National Instruments 784805-01 PXI Avionics Multiprotocol Interface Module

Part number 784805-01 from National Instruments is the identifying number for the LV-222-511-442 PXI Avionics Multiprotocol Interface Module. Essentially, this module is designed to act as a bridge between the PXI and two of the most common aviation communication protocols: MIL-STD-1553 and ARINC 429. These protocols are frequently used for safe and dependable data transfer between the various systems and equipment that are utilized in the construction processes of both fighter and commercial aircraft. The issue with these databases, however, is that they are not immediately accessible from a system such as PCI, PXIe, or PXI. This is where the 784805-01 steps in. Boasting 2 core I/O sites that each have 64 MB of memory, the module features single-function capabilities that make it an excellent choice for communication with various avionics systems.

When it comes to the MIL-STD-1553 data bus standard, the 784805-01 can operate as either a bus controller or a monitor, and it can provide up to 32 remote terminals. The module supports all of the message types that are defined by the MIL-STD-1553, and it is even capable of recording and storing a time-stamped history of activity from the bus. This capability provides the user with quick and easy access to this information for analysis purposes.

The 784805-01 is equipped with 16 channels for the ARINC 429 data bus standard. In addition, the interface module has built-in processors that are able to handle all of the protocol-related tasks such as receive buffering and transmit scheduling. Each channel of the ARINC 429 has a bit rate frequency that is programmable.

The 784805-01 weighs 3.5 lbs. (1.6 kg), and measures as a standard 3U PXIe form factor size (100 mm x 160 mm). The device operates within a temperature range of -40 to 85° C, and can be safely stored within temperatures ranging from -55 to 100° C. In addition, it can withstand noncondensing humidity ranging from 0 to 95%.