Remora - ethernet NVEM / EC300 / EC500 cnc board

so, after starting and turning off the latency error, if there is a connection to the network, then allow the machine to turn on (if there is no connection to the network, the button for machine on is blurred, when trying to jog, it throws out joint following errors and turns off the network) I will try on another linux to I'll try, I don't understand uart monitoring at all, I tried what I know because these cards on mach3 didn't work well.

Good evening everyone, I'm trying to read all the posts to study the remora because I'm interested in buying a nvem board, but there's a lot to read, I'm still on the way, I wanted to get ahead of the purchase of the board, what versions do the remora have? of plates so far, could you tell me? thank you in advance thank you very much