Driver Safety Device
The Driver Safety Device (DSD) Vigilance Unit is a key component of the DSD vigilance system suitable for use with Diesel or Electric Multiple Units, locomotives or other railway traction units. DSD Vigilance Systems help ensure that the train driver remains alert whilst in a position to control their vehicle. It achieves this by monitoring the state of certain resetable or variable inputs - e.g., DSD Foot Pedal, Direction Selector, Power Controller, Brake Controller, Warning Horns, Automatic Warning System (AWS) caution acknowledgement.
A warning is issued to the driver requiring positive action to prevent the system applying the emergency brakes, when state changes of the system inputs do not occur within a pre-set time interval.
The DSD Vigilance Unit meets all relevant performance and environmental specifications required by the rail industry and is service proven.
DSD Highlights
> For multiple units, locomotives and railway traction units.
> High immunity to electrical disturbances and interference prevents spurious operation.
> Comprehensive Built-in-Test and Fail-Safe Watchdog, with LED display.
> Available in 24V dc and 110V dc versions; other voltages to special order.
> High reliability - service proven.
> Meets all relevant rail industry specifications.
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