Keyboard security for a telephone attendant console
    1.
    发明授权
    Keyboard security for a telephone attendant console 失效
    电话服务台控制台的键盘安全

    公开(公告)号:US4562310A

    公开(公告)日:1985-12-31

    申请号:US594931

    申请日:1984-03-29

    IPC分类号: H04M3/62 H04M1/66

    CPC分类号: H04M3/62

    摘要: An attendant console for use with an electronic private automatic branch exchange (EPABX) includes a jack for removably connecting an attendant headset or handset to the console. A switch array in the console provides indications of attendant control action and logic circuitry connected to the switch array registers the indications. Gates are connected in series with the switch array for preventing registration of the indications in response to the attendant set being disconnected, such that control actions as may be indicated at the switch array while the attendant is away from the console are of no consequence.

    摘要翻译: 用于电子专用自动分支交换机(EPABX)的话务员控制台包括用于将话务员耳机或手机可拆卸地连接到控制台的插孔。 控制台中的开关阵列提供伴随的控制动作的指示,连接到开关阵列的逻辑电路注册指示。 门与开关阵列串联连接,用于防止响应于话务员断开连接的指示的登记,使得当话务员离开控制台时可能在开关阵列处指示的控制动作是没有任何结果的。