The SR429/1M is a single bit ARINC converter, with additional inputs for up to two independent discrete analog signals. The typical application for the SR429/1M is for failure indications, although the device can be used for a wide range of ARINC digital to analog conversion situations. What makes the SR429/1M device unique is its ability to be packaged inside a traditional switch, indicator or LOGIC Module.
Transponder supplies the ARINC decoder circuitry with the two wire ARINC signal input and can be configured with the following options:
The internal fail sense circuitry simultaneously monitors the operation of the internal ARINC decoder and 2 optional external inputs and drives a single discrete output. Output will be normally Ground and become Open (high impedance) upon 1) a “fail” signal from the internal health monitor or 2) an indication from either of the optional external inputs.
To help system designers understand the potential of LOGIC Component Technology, we have assembled a collection of Application Notes. The links below show example applications that utilize the ARINC Signal Converter component.