DIN EN 300766:2002-01
Действует
Access and Terminals (AT) - Multiple 64 kbit/s digital unrestricted leased lines with octet integrity presented at a structured 2048 kbit/s interface at either or both ends (D64M) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300766 V 1.2.1 (2001-07) as German Standard)
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