A transmission control character used in synchronous transmission systems to provide a signal from which synchronism or synchronous correction may be achieved between data terminal equipment , particularly when no other character is being transmitted.
SYNCHRONOUS IDLE CHARACTER (SYN)
Meaning of SYNCHRONOUS IDLE CHARACTER (SYN) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012