Application Notes

WAAS Approach

This solution uses our NEXSYS ARINC 429 Multi-Bit Decoder (SR429/4D) and a NEXSYS Diode Pack component inside a VIVISUN High Capacity annunciator housing. Once the ARINC 429 data is received, the annunciator decodes bits 17, 18 and 19 to correspond with the correct level of service.

Current Draw Sensor

In its relaxed state, the “STBY” legend of the LED indicator is illuminated since the SPDT-DB switch is providing a path to ground through the normally-closed (NC) position of the switch contact.