New & Used Trolleys, Trams, Welcome to Specialty Vehicles, the preeminent source of new and used trolleys, trams, electric shuttles, and other types of people movers. Since 1982, we have manufactured, distributed and sold our diversified line of vehicles to clients in an array of different industries.
Automotivecircuits use two types of signals:â¢INPUT-provides information about operating conditions(switches, sensors)â¢OUTPUT-causes an electrical or electronic device to operate(lamps, LEDs, relays, motors)Input and output signals can be either digital or analog, depending onthe application.
One of the main drawbacks to a digital TV signal or digital cable signal, for instance, is that it is an artificial reproduction of the original data, whereas an analog signal starts out as an exact copy of the original.