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Position: Search valid to be valid superseded to be superseded abolished to be abolished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 939-2014 Power distribution cabinet for transmission equipment $210.00 via email in 1~3 business day valid
YD/T 940-1999 Semiconductor arrester for The over-voltage protection of telecommunications installations $160.00 via email in 1~3 business day valid
YD/T 941-1997 ISDN user-network interface supplementay service comformance testing specification $2175.00 via email in 1~5 business day valid
YD/T 942-1997 Technical specifications and test methods of paging receivers for high speed radio paging system $300.00 via email in 1~5 business day abolished
YD/T 943-1998 The Technical requirements and test methods of R.F. coaxial connectors with inner diameter of outer conductor 5.6mm 3.8mm 2.8mm $570.00 via email in 1~3 business day superseded
YD/T 943.1-2009 Radio-frequency coaxial connector Part 1: Type T5.6(L9) $210.00 via email in 1~3 business day valid
YD/T 943.2-2009 Radio-frequency coaxial connector Part 2: Type T3.8(C4) $160.00 via email in 1~3 business day valid
YD/T 943.3-2009 Radio-frequency coaxial connector Part 3: Type T2.8(C3) $160.00 via email in 1~3 business day valid
YD/T 943.4-2009 Radio-frequency coaxial connector Part 4: Type T5.1(C5) $190.00 via email in 1~3 business day valid
YD/T 944-1998 Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications $264.00 via email in 1~3 business day superseded
YD/T 944-2007 Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications $60.00 immediately valid
YD/T 945-1998 Modem operating at data signalling rates of up to 33600bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits $900.00 via email in 1~5 business day valid
YD/T 946-1998 TMN interface specification methodology $300.00 via email in 1~3 business day valid
YD/T 947-1998 Upper layer protocol profiles for the Q3 and X interface $220.00 via email in 1~3 business day valid
YD/T 948-1998 Generic application temple for multimedia conferencing service $490.00 via email in 1~3 business day valid
YD/T 949-1998 Multipoint binary file transfer protocol $760.00 via email in 1~3 business day valid
YD/T 950-1998 Tchnical rquirements and test methods for protection agaist ovoltages and .overcurrents on telecommunication switching equipment $530.00 via email in 1~3 business day superseded
YD/T 950-2008 Technical requirements and test methods for protection against overvoltage and overcurrents on telecommunication switching equipment $435.00 via email in 1~3 business day valid
YD/T 951-1998 Characteristics and protocols for terminals for telematic services in ISDN $880.00 via email in 1~3 business day valid
YD/T 952-1998 Technical requirements and measurement methods for 900MHz RF repeater $190.00 via email in 1~3 business day superseded


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