CIRCUIT ARRANGEMENT FOR POWER SUPPLY DEVICES IN TELECOMMUNICATION SWITCHING SYSTEMS, IN PARTICULAR TELECOMMUNICATION SWITCHING SYSTEMS.

摘要

Devices fed with operating voltage and optionally additionally with additional voltage are monitored for the presence of the voltage(s) required in each case. Additional voltage is supplied via plug-in connection and causes the storage of the requirement for the additional voltage in a storage device fed with operating voltage, which can only be cleared by totally disconnecting the operating voltage, but not by detaching the plug-in connection. With storage of the requirement for the additional voltage, alarm signals are given due to a failure of the latter. IMAGE