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Position: Search valid to be valid superseded to be superseded abolished to be abolished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 1469-2006 Technical Requirements for Diameter Base Protocol in IP Network $1050.00 via email in 1~3 business day valid
YD/T 1470-2006 Technical Requirements of Telephony Routing over IP (TRIP) $510.00 via email in 1~3 business day valid
YD/T 525-1992 General technical requirements of standard 2.6/9.5mm coaxial line for 22MHz(4380 channels) carrier communication system $130.00 via email in 1~3 business day abolished
YD/T 527-1992 Specification for 12-channel transistorized carrier telephone equipment on an agricultural wire $130.00 via email in 1~3 business day valid
YD/T 642-1993 Reliability indicator and test method of carrier communication equipment $300.00 via email in 1~3 business day abolished
YD/T 689-1994 Quality grading criteria of rural and urban local subscriber loop carrier equipment $150.00 via email in 1~3 business day abolished
YDJ 35-1981 Technical Specifications for Installation Engineering Construction and Acceptance of Long-Distance Communication Open-Wire Carrier Telephone Equipment $480.00 via email in 1~3 business day valid
YDJ 5-1985 Specification for Installation Design of Long-Distance Communications Carrier Telephone Equipment $810.00 via email in 1~3 business day valid
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