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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

NF Z88-453 ; NF EN 300453:2008-11-01
Access and terminal (AT) - Ordinary and Special quality voice bandwith 4-wire analogue leased lines (A4O and a4S) - Terminal equipment interface

Title (German)

Zugang und Endgeräte (AT) - Analoge Standard-Mietleitung und Mietleitung mit besonderer Qualität mit 4Dr-Schnittstelle und 3,1 kHz Bandbreite (A4O und A4S) - Endgeräteschnittstelle

Edition 2008-11-01

Original language French

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Terminology

Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

NF Z88-453 ; NF EN 300453:2008-11-01 Access and terminal (AT) - Ordinary and Special quality voice bandwith 4-wire analogue leased lines (A4O and a4S) - Terminal equipment interface

Want to learn more?

NF Z88-453 ; NF EN 300453:2008-11-01
Access and terminal (AT) - Ordinary and Special quality voice bandwith 4-wire analogue leased lines (A4O and a4S) - Terminal equipment interface