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YD 5215-2015.Acceptance Speeifications for Wircless local Area Net work Engincer...

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YD 5060-2010.The Collection of Design Drawings for Seismic Installation of Telec...

行业标准2023.08.04

YD 5102-2010.Design Specifications for Telecommunication Cable Line Engineering....

行业标准2023.08.04

YD 5167-2009.Temporary Specification of Engineering Design for Noise Control of...

行业标准2023.08.04

YD 610-1993.1主题内容与适用范围YD 610规定了PCM基群信令接口设备的设备分类,技术要求和测试方法。YD 610适用于采用随路信令方式的基群信令...

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YD 5054-2010.Classification Standard for Seismic Protection of Telecommunication...

行业标准2023.08.04