做通讯用的隔离磁隔,他可以产生5V to 5V DC Power 可以替代常用的两片高速光偶和隔离电源模块-do with the isolation of communications magnetic traps and He could have 5 V to 5V DC Power can be used to replace the two high-speed optical isolation and dual power supply module

TOP PORT (USB) 调试接口说明 本接口是利用PL-2303HX的USB转RS232的接口芯片设计实现了一个TTL(5V)的RS232串口，并且利用了PL-2303HX的2个GPIO口软件模拟了一个低速的I2C总线.该接口由USB接口提供5V电压，可自带2Kbit(24C02)数据备份EEPROM (单独读写通道,不占用I2C总线地址)。并可对外提供小于250mA的5V电压。尤其适合WIN-XP以后的没有并口和串口笔记本电脑。整机成本不到￥20RMB。

一个串行口通讯的例子程序 为了满足PLC的串行口通讯，M238内置了标准串行口用于RS232/RS485串行连接或/和带5V电源的RS485串行连接 -Example of a serial port communication program to meet the PLC' s serial port communication, M238 built-in serial port for a standard RS232/RS485 serial connection and

利用GPIB接口控制K2306上下电，电压5V。-The control of K2306 electric interface using GPIB, voltage 5V.