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Bit-synchronous operation is a type of digital communication in which the data circuit-terminating equipment (DCE), data terminal equipment (DTE), and transmitting circuits are all operated in bit synchronism with a clock signal.[1]

In bit-synchronous operation, clock timing is usually delivered at twice the modulation rate, and one bit is transmitted or received during each clock cycle.

Bit-synchronous operation is sometimes erroneously referred to as digital synchronization.


  1. ^ Martin H. Weik (2000). Computer science and communications dictionary, Volume 2. Springer. p. 129. ISBN 978-0-7923-8425-0.

  This article incorporates public domain material from the General Services Administration document "Bit synchronous operation" (Federal Standard 1037C in support of MIL-STD-188).