Quote Originally Posted by SCOTTY1094 View Post
this nema 2000 is just a cable hooked between the two?
In general, though it is more complicated than that. You need 2 network Ts, 2 terminating resistors a cable to connect the Ts and then short cables to connect each unit to the network.

You can get most of it as a Lowrance NMEA 2000 starter kit, but you'll need an extra short cable to connect the second unit.