发明公开
- 专利标题： SYSTEM INTERFACE FAULT ISOLATOR TEST SET
- 专利标题（中）： 系统接口故障隔离器测试设置
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申请号： EP94930428.0申请日： 1994-09-16
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公开(公告)号： EP0727048A1公开(公告)日： 1996-08-21
- 发明人: ROLL-MECAK, Doru, T. , TEICH, Stanley
- 申请人： Grumman Aerospace Corporation
- 申请人地址： 1840 Century Park East Los Angeles, CA 90067-2199 US
- 专利权人： Grumman Aerospace Corporation
- 当前专利权人： Grumman Aerospace Corporation
- 当前专利权人地址： 1840 Century Park East Los Angeles, CA 90067-2199 US
- 代理机构： Klunker . Schmitt-Nilson . Hirsch
- 优先权： US19930144318 19931101
- 国际公布： WO1995012820 19950511
- 主分类号： G01R27
- IPC分类号： G01R27 ; G01R31 ; G06F3 ; G06F11 ; G06F13
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.
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