Editing Automatic baud rate detection (section)

{{Short description|Determining speed and configuration of a serial connecgion by examining the first character}}
{{more footnotes|date=March 2013}}

'''Automatic baud rate detection''' ('''ABR''', '''autobaud''') refers to the process by which a receiving device (such as a [[modem]]) determines the speed, code level, start bit, and [[stop bit]]s of incoming data by examining the first [[character (computing)|character]], usually a preselected sign-on character ([[syncword]]) on a [[UART]] connection. ABR allows the receiving device to accept data from a variety of transmitting devices operating at different speeds without needing to establish data rates in advance.