We use Magnum Power pure sine wave on-line UPSs with AGM batts. Yeah we lose in the conversion, but we also don't have to fumble around with a couple of various DC voltages.
Love them. Made in the US too. On Jul 28, 2017 4:20 AM, "Gino A. Villarini" <[email protected]> wrote: > Our issues is exclusively with AF24’s and APC SU750’s. On a Switching > event the AF24 lock up about 50% of the time. We have been changing the > APC750 with the newer APC SUA750 and the problem vanishes… believe me we > have trie everything, grounding, changing UBNT POE, Surge Suppressors, you > name it. > > 2 things have only worked: > > Newer APC models with any POE > Powering the the AF24 with a dc-dc converter connected to the site > batteries and into a McCown DC injector > > From: Af <[email protected]> on behalf of Colin Stanners < > [email protected]> > Reply-To: "[email protected]" <[email protected]> > Date: Thursday, July 27, 2017 at 9:53 PM > To: "[email protected]" <[email protected]> > Subject: Re: [AFMUG] Is there such a thing as a AC Capacitor? > > I forgot to mention: > -if it's a non-sinewave UPS, it could be that the powersupply is designed > to expect sinewave AC. > -are you certain that it's not a grounding issue or other stray voltage > between the circuits? > > > > *Gino A. Villarini* > President > Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 > > On Thu, Jul 27, 2017 at 8:50 PM, Colin Stanners <[email protected]> > wrote: > >> Gino, can you say which gear? Most UPSes switch pretty much "instantly" >> (less than one AC cycle, which lasts 16ms) so a PSU that wouldn't last one >> AC cycle must have very questionable engineering. Or assuming that you use >> APC UPSes, you can change the sensitivity setting to switch quicker: >> http://www.apc.com/us/en/faqs/FA156514/ >> >> On Thu, Jul 27, 2017 at 2:57 PM, Gino A. Villarini <[email protected]> >> wrote: >> >>> Got some gear that hangs when UPS switches from AC power to Batts… >>> needs something to power AC for microseconds >>> >>> >>> >>> *Gino A. Villarini* >>> President >>> Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 >>> >>> >> >
