[mrtg] Re: noc temp

[Equipment Coordinator]

I found something, looks cheap, made to connect to a UPS via Serial (or so
it says)   It does not specifically say that it can be connected to a
computer via serial, but interesting to find out from the company (maybe
with a little social engineering, I doubt they would want to sell the unit
without selling you a UPS to go with it.)

http://www.mgeups.com/products/pdt230/software/access/umsensor/umsensor.htm

Jim Barstow
Equipment Monitor Team
Local Internet Services, Inc.
P.O. Box 160
Ludington, MI 49431
(231)845-9797 ext. 109


----- Original Message -----
From: "Alex van den Bogaerdt" <alex at slot.hollandcasino.nl>
To: "MRTG users" <mrtg at list.ee.ethz.ch>
Sent: Tuesday, October 24, 2000 6:34 PM
Subject: [mrtg] Re: noc temp


>
> Steve Rowe wrote:
> >
> > This looks like it might fit the bill:  http://www.sensorsoft.com/
>
> I successfully implemented one of those.  I didn't need to order
> their software, a *very small* and **very** simple C-program is
> enough to get it going.  My program doesn't try to do recovery
> or other fancy stuff, either it works right away or it doesn't.
>
> The program that can be ordered might be useful for other projects
> but I don't think (judging on the information on the website)
> that it is useful for RRDtool/MRTG.  We need the raw data.
> I let RRDtool handle the missing sample if necessary.
>
> > No too expensive either. :)
>
> Personally I think you should change "too" into "very".  IMHO
> it is (slightly) overpriced. [1]
>
> Note about the documentation:  If you decide to build your own
> cable, and don't work with EIA-232 equipment on a daily basis,
> you might not see that they are using the proper names for the
> signal lines.  Where the manual talks about RxD, they mean the
> RxD line on the computer (this line is talking on the device).
> Once you've figured this out, it should work within minutes
> (including the programming of both the driver and RRDtool).
>
> regards,
> Alex
>
> [1] Looking for another product, combining temperature, humidity,
> barometric pressure, wind speed and direction.  It does not need
> to be high end (although it needs to be fairly accurate) so I do
> not want to spend $x000.00 for it.
> <RANT>it seems that these kind of products are high precision or
> low accuracy or toy stuff.  Why can't I find low precision, high
> accuracy?</RANT>
>
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