Black Box Advanced Console Server User Manual page 320

Ports Menu & Forms
Column Name
Parity
Break
Overrun
290
Description
Error checking bit appended to a data packet.
A method of checking the accuracy of
transmitted characters. Parity is usually
not used, but can be odd or even. A None
parity means that data has not exchanged.
An out-of-band signal on an RS-232 serial
port that involves making the Tx data line
active for more than two whole character
times (or about 2ms on a 9600bps line).
The amount of time it takes for the new data
to overwrite the older unread data.