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7. TERMS AND DEFINITIONS

Maximum Inrush Current: Maximum peak inrush current at the input when the device is switched on.
 
Maximum Output Current: Maximum current that can be drawn continuously from the output.
 
Limit Output Current: Lowest current level that causes the overload protection to operate.
 
Short-circuit Current: Maximum output current in a short-circuit condition.
 
Minimum Output Current: The output current necessary to ensure compliance with the rest of the characteristics.
 
Remote Detection: Maximum voltage drop at the output cables that the equipment can compensate when it is used.
 
Output Voltage Adjustment Range: Output voltage variation that can be carried out by adjusting a potentiometer or an input foreseen for such a purpose.
 
MTBF: (Mean Time Between Failure). Failure rate expressed in hours.
 
Overall Power Output: Maximum continuous power output that the device can deliver, adding up all outputs.
 
Maximum O.V.P.: Maximum output voltage at which the overvoltage protection unit triggers.
 
Load Regulation: Maximum change in % of output voltage when the load is changed from minimum to maximum.
 
Line Regulation: Maximum change in % of output voltage when changing the input voltage range from one end to the other.
 
Cross Regulation: Maximum change in % of an output when changing the load of the rest from minimum to maximum.
 
Efficiency: Percentage relationship between the power output in watt and the input power consumption under rated conditions.
 
Load Transient Response: This is the maximum output voltage change and the time it takes to stabilise after a load step is applied. For example: 200 mV and 5 ms for a load change of 10 to 90%.
 
Line Transient Response: This is the maximum output voltage change and the time it takes to stabilise after a voltage step is applied to the input. For example: 200 mV and 5 ms for an input change of 10% to + 10%.
 
Input/Output or Frame Dielectric Strength: This is the maximum withstand voltage of your equipment between the specified parts.
 
Ripple: AC voltage component overlapped to the output dc voltage at a frequency equal to the switching frequency or lower than this one.
 
Noise (BW 20MHz): AC voltage component overlapped to the output dc voltage at frequencies higher than the switching frequency and with a band width of up to 20MHz.
 
Operation Temperature: Temperature range at which the equipment can operate and meet all the specifications.
 
Hold time: Minimum time for which the output is held without losing regulation after an input voltage failure, where the input was operating in a rated condition before the power failure occurred.