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Related to E1: The analog side (part 1)
Introduction to the X.21 interface
Introduction to the X.21 interface
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Datex-L: The German CSPDN (Circuit Switched Public…
Datex-L: The German CSPDN (Circuit Switched Public Data Network)
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ISDN B-Channel protocols (X.75, V.120, V.110, T.70,…
ISDN B-Channel protocols (X.75, V.120, V.110, T.70, ...)
64 min