Does your Switchblox Industrial provide passive PoE? What if the voltage is only 12V?
Yes SwitchBlox Industrial does that. It’s this type of passive PoE which is technically non-standard, but still pretty common to see.
To enable this feature on SwitchBlox Industrial requires soldering a 0R resistor to the board, however.
Then you just use the DIP switch to enable PoE injection on a port-by-port basis (see page 12 of the datasheet)