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ups

  • 12-06-2002 2:52pm
    #1
    elexes
    Registered Users, Registered Users 2 Posts: 4,471 ✭✭✭


    right looking for a nice good one that can take in at liest one pc and keep it running for over a hr at liest anyone used one like this ? know where to find one ? and how mutch it would cost ?


Comments

  • #2
    steve-hosting36
    Closed Accounts Posts: 2,161 ✭✭✭steve-hosting36


    APC Back-UPS 500


    Output 500VA, 300 Watts, 230V
    10.6mins backup at half load
    7 hours recharge time
    No Management S/W

    Get it at http://www.encom.ie/Products.asp?CategoryID=33 for 115 euro - it will keep your machine running for about 5-10 minutes, depending on what you are running. Getting an hour from any UPS will make it expensive,
    Steve


  • #3
    Inspector Gadget
    Registered Users, Registered Users 2 Posts: 1,393 ✭✭✭Inspector Gadget


    Another point of potential importance is whether the UPS is "offline" or "online" - an offline UPS switches over to internal power when there's a mains failure, while with an online UPS the mains supply is going through the UPS's power conditioning hardware at all times, so that the batteries & capacitors can help "clean up" the power your machine gets, as well as being able to roll over onto battery power with the absolute minimum of delays.

    The significance of which type you go for is that some machines (and only some, mind you) will hang if there's a slight glitch in the supplied power (the delay while an offline UPS switches over to batteries, for example). Also, an online UPS will take care of brownouts (occasions when the mains voltage drops below what it should be - 230V AC +/- 10%, I think) and "dirty" power (electrical interference in the mains supply caused by other devices) where an offline one won't.

    However, online UPS' cost a small fortune. As will, as steve said, something that will run for an hour. Even scarier for a UPS of that size (a 1-hour jobbie) will be the price of replacing the batteries after the recommended life-span (5 years, isn't it, generally?)

    Gadget


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