Vending Machine Protocols | Nayax Core
Your vending machine and your Nayax device need to speak the same language. That language is called a protocol. Nayax supports three main protocols MDB, Pulse, and Marshall each designed for different machine types.
General
Your vending machine and your Nayax device need to speak the same language. That language is called a protocol.
Nayax supports three main protocols MDB, Pulse, and Marshall each designed for different machine types. Choosing the right protocol is one of the most important steps in setting up your machines.
This section explains each one so you can make the right choice.
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Quick Reference MDB >>> Standard vending machines (snacks, drinks, coffee).
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MDB Protocol
MDB (Multi-Drop Bus) is the standard protocol for vending machines worldwide. If your machine has a VMC (Vending Machine Controller), which most snack, drink, and coffee machines do you will use MDB.
The VMC acts as the "master" and the Nayax device acts as the "slave," exchanging commands to handle payments and product delivery.
Pulse Protocol
Pulse uses simple electrical signals to communicate. It is designed for machines that use coin mechanisms instead of a VMC, laundromats, car washes, kiddie rides, photo booths, and amusement machines. Pulse has several modes (Single Price, Multi Price, Pay-as-You-Go, Linear) depending on how your machine charges customers.
- Pulse Hardware | Installation
- Understanding Nayax Pulse Modes: A Complete Guide
- Getting Started | Pulse Machine Protocols
- How to Configure Pulse Wizard Feature for a POS Device | Nayax Core
- Understanding Attributes and Configurations | Pulse
Marshall Protocol
Marshall is a serial protocol for machines that need advanced payment features — like kiosks, multi-service car washes, or any machine requiring pre-authorization. Marshall supports four session types: Single Session, Multi-Session with Pre-Selection, Pre-Authorization, and Always Idle.
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