ISO 13239为关于HDLC协议的国际标准，详细定义了HDLC的内容，通过该协议可以完成标准的HDLC编程-ISO 13239 for HDLC agreement on international standards, a detailed definition of the content of HDLC, adoption of the agreement will be completed standard HDLC Pro

ISO/IEC13239,Information technology-Telecommunications and information exchange between systems-High level data link control(HDLC) procedures-ISO/IEC13239, Information technology-Telecommunications and information exchan