It's a good idea for a feature - many other out-of-band solutions have this. I think the issue comes mostly in that you would need to unplug the server to add (and remove...) some kind of relay-controlled power interrupt.
I would assume that most users of this are in a rack/datacenter/server environment and have switched PDUs they can remotely trigger power with, and it might make more sense to build in PDU management as a software feature over the network than try to reproduce the hardware functions.
Would be kind of cool to have a C14 input plug on the device and a C13 out beside it that goes to the server/device, then you can put an relayed interrupt inside it and also an ammeter clamp to measure power draw and detect drops or spikes in device power - for those systems that don't have built in IPMI already.
This thing https://www.audiophonics.fr/en/diy-kits-and-boards/audiophon... is a C13/C14 block with a 3.5mm control. AC power on if 12V minimal current applied via the 3.5mm, otherwise off. I haven't got around to it yet but my sketchy DIY idea is power-over-ethernet into a splitter into that. That'll power off the server when the switch port is turned off.
Strangely I haven't found a relay in the same packaging anywhere else.
And noone[0] whould allow to use that in a DC because this is now a high-voltage device what can be source of fire, shock and death. You need a certification for this kind of tech and it's not cheap.
[0] of course most of time it would just go under the radar, but you can find yourself in trouble, especially if the device malfunctions
I would assume that most users of this are in a rack/datacenter/server environment and have switched PDUs they can remotely trigger power with, and it might make more sense to build in PDU management as a software feature over the network than try to reproduce the hardware functions.
Would be kind of cool to have a C14 input plug on the device and a C13 out beside it that goes to the server/device, then you can put an relayed interrupt inside it and also an ammeter clamp to measure power draw and detect drops or spikes in device power - for those systems that don't have built in IPMI already.