Broadband Integrated Services Digital Network (B-ISDN) - AAL Type 2 Signalling protocol; Capability Set 1 - Part 1: Protocol specification (ITU-T Recommendation Q.2630.1 (1999), modified) (Endorsement of the English version EN 301816-1 V 1.1.1 (2000-11) as German standard)
Edition 2001-05

Broadband Integrated Services Digital Network (B-ISDN) - AAL, Type 2: Signalling protocol; Capability Set 1 - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301816-2 V 1.1.1 (2001-09) as German Standard)
Edition 2002-12

Broadband Integrated Services Digital Network (B-ISDN) - AAL, Type 2 Signalling protocol; Capability Set 1 - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version EN 301816-3 V 1.1.1 (2001-09) as German Standard)
Edition 2002-12

Broadband Integrated Services Digital Network (B-ISDN) - AAL Type 2 Signalling protocol; Capability Set 1 - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301816-4 V 1.1.2 (2002-04) as German Standard)
Edition 2002-12

Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; section 2: Use of basic standards (OSI layers 1-4) (IEC 60870-6-2:1995); German version EN 60870-6-2:1995
Edition 1997-06

Open systems interconnection - Protocol for providing the connectionless-mode network service - Part 4: Provision of the underlying service by a subnetwork that provides the OSI data link service; identical with ISO/IEC 8473-4:1995
Edition 1996-06

Open Systems Interconnection - Protocol for providing the connectionless-mode network service - Part 3: Provision of the underlying service by an X.25 subnetwork; identical with ISO/IEC 8473-3:1995
Edition 1996-06

Open systems interconnection; internal organization of the network layer; identical with ISO 8648:1988
Edition 1990-07

Open Systems Interconnection - Protocol for providing the connectionless-mode network service - Part 2: Provision of the underlying service by a DIN ISO/IEC 8802-2 subnetwork (ISO/IEC 8473-2:1996)
Edition 1997-06

Cellular Digital Packet Data (CDPD) System Specification Subnetwork Dependent Convergence Protocol
Edition 2001-07