It should be simple enough to just swap it for a bigger power supply and see if the problem goes away...
On Thu, Dec 12, 2024 at 4:53 AM Adam Moffett <dmmoff...@gmail.com> wrote: > I ain't got no variac, son > > Field guys tried replacing two of the affected routers yesterday evening > and the replacements did the same thing. The original units work fine at > our office. So I'm pretty convinced it's a local power issue, and I'm > pretty convinced it only affects only the Nokia router because Nokia is the > only one who undersized their power supply. > > -Adam > > > ------------------------------ > *From:* AF <af-boun...@af.afmug.com> on behalf of Chris Fabien < > ch...@lakenetmi.com> > *Sent:* Wednesday, December 11, 2024 5:39 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> > *Subject:* Re: [AFMUG] Sizing DC Power Supplies > > Would be easy enough to bench test this with a variac. > The specs on the power supply are a bit suspect too. Max of 1A at Min 100V > = 100 watts to put out 24W of power? > > > On Wed, Dec 11, 2024 at 5:30 PM <ch...@go-mtc.com> wrote: > > Looks like you nailed it to me. > > > > *From:* Adam Moffett > *Sent:* Wednesday, December 11, 2024 3:09 PM > *To:* AnimalFarm Microwave Users Group > *Subject:* [AFMUG] Sizing DC Power Supplies > > So riddle me this: > > Let's say you have this 12V device which needs a maximum of 24.3 Watts. > > What amperage of 12V switching power supply would you spec for this > device? Personally, I'd go for around 2.5 - 3.0 Amps so I have a safety > margin. > > > Nokia supplies a 12V 2.0 Amp. > > So 24VA to supply up to 24.3W. If those numbers are real, then isn't that > undersized to start with? > > I would never have looked except that we have 3 of these on the same > street all rebooting every few minutes, and they all started doing it at > the same time this morning. It so happens they're all getting electric > service off the same transformer, so I'm imagining there's low voltage or > some other condition making the DC power supply a little less efficient and > now it ain't got the juice to keep the device running. In which case > someone at Nokia is an idiot. Please tell me if I'm the crazy one here. > > -Adam > > > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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