Black Box IC132C Manual page 25

4-PORT RS-232 PCI AND HS PCI SERIAL ADAPTERS
asynchronous communications by stating that each character is wrapped (framed)
by pre-defined bits to mark the beginning and end of the serial transmission of the
character. The data rate and communication parameters for asynchronous
communications have to be the same at both the transmitting and receiving ends.
The communication parameters are baud rate, parity, number of data bits per
character, and stop bits (usually listed in that order, like this: 9600,N,8,1).
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