Transmission and Multiplexing (TM) - Digital Radio Relay Systems (DRRS) - Synchronous Digital Hierarchy (SDH); system performance monitoring parameters of SDH DRRS (Endorsement of the English version EN 301129 V 1.1.2 (1999-05) as German standard)
Edition 2000-04

Synchronous Digital Hierarchy (SDH) - Unidirectional performance monitoring for the network element view (Endorsement of the English version EN 301155 V 1.1.1 (1998-05) as German Standard)
Edition 1999-12

Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) - SDH leased lines; Connection characteristics (Endorsement of the English version EN 301164 V 1.1.1 (1999-05) as German standard)
Edition 2000-06

Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) ; SDH leased lines - Network and terminal interface presentation (Endorsement of the English version EN 301165 V 1.1.3 (2002-08) as German standard)
Edition 2003-08

Fixed Radio Systems - Point-to-point equipment; Plesiochronous Digital Hierarchy (PDH) - Low and medium capacity and STM-0 digital radio systems operating in the frequency bands in the range 3 GHz to 11 GHz (Endorsement of the English version EN 301216 V 1.2.1 (2001-07) as German standard)
Edition 2002-01

Telecommunications Management Network (TMN) - Performance monitoring for Plesiochronous Digital Hierarchy (PDH) interfaces - Information model for the Network Element (NE) view (Endorsement of the English version EN 301384 V 1.1.2 (2001-02) as German standard)
Edition 2001-12

Fixed Radio Systems - Point-to-point equipment - Plesiochronous Digital Hierarchy (PDH) - Low and medium capacity digital radio systems operating in the frequency band 48,5 GHz to 50,2 GHz (Endorsement of the English version EN 301387 V 1.2.1 (2001-02) as German standard)
Edition 2003-04

Transmission and multiplexing (TM) - Optical interfaces for equipments and systems relating to the synchronous digital hierarchy (SDH) [ITU-T Recommendation G.957 (1995) modified] (Endorsement of the English version ETS 300232:1993 + A1:1996 as German standard)
Edition 2000-06

Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) - SDH information model for the Network Element (NE) view; English version ETS 300304:1997
Edition 1997-12

Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) information model - Connection supervision function (Higher order Connection Supervision/Lower order Connection Supervision (HCS/LCS)) for the Network Element (NE) view; English version ETS 300484:1996
Edition 1997-12