33.040.01

Telecommunication systems in general

33.040.20

Transmission systems

33.040.30

Switching and signalling systems

33.040.35

Telephone networks

33.040.40

Data communication networks

33.040.50

Lines, connections and circuits

33.040.60

Powerline telecommunications

33.040.99

Other equipment for telecommunication systems
IEEE 823:1989

IEEE 823:1989

Withdrawn Most Recent

IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony

€106.00

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IEEE 973:1990

IEEE 973:1990

Withdrawn Most Recent

IEEE Standard Definitions of Switching System Performance in a Telecommunications Environment

€79.00

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IEEE 1007:1991 (R1997)

IEEE 1007:1991 (R1997)

Withdrawn Most Recent

IEEE Standard Methods and Equipment for Measuring the Transmission Characteristics of Pulse-Code Modulation (PCM) Telecommunications Circuits and Systems

€258.00

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IEEE 1051:1988

IEEE 1051:1988

Withdrawn Most Recent

IEEE Recommended Practice for Parameters to Characterize Digital Loop Performance

€51.00

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IEEE 1390:1995

IEEE 1390:1995

Withdrawn Most Recent

IEEE Standard for Utility Telemetry Service Architecture for Switched Telephone Network

€138.00

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IEEE 1390.3:1999

IEEE 1390.3:1999

Withdrawn Most Recent

IEEE Standard for Automatic Meter Reading via Telephone - Network to Utility Controller

€138.00

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DIN EN 303472:2019-03

DIN EN 303472:2019-03

Active Most Recent

Environmental Engineering (EE) - Energy Efficiency measurement methodology and metrics for RAN equipment (Endorsement of the English version EN 303472 V1.1.1 (2018-10) as a German standard).

€16.45

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DIN EN 61850-7-1/A1:2019-05

DIN EN 61850-7-1/A1:2019-05

Superseded Historical

Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models (IEC 57/2035/CDV:2018); English version EN 61850-7-1:2011/prA1:2018

€288.60

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DIN EN 61850-6-2:2019-06

DIN EN 61850-6-2:2019-06

Superseded Historical

Communication networks and systems for power utility automation - Part 6-2: Configuration description language for extensions for human machine interfaces (IEC 57/1984/CD:2018); Text in German and English

€364.11

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DIN EN IEC 61850-7-420:2019-06

DIN EN IEC 61850-7-420:2019-06

Superseded Historical

Communication networks and systems for power utility automation - Part 7-420: Basic communication structure - Distributed energy resources and distribution automation logical nodes (IEC 57/1997/CD:2018); Text in English

€488.79

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DIN EN 303470:2019-06

DIN EN 303470:2019-06

Active Most Recent

Environmental Engineering (EE) - Energy Efficiency measurement methodology and metric for servers (Endorsement of the English version EN 303 470 V1.1.1 (2019-03) as a German standard).

€16.45

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DIN EN 303471:2019-07

DIN EN 303471:2019-07

Active Most Recent

Environmental Engineering (EE) - Energy Efficiency measurement methodology and metrics for Network Function Virtualisation (NFV) (Endorsement of the English version EN 303 471 V1.1.1 (2019-01) as a German standard).

€16.45

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BS 6312-2.2:1997

BS 6312-2.2:1997

Active Most Recent

Connectors for analogue telecommunication interfaces Sockets use with plugs specified in BS 6312-1 Particular requirements fixed socket-outlets used permanent wiring installations

€193.00

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BS 7940:1999

BS 7940:1999

Active Most Recent

Analogue PSTN terminal support interface

€269.00

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PD 7024:1994

PD 7024:1994

Active Most Recent

Essential requirements for terminal equipment intended for connection to unstructured digital leased circuits of the public telecommunications network using a CCITT Recommendation G.703 interface at a rate of 2048 kbit/s with a 75 ? unbalanced presentation

€269.00

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