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    • 40. 发明授权
    • Method of, and apparatus for, carrying out loopback test in exchange
    • 用于进行环回测试的方法和装置
    • US06259768B1
    • 2001-07-10
    • US09243385
    • 1999-02-01
    • Tomomi KatoMasatoshi TakitaKazuei OhnishiTakamitsu SaitoKosei Mano
    • Tomomi KatoMasatoshi TakitaKazuei OhnishiTakamitsu SaitoKosei Mano
    • H04M124
    • H04M3/323H04M3/08H04M3/244H04M2203/055
    • 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.
    • 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。