The communications management unit (CMU) enables data and messaging transfers between airborne and ground based systems by hosting communications protocols that allow for messages to be routed over various channels.
The Mark II+ CMU is highly flexible and configurable. It supports legacy and new aircraft interface requirements enabling pilots, airlines, and operators to meet their individual communications needs from almost anywhere in the world. With the Mark II+, flight crews are able to send and receive the most essential information available.
The Mark II+ CMU supports today’s most critical mandates, including Protected Mode - Controller Pilot Data Link Communication (PM-CPDLC), the datalink recording mandate, and it is certified for Future Air Navigation Systems (FANS) 1/A data routing and operation. Additionally, it was designed for ARINC 724B and ARINC 758 wiring and supports multi-frequency operations per ARINC 631-6.