Printed circuit board capable of being inserted and withdrawn on on-line
status
    11.
    发明授权
    Printed circuit board capable of being inserted and withdrawn on on-line status 失效
    能够在线状态插入和取出的印刷电路板

    公开(公告)号:US4200865A

    公开(公告)日:1980-04-29

    申请号:US872794

    申请日:1978-01-27

    摘要: A printed circuit board loaded with an electronic circuit and constructed to be capable of being inserted in and withdrawn from a bus line on on-line status, in which the input to or the output from the printed circuit board is locked out in response to the presence of two conditions, one is the presence of a demand for insertion or withdrawal of the printed circuit board on on-line status and the other is the presence of such a condition that no information exchange is being made between the printed circuit board and other unit connected with the bus line, thereby releasing the electrical connection between the bus line and the printed circuit board so that the printed circuit board can now be inserted in or withdrawn from the bus line on on-line status.

    摘要翻译: 一种印刷电路板,其装有电子电路并被构造成能够在线上状态下从总线插入和取出,其中响应于所述印刷电路板的输入或从印刷电路板的输出被锁定 存在两种情况,一种是在线状态下存在对印刷电路板的插入或取出的需求,另一种是存在这样的情况,即在印刷电路板和其它电路板之间不进行信息交换 单元与总线连接,从而释放总线与印刷电路板之间的电气连接,使得印刷电路板现在可以在线状态插入总线或从总线上取出。