I live in a house that has CAT 5 cable in the walls running to wall plates in various rooms.
Would it be possible to remove the existing regular switch, replace it with a powered POE switch, and then plug in a POE device into one of the wall plates?
Also, for the non-POE devices already plugged into wall plates, would they be okay?
I’m trying to wrap my head around the interoperability of POE and non-POE and struggling.
Yes, the switch should detect that its not a POE device and not send power. I’m not sure how it would work if the port is wired incorrectly though, so worth checking if you have access to a detector. Electricians are notoriously bad at wiring Ethernet correctly.
Bear in mind, the POE switch will generate more heat, so if its in a closet with no airflow, it might overheat.
Grilled a Brother printer mainboard thinking that, so don’t be too sure of that autodetect.