Transformers and inductors for use in telecommunication and electronic equipment - Main dimensions of coil formers - Part 1: Coil formers for laminated cores (IEC 61797-1:1996); German version EN 61797-1:1996
Edition 1997-05

Graphical symbols for diagrams - Part 9: Telecommunications; switching and peripheral equipment (IEC 60617-9:1996); German version EN 60617-9:1996
Edition 1997-08

Graphical symbols for diagrams - Part 10: Telecommunications; transmission (IEC 60617-10:1996); German version EN 60617-10:1996
Edition 1997-08

Transformers and inductors for use in electronic and telecommunication equipment - Part 7: Sectional specification for high frequency inductors and intermediate frequency transformers on the basis of the capability approval procedure (IEC 61248-7:1996); German version EN 61248-7:1997
Edition 1998-05

Transformers and inductors for use in electronic and telecommunication equipment - Part 4: Sectional specification for power transformers for switched mode power supplies (SMPS) on the basis of the capability approval procedure (IEC 61248-4:1996); German version EN 61248-4:1997
Edition 1998-05

Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment; part 1: transformers and inductors using YEI 1 laminations; identical with IEC 60852-1:1986
Edition 1990-09

Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; Section 41: Application protocols; Distribution line message specification (IEC 61334-4-41:1996); German version EN 61334-4-41:1996
Edition 1997-09

Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores (IEC 60852-2:1994)
Edition 1995-08

Laminations for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Specification for the minimum permeabilities of laminations made of soft magnetic metallic materials (IEC 60740-2:1993)
Edition 1995-08

Blank detail specification - Fibre optic branching devices - Type: Wavelength selective transmissive star for telecommunication application; German version EN 181104:1997
Edition 1998-11