Seatalk 1 to Existing NMEA 2000 Network

I would like to interface an ST60+ Depth to an existing NMEA 2000 Network. I believe the ST1 to STNG converter should be connected as an extension of the NMEA 2000 backbone with power being supplied by the existing NMEA 2000 network. If I terminate the converter on one end and the NMEA 2000 backbone on the other end, how do I connect the converter backbone to the NMEA 2000 backbone using the blue connector on the converter? Is there a blue connector devicenet adapter cable available similar to the A06045 and A06046?

Thanks!