Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
YD/T 1924-2009 The Requirements for SIP-Based IP User Terminal Device $180.00 via email in 1~3 business day valid
YD/T 1925-2009 The Requirements for H.248-Based IP User Terminal Device $180.00 via email in 1~3 business day valid
YD/T 1947-2009 Technical Requirement of Physical Layer for Extended Reach Ethernet based on 2D-PAM3 and 4D-PAM5 $810.00 via email in 1~3 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 $240.00 via email in 1~3 business day valid
YD/T 2020-2009 Technical requirement for subscriber database (SDB) of PSTN $210.00 via email in 1~3 business day valid
YD/T 2059-2009 Expected surges on telecommunications and signalling networks due to lightning $390.00 via email in 1~3 business day valid
YD/T 2065-2009 Information Accessibility Design Guidelines to Information Terminal Equipment for Persons with Physical Disabilities $300.00 via email in 1~3 business day valid
YD/T 282-2000 General reliability test methods for communication equipment $310.00 via email in 1~5 business day valid
YD/T 4165-2022 Technical requirement of 5G network voice service interworking $255.00 via email in 1~3 business day valid
YD/T 4177.11-2022 Application personal information collection and usage minimization and necessity evaluation specification —— Part 11:SMS Information $210.00 via email in 1~3 business day valid
YD/T 539-1992 Fundamental Parameters of Synchronous Data Multiplexing Scheme Without Envelope Structure $100.00 via email in 1~3 business day valid
YD/T 560-1992 The Wire Configurations on Poles of Open-wire for Toll Telecommunications $75.00 via email in 1~3 business day valid
YD/T 562-1992 General Technical Requirements and Test Methods for Manual Toll Telephone Switching Equipments $130.00 via email in 1~3 business day valid
YD/T 563-1992 Technical requirements and test methods for toll connecting boards And special boards in manual toll telephone switching equipments $120.00 via email in 1~3 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 $75.00 via email in 1~3 business day valid
YD/T 565-1992 Technical Requirements and Test Methods for Service Observation Desks (Quality Checking Desks) in Manual Toll Telephone Switching Equipments $184.00 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 $184.00 via email in 1~3 business day valid
YD/T 567-1992 Technical Requirement and Test Method for Exchanger of Operating Service in Manual Toll Telephone Switching Equipments $184.00 via email in 1~3 business day valid
YD/T 568-1992 Technical Requirements and Test Methods for Relay in Manual Toll Telephone Switching Equipments $75.00 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 $184.00 via email in 1~3 business day valid
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