Priority Alarm System (PAS)

Wabtec westinghouse air brake locomotive products Priority Alarm System (PAS)

The Bach-Simpson™ Priority Alarm System (PAS) provides a means of monitoring abnormal conditions in the cars of a passenger train that could affect human and/or equipment safety. The PAS signals train crew members when situations arise that require a high-priority response such as a fire in a car, an open door while the train is moving, dragging brake equipment or, most importantly, a call for help by a passenger in need of emergency assistance. The Priority Alarm System identifies the nature and location of an alarm in the train allowing the engineer to direct the conductor or another crewmember to investigate the trouble and take appropriate action.