PROPOSED USA STANDARD Data Communication Control Procedures for the USA Standard Code for Information Interchange.

This article focuses on the proposed USA Standard, which presents control procedures for the data communication systems. This employs the USA Standard Code (SC) for Information Interchange. It is intended for systems that are controlled through the use of the communication control characters provided in USASCII. Other standards have been adopted or are being developed which prescribe the character structure, bit sequencing, signaling speed, message format, and other parameters vital to the communication of information in a data system. In the development of this standard both historical and present data communication practices were considered. In addition, consideration was given to the requirements for future systems and to the applicable standards being developed internationally. This standard is intended for systems that are controlled through the use of the communication control characters provided in USASCII. This standard specifies a variety of data communication control procedures to meet the needs of data communication links having different configurations or complexity.