The power adapter is equipped with the battery and in case of the break or disruptions of the electricity supply from the energy network the device is switching over for the work from the battery. The time of keeping the tension up is taking out from a few up to several dozen minutes and depends among others on straining the power adaptor and the capacity of the battery.
Devices of this type are used to power servers, computer stations and plotters. Thanks to applying them, in case of the power failure a risk of losing of finding data currently in the main memory of the computer or damaging the data structure enrolled already on disks is reducing of computers or the server. UPS devices are also applicable when you need to maintain the plotter’s power supply for the ending of print of cut arrangement.
In case of the cooperation of devices of the type UPS with computers, servers or the entire computer networks UPS can signal appearing problems with the power supply. Servers and other devices can react to such signals automatically shutting down the operating system. It is also possible a constant control of parameters of the power supply. The communication with other devices is via serial interface, for USB postage or via a network LAN.
Most modern UPSs allow the so-called cold start, that is, to force battery operation without connecting the UPS to the mains or restarting the devices while printing of the needed urgently arrangement of the cut or the reading given, still during a power cut.
