on line or off line UPS

[Anonymous user]

how can i know if a APC UPS is an on-line or an off-line?
main UPS i worked on was on line. but i want to know if there is a way to know the type of a UPS.
can we know it, by the model? how?

[Anonymous user]

it 's ok, thank.

[BillP · Accepted solution]

Our BackUPS ES Family UPS uses standby topology while our latest BackUPS Pro are uses line interactive topology. For our SmartUPS product line, those model numbers that starts with SC/SU/SUA/SUM/SMX/SMT/SMC are all line interactive, while those that are SURT/SURTA and SURTD are all double online topology UPSs.

To know more about topologies, feel free to read our [Whitepaper #1: The different types of UPS systems|http://www.apcmedia.com/salestools/archived/SADE-5TNM3Y_R7_EN.pdf]