How to scan analog subscriber status of all electronic exchanges

摘要

In particular, the present invention relates to an all-electronic exchanger, and more particularly, to a system for scanning an analog subscriber and reporting to an upper processor, thereby reducing the load of an upper processor and reporting the status of the analog subscriber with a simple circuit configuration, To an analog subscriber state scanning method of an entire electronic exchange.;In the conventional analog subscriber state scanning apparatus, when the upper processor checks the subscriber status from the memory, only the line number and the transition state are read. Therefore, it is necessary to perform an operation of discriminating whether the hook-on state or the hook-There is a problem in that it is impossible to add a subscriber line accommodated in an upper processor.;The present invention reduces the load of an upper processor when scanning the status of an analog subscriber and reporting the same to an upper processor. Therefore, it is possible to add a subscriber line accommodated in an upper processor and simplify a circuit configuration of a subscriber control board .