Raymarine forum

Sure. It's a normal, properly terminated, N2K network.

I just want to know the correct way to connect it to an ST1-to-STng converter block. I assume from the blue STng backbone port to the backbone port of the N2K bus (via a field installable connector) and NOT through an N2K drop line on an N2K T.

See attached.

You will use either cable # A80674(STNG backbone to DV male) or #A80675(STNG to DV Female) to connect the E22158 to the NMEA2000 backbone. Make sure to remove the terminator on the NMEA2000 and then plug one of the above cables in.