The FMU has a TJA110x two wire automotive ethernet (100BASE-T1) transceiver . However, this is not yet supported by PX4. Adding driver support to PX4 and implementing the protocol might become a HoverGames task/challenge in the future.
Pin
Signal
Voltage
1
ENET N
+3.3V
2
ENET P
+3.3V
Rev. B (and older boards) are not supported anymore. This information is left for reference.