With the enhancement of Ethernet protocol rule degree, some change has taken place at the aspects of network installment and configuration.
随着以太网协议统治地位的增强，在网络安装与配置方面也发生了一些变化。
The article describe device type, configuration rule and characters of the physical Layer of HART protocol.
本文描述了HART协议物理层的设备类型，配置准则，以及一些特性。
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