What color indicates a single failure in a triple redundant system?

In a triple redundant system, the color that indicates a single failure is yellow. Yellow typically serves as a cautionary alert. In the context of such systems, it is used to signify that one of the three redundant elements has experienced a failure, but the system is still operational due to the remaining two functioning components. This warning allows operators to be aware of a potential issue while still relying on the overall functionality of the system.

Green generally signifies normal operation, while red indicates a complete failure or critical status where the system is not functioning. A white cross hatch may represent maintenance requirements or caution that is not related to operational failure but instead denotes areas that require special attention or are not to be used. Understanding these color codes is crucial for effective monitoring and response in critical systems, allowing personnel to quickly assess the state of system health and resilience.