Message Format and Data Communication Link Control Principles

The transmission of data, telegrams, or narrative messages (record material) over the facilities of one or more telecommunication networks requires agreed-to message formats and communication-link control procedures for traffic interchange over these networks. This paper is designed to be a definitive discussion of the principles to be used for developing message formats and control procedures. The paper is based primarily upon the current efforts of the American National Standards Institute (ANSI)Task Group X3S33, Message Header Formats and Task Group X3S34 Control Procedures.