As Jesper said, from O side, that will land on same port, but from experience, make sure you "have" that data beforehand (instruments, et al) in the NMEA stream, some equipment
with nmea ins and outs just dont deliver convertion from propietary protocols (Seatalk, Navbus, Network, etc.) . Example at hand: Raymarine
autopilots NO (except HDG and RR-rudder reference), Raymarine
plotters YES. good luck.