Specific services capability. The ADLP shall be capable of receiving control and message data from the
Mode S specific services interface(s) and sending delivery notices to this interface. The control data shall be processed to
determine the protocol type and the length of the message data. When the message or control data provided at this interface
are erroneous (i.e. incomplete, invalid or inconsistent), the ADLP shall discard the message and deliver an error report at the
interface.