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Part system integration

Communication systems in rail vehicles

Whether railway operators or vehicle/system manufacturers. We efficiently integrate operational-relevant communication systems into your vehicle – transparently, in accordance with regulations, and with a clear focus on timely commissioning.

Our focus areas

Train radio (Language communication) – Integration, tests and proof

Radio data transmission – Connectivity, routers/modems, interfaces and cybersecurity aspects

Retrofit – Migration of existing fleets/variants with minimal downtime

What you can expect from us

Engineering, documentation, verification/validation and commissioning from a single source

Experience from many European projects (rollout, retrofits, multi-country approvals, operator take-over)

Technically clean solutions, documented in a comprehensible manner and auditable

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Train radio

Proven reliable speech communication in operation

We integrate Train radio systems (e.g. MESA®26) into existing vehicle architectures, taking into account the installation location and the power supply. This also includes the connection of control and audio devices. One of our strengths lies in considering migration towards FRMCS, To enable an economical and sustainable solution. We offer you flexible migration solutions to protect your existing investment.

During the integration, all interfaces between manufacturers and operators are diagnosed and coordinated, and we provide installation and testing concepts including installation and acceptance documentation.

Of course, we provide support for type and batch testing, EMC assessments and evidence management.

Radio data transmission

We secure the connectivity for your operation, the diagnostic system, and the passenger and back-office applications. In the design and configuration process, we take into account routers/modems, antennas, data and service interfaces, and network coverage. We integrate the data link into your vehicle networks via Ethernet, IP services, and/or VPN, conducting performance and stability tests as needed. If required, we take care of your cybersecurity aspects (e.g., segmentation, hardening, and update/release management). Our operational and maintenance concepts regarding remote access, logging, and diagnostics ensure the operational safety of your data link.

Retrofit

We ensure a planned, sustainable and reproducible migration and fleet conversion with minimal downtime:

Conversion/migration concept including variant and change management

Retrofit kits: item lists, installation instructions, testing and acceptance procedures

Support for workshop/on-site installation, commissioning and error analysis

Rollout support from the pilot to the series, including lessons learned and process stabilization

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Excellent approval management

In the railway market, the use of products without the necessary compliance with applicable regulations, including the corresponding certificates and approvals, is not permitted. Despite all efforts in the sector to harmonize and optimize requirements and procedures, the requirements remain high and the processes complex.

At this point, make the Funkwerk Licensing Management The difference: Our competent team of specialists works in close coordination with our customers, the assessment and approval authorities, and testing and inspection institutes around the topic of homologation.

Our services

Funkwerk provides support for the multifaceted requirements of the market for the ZZS component system testing of vehicles or series, or performs this testing on behalf of customers as well. In addition, we support the change management departments of operators, owners, or manufacturers in handling changes.

Further services

We also offer our services on current topics such as vehicle approval in the 4th Railway Package, Requirements Capture, Change Evaluation, Conformity Evaluation and Auditing.

Our approach

Requirements & ConditionsWorkshop / Inventory

Integration planArchitecture, interfaces, evidence

Implementation & TestingIntegration, V&V activities, documentation

Drop-off & handoverOperator support, serial/rollout guidance

Why Funkwerk?

System integration is more than just installation: it is the interplay of technology, evidence management, process reliability, and stakeholder management. This is where we bring our experience – so that your project not only works, but is also documented for acceptance and approval.

Its advantages

PlanabilityClear milestones, transparent risks, reliable timelines and cost estimates

Security: verifiable verification/validation evidence and a clean document record

EfficiencyReusability through standards, templates, and variant/configuration management

PracticalityEngineering expertise plus implementation on-site

Standards & Regulations

Support in assessing compliance with relevant European and national regulations (e.g. TSI/EN)

Customized specifications: appropriate to the vehicle, the country of deployment, and the operator process

Overview of services

Requirements and interface specification as well as integration architecture

Installation design, installation and testing concepts (workshop/on-site)

Test plans, test protocols, V&V evidence, acceptance documents

Configuration and change documentation (variants, releases)

Operational/maintenance concepts, training and handover documentation

Faster entry

Initial workshop (remote or onsite)

First integration roadmap including risk/dependency analysis

Proposal for pilot/prototype implementation and serial rollout

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