European digital cellular telecommunications system (Phase 2) - Data Link (DL) layer - General aspects; English version ETS 300554:1994
Edition 1995-01

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

Distribution automation using distribution line carrier systems - Part 4-61: Data communication protocols; network layer; connectionless protocol (IEC 61334-4-61:1998); German version EN 61334-4-61:1998, Text in English
Edition 1999-08

Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; section 32: Data link layer; logical link control (LLC) (IEC 61334-4-32:1996); German version EN 61334-4-32:1996
Edition 1997-09

Distribution automation using distribution line carrier systems - Part 4-33: Data communication protocols; data link layer; connection oriented protocol (IEC 61334-4-33:1998); German version EN 61334-4-33:1998, text in English
Edition 1999-08

Distribution automation using distribution line carrier systems - Part 4-511: Data communication protocols; Systems management; CIASE protocol (IEC 61334-4-511:2000); German version EN 61334-4-511:2000, text in English
Edition 2001-05

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; signalling network layer for circuit-mode basic call control - Part 5: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user; English version ETS 300403-5:1997
Edition 1998-08

European digital cellular telecommunications system (phase 2) - Mobile radio interface signalling layer 3, general aspects; English version ETS 300556:1995
Edition 1995-08

Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; Section 42: Application protocols; Application layer (IEC 61334-4-42:1996); German version EN 61334-4-42:1996
Edition 1997-09

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol, Circuit mode basic services, Data Link Layer (DLL) - Part 2: Abstract Test Suite (ATS) specification; English version ETS 300804-2:1998
Edition 1998-12