Halt prevention and error alarm apparatus of PBX system and the method of the same

摘要

The present invention relates to a simple electronic exchange system, especially the liver waiting to exchange electronic system (wait) signal To reset the system by detecting and error detection unit and interrupt (interrupt) signal detection and error detection unit provided by the in-line interfaces do not know when to be caused by the failure or malfunction or stop the system watchdog circuit (watch dog circuit) stop protection and failure of the electronic system for preventing a simple exchange notification relates to an apparatus and method. The present invention detects if the wait signal between the CPU and the CPU and the device abnormally active-high signal is continued to give a clear end, when an error occurs in the standby signal which is detected by indicating a wait signal detection and the error detection circuit and having a, thereby also clearing the interrupt signal is still continued in this case the CPU is active-low, and so the normal operation, by having the interrupt signal is detected, and an error detection circuit for providing an interrupt error information, the central processing unit CPU is still negative (Halt ) or remove the cause of the reset by the watchdog circuit (watch dog circuit), detect the cause of the atmospheric signal and an interrupt signal to determine the cause and the problem occurred within a short time of the electronic exchange system, liver and give them to the administrator actions can be.