Eneo GLS-2302H - Manual (Page 43)

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Data Bits Either 7 or 8. It is a measurement of the actual data bits in a transmission.
In default, the value is 8.
Parity Bit Choose from No, Even, and Odd. This is a simple form of error checking used in serial
communication and you may use no parity. For even and odd parities, the serial port
sets the parity bit (the last bit after the data bits) to a certain value to ensure that the
transmission has an even or odd number of logic-high bits.
For example, if the data is 0, for even parity, the parity bit is 0 to keep the number of
logic-high bits even. If the parity is odd, the parity bit is , resulting in logic-high bits.
Stop Bit Either 1 or 2. It is used to signal the end of communication for a single packet. The more
bits used for stop bits, the greater the lenience in synchronizing the different clocks but
the slower the data transmission rate. In default mode, the value is
1.