Axle Generators use internal speed sensors to count pulses related to specific gear rotations. This speed data is then relayed to the onboard computer for determination of potential overspeed conditions.

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Track Receivers inductively receive coded signals from the rails. These signals are then processed by the onboard computer as continuous signal aspects. PHW offers a variety of track receiver bars, including both conventional and patented, high AC traction immunity versions.

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Decelerometers are vital, microprocessor controlled devices that can be used to determine a vehicle's deceleration rate. Fail-safe design principles ensure that a compound deceleration rate cannot be erroneously obtained.

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PHW builds Power Supplies for our own cab signal systems. We also custom manufacture power supplies to serve most any existing onboard electronics application.

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