首页> 外国专利> coupling device for utverdering of tillstandsendring on pipelines in teleanleggningar and serskilt telefonanleggningar

coupling device for utverdering of tillstandsendring on pipelines in teleanleggningar and serskilt telefonanleggningar

机译:远距腿和锯齿状远距腿在管道上倒立到地面的连接装置

摘要

Apparatus is described for monitoring the state, e.g., with regard to polarity, of signal lines in a telecommunication system. An input circuit, by means of high resistances relative to the line resistance, connects the lines to a differential amplifier having a predetermined threshold of response. A component of the amplifier output is applied to the input so as to have a polarity opposite to that of a bias voltage coupled to the amplifier. A capacitive protective circuit connected between the signal lines provides a time delay thereby protecting against interference pulses.
机译:描述了一种用于监视例如电信系统中的信号线的状态的设备。输入电路借助于相对于线路电阻的高电阻将线路连接到具有预定响应阈值的差分放大器。放大器输出的分量被施加到输入,以便具有与耦合到放大器的偏置电压相反的极性。连接在信号线之间的电容性保护电路提供了时间延迟,从而防止了干扰脉冲。

著录项

  • 公开/公告号SE7703637A

    专利类型

  • 公开/公告日1977-10-01

    原文格式PDF

  • 申请/专利权人 * SIEMENS AG;

    申请/专利号SE19770003637

  • 发明设计人 J * BIRLMEIER;

    申请日1977-03-29

  • 分类号H04Q3/24;

  • 国家 SE

  • 入库时间 2022-08-23 00:39:07

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