I found this old 650VA Bestpower Fortress from ~1993 (and 6 more like it) at a store clearout the other day. View image: /infopop/emoticons/icon_biggrin.gif<P>Anyway ...
I know this has come up before, but no-one seemed to know the answer then. Problem is as follows: I have an APC Back-UPS 650 and a CD with PowerChute v.5.0.2. So far so good. PowerChute tells me the ...
While the RS-232, RS-422, and RS-485 serial standards are hardly new, combining them over a single connector creates challenges unforeseen when these standards were first drafted years ago.
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