Fibre optic communication subsystem test procedures - Part 2-11: Digital systems - Averaged Q-factor determination using amplitude histogram evaluation for optical signal quality monitoring (IEC 61280-2-11:2006); German version EN 61280-2-11:2006
Edition 2006-11

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 7: Equipment impedance; German version EN 50065-7:2001
Edition 2002-06

Interface for loudspeakers with digital input signals based on IEC 60958 (IEC 62537:2010); German version EN 62537:2010
Edition 2011-01

Safety of machinery - System of auditory and visual danger and information signals; German version EN 981:1996+A1:2008
Edition 2009-01

External cables for telecommunication and data processing systems; signal and measuring cables, mining cables
Edition 1988-02

Railway applications - Environmental conditions for equipment - Part 3: Equipment for signalling and telecommunications; German version EN 50125-3:2003
Edition 2003-10

Safety of machinery - Visual danger signals - General requirements, design and testing; German version EN 842:1996+A1:2008
Edition 2009-01

Warning signals - Part 1: Acoustic warning, all-clear and note signals
Edition 2020-02

Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital signals (IEC 85/748/CDV:2021); German and English version prEN IEC 60688:2021
Edition 2022-03

Aerospace series - Elements of electrical and optical connection; Test methods - Part 702: Electrical elements; Measurement of signal distortion of couplers; German and English version EN 2591-702:2001
Edition 2002-10