phil@amdcad.UUCP (Phil Ngai) (06/05/85)
Let me start by saying there are two kinds of "UPS"s: 1) standby, which isn't a real UPS but detects loss of power and starts up an inverter 2) online, which takes AC, turns it into DC, feeds a battery, and then turns DC back into AC. Number 2 is more expensive but can give better service. Number 1 is ok for most applications, although you can see a florescent lamp flicker during the switchover, it does not go out. All the equipment I have doesn't notice, anyway. So the question is, what would you expect to happen if you plug a UPS into itself? Do UPS designers have special provision for this kind of abuse? -- People do what management inspects, not what management expects. Phil Ngai (408) 749-5720 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil ARPA: amdcad!phil@decwrl.ARPA
williams@kirk.DEC (John Williams 223-3402) (06/06/85)
The UPS will give off a EMP which will be detected by the SAC who will commence WW3.