SPX5 communicating to ST70

[Chuck - Raymarine - Moderator]

Deb,

When using the SPX5 Autopilot Course Computer with a ST70 Autopilot Control Head, these two items should each be interfaced as a spur to a powered and properly terminated SeaTalkng / NMEA 2000 backbone ... as such, the backbone kit is required. The SPX5 Wheel Pilot was initially produced with a ST6002+ Autopilot Control Head and unfortunately, the currently posted documentation exclusively references this control head instead of the ST70 Autopilot Control Head ... this will soon change. The attached document addresses commissioning using the ST70 Autopilot Control Head.