Given the image below, what would be the best place to place the PHY and Magnetics, (connectors can move)?
I appreciate that Ethernet best design practices are not being followed here, but given this scenario how I can I maximise chances of successful ethernet comms?
Key Points:
- Connectors can move (wire to board is not RJ45)
- Space constrained by outers all around PCBs
- Centre board intended as isolation between top and bottom board (Isolate power supplies and digital isolation etc for comms, level shifters etc)
- Boards 150x150mm
- Ethernet 10/100 Base-t
- Wire to board connector does not include magnetics
PCB stack with ethernet entering in the wire to board connector on top board: