有源RS232转RS422、485光电隔离转换器 HX-5112 京金华（北京）科技有限公司

p1Src=//y1.yzimgs.com/uploads/189279/2020328-191641614.jpg?watermark/2/text/5Lqs6YeR5Y2O77yI5YyX5Lqs77yJ56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast