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In any case the SmartUPS 1000 was shutting down on every AC turn on, since it eventually drained its battery after so many hits. This causes disk problems, which is NOT good. We now have the USP's cabled in serial, with the SmartUPS 1000 is plugged into line power, the big SmartUPS 22XXX (whose battery is toast) is plugged into the 1000, and the computer systems are running on the 22XXX. It seems to work better than with the 22XXX first in line.
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