Dual Power Supply

Dual Power Supply, including Dual DC (DDC) can provide power redundancy for devices, especially those that may operate in harsher environments. A secondary power supply provides redundancy for the device if one PSU is unplugged or in the event of a failure.

LED Power Status Indicator

The power LED indicator requires no configuration and will display the dual power status on the Console Manager device.

On a dual PSU device that has power connected to two PSUs, the LED power status indicator should be green at all times.

If a dual PSU device has power connected to one PSU (power supply unit), the LED power status indicator is colored amber indicating that the unit has no redundancy in the event of a power failure.

SNMP Alerts for Power-related Events

The System Voltage Range SNMP alert is triggered when there is a change in power status such as a system reboot or when the voltage on either power supply leaves or enters the configured range of the System Voltage alert.

SNMP Alert Configuration

The System Voltage Range SNMP alert is configured in the Configure > SNMP Alerts page, see System Alerts - Power.