The Arinc-Manchester Converter (AMC) is intended to intercept and inject messages between the radio management unit (RMU) and the integrated communications unit. The AMC acts as the controller for the ADS-B compliant transponder via an A-429 bus. Messages from the RMU bus are forwarded to the COM bus while return status messages from the transponder, combined with COM bus data, are transmitted on the RMU bus.
