Finished CAN Modul. This uses a M12-5 Male because the NMEA2000 T-Connectors are female and most cables are female to male, so this can be connected directly on a NMEA2000 network with no extra fuzz.
One of the nice details are the 5V DC/DC on right bottom, a SSR to switch on/off 120Ohm resistor and a 12Mbps CAN-FD that handle 5000V in 1 minute. This one has a full galvanic isolation. NMEA2000 is only 250Kbps, but I am eager to test FD capabilities as well. The only thing missing is the SPI Flash, but I won’t need that for now.
Here you see the cable attached to the modul and a T-connector – looking at my fingers you also get an idea about how small this moduls are. This is not my first CAN modul and to my knowledge so far this was an error free run, but lets get SW running before we conclude on that.
What I need to work on is a RS485 modul to match – it’s on my list of things to do.