mark@intek01.uucp (Mark McWiggins) (09/14/90)
I need a UPS that can do auto-shutdown of my 386 Unix system in the event of a power failure. Can you recommend such a beast? I see a lot of them advertised, but I can't tell the players without a scorecard. Thanks in advance for any insight. -- Mark McWiggins Integration Technologies, Inc. (Intek) +1 206 455 9935 DISCLAIMER: I could be wrong ... 1400 112th Ave SE #202 Bellevue WA 98004 mark@intek.com Ask me about C++!
mpd@anomaly.sbs.com (Michael P. Deignan) (09/17/90)
mark@intek01.uucp (Mark McWiggins) writes: >I need a UPS that can do auto-shutdown of my 386 Unix system in the >event of a power failure. Can you recommend such a beast? I see a lot >of them advertised, but I can't tell the players without a scorecard. I can highly recommend American Power Conversions' line of auto-shutdown UPS systems. I've never had one fail on me yet. MD -- -- Michael P. Deignan, President -- Small Business Systems, Inc. -- -- Domain: mpd@anomaly.sbs.com -- Box 17220, Esmond, RI 02917 -- -- UUCP: ...uunet!rayssd!anomaly!mpd -- Telebit: +1 401 455 0347 -- -- XENIX Archives: login: xxcp, password: xenix Index: ~/SOFTLIST --
tneff@bfmny0.BFM.COM (Tom Neff) (09/18/90)
Well, it may not be quite as fancy as some of the so called "big name" brands, but we sure saved a bundle on our K-TRON 9000 UPS here at the factory -- I couldn't believe how inexpensive it was! Even so, we've never ha>>CLICK<<
nvosd@nwnexus.WA.COM (UW West ) (09/18/90)
After a blown hard disk and motherboard last year (along with a half dozen surge supressors and assorted other electronics), I went out and got a TrippLite BC-450. Since then, the score is Puget Power 0 - TrippLite 5. Seriously, I've had my Tandy 5000MC, monitor, HP DeksJet and Mountain Tape drive on this box since about Sept of last year with no problems. We've hada couple of bodacious hits, one of which took out all the surge supressors that I replaced after LAST years debacle, and nothing seems to faze the TrippLite. The cheapest place I found in Seattle to buy this stuff has been at Pearl Electronics, on Dexter accross from KING-TV. Clay Jackson
mje@olsa99.UUCP (Mark J Elkins) (09/21/90)
In article <3260@anomaly.sbs.com> mpd@anomaly.sbs.com (Michael P. Deignan) writes: >mark@intek01.uucp (Mark McWiggins) writes: > >>I need a UPS that can do auto-shutdown of my 386 Unix system in the >>event of a power failure. The simplist I ever saw was... Plug a neon into the normal mains (with appropiate ballast resistor). Have an 'LDR' next to it (Light dependant resistor). connect the ends of the LDR to pins 2 and 3 of an available RS232 port. Put neon and LDR together (close) in a light-proof box (match-box size?). On computer - send char every 1 minute to rs232 port. If you can read a reply (what you just sent), mains power still on. If you send a char - and nothing comes back - assume power is off and that you are running on the UPS. Schedual a shutdown! You can use status files and guesswork as to how much juice is in the batteries - and schedual the shutdown accordingly. Costs - Most expensive part is the DB25 (assuming you have a 'spare' rs232 port :-). OK - so this ties up a port - and there are some detail missing like crossing pins 4+5+8 and 6+20, writing a prog to read/write the port... but once you have the 'idea'.... If you are careful - the LDR/Neon can fit into a DB-9 connector. It looks quite amusing plugging the RS232 port into the mains! -- . . ___. .__ Olivetti Systems & Networks, Unix Support - Africa /| /| / /__ UUCP: {uunet,olgb1,olnl1}!olsa99!mje (Mark Elkins) / |/ |ARK \_/ /__ LKINS mje@olsa99.UUCP (Postmaster) Tel: +27 11 339 9093