ABR

(1) (AutoBaud Rate detect) The analysis of the first characters of a message to determine its transmission speed and number of start and stop bits.

(2) (Available Bit Rate) An asynchronous transfer mode (ATM) level of service that adjusts bandwidth according to the congestion levels in the network. ABR is not used for time-critical data such as real time voice and video.

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auditory brainstem response (see under auditory brainstem response audiometry)

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ABR is a three-letter acronym that may refer to:

• Abercynon North railway station, one of two railway stations serving the village of Abercynon in the Cynon Valley, South Wales
• IATA airport code for Aberdeen Regional Airport, an airport east of Aberdeen, South Dakota, United States
• Auditory brainstem response, an electrical signal evoked from the brainstem of a human or other mammal by the presentation of a sound
• Available Bit Rate, a service used in ATM networks
• Average bitrate, the average amount of data transferred per second
• Area border router, in the Open Shortest Path First protocol
• August Burns Red, a band
• ABR is the file extension for Adobe Photoshop brushes file.
• Advances in Botanical Research, a scientific journal
• The American Board of Radiology

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