I guess I'm a spammer today: Dongle fixed at 24V <https://www.amazon.com/5-5x2-1mm-Devices-Converter-Cameras-Speaker/dp/B0CG1ZLFCH/ref=sr_1_13?crid=39GJO84TG9WHL&dib=eyJ2IjoiMSJ9.0EMbP-c6_tGOBaphHcmNgtTDEdBwjD4-jrYSCkhpx4p57utSFQ49Tw4ZxloOhUEY6kHUekjc0ywsNeznIrXzI2jlPBBiLF4TojV3CEt-4DmuOewy-9QTlfk7todXGLTIUAc0aOABP2Lh22mVBL0caSJCXM53xVw5ZnvTsT2u0ObzqqFLdNJIQ8p6rs50vQ7woUknNQ8QK29PW-mqeqDdsDE97WSP9eOYrDuBI5ImwQw.NBguwRCq9NZPTMviP8Bf1csyZWBLTr1KQDhGKzy5zHc&dib_tag=se&keywords=usb+to+24V+barrel&qid=1746369825&sprefix=usb+to+24v+barrel%2Caps%2C108&sr=8-13>. I've seen fixed 5V, 12V, and 24V so far. Probably better than a selector switch is just get fixed voltage dongles with the right voltage for the device. I'd also hope for the correct size barrel without any adapters.
On Sat, May 3, 2025 at 1:23 PM Ken Hohhof <[email protected]> wrote: > It would be nice if more CPE devices used USB-C for power, you could = > power them off power banks intended for laptops and phones. > > I wonder if one of these would work: > https://www.ankersolix.com/products/c300-dc?variant=3D49702163972426 > > There's a 200W DC model, a 300W DC model, and a 300W DC+AC model. They = > have LFP batteries and a 12V car charger output. They seem intended as = > portable power banks, not sure how well they would work as a UPS. > > I seem to remember Tycon makes POE inserters that can be powered via = > USB. > > -----Original Message----- > From: AF <[email protected]> On Behalf Of Chris Fabien > Sent: Friday, May 2, 2025 9:01 PM > To: AnimalFarm Microwave Users Group <[email protected]> > Subject: Re: [AFMUG] UPS for Internet equipment > > Years ago I had someone send me a demo unit of a ONT/router battery = > backup that just used 8 D-Cell Alkaline batteries. Up to the customer to = > replace them when they go bad or are depleted by an outage. Didn't seem = > like a terrible idea if you "had to offer a backup power solution" > > On Fri, May 2, 2025 at 9:10=3DE2=3D80=3DAFAM Josh Luthman = > <josh@imaginenetworksll=3D c.com> wrote: > > > > I'm testing the ESPI box. Very small 12v lithium unit. 12v output=20 > > with =3D > DC barrels, and POE capability (24v or 48v passive only i think) > > > > On Fri, May 2, 2025 at 8:23=3DE2=3D80=3DAFAM Mike Hammett = > <[email protected]>=20 > > wr=3D > ote: > >> > >> You do have to offer it (I think that requirement is going away), but = > > >> no=3D > on=3D3D > >> e has to take you up on the offer, and the offer doesn't have to be=20 > >> reas=3D > ona=3D3D > >> ble. > >> > >> > >> > >> > >> -- > >> Mike Hammett > >> > >> ----- Original Message ----- > >> From: "Steve Jones" <[email protected]> > >> To: "AnimalFarm Microwave Users Group" <[email protected]> > >> Sent: Friday, May 2, 2025 12:10:38 AM > >> Subject: Re: [AFMUG] UPS for Internet equipment > >> > >> > >> > >> I thought there was some rule that you have to offer UPS if you sell=20 > >> VOI=3D > P, =3D3D > >> youd think the market would be saturated with small power long=20 > >> runners i=3D > n t=3D3D > >> his space=3D3D20 > >> > >> > >> On Thu, May 1, 2025 at 7:35 PM Ken Hohhof < [email protected] >=20 > >> wrote:=3D3D=3D > 20 > >> > >> > >> > >> > >> > >> > >> > >> Most people have phones, tablets and laptops that are battery=20 > >> powered, a=3D > s w=3D3D > >> ell as security cameras like Ring and Blink. But unless they have a=20 > >> whol=3D > e h=3D3D > >> ome generator, their Internet stops working if their Internet=20 > >> equipment =3D > (ro=3D3D > >> uter, modem, ONT, radio, gateway, etc.) doesn=3D3DE2=3D3D80=3D3D99t = > have=20 > >> power=3D > .=3D3D20 > >> > >> > >> > >> Have any of you found a UPS that fits this use case?=3D3D20 > >> > >> > >> > >> Everybody wants to sell you an 800 VA battery backup with 30 minutes=20 > >> of =3D > run=3D3D > >> time. It=3D3DE2=3D3D80=3D3D99s the old paradigm of powering your = > desktop=20 > >> compu=3D > ter long =3D3D > >> enough to save your work and shut it down. What we need is something=20 > >> tha=3D > t d=3D3D > >> elivers 1/10 that much power for 10 times that long.=3D3D20 > >> > >> > >> > >> Yes, I realize a big part of the problem is the inefficiency of DC/AC = > > >> co=3D > nve=3D3D > >> rsion especially at low power levels. And there have occasionally=20 > >> been D=3D > C b=3D3D > >> attery backups for network equipment, usually for a specific model of = > > >> CP=3D > E. =3D3D > >> But we are often faced with a radio that wants 24-30 or 48-56 VDC,=20 > >> and a=3D > Wi=3D3D > >> Fi router that wants 5 or 12 VDC.=3D3D20 > >> > >> > >> > >> If this was for our own use, I could build something with some DIN=20 > >> rail =3D > ele=3D3D > >> ctronics and a battery, but it wouldn=3D3DE2=3D3D80=3D3D99t be UL = > approved=20 > >> or =3D > appropria=3D3D > >> te for a customer to use in their home.=3D3D20 > >> > >> > >> > >> People these days get alerted on their phone because their doorbell=20 > >> came=3D > ra =3D3D > >> is offline, and they call their ISP rather than check for power=20 > >> outages.=3D > If=3D3D > >> they had a UPS for their Internet equipment, they would get an alert = > > >> th=3D > at =3D3D > >> their POWER was off. Ideally it would run for 8 hours which seems to=20 > >> be =3D > a t=3D3D > >> ypical restoral time for power companies. But I guess even with a=20 > >> couple=3D > ho=3D3D > >> urs they would at least know why their security camera is offline.=20 > >> And i=3D > f t=3D3D > >> hey are home they continue doing stuff online for awhile and start=20 > >> plann=3D > ing=3D3D > >> where to go for public WiFi if the power outage lasts longer than=20 > >> their=3D > ba=3D3D > >> ttery runtime. --=3D3D20 > >> AF mailing list=3D3D20 > >> [email protected]=3D3D20 > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com=3D3D20 > >> > >> --=3D3D20 > >> AF mailing list > >> [email protected] > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > >> > >> > >> -- > >> AF mailing list > >> [email protected] > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > > AF mailing list > > [email protected] > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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