METHOD AND APPARATUS FOR PARTIAL DUPLEX PROTECTION SWITCHING BY USING SINGLE SPLITTER IN PON
    1.
    发明申请
    METHOD AND APPARATUS FOR PARTIAL DUPLEX PROTECTION SWITCHING BY USING SINGLE SPLITTER IN PON 审中-公开
    通过在PON中使用单分离器进行部分双重保护切换的方法和装置

    公开(公告)号:US20080131124A1

    公开(公告)日:2008-06-05

    申请号:US11948933

    申请日:2007-11-30

    IPC分类号: H04J14/00

    摘要: A method and apparatus for duplex protection switching by using a single splitter in a passive optical network (PON) are provided. The apparatus for duplex protection switching in a PON, in which a single optical line termination (OLT) and many optical network terminations (ONTs) are connected together in a multiple-access manner, includes: a 2:2 splitter connected to two PON line terminations (LTs) in the OLT; and two N:1 splitters which are connected to the 2:2 splitter, and each of which is connected to two PON LTs in the ONT. According to the method and apparatus, an economical effect can be provided in which two links, an operational link and a protection link, in the PON can provide a partial duplex function at a lower cost. Also, a protection switching time can be reduced by simplifying a restoration process so that when an error is detected, an operational state is returned by protection switching.

    摘要翻译: 提供了一种通过在无源光网络(PON)中使用单个分离器进行双工保护切换的方法和装置。 其中单个光线路终端(OLT)和许多光网络终端(ONT)以多址方式连接在一起的PON中的双工保护交换装置包括:连接到两条PON线路的2:2分路器 终端(LT); 和两个N:1分路器,它们连接到2:2分路器,并且每个分配器连接到ONT中的两个PON LT。 根据该方法和装置,可以提供PON中的两个链路,操作链路和保护链路可以以更低成本提供部分双工功能的经济效果。 此外,通过简化恢复处理,可以减少保护切换时间,使得当检测到错误时,通过保护切换返回操作状态。