SPX Autopilot Series Compatibility with AXIOM/AXIOM2 LH4 Series MFDs

AXIOM / AXIOM2 LH4 (LightHouse 4 operating system) MFDs can share information with older (SPX) autopilots when connected via Seatalk Ng (NMEA2000) or SeaTalk1 via Raymarine ST1/STNg Converter (E22158). The shared information includes rudder position, course, route, and steering towards waypoint.

Seatalg Ng System

Seatalk 1 System with ST1/STNg Converter

However, AXIOM / AXIOM2 LH4 MFDs cannot set the older autopilots to Auto mode or Track mode. There is no "control" from the chartplotter, which you only have from LH4 chartplotters with an Evolution Autopilot. Additionally, you cannot access the calibration menu for SPX autopilots via AXIOM / AXIOM2 LH4 MFDs.