描述
信号在长线中传输会遇到三个问题:一是高速变化的信号在长线中传输时出现的波反射现象,二是具有信号延时,三是长线传输会遇到外界干扰。
USED Berger Lahr TLC532 F Positioning Servo Drive
USED Allen Bradley 2711-K10C1 PanelView 1000 Series F
USED Ekonogage Model G Pin Gauge Set .498 TO .751
USED Allen Bradley 2711-K10C1 PanelView 1000 Ser E
USED Allen Bradley 2711-K10C1 PanelView 1000 Ser E
USED Allen Bradley 2711-T10C15 PanelView 1000 Ser D