摘要 |
PURPOSE:To execute an optional trace of all signals on all accommodating circuits by containing a common channel signal supervising function and a false signal generating function, in an electronic switching system for accommodating a circuit to be supervised. CONSTITUTION:A transmitting and receiving signal supervising part constituted of a signal deciding part and a signal accumulating part executes a decision as to whether a supervision is necessary at every signal circuit or not and whether a signal is on a circuit being in a false test or not, by using a trace control table which has been set in advance, with respect to a signal arranged like a time division. Also, a signal whose accumulation is required is accumulated by adding a classification of transmission and reception and a signal circuit number. Subsequently, in a false signal generating part, whether the signal is a receiving signal or not, and also whether a false signal is generated or not are decided by using a trace control table. Next, in a false signal control table, the next signal being a corresponding signal to an opposed system of the false testing circuit is extracted by using a receiving signal as a key, and a transmission processing of the next signal is executed. |