Raspberry Pi Shutdown via ethernet command

I have a CyberPower BR850ELCD UPS which is connected to my QNAP TS453Be NAS via USB and has the capability of notifying other IP addresses when there has been a power failure.

Is it possible to notify my Raspberry Pi and Tinkerboard, by their IP addresses, when such a command has been sent by the NAS to then shut them down in the event of a power failure?

Thanks…

I wonder if this would help
http://www.apcupsd.org/

About

Apcupsd can be used for power mangement and controlling most of APC’s UPS models on Unix and Windows machines. Apcupsd works with most of APC’s Smart-UPS models as well as most simple signalling models such a Back-UPS, and BackUPS-Office. During a power failure, apcupsd will inform the users about the power failure and that a shutdown may occur. If power is not restored, a system shutdown will follow when the battery is exhausted, a timeout (seconds) expires, or runtime expires based on internal APC calculations determined by power consumption rates. Apcupsd is licensed under the GPL version 2.

https://sourceforge.net/projects/apcupsd/

Perhaps the Network Utility of your UPS
https://www.cyberpowersystems.com/product/software/power-device-network-utility/

Found this too
https://www.howtogeek.com/183102/how-to-gracefully-shutdown-your-pc-with-a-ups-unit-and-why-you-should/
This too
https://www.reddit.com/r/homelab/comments/4bfv16/cyberpower_ups_and_shutting_down_esxi_and_unraid/

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