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Traffic Controller Cabinets & Systems
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  Preemption and Priority Equipment - Emergency Vehicle Phase Discriminators
  Our Emergency Vehicle Phase Discriminators not only provide the necessary advanced detection and discrimination required but provide improved system security and upgradability. Installed inside the traffic cabinet, these modules provide power for Optical Detectors, receive and prioritize signals from the detectors, and optically isolate the preemption channels.

 3080 Preemption Processor Card, Dual Priority OSPData Sheet 
 3140 Preemption processor card with loggingData Sheet 

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