The maximum AC or DC voltage which maybe continuously applied from input to output and/or chassis of a power supply.
Isolation
Two circuits that are completely electrically separated with respect to DC potentials, and almost always also AC potentials. In power supplies, it is defined as the electrical separation of the input and output via the transformer.
Inverter
A power supply which produces an AC output, usually from a DC input.
Intelligent Battery Management (IBM)
The intelligent battery management will manage charging and discharging to get longer backup times and prolong battery life.
Input Power Cord
The cord for the AC input of UPS. Normally, there are three wires of Line-Neutral-Ground in it