Telecommunications system, particularly a telephone exchange sys

Details Telecommunications system, particularly a telephone exchange sys Telecommunications system, particularly a telephone exchange sys

1984-02-22

1986-09-23

Schreyer, Stafford D.

H04M 336

Patent

active

046137297

ABSTRACT:
In a telephone exchange system comprising information-processing sequential logic systems and apparatus for averting overloads, a measuring device continuously identifies the loadability for a central control unit. The measuring device counts the respective number of line seizures over relatively long time intervals amounting, for example, to seconds. A high or, respectively, low tally result in comparison to a prescribed constant value indicates that the loadability is higher or, respectively, lower than the actual load at that moment. A quotient consisting of the tally result divided by a constant value that is formed in a comparison device is supplied as a significance or weighting to a counter and is stored therein in a memory. The counter is incremented at each seizure by a number of steps corresponding to the weighting and is deincremented with pulses having a constant chronological spacing. When the count exceeds a fixed limit, further seizures are not accepted until the counter is deincremented below the limiting value.

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