A device that provides battery power to a computer or other equipment when incoming electrical power is interrupted. In addition, advanced UPSs provide protection against spikes and surges.

An alternative power source, usually a set of batteries, used to powr a computer system if the normal power service is interrupted or fails below acceptable levels.

A device that is inserted between a primary power source, such as a commercial utility, and the primary power input of equipment to be protected, e.g., a computer system, for the purpose of eliminating the effects of transient anomalies or temporary outages. (UPS).

UPS - Power supply that will continue to operate after the loss of AC input power.

(UPS): a battery-backup power source, usually with built-in surge protection. This equipment is highly recommended for protection against A/C power under-voltage and voltage surges. back to the previous page

A battery-operated power supply connected to a computer to keep the system running during a power failure.

protection against power failure in which files can be stored before power to the system is lost.

Is a special type of power supply commonly found in the security industry. This power supply is used to back up the system for ten minutes or more in the event of a main power failure. The time duration of this available emergency power depends on the size of the UPS and the current power consumption of the equipment in use.

A unit that switches to battery power whenever the power cuts out. [San Diego State University

A UPS is a device that allows your computer to keep running for at least a short time when the primary power source is lost. It also provides protection from power surges. It "kicks in" when the device senses a loss of power from the primary source. If you are using the computer when the UPS notifies you of the power loss, you have time to save any data you are working on and exit gracefully before the secondary power source (the battery) runs out. When all power runs out, any data in your computer's random access memory (RAM) is erased. When power surges occur, a UPS intercepts the surge so that it doesn't damage your computer.

A system designed to automatically provide power without delay or transient, during any period when the normal power supply is interrupted.

Battery back up system; in the event of a power failure, the UPS converts DC battery power to AC power to run the system.

A device that provides protection from power outages and surges.  It contains a battery that keeps a computer operating for a short time when power is lost allowing data to be saved and the computer to be properly shut down before damage occurs.  Some UPSs come with software that intelligently shuts down a computer if there is an extended power outage, thereby automatically protecting data and the computer.

A battery, attached to a piece of hardware, for example a server, that provides backup power for conducting an orderly shutdown if the server's normal power supply fails.

A standby power source that switches so fast with loss of utility power that connected equipment performance is not degraded. Typically used in critical applications such as the headend or hubs.

A system designed to automatically provide power in the event that utility power is interrupted. A UPS may be standby, line interactive, or on line. A UPS is not necessarily a power conditioner, and care must be taken to ensure that the UPS provides all the power quality requirements that are needed.

A UPS is an auxiliary (or "backup") battery that supplies continuous power in the event of a power loss from the power grid. Since all battery systems run down eventually, a UPS guarantee usually means someone had the foresight to buy an electrical power generator and store enough fuel to recharge the batteries.

An apparatus that supplies continuous power to a load, despite disturbances and outages in the mains. A UPS contains a bank of rechargeable batteries that supply power in the absence of acceptable supply voltage.

Basically a battery! If the main power to your computer is interrupted then the battery will take over. A UPS is important for businesses that can not afford to have their computer stop working. The UPS receives a trickle charge from the main power supply ensuring that the battery is always full and ready to take over when the main power stops.

A device (likely containing batteries) that stores power for use when conventional power is unavailable (e.g. during a blackout).

A backup power supply with enough power to allow a safe and orderly shutdown of the central processing unit should there be a disruption or shutdown of electricity.

Usually includes an inverter, drawing its power from batteries, which generates an extremely "well-behaved" AC power signal for a PBX or other equipment. The UPS cost is related to the amount of power needed and the length of time it must operate during a failure. If a particularly heavy demand is anticipated, the system can be coupled with an auxiliary generator that is started when commercial power is interrupted.

A UPS is an external power supply that contains a rechargeable battery pack. In the event that the mains power to the UPS fails, the UPS will instantly switch to battery power and will continue to provide mains power levels to any connected devices. Better quality UPSs also feature surge protection and status monitoring facilities.

A device, connected between a computer (or other electronic equipment) and a power source (usually an outlet receptacle), that ensures that electrical flow to the computer is not interrupted because of a blackout and, in most cases, protects the computer against potentially damaging events, such as power surges and brownouts. All UPS units are equipped with a battery and a loss-of-power sensor; if the sensor detects a loss of power, it switches over to the battery so that the user has time to save any work and shut off the computer.

A device that contains a battery and some circuitry to supply your computer with power for a limited time (depending on the battery) if there is any sort...

Battery power for the orderly shutdown of a network in the event of a power failure.

A device that provides temporary, emergency power when normal power (from electrical grid) fails. Often used with computers to prevent the loss of data. Usually consists of a mod-sine inverter, batteries, and automatic transfer switch.

A device that maintains a continuous supply of electric power to certain essential equipment that must not be shut down unexpectedly.

UPS: Uninterruptible Power Supply. A backup power unit that provides continuous power when the normal power supply is interrupted. UPS systems can be stand-by (only supplying power when the regular supply is interrupted) or fulltime (relying on regular power and/or batteries for power while it supplies power to the protected device). A UPS is not absolutely necessary on all computer systems, but can be important on systems must run 24 hours a day without any problems generated by power outages. Source: Microsoft's New Computer Users Glossary

A circuit that inhibits the power supply when output voltage falls below a specified minimum.

A system designed to automatically provide power, without delay or transients, during a period when the normal power supply is incapable of performing acceptability.

A backup power supply capable of storing and allocating enough power to provide for the safe and controlled shutdown of information processing systems should there be an interruption or loss of normal electrical service.

A battery-powered device that protects against power spikes and power outages. If the power goes out, the UPS continues supplying power to the computer so you can continue working or safely turn off your computer without losing data.

Commonly referred to as a “Battery Back-Up”, a UPS provides power for a short period of time after an AC power failure to allow organized shutdown and saving of your work.

(UPS) A backup power unit that provides continuous power even when the normal power supply is interrupted.

The designation of a power supply providing continuous uninterruptible service. The UPS will contain batteries.

A system which provides continuity of power in the event of a mains power failure - can be battery or diesel driven.

A power supply that continues to provide electricity despite the loss of AC input power. This is made possible by means of a backup battery and a DC-AC inverter or DC-DC converter. Verband Deutscher Electrotechniker (VDE) German national standard and test agency.

See UPS.

Abbreviated UPS, pronounced "you-pea-ess." An alternative power source, usually a set of batteries, used to power a computer system if the normal power service is interrupted or falls below acceptabl ... more

Device that contains surge protection circuits and one or more batteries to provide power during a temporary or permanent loss of power. 12.19

A device connected between a computer and a power source to ensure that electrical flow is not interrupted. UPS devices use batteries to keep the computer running for a period of time after a power failure. UPS devices usually provide protection against power surges and brownouts as well.

An uninterruptible power supply (UPS), uninterruptible power source or sometimes called a battery backup is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source when utility power is not available.