Fibre optic interconnecting devices and passive components - Fibre optic connector multimode optical interfaces - Part 2-2: Connection of 50 µm core diameter multimode physically contacting fibres - Non-angled and angled for reference connector application, at wavelength of 850 nm using IEC 60793-2-10 selected A1-OM2b to A1-OM5b fibre only (IEC 86B/4607/CD:2022); Text in German and English

Open Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 8: Communication using Broadband over Power Line Networks - with internet protocols; German version EN 14908-8:2021

Fire classification of construction products and building elements - Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: fire resisting ventilation ducts and fire dampers and/or power, control and communication cables; German and English version prEN 13501-3:2023