This paper presents a serial communication protocol structure based on open system interconnection reference model. The function and realization method of every layer is discussed.

文章提出一种基于开放系统互联模型的串行通信协议结构，讨论了各层协议的功能和实现方法。

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Now, as the rapid development of civil aviation, the deficiency of Aeronautical Telecommunication Network (ATN) based on the Open System Interconnection (OSI) model, becomes more and more obvious.

现在，随着民航业务的飞速发展，基于开放系统互联(osi)模型的航空电信网(atn)逐渐显示出了它的不足。

youdao

Now, as the rapid development of civil aviation, the deficiency of Aeronautical Telecommunication Network (ATN) based on the Open System Interconnection (OSI) model, becomes more and more obvious.

现在，随着民航业务的飞速发展，基于开放系统互联(osi)模型的航空电信网(atn)逐渐显示出了它的不足。

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