It is the interface card of the PCI bus conformity which expands the RS-232C serial communication port of two channels in a personal computer. Built-in and each channel are carried in isolation and all communication lines, and UART 162850 of 128byte FIFO is carried between channels and between a personal computer according to transmission and reception for the surge-protection circuit. It can be used as a Windows and standard COM port for Linux by the setup by the attached standard COM driver. A program is also possible at a Win32 API communication function or MSComm.
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