and gps connections. The nema 0183 terminal circuit block is located under the helm. It is about 8inches long and has screws on both sides of the terminal block. Someone has labeled a couple of the screws like GPS, Nema but I have no idea what is considered positive or negative? Is one side of terminal block positive and one side negative? Can you put two or three connections on one screw to receive the same information for another radio, etc? The radio is a Standard Horizon GX2150. It has a nema ground (grn wire) a nema GPS input + (blue wire), nema dsc output + (gray wire), AIS data input + (brn wire) and I cannot figure out how to wire it up to the terminal block. Thanks
Hooking up VHF to Nema 0183 Here are a some pictures of the existing nema conf under the helm if this helps.
