Pulse-Parallel HSP Interface App Note

  This application note is intended to inform the user where to use this interface and his principle of operation.

            Vending machines that is using this interface are from Necta Zanussi manufacturers, like (examples): Astro, Kikko, Solista, Concerto, Opera, or other compatibles vending machine
             Maximum input voltage for interface is 36V. Typical Necta Zanussi has on his mainboard connector 24Vdc/600mA power supply for powering bill validator. This interface regulates the 24V to 12V for newer bill validators like Innovative BV20,BV100,NV9 bill validators. The inhibit block made use of inhibit functions of bill validator,don't allowing bills during preparation of coffee or in case of a fault/no product in vending machine.
             HSP version has the same functionality like NP but with high speed protection in case of shortcircuit or motor stall of the bill validator, with Reset button after the fault was fixed.