UPS for a X1C: what specs?

[johnfcooley]

UPS for X1C

What modified sine wave actually is is an approximation of a sine wave using discrete voltage steps. The modified sine wave looks like stairs on an escalator from the side. Modified sine waves carry lots of harmonics from the abrupt changes in voltage during an AC cycle. Those harmonics can cause radio frequency emissions, interference, and other nastiness. Switching power supplies can usually deal with modified sine waves but it’s hard on them. The link below from TrippLite explains it a litt…