Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 1: Layer 1 specification (Endorsement of the English version EN 300012-1 V 1.2.2. (2000-05) as German standard)— 1 стр.
Integrated Services Digital Network (ISDN); Basic User Network Interface (UNI) - Part 1: Layer 1 specification (Endorsement of the English version ETS 300012-1:1998 as German Standard)
Customer premises cabling for information technology - Part 1: ISDN basic access; German version EN 50098-1:1998 + A1:2002 + Corrigendum January 2003— 26 стр.
