the device. The device does not support the no power supply EXEC command.

Follow these steps beginning in user EXEC mode:

Procedure

  Command or Action Purpose

Step 1

power supply switch_number slot {A | B } { off | on }

Example:

Device# power supply 1 slot A on

Sets the specified power supply to off or on by using one of these keywords:

  • A : Selects the power supply in slot A.

  • B : Selects power supply in slot B.

    Note

     

    Power supply slot B is the closest to the outer edge of the device.

  • off : Sets the power supply off.

  • on : Sets the power supply on.

By default, the device power supply is on.

Step 2

show environment power

Example:

Device# show environment power

Verifies your settings.

Monitoring Internal Power Supplies

Table 1. Show Commands for Power Supplies

Command

Purpose

show environment power [ all | switch switch_number ]

(Optional) Displays the status of the internal power supplies for the specified device.

The device keywords are available only on stacking-capable devices.

Configuration Examples for Internal Power Supplies

This example shows how to set the power supply in slot A to off:

Device# power supply 1 slot A off
Disabling Power supply A may result in a power loss to PoE devices and/or switches   
Device#
Jun 10 04:52:54.389: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered off 
Jun 10 04:52:56.717: %PLATFORM_ENV-1-FAN_NOT_PRESENT: Fan is not present
Device#

This example shows how to set the power supply in slot A to on:

Device# power supply 1 slot A on
Jun 10 04:54:39.600: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered on

This example shows the output of the show env power command:

Table 2. show env power Status Descriptions
Field Description

OK

The power supply is present and power is good.

Not Present

No power supply is installed.

No Input Power

The power supply is present but there is no input power.

Disabled

The power supply and input power are present, but power supply is switched off by CLI.

No Response

The power supply is not recognizable or is faulty.

Failure-Fan

The power supply fan is faulty.

Additional References for Internal Power Supplies

Related Documentation

Related Topic Document Title

For complete syntax and usage information for the commands used in this chapter.

Command Reference (Catalyst 9200 Series Switches)

For information about the power supplies.

Cisco Catalyst 9200 Series Switches Hardware Installation Guide

For information about PoE Port Priority and Load Shedding.

Configuring Interface Characteristics Chapter in Interface and Hardware Components Configuration Guide (Catalyst 9200 Series Switches).

Feature History for Internal Power Supplies

This table provides release and related information for features explained in this module.

These features are available on all releases subsequent to the one they were introduced in, unless noted otherwise.

Release

Feature

Feature Information

Cisco IOS XE Fuji 16.9.2

Internal Power Supplies

The switch operates with power supply modules which could be AC, DC or both. Refer the Hardware Installation Guide for more details on power supply units.

Use Cisco Feature Navigator to find information about platform and software image support. To access Cisco Feature Navigator, go to https://cfnng.cisco.com/.