摘要
本文阐述了某工程项目中采用RS-485总线和调制解调器两种方案组建的远程多机主从式数据通信系统的系统结构和硬件设计。
In the paper,the author introduces system structure and hardware design of long-range multi-company principal and subordinate data communication system which is made up of RS-485 and modem in some item.
出处
《价值工程》
2012年第15期156-157,共2页
Value Engineering
关键词
串行通信
远程数据通信
主从式通信
调制解调器
serial communication
teledata communication
principal and subordinate communication
modem
