Quoth Dennis Tillman at 2008-04-19 11:41...
Don't forget that the cable from the DB-9 connector on the back of the APC
UPS to the DB-9 Serial Input on the back of your PC is NOT 1-1. For reasons
I have never understood the APC UPS requires a proprietary cable that came
with the UPS. Even
My power went out the other day. That reminded me that I've always been
slightly curious about that area.
Are there any not-expensive boxes made for this? Or something that shows up
on eBay occasionally?
If I was doing it myself, I'd start with a low power (quiet) PC and a UPS.
Then I'd
Hal Murray wrote:
My power went out the other day. That reminded me that I've always been
slightly curious about that area.
Our telescope suffers from flaky mountain power, so we have to do this sort of
thing.
The problem is sending a message that the power went out to the university
Quoting Hal Murray [EMAIL PROTECTED], on Thu 17 Apr 2008
11:10:11 AM PDT:
My power went out the other day. That reminded me that I've always been
slightly curious about that area.
Are there any not-expensive boxes made for this? Or something that shows up
on eBay occasionally?
Lots of
In message [EMAIL PROTECTED], Jim Lux writ
es:
As long as I'm dreaming... Suppose I wanted to measure the power my whole
house is drawing. What's available along the lines of a current transformer
on the main lines? My first thought is that nobody does that (for homes) so
it's probably
Poul-Henning Kamp wrote:
In message [EMAIL PROTECTED], Jim Lux writ
es:
As long as I'm dreaming... Suppose I wanted to measure the power my whole
house is drawing. What's available along the lines of a current transformer
on the main lines? My first thought is that nobody does that
Quoth Hal Murray at 2008-04-18 03:40...
My power went out the other day. That reminded me that I've always been
slightly curious about that area.
Are there any not-expensive boxes made for this? Or something that shows up
on eBay occasionally?
Firstly, I'll second the suggestion to use
your power line voltages.
Dennis
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Hal Murray
Sent: Thursday, April 17, 2008 11:10 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Power monitoring
My power went out
Our telescope suffers from flaky mountain power, so we have to do
this sort of thing.
The problem is sending a message that the power went out to the
university campus from the mountaintop over a network that may not be
working because the power went out. Many steps of communication
Quoth Kit Scally at 2008-04-18 11:37...
Ah-ha. Now here's the rub!
I've got 2 such APC Smart UPS - but I cannot find, beg, borrow or steal
a copy of the PowerChute software from anywhere.
Does anyone have a copy lurking unwanted unloved in their 3.5 floppy
cabinet ?
Try here:
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