Originally Posted by swh
Yes it is 777/A330/A340. It is not Ethernet, it is not simplex, it is time division multiplex (multiple source, multiple sink), with a limit of 128 devices per bus. Inductive coupling is also used by design.
Pardon me, SLF but maybe this can be interesting (?).
I've watched multiple reboots of a 747 IFE on a flight and it used a Windows CE OS and an xmodem protocol (which should be half-duplex?) at 115K baud rate.
There also were mentions of memory addresses.
Is this what you are talking about?