Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 5: Protocol Implementation Conformance Statement (PICS) proforma specification for the frame relay protocol; English version ETS 300402-5:1996
Edition 1997-04

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

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol, Circuit mode basic services, Data Link Layer (DLL) - Part 1: Test Suite Structure and Test Purposes (TSS&TP); English version ETS 300804-1:1998
Edition 1998-12

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

Road vehicles - Vehicle to grid communication interface - Part 10: Physical layer and data link layer requirements for single-pair Ethernet (ISO/DIS 15118-10:2024); English version prEN ISO 15118-10:2024
Edition 2024-02

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 6: Test Suite Structure and Test Purposes (TSS&TP) specification for the general protocol; English version ETS 300402-6:1997
Edition 1997-11

Road vehicles - Vehicle to grid communication interface - Part 5: Physical layer and data link layer conformance test (ISO 15118-5:2018); English version EN ISO 15118-5:2019, only on CD-ROM
Edition 2019-08

Industrial communication networks - Fieldbus specifications - Part 3-28: Data-link layer service definition - Type 28 elements (( IEC 61158-3-28:2023) EN IEC 61158-3-28:2023) (german version)
Edition 2024-07-01

Industrial communication networks - Fieldbus specifications - Part 4 7 : data-link layer protocol specification - Type 7 elements
Edition 2015-02-07

Industrial communication networks - Fieldbus specifications - Part 3-14 : data-link layer service definition - Type 14 elements
Edition 2015-01-10