Data communication - Use of the X.25 packet level protocol in local and metropolitan area networks; identical with ISO/IEC 8881:1989 (status of 1991)
Edition 1996-01

Industrial communication networks - Fieldbus specifications - Part 6-25: Application layer protocol specification - Type 25 elements (IEC 61158-6-25:2019); English version EN IEC 61158-6-25:2019, only on CD-ROM
Edition 2020-08

Integrated Services Digital Network (ISDN); user-network interface data link layer specification; application of CCITT recommendations Q.920/I.440 and Q.921/I.441; english version ETS 300125:1991
Edition 1992-05

European digital cellular telecommunications system (Phase 2) - Mobile Station - Base Station System (MS-BSS) interface - Data Link (DL) layer specification; English version ETS 300555:1994
Edition 1995-01

Industrial networks - Wireless communication network and communication profiles - WIA-FA (IEC 62948:2017); English version EN 62948:2017
Edition 2018-08

Communication systems for meters - Part 5: Wireless M-Bus relaying; German version EN 13757-5:2015
Edition 2016-02

Integrated Services Digital Network (ISDN); ISDN lower layer protocols for telematic terminals; English version ETS 300080:1992
Edition 1993-09

Intelligent transport systems - ESafety - eCall minimum set of data; German version EN 15722:2020
Edition 2021-01

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection (IEC 61162-450:2018); English version EN IEC 61162-450:2018
Edition 2019-02

Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDN) using CCITT recommendation X.25 (1984) interface; requirements applicable to DTEs subscribing to Multilink operation; english version ETS 300124:1991
Edition 1992-08