The National Instruments PXI Avionics Multiprotocol Interface Modules provide PXI bus interfaces for MIL-STD-1553 and ARINC 429 protocols, making them ideal for avionics product development, production, and system testing. These modules support LabVIEW and C/C++ instrument drivers for seamless integration. The LV-222-511-442 (784805-01) is designed for simultaneous access to MIL-STD-1553 and ARINC 429 avionics databuses, allowing efficient communication between multiple systems, including PXIe. The LV-222-555-442 (784806-01) offers multiprotocol support and can control two avionics databuses within a PXI system. It features 2 core I/O sites, each with 64 MB of memory and 8 bidirectional TTL discrete I/O, and can function as a monitor, bus controller, or up to 32 remote terminals. Both modules provide advanced avionics communication capabilities, ensuring flexibility and high performance in complex aerospace applications.