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Case study

Ensuring seamless fleet modernization with next-generation passenger information systems

Transportation & mobility

A leading public transport operator sought to modernize its passenger information system across a fleet of several hundred buses. The existing on-board units (DynaPCN 10-20) were reaching the end of their lifecycle, and the upgrade to the new generation (DynaPCN 10-30) needed to be completed without disrupting daily operations.

The priority was to ensure compatibility with the current infrastructure, reduce maintenance complexity, and provide a long-term, reliable solution.

Annual revenue

~€60 million

Fleet size

~400 vehicles (buses)

Employees

~600

Challenge

The transition posed multiple challenges. The new devices had to integrate seamlessly with the existing RS485 cabling and connectors, avoiding costly rewiring. The legacy system relied on a maintenance panel that had proven fragile and time-consuming to manage, and the operator was determined to adopt a simpler, maintenance-free design. Another critical requirement was communication protocol compatibility: the fleet operated with a customized protocol derived from VDV300, meaning the new generation units had to support this legacy standard. Finally, although the latest version of DynaPCN 10-30 required little customization, rare but essential maintenance tasks still needed to be accessible without introducing additional certification burdens.

Solution

Eurotech developed an integration strategy that combined technical continuity with innovation. New custom cables and connector boxes were engineered to maintain compatibility with the current wiring, while ensuring future flexibility. At the software level, the legacy communication protocol was implemented in DynaPCN 10-30, guaranteeing full interoperability with the fleet’s existing control systems.

To simplify maintenance, the vulnerable panels of the previous design were removed. Instead, Eurotech provided access through Ethernet, allowing technicians to intervene, when necessary, without disrupting regular operations. A proof of concept was carried out in real conditions to validate the different options, focusing particularly on maintenance workflows and operator usability.

Results

The deployment of DynaPCN 10-30 was achieved without the need for rewiring, enabling a fast and cost-effective upgrade. Maintenance operations became more reliable and efficient thanks to the elimination of fragile components and the introduction of simplified access methods. At the same time, the integration of the legacy protocol ensured that the system remained fully interoperable with the operator’s infrastructure.