[HamWAN PSDR] VOTE: $420 for a new Baldi UPS

[Benjamin Krueger]

I also think this is a worthwhile investment. Woohoo.
On Nov 18, 2015 22:30, "Nigel Vander Houwen" <nigel at nigelvh.com> wrote:

> I think this is a good price, and a good idea to move forward with, I'll
> be working with the board to get a call scheduled for a vote.
>
> Nigel
>
> > Hello,
> >
> > We've known for a few months now that the UPS @ Baldi is bad.  It eats
> > batteries at a high rate, so we don't wanna just buy another battery
> > pack for it.  We also know that Baldi has many power events, even before
> > this wind storm.  One of these outages was of just the right character
> > to deadlock our server up there.  We had to physically go on site to
> > reset it.  Yes, it locked up the iLO too! Another one of these outages
> > (or surges) caused the death of Baldi-R1's power supply.  The site was
> > dead until another physical trip replaced the router and its power
> supply.
> >
> > The perfect fit for this problem is something called an On-Line UPS.
> > Unlike a normal UPS that kicks in when it senses power is down, an
> > On-Line UPS does continuous AC->DC conversion of incoming power to
> > charge the battery bank, and continuous DC->AC conversion from the
> > battery bank to run the load.  Any fast events that might confuse a
> > traditional relay-switching UPS, and allow dirty power to get to the
> > load, are eliminated with the On-Line UPS design, because everything
> > hits the battery bank first.  These types of UPSes are slightly more
> > expensive than normal UPSes, but I did some digging to find the best
> > deal here.
> >
> > The physical parts in this spending request are for a Tripp-Lite 2200VA
> > UPS in new condition, a new set of batteries, and a network interface
> > card.  I'm hesitant to post links to suppliers since the availability is
> > limited.  The cost includes all shipping charges. The real price should
> > be about $408.
> >
> > --Bart
> >
> > _______________________________________________
> > PSDR mailing list
> > PSDR at hamwan.org
> > http://mail.hamwan.net/mailman/listinfo/psdr
> >
>
>
> _______________________________________________
> PSDR mailing list
> PSDR at hamwan.org
> http://mail.hamwan.net/mailman/listinfo/psdr
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.hamwan.net/pipermail/psdr/attachments/20151119/92bcec74/attachment.html>