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Standard No. Title Price(USD) Delivery Status Add To Cart
GB/T 28036-2011 Information processing—Character structure for start/stop and synchronous character oriented transmission 120 (USD) via email in 1-3 business day VALID
GB/T 7496-1987 Information processing systems; Data communication; High-level data link control procedures; Frame structure 105 (USD) via email in 1-3 business day ABOLISHED
JT/T 1183-2018 Interface specification for ETC payment protocol in taxi via email in VALID please email coc@codeofchina.com for quotation
GB/T 14399-2008 Information technology - Telecommunications and information exchange between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link procedures 660 (USD) via email in 1-5 business day VALID
GB/T 7421-2008 Information technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures 1800 (USD) via email in 1-10 business day VALID
GB/T 20851.2-2019 Electronic toll collection—Dedicated short range communication—Part 2:Data link layer 480 (USD) via email in 1-5 business day VALID
GB/T 17547-1998 Information technology--Open System Interconnection--Data link service definition via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20851.2-2007/XG1-2012 Electronic toll collection—Dedicated short range communication—Part 2:Data link layer 420 (USD) via email in 1-3 business day ABOLISHED
GB/T 15124-1994 Information processing system-Data communication-Multilink procedures via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20851.2-2007 Electronic toll collection—Dedicated short range communication—Part 2:Data link layer via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 20851.2-2019E Electronic toll collection—Dedicated short range communication—Part 2:Data link layer 660 (USD) via email in 1-5 business day VALID
GB/Z 17976-2000 Information technology-Open Systems Interconnection-Tutorial on naming and addressing 510 (USD) via email in 1-5 business day
GB/T 7421-1987 Information processing systems; Data communication; High level data link control procedures; Consolidation of classes of procedures 240 (USD) via email in 1-3 business day ABOLISHED
GB/T 16653-1996 ISDN data link layer specification for frame mode bearer services via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 19897.4-2005 Automatic meter reading system lower communication protocol—Part 4:Data link layer using HDLC protocol via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7575-1987 Data communication; High-level data control procedures; Consolidation of elements of procedures 660 (USD) via email in 1-5 business day ABOLISHED
GB/T 17968-2000 Information technology--Telecommunications and information exchange between systems--Elements of management information related to OSI Data Link Layer STANDARDs 900 (USD) via email in 1-8 business day VALID
GB/T 16724.2-1996 Information technology—Thelecommunication and information exchange between systems-X.25-DTE conformance testing—Part 2: Data link layer conformance test suite via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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