The cMDB (Cartadis multi-drop bus) is the Cartadis MDB controller for Gespage. This payment controller for Vending Machines is the physical link connecting a vending machine to a Gespage server.
By using a cMDB, users can use their Gespage wallet to pay the products from a vending machine. The Gespage wallet then enables payment for products from a vending machine in addition to prints, copies or scans.
Users authenticate with their identification card associated with their Gespage account thanks to the contactless card reader (additional equipment) connected via USB to cMDB.
Fully compatible with the MDB standard, the cMDB can be connected to any type of machines featuring a MDB connector like vending machines, laundromat controllers …

Card reader

To operate, cMDB has to be connected to a card reader, most often a Cartadis reader of contactless cards as shown on the photo (TCM2 or TCM3).

The cMDB benefits for your daily uses

• A wide range of compatible equipment.
• Reliable and robust unit.
• A use of the vending machine with or without coin mechanism.
• Ideal solution for campus where the same wallet needsto be shared between prints and copies, washing machines, beverage or snack payment.

Lecteur de cartes

A user having an account on Gespage swipes his card on the contactless reader mounted on the vending machine. The process is as follows:

• The cMDB connects to the Gespage server over the network and checks if the owner of the card is allowed to use the vending machine.
• The cMDB gets the current value of the wallet from Gespage.
• The cMDB sends the value of the wallet to the vending machine.
• The vending machine displays the current value of the wallet and waits for the product selection.
• The user selects a product.
• The vending machine asks cMDB to debit the wallet from the value of the product.
• The cMDB updates the wallet on Gespage server if the product is well dispensed.