Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1267-2003 Technical specification for synchronization netwrok based on SDH transport network 825.0 via email in 1~8 business day valid
YDN 119.1-1999 Test Specification of China Intelligent Network Equipment - Service Switching Point (SSP) Part 885.0 via email in 1~8 business day valid
YD/T 722-1994 Polyolefin Insulated, PVC Sheathed, Parallel-Twin Copper-Clad Steel Wires for Telephone Subscribers Communication 120.0 via email in 1~3 business day valid
YD/T 516-1992 Technical conditions for aggregate automatic monitoring system 380.0 via email in 1~3 business day abolished
YD/T 778-2011 Optical fibres distribution frame 240.0 via email in 1~3 business day valid
YD/T 706-1994 380.0 via email in 1~3 business day superseded
YD/T 2355-2011 900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network Technical Requirements and Test Methods for Digital Repeater 880.0 via email in business day valid
YD/T 3276-2017 Network operation & management indicator for LTE radio access network via email in business day valid
YD/T 1986-2009 Technical requirements for Cx/Dx/Sh interfaces in IMS system of mobile communication network 990.0 via email in 1~3 business day valid
YD/T 2593-2013 Technical requirements for multimode single standby user equipment of TD-LTE/TD-SCDMA/GSM (GPRS) 1100.0 via email in business day abolished
YD 339-1990 YN801-type lead seal tongs 180.0 via email in business day
YD/T 5176-2009 Acceptance Specification for Local Optical Fiber Cable Network of Wavelength Division Multiplexing System 1700.0 via email in business day superseded
YD/T 2518.1-2013 Test method for 2GHz WCDMA digital cellular mobile commnication network user equipment (Phase 5)of high speed packet access plus—Par 1:Basic functions,services and performance test 630.0 via email in 1~3 business day valid
YD/T 1517-2006 Testing Method for Intelligent Terminal Equipment based on IP:IP Telephone Terminal 240.0 via email in 1~3 business day valid
YD/T 1819-2008 Integrative Gather Frame Which Used in Communication Equipment 150.0 via email in 1~3 business day abolished
YD/T 3179.2-2016 via email in business day valid
YD/T 598-1992 Technical conditions of mono-mode optical fiber time-domain reflectoscopes 180.0 via email in business day
YD/T 841.1-2008 Plastic Pipe for Buried Communication Conduit Part 1:General 210.0 via email in 1~3 business day abolished
YD/T 1562-2007 Technical Requirement for 2GHz cdma2000 Digital Cellular Mobile Communication Network Equipment:High Rate Packet Data(Phase Ⅰ)Access Terminal 210.0 via email in 1~3 business day superseded
YDN 010-1996 via email in business day superseded
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