For NEMA type controllers, positions without jumpers are deemed what?

In NEMA type controllers, positions without jumpers indicate conflicts within the signal operation. In this context, a conflict means that there is an inconsistency or overlap in signal indications that could potentially lead to confusing situations for drivers or pedestrians. For instance, if certain signal outputs are not properly configured with jumpers, it can lead to signals that contradict each other, such as a red light for vehicles while pedestrians also see a green signal to cross.

Understanding this designation is crucial for traffic signal technicians, as resolving conflicts ensures safety and proper traffic flow. Properly managing conflicts helps prevent accidents and enhances clarity in traffic direction. Therefore, recognizing the significance of jumper positions in NEMA controllers is essential for maintaining effective traffic signal operations.