Displaying 2 results from an estimated 2 matches for "38b89df1".
2019 May 28
0
apc with rs232
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2019 May 28
7
apc with rs232
a friend gave me an old apc smart-ups 1250
it has a rs232 interface but i have no pc with a rs232 port
i attempted to use a rs232 to usb adapter but the ups goes nuts
i connected the ups to batteries and verified it was working properly
when i plug the usb cable into the pc the ups shuts down
when i attempt to turn it on it beeps twice and shuts down
this all occurs before i start the nut software