A method to secure the transfer of the control field of a central control to another central control of a telecommunication network. (Machine-translation by Google Translate, not legally binding)

摘要

A method for safely transferring the control field from a central control (when it ceases to function and being perceived safely, due to the same method) to another central control of a telecommunication network with which each control field it changes encoded control signals through at least three independent control lines, with an individual central control, characterized as follows: a) because the possibility of operation of each central control (ZS) is continuously supervised, individually, for each one of at least three detectors (D) in fixed connection with the central control (ZS) and operating independently of each other, each detector (D) giving an indication corresponding to the possibility of operating the respective central control (ZS); b) because the indications provided by the detectors (D) of a central control (ZS) are simultaneously applied to at least two switching stages (N) that operate independently of each other and dedicated to each of the central controls (ZS), being given by each switching stage (M) a signal that corresponds to most of the indications; c) because if the interruption in the central control (ZS) is indicated by the majority of the detectors (D) that supervise the central control (ZS), the control field (SB) initially controlled by the central control (ZS) that it has stopped working and is transferred through replacement control lines (EL) to another central control (ZS) by at least one transfer stage (U) connected in series with each of the switching stages (M), d) because the control of the field (SB) that was initially done by the central control (ZS) that stopped working is assumed by the other central control (ZS) as soon as the latter receives by most of the lines of Substitution Control (EL) correctly coded control signals. (Machine-translation by Google Translate, not legally binding)