Power-Supply Dual - Cisco Catalyst 2950 Command Reference Manual

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power-supply dual

Use the power-supply dual global configuration command to set the dual power-supply mode of

operation. Use the no form of this command to return to the default single power-supply mode.

Syntax Description

This command has no arguments or keywords.

By default, the system operates in single-power mode.

Command Modes

Global configuration

Command History

12.1(12c)EA1

Usage Guidelines

The Catalyst 2955 switch has two DC power inputs. When the switch is connected to a second DC input

and put in dual power-supply mode, the second power supply provides power to the switch if the primary

supply fails.

When the switch is in dual power-supply mode, you can use the alarm-facility power supply global

configuration command to set alarm options and to monitor for a missing or failed primary power supply.

This example shows how to set the switch in a dual power-supply mode:

Switch(config)# power-supply dual

Related Commands

alarm facility power-supply

show alarm settings

Catalyst 2950 and Catalyst 2955 Switch Command Reference

power-supply dual

no power-supply dual

Modification

This command was introduced.

Sets the switch to monitor for a missing or failed power supply and

sets the alarm options.

Displays environmental alarm settings and options.

Catalyst 2955 Alarm Commands

Catalyst 2955