Generation of signal patterns for subscriber request - using two current flow detectors delivering signal patterns which can be immediately evaluated (BE 2.10.78)

摘要

The signal pattern is characteristic for the subscriber switching state, its operation requirements and request. It is applied to current flow detectors in at least two subscriber current circuits, respondin to threshold values, and to other signal receivers of a sequentially operating evaluation device carrying out the necessary connection functions. At least one of the circuit state signals delivered by the current flow detectors (A, B) is split into two, staggered in time, sequential signals (F2, F3), and an immediately evaluable bit pattern (K1-K8) containing all state signals (F1-F3) is produced.