[CA] [CA11] RS125 - No communication

[Zulu]

I have done some more fault finding but first let me try to explain the system. At the helm station I have a E120 Classic MFD a i70, ST60+and ST6002. The i70 is connected with Seatalkng through a iTC5 and the ST60+ is connected to Seatalkng. See photo attached.

The navigation station has the following instruments. E120 classic MFD (Set as data master) a St60+ a ST70 and a Smart controller (A18105) for the autopilot.

I found that when I switch the E120 at the helmstation off that the GPS works fine most of the time.

I checked the software versions for both the E120 MFD's and found that the one at the navigation station (Data master) is v5.52. The one at the helm station is v5.69. I have no idea why the previous owners did not upgrade both. I also sometimes get a "No data master set" message at the helmstation.

I guess the starting point would be to upgrade both to the latest version. Is it 5.69 and will all else still work fine if I upgrade both.

Regards