Phase 1: From the start of the power outage until the end of the specified waiting time

The power outage occurs.

The device detects the remaining UPS power.

The UPS power is greater than 15%.

Depending on your UPS settings, the network device powers off or switches to auto-protection mode after the specified waiting time elapses.

The UPS power is less than 15%.

Depending on your UPS settings, the device powers off or switches to auto-protection mode after the specified waiting time elapses.

The power is restored.

The device remains functional.

Phase 2: From the end of the specified waiting time until the UPS runs out of power

The power is not restored, and the device is in auto-protection mode.

The device stops all running services.

The power is not restored, and the device is powered off.

The device remains powered off.

The power is restored, and the device is in auto-protection mode.

The device remains powered off.

The power is restored, and the device is powered off.

The device remains powered off.

Phase 3: From the moment the UPS runs out power until the power is restored

The power is not restored, and the device is in auto-protection mode.

The device powers off.

The power is not restored, and the device is powered off.

The device remains powered off.

The power is restored.

The device applies the specified power recovery settings.