The Collins Aerospace CMU-900 is the newest ARINC 758 compatible Communications Management Unit and is designed to satisfy Data Link Communication needs for today and the future. The unit hosts the Level C Protected Mode CPDLC Applications necessary to meet the European Data Link Mandate. The CMU-900 offers AOC customization, allowing the aircraft operator to configure the CMU meeting the user’s operating requirements. The optional development tool offers customizable routing tables for improved message routing. This permits management of Communication Service Provider preferences, cost indexes, and performance indexes. Flight crew control and display of information is provided through the interface to ARINC 739 capable Multi-Function Control Display Units.