The BayRail^® cable are used on the railway for control and safety technology systems. Examples of applications are level crossing safety systems, plant management systems and marshalling yards, electronic railway control centres (ERCC), safety-related information systems and train running control (Indusi, PZB, LZB).

As safety-relevant assemblies, there are stringent checking and approval regulations for signalling cables. In addition to the approval by the Eisenbahnbundesamt (EBA, Federal Railway Office), the production of these cables is monitored on an ongoing basis by the Association for Electrical, Electronic & Information Technologies (assessment with production monitoring).