This article builds up two data communication platforms: one is by Siemens MC388 WM and Epson S1C33209 MCU, which is a two MCU solution.

• 文章构建了两个数据通信终端平台：一种采用西门子MC388与爱普生S1C33209的双MCU结构，另一种采用西门子TC45的单MCU结构。