The term "lead-in" in lead-in cable refers to:

The term "lead-in" in lead-in cable specifically refers to the connection between the loop and the controller. This connection is critical because it facilitates the transmission of data and power between the loop sensors, which detect vehicle presence or traffic conditions, and the control system that processes this information. Lead-in cables are essential for ensuring that signals generated by the loop are correctly communicated to the controller, enabling it to manage traffic signals, display information, or trigger other responses based on real-time data.

Understanding this term is important in signal technology because it helps technicians grasp how different components of traffic management systems interact. The connection plays a key role in the overall functionality of systems involving vehicle detection loops and their controllers.