MDB Bill Acceptors & Validators

MDB (Multi-Drop Bus) is the serial protocol vending machines use to communicate with their payment peripherals. Unlike pulse, MDB is two-way: the machine polls the validator, the validator reports which denomination it took, and the machine can direct it to stack, return, or hold the note in escrow. That two-way link is what makes exact change, cashless add-ons, and audit reporting possible.

Everything in this collection is MDB-configured. On the bill side that includes ICT V6E validators in 24V with 300 to 800 note stackers, ICT S7A and LX7 units, Pyramid Apex 7400, 7401, and 7402 models in -UB4 configurations with standard, Coinco, and VFM bezels, and the MEI Talos vending and amusement range. Also listed are MDB bill recyclers such as the ICT BRV3 series in USD, EUR, GBP, ILS, and COP builds, Bellis validators and recyclers, MDB coin acceptors and coin changers, and the ICT Data Audit Box for transaction logging.

MDB peripherals generally run on the machine's 24V or 34V bus rather than a 12V supply, so check what your board provides before ordering. Confirm bezel style and cashbox footprint as well if you are fitting a validator into an existing door cutout. If you are replacing an MDB acceptor in a specific machine, send us the make and model and we will confirm which unit fits.