A05B-2301-C371
A05B-2301-C371
A05B-2301-C371
针对以上情况,工程商采用了RS485中继器,利用485中继器的光电隔离性能及DC/DC稳压器将LED显示屏与外部通信线路完全隔离开来,没有任何电气上的直接连接,从而保护显示屏不会受到浪涌的损害,保证产品的稳定性。同样的,485中继器也可以将485总线网络划分成多个网段,使得每个网段485总线的通信距离缩短,从而使得外部的电磁干扰对于485总线的影响降低,从而保证485总线通信的稳定性。
485总线中如果485传输线达到一定的距离,而且处于复杂的外部环境,从而容易受到外部环境的电磁感应等外部干扰。中继器(485信号放大器)中的高效的防雷管可以有效地抑制闪电(Lightning)和ESD,并且提供每线600W的雷击浪涌保护功率。可以吸收外部环境的电磁感应等外部干扰。从而保护485总线的稳定性。
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