一种实用的串行通信RS232/RS485转换器

A Sort of Applied Serial Communication Switch of RS232/RS485

本文介绍了一种RS485接口芯片SN75LBC184 ,并给出了一种低成本、带光电隔离的RS232/RS485转换器的设计。经现场使用表明 ,该转换器结构简单 ,工作可靠 。

This paper introduces a sort of interface chip SN75LBC184, and designs a sort of low cost and photoelectric isolated switch of RS232/RS485. The application shows that this switch has brief structure, works credible and can satisfy mostly request of industrial spot.