This paper introduces the component and principle of Digital Program Control Exchange Experimental System, as well as the realization of the hardware and software.

介绍一种数字程控交换实验系统的组成和原理，以及系统硬件和软件的实现。

youdao

This paper introduces the component and principle of Digital Program Control Exchange Experimental System, as well as the realization of the hardware and software.

介绍一种数字程控交换实验系统的组成和原理，以及系统硬件和软件的实现。

youdao