CAJ | 학술논문

针对目前数字交换机检测使用的协议测试技术无法检测物理层参数和故障的问题，提出通过对接口特性检测判断交换机物理层故障的思路。通过研究交换机的接口特性检测内容，分析接口特性对交换机的性能与工作状态特别是对通信可靠性的影响，为提高通信设备的可靠性提供一定的参考。给出了使用通用测试仪器对接口阻抗与信号电平和回波损耗进行检测的方法，在实际使用中操作简单，使用方便。
침대목전수자교환궤검측사용적협의측시기술무법검측물리층삼수화고장적문제，제출통과대접구특성검측판단교환궤물리층고장적사로。통과연구교환궤적접구특성검측내용，분석접구특성대교환궤적성능여공작상태특별시대통신가고성적영향，위제고통신설비적가고성제공일정적삼고。급출료사용통용측시의기대접구조항여신호전평화회파손모진행검측적방법，재실제사용중조작간단，사용방편。
For the situation that protocol testing technology used in detection of digital exchanger can not detect physical layer parameters and faults,a method to determine the physical layer faults of digital exchanger by detecting the interface char-acteristics is put forward in this paper. Based on the research of the detection contents of the interface characteristics for digital exchanger,the effect of interface characteristics on the performance and working state,especially the communication reliability, of digital exchanger were analyzed. It provides a reference for improving the reliability of the communication equipments. A meth-od to detect interface impedance,signal level and return loss by a universal testing instrument is proposed,which is simple and easy to operate.