数字用户环路设备的实现

Implementation of digital subscriber loop equipment

为使远距离用户可接入交换机 ,笔者研制了数字用户环路设备。该设备采用 80 86CPU作控制系统 ,用户电路和复用电路都采用 MITEL公司生产的集成芯片 ,这使系统控制信号的输出与输入变得极为方便 ,也便于系统功能的进一步提高 (如加入交换功能 )。该设备体积小 ,性能稳定 ,安装方便 ,具有实用价值。

The implementation of digital subscriber loops equipment with microcomputer 8086CPU as a core of control system for remote subscribers to access to swiching machine is proposed. In the equipment subscriber and multiplexing circuits are the products of MITEL corporration. This design can make the input and output of system control signals convenient and enhance system performances. This equipment is compact in size, stable in functioning, easy in installment, and valuable in practice.