• Rail Computing & Communication (RCC) systems: the electronic backbone of modern rail vehicles.

  • Rail Computing & Communication (RCC) systems: the electronic backbone of modern rail vehicles.

Knorr-Bremse Selectron offers highly integrated system solutions for processing data, managing processes and optimizing connectivity in rail vehicles – generally known as Rail Computing & Communication (RCC). The Train Control and Management System (TCMS), for example, covers multiple areas of application: Like the human nervous system, it acts as a control center connecting together the entire train’s traction, braking, entrance, HVAC and lighting systems and wet cells. Essentially, TCMS controls almost all vehicle management and monitoring functions.


Selectron Systems AG

Bernstrasse 70
3250 Lyss
Schweiz - Switzerland

Phone: +41323876161

RCC systems play a vital role in the digitization and automation of rail vehicles. But in view of the sheer variety of different applications, there is no single, universal RCC solution. This is where the Selectron Rail Computing & Communication platform comes into play. It acts as a central hardware platform that includes the various control and communication units for vehicle systems as well as the necessary software such as the operating system and user tools. Thanks to a comprehensive selection of components and systems, Selectron can flexibly adapt individual subsystems to the specific requirements of vehicle manufacturers or operators, combining them to form a sophisticated, all-embracing vehicle ecosystem.

This is how Selectron ensures, for example, that new systems installed in the course of train modernization projects can always communicate with the older systems, while simultaneously ensuring that the system as a whole complies with the very latest cybersecurity and other safety standards.


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Selectron’s broad portfolio includes, among other things, user-programmable controllers (PLC) that function as vehicle control units, as well as network components (switches and routers), remote input/output modules (RIOM), cybersecurity products (attack detection systems), gateways, cab displays (HMI) and relays. It also includes operating systems as well as intuitive, well-organized user tools for commissioning, programming and diagnosing TCMS systems.

Vehicle control units – Generically and openly programmable logic controller (PLCs). The highly flexible SIL CPUs shorten the approval process of new vehicles, as well as for retrofitting work over the entire vehicle lifecycle.
Smart Remote Input/Output Systems – Streamlining connectivity with Smartio® decentralized Remote I/Os in SIL and Non-SIL versions. Simple integration as well as flexible, tailor-made and space-saving system extension.
Software & Tooling – Efficient and transparent software tools for every project phase - from engineering, configuration, analysis, diagnosis to visualization.
Cyber Security & Safety – security by design and defense in depth solutions as well as training and consulting services for existing and new systems to mitigate cyber security risks and assure legal compliance.
Subsystem controls – Flexible subsystem controllers as vehicle controllers for decentralized applications. Complementing the proven Smartio® Remote I/O system.
Function modules – Extension components, e.g. with complete wheel slide protection functionality 'WheelGrip', integrated into the established Smartio® system. Flexible combination of the individual components, optimally matched to the application.
Network Technology – Efficient data communication with Ethernet switches and routers for vehicle control systems and multimedia applications.
More information about the Control Systems / TCMS of our business unit Selectron

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