The PSC solid-state switching traffic signal controller offers the traffic engineer unprecedented power and flexibility with uncompromised safety. The 16-bit microprocessor silently switches up to 16 vehicle/pedestrian signal groups in accordance with measured traffic conditions and pre-programmed instructions to meet the many requirements for effective traffic control.

Now you can use the world famous SCATS system with many existing non-SCATS traffic signal controllers. The SOTU can control any host controller that has hurry call or force/hold inputs or logically controllable detectors.