Illuminated switch or indicator with integral data communications device and fail sense function

An aircraft annunciator (illuminated switch or indicator) includes, within a housing sized to fit in the panel cutout for a single pushbutton aviation switch, a bus converter to interface with a multiplexed ARINC serial data bus, in order to monitor a remote item of equipment such as an ADS-B transp...

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Bibliographic Details
Main Authors Edwards, Steven A, Coley, Craig Jay, Humphreys, Morris Ray
Format Patent
LanguageEnglish
Published 20.08.2019
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC SWITCHES
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
PHYSICS
RELAYS
SELECTORS
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Summary:An aircraft annunciator (illuminated switch or indicator) includes, within a housing sized to fit in the panel cutout for a single pushbutton aviation switch, a bus converter to interface with a multiplexed ARINC serial data bus, in order to monitor a remote item of equipment such as an ADS-B transponder. The annunciator is coupled by selected pins to receive data words from the multiplexed ARINC serial data bus. A watchdog timer is continuously reset by valid messages from the transponder, logically ORed with the power supply as well as external analog fault signals in order to generate an output controlling illumination of an FAA-mandated "ADS-B FAIL" legend on the annunciator.
Bibliography:Application Number: US201715675513