CAF Signalling

Rail Traffic Signalling Systems

At CAF Signalling, the technological subsidiary of CAF Group, we are focused on the design, development, manufacturing, supply and maintenance of Rail Signalling Systems, thus providing integrated signalling solutions for infrastructures and rolling stock, both in Spain and internationally.

We possess our own capacity and engineering expertise for getting involved in “turnkey” projects relating to rail signalling. We are well recognized as such in various rail administrations throughout Spain and in other countries in Europe, America, Africa, Middle East and Asia.

Our strategy is based on:

– Having available own proprietary-technology products both within the field of infrastructures and on-board systems, which are the core of our integrated solutions. Thanks to significant, increasing efforts in R&D+i, in particular in the field of critical safety systems, we in CAF Signalling drive for ongoing innovation and adopt a customer-oriented approach.

– Strong know-how in signalling engineering, which is a must for embracing rail signalling turnkey projects.

– High capabilities for managing and implementing complex projects, relying on the support provided by our parent company CAF and on the Group’s proven track record in the railway industry.


Auriga: Level 1 and level 2 ETCS

In order to provide an answer to the European Rail Traffic Management System (ETCS), we at CAF Signalling offer our AURIGA integrated solution. AURIGA ensures high-performance ETCS solutions both for Level 1 (AURIGA L1) and for …

Aurigo ATO

ATO over ERTMS Our ATO (Automatic Train Operation) solution provides a GoA2 (Grade of Automation) based on ERTMS Technical Specifications for Interoperability. The system is divided into two parts, the ATO trackside and the ATO on-board. ATO trackside …

Quasar S3E: Electronic Interlocking

The Electronic Interlocking QUASAR S3e is the foundation of the company’s signalling solutions. A pioneering device in implementation of the EN-50126 and all other associated standards, the Electronic Interlocking S3e – QUASAR has become widely …

NAOS: Integrated control posts

NAOS is our solution for Integrated Multi-Function Control Posts as required by current Signalling, Command and Control Systems for Rail Infrastructures. Based on the PCCI Integration Platform developed by CAF Signalling, NAOS stands out for providing …


CAF Signalling
C/ Juan Fermín Gilisagasti 4
2ªplanta 20018
San Sebastián (Gipuzkoa)
  • +34 943 80 55 75