Refers to the distribution of alternating current electric power using a system in which all the voltages of the supply vary in unison.

The state in which a computer’s monitor and hard disk turn off to save energy. In sleep mode, all unsaved data and files will be lost if a power problem occurs.

Improves and extends the functional life of a UPS battery and reduces excessive heat during work cycles by using a three-cycle charging process.

Simple Mail Transfer Protocol (SMTP) is the standard for email transmission on the Internet.

A spike is a sudden, brief over voltage.

The state in which an electronic device is asleep or powered off but still drawing power. Desktop computer’s monitor and hard disk turn off to save energy. In standby mode, all unsaved data and files will be lost if a power problem occurs. Televisions use standby power when powered off but draw enough power to receive a signal from the remote control to power them back on.

Ensures that when incoming power drops below or surges above safe voltage levels, the UPS switches to DC battery power and then inverts to AC power to run connected equipment.

Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage.