I have carefully studied Ben's exercises in connecting different brands of instruments to the same NMEA2000 network and eventually took the big step to try it myself. (The next big step was to sign on to this forum and write my first post)
I have a SimNet network on my boat with a Maretron DST100, a Simrad wind vane, a compass sensor and a GPS antenna connected to a couple of IS20 instruments. Now I wish to add a GMI 10 to this setup.
I have a NMEA2000- to-SimNet adapter that I used to plug into the GMI 10 and a T-joiner in the network. It has an NMEA2000 plug at one end and a SimNet plug at the other. If I understand it correctly, all I would have to do was to press and hold the power button to fire up the instrument but nothing happened!
I have made sure that there is 12 V in the connector and have double-checked with the installation guide that I should not use the supplied power cable if I am connecting the GMI 10 to an existing NMEA 2000 network that is already powered. The adapter I am using works fine for powering the Maretron DST100 hull sensor so I don't see why it couldn't power the GMI 10.
Could anyone give me a hint about what I am doing wrong here?