BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWITH 4-WIre analogue leased line (A4S). Connection characteristics and network interface presentation.

Die Norm herausgegeben am 20.11.1997

Access and Terminals (AT); Special quality voice bandwidth 4-wire analogue leased line (A4S); Connection characteristics and network interface presentation (Endorsed by AENOR in February of 2004.)

Die Norm herausgegeben am 1.2.2004

BUSINESS TELECOMMUNCATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE BANDWIDTH 4-WIRE ANALOGUE LEASED LINES (A4O AND A4S). TERMINAL EQUIPMENT INTERFACE.

Die Norm herausgegeben am 20.11.1997

Access and Terminals (AT); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Terminal equipment interface (Endorsed by AENOR in February of 2004.)

Die Norm herausgegeben am 1.2.2004

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Wide band audio links; Part 1: Technical characteristics and test methods (Endorsed by AENOR in September of 2004.)

Die Norm herausgegeben am 1.9.2004

Electromagnetic compatibility and Radio spectrum Matters (ERM); Wide band audio links. Part 2: Harmonized EN under article 3.2 of the R&TTE Directive.

Die Norm herausgegeben am 31.1.2002

RADIO EQUIPMENT AND SYSTEMS (RES). WIDE BAND AUDIO LINKS. TECHNICAL CHARACTERISTICS AND TEST METHODS.

Die Norm herausgegeben am 21.5.1999

Broadband Integrated Services Digital Network (B-ISDN);Broadband Virtual Path Service (BVPS);Part 1: BVPS for Permanent communications (BVPS-P) (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Broadband Integrated Services Digital Network (B-ISDN);Broadband Virtual Path Service (BVPS);Part 2: BVPS for Reserved communications (BVPS-R) (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Satellite Earth Stations and Systems (SES);Test methods for Very Small Aperture Terminals (VSATs) operating in the 11/12/14 GHz frequency bands (Endorsed by Asociación Espanola de Normalización in September of 2022.

Die Norm herausgegeben am 1.9.2022