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Installation

Connecting the MDB adapter

The MDB adapter sits between your SENVEND payment terminal, the vending machine and the cash devices. Here is what it does and how you connect it.

Overview

What the MDB adapter does

The adapter has two jobs.

A stable connection to the machine

On many vending machines the adapter improves the communication between card payment, age verification and the machine. On some machines it is what makes that communication possible in the first place.

Master telemetry

Coming soon

In the near future the adapter will make master telemetry possible. The guide for that will follow here.

What you needThe MDB adapter, the MDB power cable and the MDB connection cable that came with it, plus a USB cable from USB A to USB C.

Connections

The sockets on the adapter

Hold the adapter so that the latches of the MDB connectors point downwards. Seen from above, the MDB power cable is then on the right. In that view the right MDB socket belongs to the vending machine and the left one to the cash devices.

View of the MDB sockets with the latches at the bottom: 1 cash devices, 2 vending machine

Left MDB portCash devices such as coin changer and bill validator
Right MDB portVending machine (VMC)
Power connectionTwo-pin red plug; the cable leads to the MDB socket of the SENVEND terminal
USB C socketData connection to the SENVEND terminal, USB A at the terminal end
Close-up of the MDB adapter with the Terminal and Automat socketsClose-up of the MDB adapter with the Terminal, Automat and Geräte sockets
Do not swap the left and the right portThe vending machine always belongs on the right MDB port and the cash devices on the left one. If the two are swapped, no connection is established.

Guide

Connecting the adapter in seven steps

How the SENVEND terminal, the MDB adapter, the vending machine and the cash devices are wired together.

1 Terminal to adapterUSB cable: USB A on the terminal, USB C on the adapter
2 Terminal to adapterMDB power cable: MDB plug into the terminal, two-pin red plug on the adapter
3 Adapter to vending machineMDB connection cable on the right MDB port
4 Adapter to cash devicesCoin changer and bill validator on the left MDB port
1

Switch the vending machine off

Switch your vending machine off before you unplug anything.

2

Unplug the existing MDB cable from the terminal

If your SENVEND terminal has been connected to the machine directly via MDB so far, unplug the MDB cable from the terminal.

3

Connect the terminal to the adapter via USB

Connect the SENVEND terminal to the adapter with a USB cable: USB A on the terminal, USB C on the adapter. It does not matter which of the USB ports you use on the terminal. The photo below shows both cables: the USB cable and the MDB power cable from step 4.

UX700 connected to the MDB adapter with the USB cable and the power cable
4

Supply the adapter with power

Connect the adapter to the SENVEND terminal with the MDB power cable that came with it. That cable has a two-pin red plug on the adapter end and an MDB plug on the other end, which goes into the MDB socket of the terminal. The photo shows both cables on the terminal: the USB cable and the MDB power cable.

UX700 connected to the MDB adapter with the USB cable and the power cable
5

Connect the vending machine to the right MDB port

Connect your vending machine (VMC) to the adapter with the MDB connection cable that came with it. Use the right MDB port. You are looking at the adapter the right way round when the latches are at the bottom and the MDB power cable is on the right.

MDB adapter connected to the vending machine board with the MDB cable
6

Connect the cash devices to the left MDB port

Connect your cash devices such as the coin changer and the bill validator to the adapter. Use the left MDB port, again with the latches at the bottom.

Coin changer and bill validator connected to the vending machine through the MDB adapter
7

Switch the vending machine back on

Switch the machine back on and use a test sale to check that card payment and the cash devices work.

Questions about the installation?

Write to us via the help form or get in touch directly – we’re happy to help.