[Nut-upsuser] apc with rs232

[nicolae788]

Apc uses a propietary serial cable and your convertar for sure it's wired
standard. Refer to the following link for info.
https://pinoutguide.com/UPS/apc_smart_cable_pinout.shtml

Good luck

On Tue, 28 May 2019, 15:13 , <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 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
> other than give up or buy a new ups, any suggestions
>
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> Nut-upsuser at alioth-lists.debian.net
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