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GB/T 30246.8-2013 Home network—Part 8:Device description file specification—XML format 1440 (USD) via email in 1-10 business day VALID
GB/T 16646-1996 Information technology-Open systems interconnection-Local area networks-Medium access control (MAC) service definition via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 11014-1989 Electrical characteristics of balanced voltage digital interface circuits 195 (USD) via email in 1-3 business day VALID
CJ/T 188-2018 Technical requirements of utility meters data transmission 310 (USD) via email in 1 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 17970-2000 Information technology--Processing languages--Document Style Semantics and Specification Language (DSSSL) 3180 (USD) via email in 1-10 business day VALID
GB/T 15629.1103-2006 Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11:Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) Specifications:Specification for op via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17179.3-2000 Information technology--Protocol for providing the connectionless-mode network service--Part 3:Provision of the underlying service by an X.25 subnetwork 300 (USD) via email in 1-3 business day VALID
YD/T 1204-2002 Technical requirement of Always On/Dynamic ISDN (AO/DI)service 420 (USD) via email in 1-3 business day VALID
GB/T 17963-2000 Information technology--Open Systems Interconnection --Network layer security protocol 1440 (USD) via email in 1-10 business day VALID
YDN 052-1997 Specifications for B-ISDNATM Layer 450 (USD) via email in 1 business day VALID
GB/T 15935-1995 Magnetic stripes on savingsbooks via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YZ/Z 0026-2001 Exchanging Data Specification between Newspapers and Periodicals Distribution System and Information Exchanging and Processing Systems of Information Centers 1380 (USD) via email in 1-10 business day VALID
GB/T 9950-1988 Data communication-37 pin and 9 pin DTE/DCE interface connectors and pin assignments 360 (USD) via email in 1-3 business day ABOLISHED
YD/T 1613-2007 Security Requirements for Public IP Network—Security Architecture via email in VALID please email coc@codeofchina.com for quotation
GB/T 15127-2008 Information technology - Telecommunications and information exchange between systems - Twisted pair multipoint interconnections 360 (USD) via email in 1-3 business day VALID
GB/T 12166-1990 Electrical characteristics of unbalanced voltage digital interface circuits via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 30246.2-2013 Home network—Part 2:Control terminal specification 420 (USD) via email in 1-3 business day VALID
GB/T 21644-2008 General Description of Networks Distance Learning via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 36454-2018 Information technology—Telecommunications and information exchange between systems—Medium access control and physical layer specifications for middle-high throughput wireless local area network 1725 (USD) via email in 1 business day VALID
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