on 11/15/2014 03:54 PM Bruce Schultz wrote the following:
If the UPS battery has not run flat before the mains power is restored, I see no reason why a UPS should kill the output power.
The PC has an option in BIOS to "Power On" when the mains power is restored to it, without any need to press any button. So, once the UPS has initiated a shutdown to the PC, the PC will shutdown, and if the mains power is restored (to the UPS) shortly after the PC has shutdown, how will the UPS make the PC come back on, unless it cuts (kills) the power to PC's cord, and then restores it after a few seconds.
See the link Mick posted in his reply: http://www.apcupsd.com/manual/manual.html#arranging-for-reboot-on-power-up
