Supervisory and control system for optical repeater

Abstract

PURPOSE:To attain serial feeding of incoming/outgoing regenerative repeating circuit by applying AC coupling between incoming/outgoing supervisory control circuits to attain common communication and simultaneous operation of an AC control instruction signal. CONSTITUTION:In case of applying loopback from an incoming optical fiber F1 transmission line to a prescribed repeater R, a common regenerative repeating circuit designation code (C0) and its succeeding loopback control instruction code (C1) are set. The control instruction code C1 is received by monitor control circuits 7, 7' via a coupling capacitor 9 to control incoming/ outgoing loopback circuits 6, 6' installed for respective incoming/outgoing regenerative repeating circuits A, A'. Thus, the series feeding of the incoming/ outgoing regenerative repeating circuits is attained to constitute the loopback circuit without increasing the feeding voltage of the transmission system.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-S5666951-AJune 05, 1981Siemens AgMethod and device for detecting fault withous using address by loop closure in communication transmission section
    JP-S5762644-AApril 15, 1982Nec CorpSupervisory system for multiplex communication line

NO-Patent Citations (0)

    Title

Cited By (3)

    Publication numberPublication dateAssigneeTitle
    JP-2005347796-ADecember 15, 2005Fuji Electric Holdings Co Ltd, 富士電機ホールディングス株式会社光伝送装置及び電力変換装置
    JP-2007271496-AOctober 18, 2007Renesas Technology Corp, 株式会社ルネサステクノロジSemiconductor device manufacturing method and semiconductor device
    JP-2010041602-AFebruary 18, 2010Nec Corp, 日本電気株式会社波長分割多重装置及び波長分割多重ネットワークにおける再生中継方法