On Tue, Aug 3, 2010 at 1:01 PM, David Lum <[email protected]> wrote:
> - do not plug surge protectors into a UPS. If they UPS runs on batteries it
> will usually generate a step sine wave which may destroy surge protectors
It can, in theory, be a problem, although I've never seen it happen.
But it's easy enough to avoid even taking the chance.
You can also run into issues daisy-chaining even power strips.
Most TVSSes (Transient Voltage Surge Suppressors) work by shunting
excess energy into the equipment grounding line ("third prong"). What
happens if you have multiple devices shunting is generally not part of
the design assumption. Again, best to avoid it.
Note that most UPSes also include TVSS circuitry.
I haven't had any trouble finding RPTs (Relocatable Power Taps, the
official term for a "power strip") with*out* TVSS circuitry.
-- Ben
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
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