Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1); Signalling network layer for circuit-mode basic call control - Part 3: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 300403-3 V 1.4.1 (2001-05) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Service description, functional capabilities and information flows - Circuit-mode 64 kbit/s bearer services [ISO/IEC 11574 (2000) modified] (Endorsement of the English version EN 300171 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control - Part 7: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (Endorsement of the English version EN 300403-7 V 2.1.2 (2000-02) as German standard)
Edition 2000-12

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

Data communication - X.25 DTE conformance testing - General principles; identical with ISO/IEC 8882-1:1996
Edition 1997-06

Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture (IEC 61375-1:2012); German version EN 61375-1:2012
Edition 2015-02

Home and Building Electronic Systems (HBES) - Part 3-1: Aspects of application; introduction to the application structure; German version EN 50090-3-1:1994
Edition 1995-04

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 2: Provision of the underlying service by a DIN ISO/IEC 8802-2 subnetwork (ISO/IEC 8473-2:1996)
Edition 1997-06

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