Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1733-2008 Security Protection Testing Requirements for Fixed Communication Network 270.0 via email in 1~3 business day valid
YD/T 1749-2008 Security Protection Testing Requirements for Signalling Network 240.0 via email in 1~3 business day valid
YD/T 2039-2009 Authentication mechanism of end-to-end data communication for application in Mobile Network 480.0 via email in 1~3 business day valid
YD/T 1755-2008 Classified Security Protection Testing Requirements for Telecom Network and Internet for Physics Environment 150.0 via email in 1~3 business day valid
YDN 121-1999 Technical Specifications for SDH Network Synchronous State Information 540.0 via email in 1~3 business day valid
YD/T 1757-2008 Classified Management Security Protection Testing Requirements for Telecom Network and Internet 360.0 via email in 1~3 business day valid
YDN 033-1997 Technical Requirements for Local Telephone Network Management 450.0 via email in 1~3 business day valid
YD/T 1748-2008 Security Protection Requirements for Signalling Network 180.0 via email in 1~3 business day valid
GB/T 16162-2009 Terms for global maritime distress and safety system 720.0 via email in 1~8 business day valid
YD/T 1741-2008 Security Protection Testing Requirements for Value Added Service Network (Intelligent Network) 240.0 via email in 1~3 business day valid
YD/T 1728-2008 Security Protection Management Guide for Telecom Network and Internet 135.0 via email in 1~3 business day valid
GB/T 29198-2012 Technical requirements of adaptation layer of No.7 signalling interworking with IP—MTP2 peer-to-peer adaptation layer 460.0 via email in 1~3 business day valid
YD/T 2038-2009 Key management of end-to-end data communication for application in mobile network 180.0 via email in 1~3 business day valid
YD/T 1729-2008 Implementation Guide for Classified Security Protection of Telecom Network and Internet 330.0 via email in 1~3 business day valid
YDN 100-1998 Technical Specifications for ATM Network Management System - Management Part of Network (Tentative Specifications) 1440.0 via email in 1~3 business day valid
DB31/T 534-2011 Energy-saving standards for communication operations systems 90.0 via email in 1~3 business day valid
YD/T 1738-2008 Security Protection Requirements for Value Added Service Network (Messaging Network) 180.0 via email in 1~3 business day valid
YD/T 788-1995 Test Chart for Facsimile Transmission No.2 60.0 via email in 1~3 business day valid
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
YD/T 1750-2008 Security Ptotection Requirements for Synchronization Network 180.0 via email in 1~3 business day valid
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