Modularly structured digital communications system for interconnecting terminal equipment and public networks, and having operation and reliability programs

摘要

Modularly Structured Digital Communications System having Operations- Oriented and Security-Oriented Components. The switching- oriented, the operations-oriented and the security-oriented components are divided into three structure levels such that apparatus program modules for generating logical switching technology messages, operating technology messages or security technology messages are provided in a line technology task structure. An operations-oriented coordination program module and switching procedure program modules for the control of the operations- oriented and of the switching-oriented information and data flow are provided in an operating technology switching technology coordination task structure. At least one operations-oriented and one security- oriented application program module for sequencing operations- oriented or security-oriented jobs are provided in an application task structure.