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2. Apcupsd - Wikipedia

   en.wikipedia.org/wiki/Apcupsd

   Apcupsd, short for APC UPS daemon, is a utility that runs on Linux, UNIX, macOS and Windows. [1]: 1, 8–9 It allows the computer to interact with APC UPSes. Apcupsd also works with some OEM-branded products (e.g. Hewlett-Packard) manufactured by APC. [1]: 7 [2] [3] Apcupsd is a free software equivalent of the APC's proprietary PowerChute software.

3. APC Smart-UPS - Wikipedia

   en.wikipedia.org/wiki/APC_Smart-UPS

   The Smart-UPS is a series of enterprise-level uninterruptible power supplies (UPS) made by American Power Conversion (APC). [1] Most of the units have a SmartSlot (with the exception of SC and SMC series) which accepts an optional interface card providing features ranging from network connectivity to temperature and humidity monitoring. [2]

4. Uninterruptible power supply - Wikipedia

   en.wikipedia.org/wiki/Uninterruptible_power_supply

   A UPS designed for powering DC equipment is very similar to an online UPS, except that it does not need an output inverter. Also, if the UPS's battery voltage is matched with the voltage the device needs, the device's power supply will not be needed either. Since one or more power conversion steps are eliminated, this increases efficiency and ...

5. APC by Schneider Electric - Wikipedia

   en.wikipedia.org/wiki/APC_by_Schneider_Electric

   APC was founded in 1981 by three MIT Lincoln Lab electronic power engineers. Originally, the engineers focused on solar power research and development. [2] When government funding for their research ended, APC shifted its focus to power protection by introducing its first UPS in 1984.

6. Backup battery - Wikipedia

   en.wikipedia.org/wiki/Backup_battery

   Data center UPS backup batteries may be wet cell lead-acid or nickel cadmium batteries, with lithium ion cells available in some ratings. Battery module of a Hewlett-Packard RAID controller Server-grade disk array controllers often contain onboard disk buffer , and provide an option for a "backup battery unit" (BBU) to maintain the contents of ...

7. Transfer switch - Wikipedia

   en.wikipedia.org/wiki/Transfer_switch

   Some transfer switches are manual, in that an operator effects the transfer by throwing a switch, while others are automatic and trigger when they sense one of the sources has lost or gained power. An Automatic Transfer Switch (ATS) is often installed where a backup generator is located, so that the generator may provide temporary electrical ...