Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1970.6-2009 Maintenance Requirements of Power Supply for Telecommunication Stations/Sites Part 6:Generator sets System 105.0 via email in 1~3 business day valid
YD/T 1677-2013 Test method for 800MHz/2GHz cdma2000 digital cellular mobile telecommunication network equipment - High data rate packet data (Phase 2) - Access network (AN) via email in business day valid
YD/T 1970.10-2009 Maintenance Requirements of Power Supply for Telecommunication Stations/Sites Part 10:Valve Regulated Lead Acid Battery 105.0 via email in 1~3 business day valid
YD/T 1291-2003 Protocol of peer to peer short message interworking between networks 150.0 via email in 1~3 business day valid
YD 5004-1994 Standars of Engineering Design for Digital Micyowave Relay Teiecomunication System(PDH Part) 360.0 via email in 1~3 business day abolished
YD/T 1258.3-2003 The series of indoor optical fibre cables part 3:dual-fibre optical cable 270.0 via email in 1~3 business day abolished
YD/T 1051-2010 General reqiurements for power supply system of telecommunication stations/sites 360.0 via email in 1~3 business day valid
YD 5188-2010 Provisional Supervision Specification of Installation Engineering for Internet via email in business day valid
YD/T 1331-2004 Techincal requirement of Service Switching Point(SSP)equipment for Wireless Intelligent Network (WIN)phase2 in 800MHz CDMA digital cellular mobile telecommunication network 540.0 via email in 1~3 business day valid
YD/T 1550.8-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface(Phase I)Part 8:User Plane Protocol for DCH Data Streams 330.0 via email in 1~3 business day valid
YD/T 1825-2008 Technical Requirement of IPTV Terminal Device Set-Card Separation 390.0 via email in 1~3 business day valid
YD/T 799-2010 Valve-regulated lead acid batteries for telecommunications 270.0 via email in 1~3 business day valid
YD/T 2732-2014 via email in business day valid
YD/T 1842-2009 Test Method for User Equipment HSUPA Protocol Conformance of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network via email in business day abolished
YD/T 1739-2008 Security Protection Testing Requirements for Value Added Service Network (Messaging Network) 210.0 via email in 1~3 business day valid
YDN 026-1997 Technical Requirements for SDH Transmission Network - Input Business and Maintainability Limit Value of SDH Digital Channel and Reuse Section 360.0 via email in 1~3 business day valid
YDB 135-2013 Technical Requirement Specification for The Client Of Mobile Application Store via email in business day valid
YD/T 5110-2015 via email in business day valid
YD/T 3041-2016 via email in business day valid
YDB 020-2008 Requirement on mobile location service in 2ghz td-scdma systems 630.0 via email in 1~3 business day valid
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