Redefining Railway Communication
Safe, Standardized, Future-Proof
The RaSTA stack forms the foundation for communication in railway systems. As experienced specialists, we assist manufacturers, railway operators, and integrators in efficiently implementing RaSTA and EULYNX and seamlessly integrating them into new or existing infrastructures. From the first line of code to the finished system, we create solutions for the digital railway world of tomorrow.
Why choose CSA?
We, as experts
Deep Expertise in RaSTA & EULYNX
We not only master the protocols but also the entire architecture. We provide the appropriate tools and ensure seamless integration into real-world, critical railway systems.
Comprehensive Support & RAMS Compliance
We support you throughout the entire lifecycle. From conception and development to testing and integration, and on to operation. In doing so, we guarantee compliance with standards according to EN 50126 (RAMS), EN 50716, EN 50129 and EN 50159 .
Experience from Railway Operations
Our expertise is proven in practice: We developed the RaSTA stack for the Swiss Federal Railways (SBB) and continue to support it as a robust industrial product for a wide range of customers.
The foundation for secure data transmission
What is RaSTA?
RaSTA (Rail Safe Transport Application) is a specialized protocol for the secure transmission of messages in railway technology. It ensures that data arrives reliably and unaltered, even over insecure transmission paths such as Ethernet, adhering to the highest safety standards (SIL 4).
Understanding the standard
What is EULYNX?
EULYNX is a European standard for communication between interlockings and field elements in railway engineering. It enables cross-manufacturer interoperability and forms the basis for modern, secure railway control systems.
Electronic Interlocking
EULYNX System
Field Elements
Reference Projects
Completed Projects
Successful implementations with leading European railway operators demonstrate our expertise in the EULYNX ecosystem.
EULYNX in Use - CSA Field Elements as Part of the DB Demonstrator
Client:
DB
Date:
Apr 8, 2022
As part of the "Moving Block Demonstrator" project at the Digital Railway Test Facility (Erzgebirge), CSA Engineering has completed a proof of concept for the EULYNX Object Controller for specific field tests by Deutsche Bahn.
Field Element of the EULYNX PoC Platform
Client:
SBB
Date:
Mar 15, 2022
The platform is deployed at the Löwenberg test facility near Murten and enables practical verification of EULYNX-compliant systems under realistic conditions.
RaSTA Protocol Stack
Client:
SBB
Date:
Feb 28, 2022
The advancing digitalization in the railway sector presents new challenges for infrastructure operators. Particularly, the integration and communication between different systems impose high demands on safety and efficiency.
Development process
EN 50716 (formerly 50128) compliant process
Our proven development process ensures the highest quality and meets all railway standards requirements.
30%
Accelerated development through reusable components
100%
Traceability of all requirements
SIL4
Highest Safety Level for Railway Applications