共找到 107 条与 相关的标准,共 8 页
本标准适用于电机线圈绕组成所用之 B 类、F 类及 H 类绝缘之双层玻璃纤维覆矩形铜线(以下简称铜线)。
Double Glass-Fiber-Covered Rectangular Copper Wire
Contains performance and compatibility requirements for telephone sets intended for direct tip and ring connection to Central Office (CO) or Private Branch Exchange (PBX) lines. The requirements are based on present telecommunications plant characteristics at the telephone set interface. These requirements apply to a telephone set intended for single-party service. This standard covers equipment for general application and selected application telephones
Performance and Compatibility Requirements for Telephone Sets
Test procedure for measuring longitudinal balance of telephone equipment operating in the voice band
Performance and Compatibility Requirements for Telephone Sets
Draft trial-use standard method for measuring the magnetic field intensity around a telephone receiver
Coupling devices for power line carrier systems [VDE Specification]
Coupling devices for power line carrier systems [VDE Specification]
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