Uninterruptible power supply (English Wikipedia)

APC AP9207 Share-UPS, User Manual, pp. 6–7, Port 1 is called the Advanced port because it supplies smart signaling, which provides the advanced capabilities available to a server running PowerChute plus software. The Advanced port provides full access to the Computer Interface port of the UPS. Ports 2–8 on the rear panel of Share-UPS are called Basic ports because they supply simple UPS signaling for On Battery and Low Battery conditions in the UPS. "Share-UPS User Manual" (PDF). Archived from the original (PDF) on April 24, 2012. Retrieved November 14, 2011.
APC Application Note #67 "APC Network Management Card Security Implementation" (PDF). Archived from the original (PDF) on April 24, 2012. Retrieved November 14, 2011.

books.google.com (Global: 3^rd place; English: 3^rd place)

Dorf, Richard C. (2018-12-14). The Electrical Engineering Handbook - Six Volume Set. CRC Press. ISBN 978-1-4200-4975-6.
Peter M. Curtis (2011). Maintaining Mission Critical Systems in a 24/7 Environment. Wiley. pp. 261–262. ISBN 9781118041628.
Michael F. Hordeski (2005). Emergency and backup power sources: preparing for blackouts and brownouts. The Fairmont Press, Inc. ISBN 9780881734850.

datacenterjournal.com (Global: low place; English: low place)

"Maintaining and Testing Your UPS System to Ensure Continuous Power, Section: Maintaining a Battery Bank". The Data Center Journal. Archived from the original on 2020-07-06. Retrieved 2011-11-15.

datapowermonitoring.com (Global: low place; English: low place)

Cotton, Bart (January 2005). "Battery Asset Management: VRLA ageing characteristics" (PDF). Batteries International. Archived from the original (PDF) on 2013-04-06.

doi.org (Global: 2^nd place; English: 2^nd place)

Solter, W. (2002), "A new international UPS classification by IEC 62040-3", 24th Annual International Telecommunications Energy Conference, pp. 541–545, doi:10.1109/INTLEC.2002.1048709, ISBN 0-7803-7512-2, S2CID 195862090
Heydari-doostabad, Hamed (January 2019). "A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system". International Journal of Electrical Power & Energy Systems. 104 (1): 898–909. Bibcode:2019IJEPE.104..898H. doi:10.1016/j.ijepes.2018.07.047. ISSN 0142-0615. S2CID 116458248.

eaton.com (Global: low place; English: low place)

Uninterruptible power supply FAQ "Uninterruptible power supply FAQ". May 2019. Retrieved 2024-07-30.
"Uninterruptible power supply FAQ". Eaton. March 3, 2025. Archived from the original on July 30, 2024. Retrieved March 3, 2025.

emersonnetworkpower-partner.com (Global: low place; English: low place)

Detailed explanation of optimized N + 1 configurations"Balancing Scalability and Reliability in the Critical Power System: When Does N + 1 Become Too Many + 1?". Archived from the original (PDF) on 2016-03-03.

emersonnetworkpower.com (Global: low place; English: low place)

E-book on choosing a UPS topology based on application type "Avoiding Trap Doors Associated with Purchasing a UPS System" (PDF). Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
Detailed explanation of UPS topologies "High-Availability Power Systems, Part I: UPS Internal Topology" (PDF). November 2000. Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
Detailed explanation of UPS redundancy options"High-Availability Power Systems, Part II: Redundancy Options" (PDF). Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
An example of an Ethernet UPS controller: Liebert IntelliSlot Web Card Communications Interface Card Archived 2016-04-13 at the Wayback Machine

generex.de (Global: low place; English: low place)

Generex. "Multi-XS User Manual" (PDF). Archived from the original (PDF) on 2012-01-27. Retrieved 2011-11-14. Multi-XS is an active RS232 data switch, designed to handle serial communications of one UPS with up to 5 / 10 computers

ghostarchive.org (Global: 32^nd place; English: 21^st place)

"Increasing energy efficiency with modular HP three-phase power distribution" (PDF). HP. Archived (PDF) from the original on 2022-10-09.
"15 Seconds versus 15 Minutes: White Paper 107 Designing for High Availability" (PDF). Active Power. 2007. Archived (PDF) from the original on 2022-10-09.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Heydari-doostabad, Hamed (January 2019). "A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system". International Journal of Electrical Power & Energy Systems. 104 (1): 898–909. Bibcode:2019IJEPE.104..898H. doi:10.1016/j.ijepes.2018.07.047. ISSN 0142-0615. S2CID 116458248.

hp.com (Global: 3,975^th place; English: 2,687^th place)

h20000.www2.hp.com

"Increasing energy efficiency with modular HP three-phase power distribution" (PDF). HP. Archived (PDF) from the original on 2022-10-09.

lbl.gov (Global: 2,509^th place; English: 2,329^th place)

hightech.lbl.gov

Ton, My; Fortenbery, Brian; Tschudi, William (January 2007). "DC Power for Improved Data Center Efficiency" (PDF). Lawrence Berkeley National Laboratory. Archived from the original (PDF) on 2010-10-08.

mpoweruk.com (Global: low place; English: low place)

"Cell Balancing". Electropaedia. Woodbank Communications. Archived from the original on 2020-06-09. Retrieved 2020-05-28.

powercontrol.co.uk (Global: low place; English: low place)

"Choosing the Right UPS System for Your Business - Power Control Ltd - Uninterruptible Power Supply Solutions, UPS Maintenance & UPS Installation". Archived from the original on 2021-01-14. Retrieved 2021-01-12.

powerstream.com (Global: low place; English: low place)

