is the p70 control head compatible with a 400 course computer?

[Chuck - Raymarine - Moderator]

Thanks for further clarifying your system's marine electronics components. For the benefit of others who may be reading this thread, the solution to be supplied by this team is often dependent upon having a list of each of the system's marine electronics components ... and as such, the response provided previously is not valid. Given the list of equipment which you have supplied, the p70 Autopilot Control head should instead be interfaced as a spur to a powered and properly terminated SeaTalkng backbone to which the MFD, and i70 displays have also been interfaced as spurs. For closely located devices having SeaTalkng communications interfaces, up to three such devices may be daisy-chained to one another using appropriate lengths of SeaTalkng spur cable. The maximum total length of such daisy-chain SeaTalkng spurs cannot exceed 15 meters.

A SeaTalk to SeaTalkng Converter will be interfaced to this SeaTalkng backbone as a backbone component. The SeaTalk bus interfacing the Type 400 autopilot course computer and up to four additional devices featuring a SeaTalk communications interface will be interfaced to the yellow SeaTalk port of the SeaTalk to SeaTalkng Converter. When connecting the SeaTalk cable to the autopilot course computer's SeaTalk port, only the cable's yellow and shield leads will be used. The red lead of this cable will not be used and will be insulated to prevent shorting. Please click here to view a FAQ addressing this subject.