#1. If the equipment is powered down, is it bad to let
the UPS run until it's dead?
I'd shutdown the UPS, just so the alarm isn't going off all the time. If
there is no load on the UPS, the batteries should hold their charge for an
extended period of time.
#2. Is it reasonable to think that the Powerware UPS
could keep the routers and comm. equipment running for
two days if the 270 would be powered down?
You'd have to add up the load on the UPS and the reserve power in the
batteries to answer this.
#3. If we needed to bring in a generator to keep power
up to the comm. equipment, would the UPS "smooth out" the
voltage from the generator?
The UPS should act as a power conditioner, and smooth out the voltage from
the generator, but don't cheap out on the generator or there is the
possibility of damaging the UPS. Be sure the generator is supposed to be
putting out a sine wave or at least a modified sine wave.
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