AC to DC power supply 1)RoHS compliant for all six substances 2)Wide input ... , undervoltage, output overvoltage,overcurrent,short circuit and overTemperature protection6) Telecommunication,control, Supervisory signaling7) Included ORing circuit for true redundant operation8) High ... )Safety standards GB4943,EN60950,UL60950Applications Telecommunication systems AC to DC power supply