公开(公告)号：US6078646A

公开(公告)日：2000-06-20

申请号：US400956

申请日：1999-09-22

申请人： Peter J. McLaughlin ,  Warren Schmitt ,  Anthony M. Kolodzinski

发明人： Peter J. McLaughlin ,  Warren Schmitt ,  Anthony M. Kolodzinski

IPC分类号： H04M1/24 ,  H04M1/56

CPC分类号： H04M3/301 ,  H04M3/42059

摘要： The invention relates to a device and a method for testing of telephone a subscriber loop/access line using a central test head and a series of remote test devices. In this case, the test head sends a telephone call to a remote test device, the test device contains a caller identification circuit and micro controller designed to recognize telephone calls from the test head. Therefore, when this remote test device receives this call, it disconnects an attached telephone and it signals a test and measurement circuit to start conducting a test(s) with the test head. This series of tests could be used, as an example, to determine whether there is excessive circuit loss, C-notched noise, C message weighted noise or 3 Khz flat noise on a subscriber loop/access line. This testing device could save an access provider from having to send a representative to the customer/subscriber locations to test the subscriber loop/access line.

摘要翻译： 本发明涉及一种使用中央测试头和一系列远程测试设备测试电话用户环路/接入线路的设备和方法。 在这种情况下，测试头向远程测试设备发送电话呼叫，测试设备包含一个主叫识别电路和设计用于识别来自测试头的电话呼叫的微控制器。 因此，当这个远程测试设备接收到该呼叫时，它断开连接的电话，并且它向测试和测量电路发出信号，以开始与测试头进行测试。 作为示例，可以使用该系列测试来确定在用户环路/接入线路上是否存在过多的电路损耗，C-缺口噪声，C消息加权噪声或3Kz平坦噪声。 该测试设备可以保存接入提供商不必将代表发送到客户/订户位置来测试用户环路/接入线路。