GB/T 7421-1987
AbolishedInformationprocessing systems--Data communication--High level data link control procedures--Consolidation of classes of procedures
信息处理系统 数据通信 高级数据链路控制规程 规程类别汇编
Application Summary AI generated
This standard consolidates the various classes of High-Level Data Link Control (HDLC) procedures, defining the operational modes and frame structures for data communication. It is applied in information processing systems to ensure interoperability between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) over synchronous links. The standard is used by engineers designing or testing network protocols and by procurement professionals specifying HDLC-compliant communication hardware for industrial or enterprise networking environments.
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