Standard 485 communication interface, built-in decoder board (pre-digital decoders optional) to support a variety of mainstream protocol, baud rate adjustable.
标准485通讯接口，内置解码板(预置位解码板选配)支持多种主流协议，波特率可调。
USB(Universal Serial Bus) interface is a newly bus interface standard. It has flexible power supply mode, very high transfer rate and plug and play virtue.
接口是一种新兴的总线接口标准，它具有灵活的供电方式、较高的传输速率和即插即用等优点。
To provide intelligent instruments with the cheap interface of the standard current sign, the RC low pass filter is used for producing a voltage signal which is proportion to PWM's duty rate from PWM.
为了给智能仪表提供廉价标准电流信号输出接口，可以使用RC低通滤波器，从PWM中分离出与占空比成正比的线性直流电压信号。
To provide intelligent instruments with the cheap interface of the standard current sign, the RC low pass filter is used for producing a voltage signal which is proportion to PWM's duty rate from PWM.
为了给智能仪表提供廉价标准电流信号输出接口，可以使用RC低通滤波器，从PWM中分离出与占空比成正比的线性直流电压信号。
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