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公开(公告)号:US5158464A
公开(公告)日:1992-10-27
申请号:US770420
申请日:1991-10-03
申请人: Glisente Landrini
发明人: Glisente Landrini
摘要: The present invention relates to the industrial field of wiring apparatus for cables and in particular to a connecting system for cables in intrinsic-safety industrial instrumentation boards. Directly on the assembling board where the intrinsic-safety modules for the protection of the process control systems are allocated, a plurality of connecting modules of the cross-wiring type are disposed to a card on which the intrinsic-safety modules relating to various protection devices are also disposed. In this manner all connecting cables coming from the various sensors distributed in an industrial plant can converge to this card in order to be sent to a central processing unit in a homogenous typology. The connecting modules are implemented on each card depending upon the plant extension and the amount of sensors present thereon.
摘要翻译: 本发明涉及用于电缆的布线装置的工业领域,特别涉及本质安全工业仪表板中电缆的连接系统。 直接安装在用于保护过程控制系统的固有安全模块的组装板上,将交叉布线类型的多个连接模块设置在其上与各种保护装置相关的本质安全模块的卡 也被处置。 以这种方式,来自分布在工业设备中的各种传感器的所有连接电缆可以收敛到该卡,以便以均匀的类型发送到中央处理单元。 连接模块根据工厂扩展和存在于其上的传感器的数量在每个卡上实现。
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公开(公告)号:US4763069A
公开(公告)日:1988-08-09
申请号:US940116
申请日:1986-12-10
申请人: Glisente Landrini
发明人: Glisente Landrini
CPC分类号: H02H9/008 , G01R31/00 , G01R31/2632
摘要: There is disclosed a barrier in which two or more Zener diodes are mounted in parallel in an encapsulated module between the leads from an input/output terminal located in a safe area to or input/output terminal in a hazardous area such as an environment having an explosive mixture of gases or dust, and a current-limiting resistor in series with an interconnected end of said diodes, wherein the circuit elements in the encapsulated module are connected individually at each end to one of a series of input/output pins extending from said module whereby they can be individually tested and the pins are adapted to be interconnected selectively externally of said module to complete the barrier circuit.
摘要翻译: 公开了一种屏障,其中两个或多个齐纳二极管并联安装在封装模块中的引线之间,位于位于安全区域中的输入/输出端子或危险区域的输入/输出端子,例如具有 气体或灰尘的爆炸性混合物和与所述二极管的互连端串联的限流电阻器,其中封装模块中的电路元件在每一端分别连接到从所述二极管的一端延伸的一系列输入/输出引脚之一 模块,由此它们可以单独测试,并且该引脚适于在所述模块外部选择性地互连以完成所述阻挡电路。
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