本文介绍了用“电脑”自动检测电话交换机接通率和准确率的全部过程,着重介绍了该测试仪总体方案的构思,并且给出了硬件接口逻辑和测试软件的流程图,经过在现场联机运行,证明工作可靠、结构简单、自动化程度较高,受到了现场的欢迎。 This paper introduces the whole process of automatically detecting the switch-on rate and accuracy of a telephone switch by using a “computer.” The concept of the overall solution of the tester is emphatically introduced. The flow chart of hardware interface logic and test software is given. Running, proven work reliable, simple structure, a high degree of automation, has been welcomed by the scene.