RS485通讯线是什么电缆 RS485通讯线是什么电缆图片

p1Src=//y3.yzimgs.com/uploads/309657/2017418-135331500.jpg?watermark/2/text/5aSp5rSl5biC55S157yG5oC75Y6C56ys5LiA5YiG5Y6C5a6Y572R/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"

aa