"How to calculate battery run-time". PowerStream Technologies. Retrieved 2010-04-26.

powertechniquesinc.com (Global: low place; English: low place)

"15 Seconds versus 15 Minutes: White Paper 107 Designing for High Availability" (PDF). Active Power. 2007. Archived (PDF) from the original on 2022-10-09.

pscpower.com (Global: low place; English: low place)

"Hybrid Rotary UPS" (PDF). Archived from the original (PDF) on December 4, 2014.

sciencedirect.com (Global: 149^th place; English: 178^th place)

Heydari-doostabad, Hamed (January 2019). "A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system". International Journal of Electrical Power & Energy Systems. 104 (1): 898–909. Bibcode:2019IJEPE.104..898H. doi:10.1016/j.ijepes.2018.07.047. ISSN 0142-0615. S2CID 116458248.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Solter, W. (2002), "A new international UPS classification by IEC 62040-3", 24th Annual International Telecommunications Energy Conference, pp. 541–545, doi:10.1109/INTLEC.2002.1048709, ISBN 0-7803-7512-2, S2CID 195862090
Heydari-doostabad, Hamed (January 2019). "A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system". International Journal of Electrical Power & Energy Systems. 104 (1): 898–909. Bibcode:2019IJEPE.104..898H. doi:10.1016/j.ijepes.2018.07.047. ISSN 0142-0615. S2CID 116458248.

stacoenergy.com (Global: low place; English: low place)

"UPS On-Line Uninterruptible Power Supply Backup Power Source". StacoEnergy.com. Retrieved August 14, 2025.

tldp.org (Global: low place; English: 9,792^nd place)

Raymond, Eric Steven. UPS HOWTO, section 3.3. The Linux Documentation Project, 2003–2007.

tripplite.com (Global: low place; English: low place)

"UPS Buying Guide". TrippLite.com.

web.archive.org (Global: 1^st place; English: 1^st place)

E-book on choosing a UPS topology based on application type "Avoiding Trap Doors Associated with Purchasing a UPS System" (PDF). Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
Detailed explanation of UPS topologies "High-Availability Power Systems, Part I: UPS Internal Topology" (PDF). November 2000. Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
"Uninterruptible power supply FAQ". Eaton. March 3, 2025. Archived from the original on July 30, 2024. Retrieved March 3, 2025.
"Choosing the Right UPS System for Your Business - Power Control Ltd - Uninterruptible Power Supply Solutions, UPS Maintenance & UPS Installation". Archived from the original on 2021-01-14. Retrieved 2021-01-12.
"Hybrid Rotary UPS" (PDF). Archived from the original (PDF) on December 4, 2014.
Ton, My; Fortenbery, Brian; Tschudi, William (January 2007). "DC Power for Improved Data Center Efficiency" (PDF). Lawrence Berkeley National Laboratory. Archived from the original (PDF) on 2010-10-08.
Detailed explanation of optimized N + 1 configurations"Balancing Scalability and Reliability in the Critical Power System: When Does N + 1 Become Too Many + 1?". Archived from the original (PDF) on 2016-03-03.
Detailed explanation of UPS redundancy options"High-Availability Power Systems, Part II: Redundancy Options" (PDF). Archived from the original (PDF) on 2013-03-26. Retrieved 2018-12-11.
Generex. "Multi-XS User Manual" (PDF). Archived from the original (PDF) on 2012-01-27. Retrieved 2011-11-14. Multi-XS is an active RS232 data switch, designed to handle serial communications of one UPS with up to 5 / 10 computers
APC AP9207 Share-UPS, User Manual, pp. 6–7, Port 1 is called the Advanced port because it supplies smart signaling, which provides the advanced capabilities available to a server running PowerChute plus software. The Advanced port provides full access to the Computer Interface port of the UPS. Ports 2–8 on the rear panel of Share-UPS are called Basic ports because they supply simple UPS signaling for On Battery and Low Battery conditions in the UPS. "Share-UPS User Manual" (PDF). Archived from the original (PDF) on April 24, 2012. Retrieved November 14, 2011.
An example of an Ethernet UPS controller: Liebert IntelliSlot Web Card Communications Interface Card Archived 2016-04-13 at the Wayback Machine
APC Application Note #67 "APC Network Management Card Security Implementation" (PDF). Archived from the original (PDF) on April 24, 2012. Retrieved November 14, 2011.
"What is the expected life of my APC UPS VRLA battery?". apc.com. APC. 2024-12-12. Archived from the original on 2025-06-26. Retrieved 2025-08-23.
"Maintaining and Testing Your UPS System to Ensure Continuous Power, Section: Maintaining a Battery Bank". The Data Center Journal. Archived from the original on 2020-07-06. Retrieved 2011-11-15.
BTECH Inc, BTECH's Focus – Predicting Battery Failure and Installation Manual, page 18, showing sensor wires for each cell/battery on a battery string, and also note that the current transducer sensors to detect cross-string series-parallel current recirculation.
"Cell Balancing". Electropaedia. Woodbank Communications. Archived from the original on 2020-06-09. Retrieved 2020-05-28.
Cotton, Bart (January 2005). "Battery Asset Management: VRLA ageing characteristics" (PDF). Batteries International. Archived from the original (PDF) on 2013-04-06.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Heydari-doostabad, Hamed (January 2019). "A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system". International Journal of Electrical Power & Energy Systems. 104 (1): 898–909. Bibcode:2019IJEPE.104..898H. doi:10.1016/j.ijepes.2018.07.047. ISSN 0142-0615. S2CID 116458248.

Uninterruptible power supply (English Wikipedia)

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