Use of a measuring instrument having a 5-ms time constant (integrating time) is recommended so as to detect, in particular, the presence of short high-level noise bursts, such as those caused by power supplies and by the equipment. Administrations should
ITU-T G.442-1989由国际电信联盟 IX-ITU 发布于 1989-01-01。
ITU-T G.442-1989 在中国标准分类中归属于: M31 载波通信设备,在国际标准分类中归属于: 35.200 接口和互连设备。
非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 ITU-T G.442-1989 前三页,或者稍后再访问。
点击下载后,生成下载文件时间比较长,请耐心等待......
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号