ESP32-POE power options

[frankdownunder]

The webpage says
when you program the board via the micro USB connector the Ethernet cable should be disconnected!

Does this also apply if the ethernet cable is non-powered? 

Since I do not (yet) have a POE supply, I was hoping I could leave my USB connected and plug in my non-powered ethenet cable. Can anyone confirm if that is OK or not?

[LubOlimex]

As long as you have only one power source attached to the board it is ok. USB-ISO or other protector is  required when having two power sources attached to the board at the same time.

[des]

@LubOlimex I am not sure if this helps. I use an Industrial PoE Switch to power the POE node and use the Olimex ISO USB isolator to see the serial output and often times the node resets itself which I assume is 2 different power sources, one from the USB and other from PoE switch itself.

[LubOlimex]

The reset that you mention is not related to the power sources. If there is failure when there are two power sources applied ESP32-PoE will NOT reset but either your ESP32-PoE, your USB-ISO, or your computer would get damaged.

[ToHo]

I want to use the ESP32-PoE in an enviroment where the board will be powered from a host board (through the EXT connectors)... so actually i don't need the PoE functionality.
Is it possible to easily disable the PoE function? I cannot guarantee that the ethernet switch will always be without PoE.

[LubOlimex]

I don't see any good way to do it. The bad way is to cut 4 pins from the Si3402 (or cut two pins and open two SMT jumpers). My advice is to ensure that your switch has no PoE enabled.