Displaying 1 result from an estimated 1 matches for "b07jfd2c1d".
2019 May 28
2
apc with rs232
On 5/28/19 3:39 PM, Julian H. Stacey wrote:
> grumpy at mailfence.com wrote:
>> 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