Select baud rate and parity from the drop down list. By default, character format includes one stop bit (most common). If your remote device requires 2 stop bits, check the 2 stop bit box. Note that these settings apply to the port, and you cannot mix devices that require a dissimilar stop bit count, parity, or baud rate. Reconfigure other devices as necessary.

Click either Master or Slave buttons to select type of operation. Enter timeout if functioning as a master. Click update to register your changes.