Hitless protection switching
    11.
    发明申请
    Hitless protection switching 有权
    无限保护切换

    公开(公告)号:US20050144504A1

    公开(公告)日:2005-06-30

    申请号:US10815723

    申请日:2004-04-02

    CPC classification number: H04B1/74

    Abstract: A network element with equipment protection has first and second redundant signal paths for first and second redundant signals; a selector for selecting either of the two redundant signals as active; and first and second transition monitors coupled to the first and second signal paths, respectively, for monitoring the first and second signals for bit level transitions. The selector is controlled by the transition monitors to alter selection in the case that the selected signal does not contain bit level transitions while the non-selected signal does.

    Abstract translation: 具有设备保护的网络元件具有用于第一和第二冗余信号的第一和第二冗余信号路径; 用于选择两个冗余信号中的任一个作为活动的选择器; 以及分别耦合到第一和第二信号路径的第一和第二转换监视器,用于监视第一和第二信号以进行位电平转换。 在选择的信号不包含位电平转换而非选择信号的情况下,选择器由转换监视器控制以改变选择。

    Network element and input/output device for a synchronous transmission system
    12.
    发明授权
    Network element and input/output device for a synchronous transmission system 失效
    用于同步传输系统的网元和输入/输出设备

    公开(公告)号:US06208648B1

    公开(公告)日:2001-03-27

    申请号:US09029814

    申请日:1998-05-08

    CPC classification number: H04J3/1611 H04J3/0685

    Abstract: The invention concerns a network element and an input-output unit (1) for a synchronous transmission system according to the standard for Synchronous Digital Hierarchy or according to the comparable Synchronous Optical Network (SONET) standard. The input-output unit (1) contains a signal processing device (2) that has a reception data memory (5), a transmission data memory (7), a control unit (6) and a processor (3). The processor (3) is a digital signal processor which essentially carries out the processing of a STM-N signal.

    Abstract translation: 本发明涉及根据同步数字体系标准的同步传输系统的网络元件和输入输出单元(1),或者根据可比较的同步光网络(SONET)标准。 输入输出单元(1)包括具有接收数据存储器(5),发送数据存储器(7),控制单元(6)和处理器(3)的信号处理设备(2)。 处理器(3)是数字信号处理器,其基本上执行STM-N信号的处理。

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