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Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED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 674-1994 150 (USD) via email in 1-3 business day
YD/T 1703-2007 Carrier-class IP Qos Architecture via email in VALID please email coc@codeofchina.com for quotation
YD/T 1794-2008 Network Management Technical Requirement for 2GHz Digital Cellular Communications Network Performance Criteria of Element Management System (EMS)Itf-N 195 (USD) via email in 1-3 business day VALID
YD/T 858-1996 180 (USD) via email in 1-3 business day
GB/T 15838-1995 Measuring methods for the performances of switching equipment clocks in digital synchronous network via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1550.2-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface(Phase I)Part 1:Layer 1 via email in VALID please email coc@codeofchina.com for quotation
YD/T 729-1994 630 (USD) via email in 1-5 business day VALID
YD/T 3286-2017 Test methods for broadband universal service dedicated fixed customer promise equipment via email in VALID please email coc@codeofchina.com for quotation
YD/T 552-1992 Measuring method for the channel attenuation distortion in the communication network via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 672-1994 165 (USD) via email in 1-3 business day
YD/T 1570-2007 Technical Specification of 2GHz cdma2000 Digital Cellular Mobile Communication Network Mobile Application Part via email in VALID please email coc@codeofchina.com for quotation
GB/T 14133-1993 The transmission performance objectives for mixed analogue-digital public telephone automatic switching network via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14760-1993 The measurement methods of transmission performances on optical fiber cable communication systems via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 5444-1985 The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network 120 (USD) via email in 1-3 business day VALID
YD/T 1266-2003 Test methods of protection schemes for SDH rings 765 (USD) via email in 1-8 business day VALID
YD/T 1550.8-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface(Phase I)Part 8:User Plane Protocol for DCH Data Streams via email in VALID please email coc@codeofchina.com for quotation
YD/T 1546-2007 2GHz WCDA Digital Cellular Mobile Communication Network—Uu Interface Technical Specification of RRC via email in VALID please email coc@codeofchina.com for quotation
YDC 002-2001 Technical requiremnts and testing methods for CPN providing public telecommunication services 435 (USD) via email in 1-3 business day
YD/T 1233-2002 900/1800MHz TDMA digital cellular mobile communication network test methods for Mobile Application Part (MAP) phase2+ 2370 (USD) via email in 1-10 business day VALID
YD/T 1811-2008 Technical Requirements and Testing Method of Retiming Equipment Based on 2048kbit/s 285 (USD) via email in 1-3 business day VALID
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