The National Instruments 784806-01 PXI Avionics Multiprotocol Interface Module, designated as LV-222-555-442, is engineered for advanced avionics applications. This robust module features two core I/O sites, each boasting 64 MB of onboard memory and eight bidirectional TTL discrete I/O channels, enabling it to function as a monitor and bus controller, while also supporting up to 32 remote terminals simultaneously. It is specifically designed to interface with widely utilized avionics databuses, including ARINC 429 and MIL-STD-1553. Each core is equipped with two user-controllable LED indicators for immediate visual feedback on operational status. The module operates with various software environments, including compatibility with the Windows-based CoPilot software and provides a BTIDriver API for integration with programming languages such as VB, LabVIEW, C/C++, and C#. Its power requirements range from +3.3 VDC to +12 VDC. The 784806-01 is built to endure a wide range of environmental conditions, functioning effectively within an operating temperature range of -40 to 85° C and withstanding storage temperatures from -55 to 100° C. It is designed for operation in environments with noncondensing humidity levels of 0 to 95%. Housed in a standard 3U PXIe form factor, the module weighs 3.5 lbs (1.6 kg) and is backed by a three-year warranty from National Instruments.