Components for low-voltage surge protective devices - Part 351 : performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
€126.00
Environmental Engineering (EE) - Energy Efficiency measurement methodology and metrics for RAN Equipment (V1.1.1) - Ingénierie de l'environnement (EE) ; Méthodologie de mesure et indices de mesure d'efficacité énergétique pour équipement RAN (V1.0.0)
€78.50
Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) - Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control (BICC) Protocol or ISDN User Part (ISUP) [ITU-T Recommendation Q.1912.5, modified] (Endorsement of the English version EN 383001 V1.1.1 (2006-06) as German standard).
€16.45
White Space Devices (WSD) - Wireless Access Systems operating in the 470 MHz to 790 MHz TV broadcast band - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU (Endorsement of the English version EN 301 598 V2.1.1 (2018-01) as German standard).
IEC 61643-311:2013 Components for low-voltage surge protective devices - Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
€244.00
IEC 61643-312:2013 Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes
€186.00
IEC 61643-312:2013/COR1:2013 Corrigendum 1 - Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes
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IEC 61643-351:2016 Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
IEC 61643-352:2018 Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
Components for low-voltage surge protection - Part 352 : selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
€111.67
Télécommunication. Terminaux. Règles de numérotation et d'adressage des équipements terminaux.
€56.50
White Space Devices (WSD) - Wireless Access Systems operating in the 470 MHz to 790 MHz TV broadcast band - Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive (Endorsement of the English version EN 301 598 V1.1.1 (2014-04) as German standard).
TV White Space Devices (TVWSD) - Wireless Access Systems operating in the 470 MHz to 694 MHz TV broadcast band - Harmonised Standard for access to radio spectrum (Endorsement of the English version EN 301 598 V2.2.1 (2022-03) as a German standard).
€0.00
Telecommunication network equipment - Harmonised Standard for ElectroMagnetic Compatibility (EMC) requirements (Endorsement of the English version EN 300 386 V2.2.1 (2022-09) as a German standard).
The relation between the sone scale of loudness and the phon scale of loudness level
€269.00
