RS-232, RS-422,和 RS-485序列通訊界面的快速比較 - National Instruments
使用所有的serial通訊協定時,使用者都需要提供自己的終止訊號,關於終止訊號的資訊,您可以參考以下的連結:Do RS-485/422 Interfaces Have Built inTermination and Bias Resistors? 相關連結: Products and Services: Serial KnowledgeBase 1M9D8H6Q: Serial ......