Attention: Your browser doesn't support javascript or you have deactivated Javascript in your browser. Please enable Javascript in your browser in order to be able to use all functions of this website.

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]

DIN EN 300453
Access and Terminals (AT) - Ordinary and special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface (Endorsement of the English version EN 300453 V 1.2.1 (2001-07) as German Standard)

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 (Anerkennung der Englischen Fassung EN 300453 V 1.2.1 (2001-07) als Deutsche Norm)

Responsible national committee

DKE/UK 722.2 - Netztechnik

Edition 2002-01

Original language German

Price from 16.60 €

Order from DIN Media

Table of contents

Contact

Rudolf Brandner

Merianstr. 28
63069 Offenbach am Main

Tel.: +49 69 6308-390
Fax: +49 69 6308-9390

Send message to contact

Economic benefits

DIN SPEC

Why do standards cost money?

Get involved in standardization

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

DIN EN 300453 Access and Terminals (AT) - Ordinary and special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface (Endorsement of the English version EN 300453 V 1.2.1 (2001-07) as German Standard)

Responsible national committee

Rudolf Brandner

Want to learn more?

DIN EN 300453
Access and Terminals (AT) - Ordinary and special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface (Endorsement of the English version EN 300453 V 1.2.1 (2001-07) as German Standard)