组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 46457.1-2025
Internet of things—470MHz/2.4GHz frequency band sensor network communication and information exchange—Part 1: Physical layer requirements and link layer protocols
GB/T 20851.2-2019
GB/T 20851.2-2019
Electronic toll collection—Dedicated short range communication—Part2:Data link layer
GB/T 28036-2011
Information processing - Character structure for start/stop and synchronous character oriented transmission
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
GB/T 7421-2008
Information technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures
GB/T 20851.2-2007
Electronic toll collection - Dedicated short range communication - Part 2: Data link layer
GB/T 19897.4-2005
Automatic Meter Reading System Lower Layer Communication Protocol Part 4:Data link layer using HDLC protocol
GB/T 17968-2000
Information technology--Telecommunications and information exchange between systems--Elements of management information related to OSI Data Link Layerstandards
GB/T 17547-1998
Information technology--Open systems interconnection--Data link service definition
GB/T 16724.2-1996
Information technology--Telecommunications and information exchange between systems--X.25-DTE conformance testing--Part 2:Data link layer conformance test suite
GB/T 16653-1996
ISDN data link layer specification for frame mode bearer services
GB/T 15124-1994
Information processing system--Datacommunication--Multilink procedures
GB/T 7575-1987
Data communication--High-level data link control procedures--Consolidation of elements of procedures
GB/T 7496-1987
Information processing systems--Data communication--High-level data link control procedures--Frame structure
GB/T 7421-1987
Informationprocessing systems--Data communication--High level data link control procedures--Consolidation of classes of procedures