Is there anything that needs to be done or configured to get the Rock Pi S PoE HAT working, or is it just a plug and play kind of arrangement?
The Wiki suggests that it should 'just work"
" Software support - The PoE doesn’t require software to power and run."
I have just taken delivery of a Pi S and the HAT, connected them together, attached the unit to a PoE switch, and the board doesn’t power up. No lights no the Rock Pi, no lights (PoE or data) on the switch ports.
I’ve tested multiple ethernet cables and ports on the switch, and confirmed that those cables and ports successfully power up other PoE equipment, so it looks like something specific to the HAT.