A transmission control character used as a request for a response from the station with which a connection has been set up. Note: The response may include station identification, the type of equipment in service, and the status of the remote station.
ENQUIRY CHARACTER (ENQ)
Meaning of ENQUIRY CHARACTER (ENQ) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012