TESTING TELEPHONE LINES

An automatic remote line testing device at subscribers premises enables a telephone line (2-wire or 4-wire) to be tested from the exchange when the subscriber has equipment connected to the other end via a line isolating arrangement (TRANS) even when the equipment is providing a short or open circui...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	BERNARD STUART EARL MILLS
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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