转换器, USB至串行接口, USB至RS232
The is an USB to Serial Interface Converter connects two classic serial devices with RS232 or RS422/RS485 to USB port. The high speed serial port with the 128-byte FIFO allows high speed communication, even in heavy loaded systems. It features reduce the system load and allows unusual speed settings like 500bps. Serial ports on USB allow further use of existing devices, even when the computer doesn"t offer serial ports.