Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1435-2007 Testing Methods for Soft switch Equipments 3060.0 via email in 1~3 business day valid
YD/T 1925-2009 The Requirements for H.248-Based IP User Terminal Device 180.0 via email in 1~3 business day valid
YD/T 539-1992 Fundamental Parameters of Synchronous Data Multiplexing Scheme Without Envelope Structure 60.0 via email in 1~3 business day valid
GB/T 32632.2-2016 Information accessibility - Part 2: Principles for barrier - free design of communication terminal equipment 395.0 via email in 1~5 business day valid
YD/T 564-1992 Technical requirements and test methods for toll service boards (Toll recording boards enquiry desks) In manual toll telephone swiching eqiupments 75.0 via email in 1~3 business day valid
YD/T 1603.3-2007 Testing Methods for 2GHz Digital Cellular Mobile Communications Network Management System (NMS)-Element Management System (EMS)Interface Information Model Consistency Test Part 3:WCDM 1920.0 via email in 1~3 business day valid
YD/T 1890-2009 Technical Requirements and Evaluation Methods for Assistive Technology of Information Accessibility in Information Terminals 360.0 via email in 1~3 business day valid
CNCA 07C-20031-2001 via email in business day valid
YD/T 1965-2009 Requirements and Measurement Methods of Electromagnetic Compatibility for Broadband Customer Network Equipment and Auxiliary Equipment based on Telecommunication network 240.0 via email in 1~3 business day valid
GB/T 14733.9-2008 Terminology for telecommunication - Radio wave propagation 810.0 via email in 1~3 business day valid
GB/T 14733.7-2008 Terminology for telecommunication - Oscillations,signals and related devices 830.0 via email in 1~3 business day valid
YD/T 1432-2006 General Technical Requirements for Integrated Access Device Management System Based on Softswith 1680.0 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YD/T 1819-2008 Integrative Gather Frame Which Used in Communication Equipment 150.0 via email in 1~3 business day superseded
YD/T 1433-2006 Testing methods for Intergrated Access Device Management System (IADMS)Based on Softswitch 840.0 via email in 1~3 business day valid
GB/T 1417-1978 terminology for telecommunications equipment 2250.0 via email in 1~3 business day valid
YD/T 566-1992 Technical Requirement and Test Method for Monitors Desk in Manual Toll Telephone Switching Equipments 45.0 via email in 1~3 business day valid
YD/T 569-1992 Technical Requirements and Test Methods for Ringing Power Sources Alarm and Distribution Frame in Manual Toll Telephone Switching Equipments 45.0 via email in 1~3 business day valid
YD/T 562-1992 General Technical Requirements and Test Methods for Manual Toll Telephone Switching Equipments 135.0 via email in 1~3 business day valid
SJ 20923-2005 Method of objective speech quality assessment based on a perceptual measure for military communication equipments 345.0 via email in 1~5 business day valid
YD/T 282-2000 General reliability test methods for communication equipment 315.0 via email in 1~5 business day valid
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