[CA] Trouble finding replacement for C80 MFD

[Chuck - Raymarine - Moderator]

Dave,

Q1) Ok to use junction block D244 for the RS130 signal into the STNG backbone?
A1) Negative. D244 SeaTalk Junction Blocks are used to support joining devices having a SeaTalk interface to a SeaTalk bus and/or to one another. The Raystar 130 GPS Sensor does not have a SeaTalk communications interface. The Raystar 130 GPS Sensor has a SeaTalkng communications interface, and its 6m spur cable is designed to be directly interfaced to a spur socket within the backbone.

Q2)Everything I read in the various Ray manuals warns to only have one 12v power supply into a SeatalkNG network, but that doesn't seem correct. As planned, my SeatalkNG system would have a 12v supply for each of the following components: ACU200, Axiom9RV, SeatalkNG backbone, and Ray60. Can you confirm that all four 12v connections shown are needed and appropriate?
A2) Of the devices which you have listed, only the ACU200 is designed to supply power to a SeaTalkng / NMEA 2000 backbone. As indicated in the FAQ addressing installation of power circuits it is considered a best practice to power the SeaTalkng backbone via a dedicate switched circuit rather than via the ACU200. Accordingly, it would be recommended that the ACU200's SeaTalkng Power switch be moved to the OFF position when installing the autopilot course computer. Of the devices which are shown within your diagram, only the EV-1 CCU, Raystar 130, and p70RS are designed to be powered by the SeaTalkng / NMEA 2000 backbone. The remaining items will be powered via their respective power cables (Ray60, Axiom RV MFD) or power terminals (ACU200).