1746-IA16

1746-IA16

1746-IA16

1746-IA16

RS-232/RS-485中继转换器有一个DB-9孔的RS-232口和2个带接线端子的RS-485。DB-9孔端用于接RS-232口、DB-9针端通过接线端子板接RS-485口。485A2的接线端子板上有5个接线端子（A1、B1、GND、B2、A2） ，为两个RS-485口，共用GND地线。A1、B1与A2、B2是功能完全相同的，不分方向。 两个RS-485口具有相互中继的功能。

  485A2应用与RS-485多机通信的典型接线图。若每一段RS-485的距离为1200米和128个，则整个RS-485系统的距离达到（M×1200米）、节点数达到（M×128）。可以看出，使用了485A2的RS-485总线布线极其简洁。最远两端可以用485A，也可以用485A2。注意整个RS-485系统共用GND线。

A：哪里有卖AB、施耐德、FOXBORO 的产品？？
 
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A: 你那边联系方式是多少？
 
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