What does it indicate when the ADCL light is off?

When the ADCL light is off, it indicates that the train is ready for service. This light serves as a confirmatory signal that the various systems and components of the train are functioning properly and that the train is in a state that is safe for operation.

In this context, the significance of the ADCL light being off means that the necessary safety checks have been completed, the systems are operational, and there are no critical alerts or warnings that would prevent the train from being put into service.

Understanding the function of the ADCL light helps maintain safety protocols and operational readiness, ensuring that trains are only dispatched when they are fully operational. This reinforces the importance of monitoring all indicators during pre-service checks to ensure safety and compliance on the railways.