A method of transmitting a set of conforming data frames within an avionics system. The avionics system including a Flight Management System (FMS) and an avionics device. The method including generating, via the avionics device, at least one specialized message, transmitting, via the avionics device, the at least on specialized message, generating, via the avionics device, the set of conforming data frames, and transmitting, via the avionics device, at least a subset of the set of conforming data frames. The method comprising receiving, via the FMS, at least one transmission including at least one of the specialized header frame or the set of conforming data frames from the avionics device.