YD/T 5159-2007.Provisional Acceptance Specification for Mobile Multimedia Messag...

行业标准2023.07.31

YD/T 5160-2007.Acceptance Specification on Indoor Coverage System Installation E...

行业标准2023.07.31

YD/T 5162-2007.Drawing Gallery of Communication Conduit Transect.1总则1.0.1 “通信管道横...

行业标准2023.07.31

YD/T 5161-2007.Interim Provisions of Wireless Network Engineering Design for 900...

行业标准2023.07.31

YD/T 1818-2008.Power Supply System for Data Communication.1范围YD/T 1818规定了数据通信用电源...

行业标准2023.07.31

YD/T 1819-2008.Integrative Gather Frame Which Used in Communication Equipment.1范...

行业标准2023.07.31

YD/T 1820-2008.Telecommunication Cables - Central Office Symmetrical Cables.1范围Y...

行业标准2023.07.31

YD/T 2691-2014.Test methods for connection speed in broadband network - User exp...

行业标准2023.07.31

YD/T 5156-2007.Accepting Specification for Fixed Network Intelligence System Ins...

行业标准2023.07.31

YD/T 1800-2008.Framework of Information Security Operation Center.1范围YD/T 1800规定...

行业标准2023.07.31