Speaking of UPS units, what does the VA mean ? Voltage-Amps? And what is the significance of it related to backup units.
The VA rating is the maximum number of Volts x Amps a unit can deliver. Here is a calculator to determine what rating you need.http://www.csgnetwork.com/upssizecalc.html
Shelly
ftp://www.apcmedia.com/salestools/SADE-5TNQYD_R0_EN.pdf
Also i seem to recall during my study for the A+ certification that there are two main types; a standby and an on-line.Seems like most the garden variety (sold at retail stores) are the stand-by. Is the on-line better? Aren't they more expensive as well?
There are three types there is also the Line Interactve UPS which is a compromise between the Standby and the On Line types.http://www.pcguide.com/ref/power/ext/ups/typesLineInt-c.html
