DDC DD-42916XR-302 ARINC 429 VXI Interface Module

The DDC DD-42916X ARINC 429 VXI InterfaceModules, available in B or C size, provide a high-performance communications link between a VXI host and an ARINC 429 Data Bus. This series of modules is factory configured as either register- or message-based devices. The module architecture is based on a multiprocessor design that provides reliable, high-integrity ARINC 429 reception and transmission. Modules are designed for high-performance applications, capable of off-loading tasks from the host computer that could not previously be performed by a single interface module.

The modules conform with the Mark 33 Digital Information Transfer System 42914 specifications. They are capable of parametric testing that handles communications which deviate from the standard specification. This is useful during the test and validation phases of Line Replaceable Unit (LRU) development and at repair depots for implementing margin testing to detect "phantom" errors and failures. The modules support eight configurable parametric channels that can be set as either receivers or transmitters. When acting as transmitters, these channels can output signals from 0 to 12 Volts. Transmitters or receivers can be configured for variable word sizes (2 - 32 bits), appropriate parity (EVEN/ODD/NONE), variable frequency (5 KHz - 120 KHz), and variable bit gap. In addition to the eight configurable channels, the modules also provide eight low-speed receiver channels, for a total of up to 16 independent ARINC 429 channels. The modules can filter received data and schedule transmitted data as determined by the host computer. All of the DD-42916X series modules have a floating-point coprocessor used to convert data to and from engineering units. This allows the host to communicate data to the module in engineering unit format.