AUTOMATIC TURNING ON/OFF SYSTEM OF ELECTRIC POWER SOURCE

摘要

PURPOSE:To turn off an electric power source without using an external timer and interrupting busy calls by enabling the setting of power source turning ON/OFF time of an exchange and controlling the power source by a central controlling unit. CONSTITUTION:Turning off time Toff and on time Ton are inputted from a maintenance console MC by command. The central controlling unit (CC) adds an identification code ID to the inputted time information through an interface IFC and stores in a main memory (MM). The CC collates the set time of the MM and the present time of a timer (TM) by the period program of an automatic power source cut off processing mechanism AC and supervises the presence of busy call, and then transmits a power source cut off signal to the power source device (POW) of a signal distributing device MSD. The POW turns off the supply of the power source to the exchange by the signal. However, MM and TM continue operation by an auxiliary battery BAT.