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15682 posts

Uber Geek


  #2355671 18-Nov-2019 12:30
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The APC I briefly owned made a high pitched noise I couldn't tolerate in my office.


That sounds like a fault.  I've sold dozens of these and not had a single noise complaint.



My query went back to APC via the seller, who said they do make a high pitched noise but very few people can hear it. Apparently I have either good hearing or I'm easily annoyed ;)

214 posts

Master Geek

  #2355721 18-Nov-2019 13:45
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1) Monitoring of when on battery so that servers/NAS can shutdown - this possible? does not seem like it from my reading.


2) Can the alarms be disabled or controlled? My kit is central and even with a short overnight brownout, having this go off will impact WAF :-) A feature of some "off the shelf" UPS that I may need to trade off against price and up time benefits of your solution.



No Monitoring built into these units from what I have seen. Mind you with an appropriate battery you could give yourself 24 or more hours without too much trouble. Personally I've always found the auto shutdown features on basic UPS's to cause more trouble than they are worth.



Same with the alarm when on battery?




559 posts

Ultimate Geek


  #2355733 18-Nov-2019 13:57
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Same with the alarm when on battery?







Oh, sorry didn't quite get the question. Yes, when on mains fail the fan's start up (and continue until the battery is fully re-charged after mains return) but no annoying beeping (I've done the 3am destroy the annoying beep on the UPS myself!). The fan(s) are pretty much what you would expect, not quiet but not an annoying screaming thing. Mine is on the other side of a standard wall from where I sleep and it does not wake me up if it comes on (and I'm a light sleeper).





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