ARINC 739 MCDU
Multi-Purpose Control and Display Unit (MCDU) Simulation

Application Scope

The A739MCDU ARINC 739 Multi-Purpose Control and Display Unit application program allows simulating the ARINC 739 MCDU interface with one LRU. The program operates in conjunction with TechSAT’s A429PCI PCI bus interface, A429PCC PCMCIA Type II PC-card, or with the legacy A429EPC PC AT-bus interface. The A739MCDU simulation allocates one transmitter and two receivers of the A429EPC/PCC interface. The receivers Rx2 and Rx3 are free and can be used to trace the entire data exchanged between UUT (Unit under Test) and MCDU for troubleshooting purposes.

The ARINC 739 MCDU simulation is an exact replica of a real MCDU with realistic colors and an ISO5-compliant font. The whole scope of MCDU operations and displays is implemented, including:

• Automatic detection of connected LRU through the label 172
• Full scratchpad functionality (data input via the MCDU keyboard and moving through Line Select keys)
• Menu browsing supported by Previous page, Next page and MCDU Menu keys
• 13 user-definable specific function keys (which can be assigned to LRUs)

The simulation also supports the recording of all transferred ARINC 429 data. The ARINC 429 DataView utility included in the simulation allows you to analyze and post-process the recorded ARINC 429 data.