A method for telephone - and in addition to make telephone systems having a cyclic scanning of connecting lines with the aid of a centrally arranged memory

摘要

In telephone systems with a central control device (ZS1), connector circuits (AVSx) and connection lines (ALx) are monitored and their addresses are stored in a memory (GSp) which communicates with the central control device (ZS1). The memory spaces of the memory (GSp) are monitored by means of the central control device (ZS1) and a time-measuring device (ZG). Depending on the result of the evaluation or on the time-measuring device (ZG), the connector circuits (AVSx) are cyclically connected in succession to one another and to an evaluation device (HZE). IMAGE