Annex C Requirements on Power Supply of Components of a Vending Machine (Normative)

Power supply requirement can change by order of magnitude on different machine configurations.

The common configuration for Vending Machines, all components are located inside a single housing, which is built around the Machine Engine; on small Vending Machines the most power is needed by the actuators on the Machine Engine.

On the existing MDB / ICP protocol (but also on previous Vending related protocols), the power supply for the payment devices is provided by the Machine Engine.

The power distribution inside the machine shall follow the specification from chapter 4.1 and 4.3 of MDB / ICP specification version 4.3; the only change shall be a two-pin connector instead of a 6-pin connector.

On the specification there is no minimum requirement for the needed power the Machine Engine has to provide, the Machine Engine manufacture has to provide its own power rating.

If any additional device requires more than the provided power rating, as stated in MDB Chapter 4.1, the device manufacturer shall provide its own power supply solution.