Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
YD/T 1990-2009 General technical requirements for Optical Transport Network $1080.00 via email in 1~3 business day superseded
YD/T 1991-2009 Technical requirements for N×40Gbit/s optical wavelength division multiplexing （WDM） systems $420.00 via email in 1~3 business day superseded
YD/T 1992-2009 Test specifications for SDH-based multi-service transport platform (MSTP) － Interoperability $330.00 immediately valid
YD/T 2003-2009 Technical Requirements for Reconfigurable Optical Add Drop Multiplexing (ROADM) Equipment $630.00 via email in 1~3 business day superseded
YD/T 2022-2009 Technical requirements for time synchronization equipment $210.00 via email in 1~3 business day valid
YD/T 4172-2022 Technical specification for slicing packet network(SPN) equipment $510.00 via email in 1~5 business day valid
YD/T 744-2009 Technical requirements and test methods for digital microwave telecommunication equipments（systems）of plesiochronous digital hierarchy （PDH） $480.00 via email in 1~3 business day valid
YD/T 847-1996 Frame Structures of 64 -1920kbit/S Channels in Audiovisual Telecommunication Services $390.00 via email in 1~3 business day valid
YD/T 985-1998 Regulations for Establishment of Communications Between Audiovisual Terminals With 3 Or More Digital Channels At Below 1930kbit/S $570.00 via email in 1~3 business day valid
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