NMEA position data from Course computer S1G

[Petersailor]

I have a MFD e7, course computer S1G and Raytheon ST60 instruments, ST60 multi and ST6002+
All system is converted to Seatalkng with use of the ng converter.

I need to have a NMEA output to get position data (DSC) for my Sailor VHF 4801 with baud rate 4800.
I use the internal gps in the MFD for positioning but I have also a separate Raystar 120 antenna installed but this is today disconnected (was earlier connected into the course computer but I disconnected it when I installed the e7)

Will the S1G NMEA output send position data or do I have to connect the VHF to the NMEA out from e7 instead?

If I connect the Raystar 120 to the S1G again will it then work? and can I then still use the internal gps in the e7?