JPS596538B

An optical repeater monitoring system for a digital signal transmission circuit utilizing an optical fiber transmission cable, in which a terminal station at the extreme end of the cable transmits the repeater recognition signal for designating the particular repeater to be tested and the test signa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NIINO YASUHIKO, WAKABAYASHI HIROHARU
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	An optical repeater monitoring system for a digital signal transmission circuit utilizing an optical fiber transmission cable, in which a terminal station at the extreme end of the cable transmits the repeater recognition signal for designating the particular repeater to be tested and the test signal following immediately after said repeater recognition signal to the optical fiber transmission cable, the repeater thus designated by said repeater recognition signal composes the return optical path in the repeater by switching ON an optical switch for reflecting said repeater recognition signal and the repeater test signal to the terminal station, and the terminal station then analyzes the returned repeater test signal to determine the error rate of the digital signal in the cable.