installing ups monitor

[J.Witvliet at mindef.nl]

From: "Bo Berglund" <bo.berglund at gmail.com<mailto:bo.berglund at gmail.com>>
Date: Sunday, 10 January 2021 at 09:22:41
To: "ubuntu-users at lists.ubuntu.com" <ubuntu-users at lists.ubuntu.com<mailto:ubuntu-users at lists.ubuntu.com>>
Subject: Re: installing ups monitor

On Thu, 7 Jan 2021 22:58:33 -0800, "Bob" <ubuntu-qygzanxc at listemail.net> wrote:

>All the talk about needing a ups device I decided to check if my desktop system
>was using the apc ups I have.  The ups is working but there is no software to
>shutdown the computer when the battery gets low.  It appears that somewhere
>along the line the upsmon software got deleted.  So I installed the nut-client.


There are three RJ45 sockets on the side of the UPS and one is apparently really
a USB connection to be hooked up using a converter cable supplied with the UPS.
That cable has an RJ45 in one end (like a network cable) and a USB-A on the
other.
But how is it used on Ubuntu?

<snip>

You often see on UPS boxes old-fashioned RS232-serial interfaces.
Initially the bulky DB25, or DB9 connectors, but they often use RJ45 connectors, as seen with Cisco and SUN equipment.
Your cable is (probably) an usb/serial-converter, and is under linux seen as ttyUSB0.

But no guarantees, ymmv.

--
Bo Berglund
Developer in Sweden


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