Method of, and apparatus for, carrying out loopback test in exchange
    1.
    发明授权
    Method of, and apparatus for, carrying out loopback test in exchange 失效
    用于进行环回测试的方法和装置

    公开(公告)号:US06259768B1

    公开(公告)日:2001-07-10

    申请号:US09243385

    申请日:1999-02-01

    IPC分类号: H04M124

    摘要: A method employs simple procedures to speedily carry out loopback tests on devices that form a channel system of an exchange. The method is capable of quickly locating a fault in the exchange and allowing speedy maintenance work of the exchange. Also provided is an apparatus for achieving the method. The apparatus has a path setter (1-4), a loopback controller (1-3), and a tester (1-1), to test the devices of the channel system (1-2) of the exchange. The devices to be tested are arranged in replaceable units (1-21, 1-22). The path setter (1-4) simultaneously sets paths to sequentially connect the devices to be tested. The loopback controller (1-3) activates and releases loopback parts arranged in the devices to be tested. The tester (1-1) sends a test signal to the devices through the paths, receives the test signal looped back by the loopback parts, analyzes the received signal, and determines whether or not the devices are sound.

    摘要翻译: 一种方法采用简单的程序来快速地对形成交换机的信道系统的设备进行环回测试。 该方法能够快速定位交换中的故障并允许交换机的快速维护工作。 还提供了一种用于实现该方法的装置。 该设备具有路径设置器(1-4),环回控制器(1-3)和测试器(1-1)),用于测试交换机的信道系统(1-2)的设备。 要测试的设备被布置在可更换单元(1-21,1-22)中。 路径设置器(1-4)同时设置路径以顺序连接要测试的设备。 环回控制器(1-3)激活并释放布置在要测试的设备中的环回部件。 测试仪(1-1)通过路径向设备发送测试信号,接收环回部分环回的测试信号,分析接收到的信号,并确定设备是否正常。

    Redundant apparatus
    2.
    发明授权
    Redundant apparatus 失效
    冗余设备

    公开(公告)号:US06192485B1

    公开(公告)日:2001-02-20

    申请号:US09075315

    申请日:1998-05-08

    IPC分类号: G06F1100

    CPC分类号: G06F11/20

    摘要: In a redundant apparatus formed of an active unit and a stand-by unit, an upper unit is connected to the active unit though the connection controller in the normal operation, and controls the connection controller to switch the active unit over to the stand-by unit when a fault has occurred in the active unit. The connection controller includes a diagnosis portion which diagnoses the stand-by unit or the active unit with a test signal and notifies the result to the upper unit.

    摘要翻译: 在由有源单元和待机单元形成的冗余设备中,通过连接控制器在正常操作中将上单元连接到有源单元,并且控制连接控制器将有源单元切换到待机状态 在有效单元发生故障时单位。 连接控制器包括用测试信号诊断待机单元或有源单元的诊断部分,并将结果通知给上部单元。