NF ETS 300290

Business telecommunications (btc). 64 kbit/S digital unrestricted leased line with octet integrity (D64U). Terminal equipment interface.

Le présent document décrit les caractéristiques physiques et électriques et les principes d''essais correspondants pour une interface d''équipement terminal destinée à être connectée aux points de terminaison réseau des liaisons louées numériques à 64 kbit/s sans restriction, avec conservation de l''intégrité des octets.

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