LED Indicators or Digital ON/OFF Outputs

Digital outputs are a simple ON/OFF type of signals that can be used to control annunciators, lights, relays, power lines, instrument flags - that is, all two-state output devices that are present in every aircraft cockpit.

Multiple LEDs can be combined into one “bargraph” indicator to display the value of a numeric parameter. You can get one of those LED bargraph indicators present on the market in different sizes, colors and sector numbers (see below on this page).

Note that some indicators in your cockpit do not require receiving any data from the simulator for their operation. Often this can be an indicator that only shows the current switch position/state (not the system state!) and can be directly controlled by this switch, as most "korry-type" push-button switches).