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专利内容由知识产权出版社提供
专利名称：T EST ER 发明人：HIROSE NORIAKI 申请号：JP3776282 申请日：19820310 公开号：J P S58154 679A 公开日：19830914
摘要：PURPOSE:To detect the disconnection of a connection cable easily and precisely in a short time and to prevent the generation of erroneous decision by detecting the disconnection of the connection cable in a detecting circuit under the condition that the connector of the connection cable on the side of a device to be tested is connected to a disconnection checking connector. CONSTITUTION:When a connector 20 of a device to be tested is connected to a connector 9 of a device 7 to be tested and a disconnection checking switch 11a of an operation display part 11 is depressed to input a disconnection checking signal to a microcomputer part 14 through an I/O interface part 12. After decoding the disconnection checking signal inputted to the microcomputer part 14, the microcomputer part 14 oututs a command to check the short circuit of a conductor group series circuit of a connection cable 18 and the connectors 19, 20 by a detecting circuit to an I/O interface part 13. If the connectors 19 and 20 are connected, the conductor group series circuit formed by a connecting circuit 23 is short circuited to turn on a photocoupler. If any one disconnection exists, the conductor group series circuit is disconnected to turn off the photocoupler.
申请人：TOKYO SHIBAURA DENKI KK
更多信息请下载
专利名称：T EST ER 发明人：HIROSE NORIAKI 申请号：JP3776282 申请日：19820310 公开号：J P S58154 679A 公开日：19830914
摘要：PURPOSE:To detect the disconnection of a connection cable easily and precisely in a short time and to prevent the generation of erroneous decision by detecting the disconnection of the connection cable in a detecting circuit under the condition that the connector of the connection cable on the side of a device to be tested is connected to a disconnection checking connector. CONSTITUTION:When a connector 20 of a device to be tested is connected to a connector 9 of a device 7 to be tested and a disconnection checking switch 11a of an operation display part 11 is depressed to input a disconnection checking signal to a microcomputer part 14 through an I/O interface part 12. After decoding the disconnection checking signal inputted to the microcomputer part 14, the microcomputer part 14 oututs a command to check the short circuit of a conductor group series circuit of a connection cable 18 and the connectors 19, 20 by a detecting circuit to an I/O interface part 13. If the connectors 19 and 20 are connected, the conductor group series circuit formed by a connecting circuit 23 is short circuited to turn on a photocoupler. If any one disconnection exists, the conductor group series circuit is disconnected to turn off the photocoupler.
申请人：TOKYO SHIBAURA DENKI KK
更多信息请下载