Digital switching system with shared analog line
    1.
    发明申请
    Digital switching system with shared analog line 有权
    具有共享模拟线路的数字切换系统

    公开(公告)号:US20050058271A1

    公开(公告)日:2005-03-17

    申请号:US10883467

    申请日:2004-07-01

    IPC分类号: H04Q3/62 H04M3/00 H04M5/00

    摘要: An auxiliary connection mechanism for allowing a Digital Switching System (DSS) to share an analog line with an analog device (via an auxiliary device port) is disclosed. The auxiliary connection mechanism includes a pair of relays for releasably connecting the auxiliary device port and the DSS to the analog line. When the analog line is idle, both the analog device and the DSS are connected to the line in ordre to receive incoming calls on the analog line. However, once one of the devices (either the analog device or the DSS) uses the line, the other device should not access the line. A busy line detect circuit is included to detect whether a device is using the line.

    摘要翻译: 公开了一种用于允许数字交换系统(DSS)与模拟设备(经由辅助设备端口)共享模拟线路的辅助连接机构。 辅助连接机构包括用于将辅助设备端口和DSS可释放地连接到模拟线路的一对继电器。 当模拟线路空闲时,模拟设备和DSS都连接到线路,以在模拟线路上接收来电。 但是,一旦设备(模拟设备或DSS)中的一个使用该线路,其他设备就不应该访问该线路。 包括忙线检测电路以检测设备是否正在使用线路。