Converts Raymarine SeaTalk data to SeaTalkng data.
One of these converters is required to connect a Madman Marine remote control (AP-WRC3, AP-WRC3iF, AP-WRC4) to a Raymarine Evolution type autopilot (e.g. ACU100, ACU200 etc.)
 
(Not required when connecting a Madman Marine remote control to non-Evolution autopilots (e.g. ST1000, ST2000, ST6000, SPX, S30 etc.)