Monday 08 August 2022

Nama releases Multi-Drop Bus (MDB) standards – Version 4.3

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CHICAGO, U.S. — NAMA announced today the release of the latest version of the Multi-Drop Bus (MDB) standards – Version 4.3. This spring, NAMA VDI Task Force Chair Chris Lilly (Compass Group USA) appointed an ad hoc technical standards committee headed by Bob Ross (Ellenby Technologies, Inc.) with special assistance from Scott Hudis (Fawn Engineering Corp.), and Joe Simpkins (USA Technologies, Inc.) to implement revisions to MDB Version 4.2. Fifteen NAMA members volunteered to participate in this latest update, and significant contributions were also provided by the European Vending Association (EVA) with guidance from Vladimir Lopatin (Uvenco Group).

“As VDI coordinator, I applaud the fine work of this committee under the skillful leadership of Chris Lilly, Bob Ross, and Vladimir Lopatin,” said Michael Kasavana, Ph.D., NAMA Endowed Professor Emeritus. “Committee members provided valuable input that impacts our industry tremendously. MDB Version 4.3 allows for a comprehensive treatment of cashless transactions across convenience services. The MDB standard has a long history of quality and reliability, and MDB Version 4.3 is built on the same proven principles,” he concluded.

The MDB Version 4.2 standard had not been revised for eight years. MDB Version 4.3 is now available as a downloadable PDF on the NAMA website. Download your copy here. It is important to note that compared to the earlier version, MDB Version 4.3 revisions only appear in ‘Section 7 – Cashless Devices.’ The revised Section 7 is color coded to help clarify the changes. All other sections of MDB Version 4.3 remain identical to those of MDB 4.2.

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