If you have a 2400 bps modem, you would generally select 2400. Seven bit requirements show up frequently when communications involve a mainframe computer, and eight bits are common when two personal computers are connected to each other. FIRN requires eight. The stop bits are sent at the end of each character to notify the receiving computer that a new character is forthcoming. The value for Stop Bits is usually one.
Parity is a technique used to check for errors in transmission.
Before connecting to a service, it is beneficial to obtain the settings for data bits, parity, and stop bits. The settings are usually supplied with the service's documentation, or you can call the service and request the information. None When the software has been configured as above and the hardware has been connected as described in chapter 3, you are ready to dial into the FIRN Network. Return to dialing instructions at the end of Chapter 3.