Industrial communication networks - Fieldbus specifications - Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series (IEC 65C/1098/CDV:2021); German and English version prEN IEC 61158-1:2021
Edition 2022-07

Terminal Equipment (TE); international videotex interworking between gateways; english version ETS 300107:1991
Edition 1992-09

Industrial communication networks - Fieldbus specifications - Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series (IEC 61158-1:2019); German version EN IEC 61158-1:2019
Edition 2020-04

Integrated Services Digital Network (ISDN); support of CCITT recommendation X.21, X.21bis and X.20bis based Data Terminal Equipments (DTEs) by an ISDN; synchronous and asynchronous terminal adaption functions; english version ETS 300103:1990
Edition 1992-02