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Developed for airline or special mission operations, the MCDU features additional ARINC 429 I/O ports which can support up to six ARINC 739 interfaces for ACARS, Satcom and future NextGen CNS/ATM systems.
The MCDU interfaces with the UNS-1Fw and UNS-1Lw NCUs. It also includes an ARINC 702 bus for interface with third party FMSs.
C109, C115b, C146c, C190, JTSO C115b