Token ring fault detection

A user terminal (12) is coupled to a token ring (11) via a cross-point circuit (15) and a trunk coupling unit (14). The signal paths (13a, 13b) between the terminal and the cross-point circuit and between the cross-point circuit and the coupling unit are supplied each with a phantom current, there b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ANDREW PAUL LEFEVRE, FRANCIS YUN-TAI HUNG, PETER JOHN LEE
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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