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公开(公告)号:EP0727048A1
公开(公告)日:1996-08-21
申请号:EP94930428.0
申请日:1994-09-16
CPC分类号: G06F11/221 , G01R31/11 , G01R31/2822
摘要: A system interface fault isolator uses time domain reflectometry test techniques to isolate faults from only one end of a cable, a cable string or component without requiring removal of the cable or component from the system interface. A separate maintenance control unit (2) includes a mass storage means (16) for storing TDR or VSWR signatures of a variety of systems board connected to the cable or component to be tested. VSWR data is obtained by processing the TDR data using software built in the maintenance control unit (2). The control unit is programmable to accommodate a variety of different system interfaces, and bit status data can be downloaded directly to the control unit. Two adaptors (6) are also provided, one of which is connected to the control unit to analyze a multi-line digital bus, and the other of which allows differential TDR measurements to be taken by the SI-FI on an MIL-STD-1553 bus.
摘要翻译: 系统接口故障隔离器使用时域反射测试技术来隔离电缆,电缆串或组件上的故障,而不需要从系统接口中去除电缆或组件。 单独的维护控制单元(2)包括用于存储连接到待测试的电缆或组件的各种系统板的TDR或VSWR签名的大容量存储装置(16)。 VSWR数据是通过使用内置于维护控制单元(2)中的软件处理TDR数据而获得的。 控制单元可编程以适应各种不同的系统接口,位状态数据可直接下载到控制单元。 还提供了两个适配器(6),其中一个适配器连接到控制单元以分析多线数字总线,另一个允许差分TDR测量由SI-FI在MIL-STD- 1553巴士。