[mesh-talk] USB POE injector

[Martin]

Actually it works quite well with all the Ubiquiti radios I've tried
including the nanobridge.  I think that a laptop USB only puts out 2..5 W
until the attached device negotiates for 5 W.  I think the key is that the
power ratings specified for the Ubiquiti are maximums not typical.  I can
imagine that the radio burns much more power when it is heavily utilized
but not so much when it's just being programmed.

On Mon, Apr 6, 2015 at 10:51 PM, Marc Juul <marc at juul.io> wrote:

>
>
> On Fri, Mar 27, 2015 at 12:21 AM, Martin <dcmk1mr2 at gmail.com> wrote:
>
>> Really handy for installs:
>> http://www.streakwave.com/itemdesc.asp?ic=TP-DCDC-2USB-24
>>
>
> Useful, but only if your laptop can deliver enough power. A nanobridge
> takes about 6.5 watts and normal USB 2.0 ports are minimum 2.5 watts
> (though apparently many are rated at 5 watts?). USB 3.0 is 9 watts and the
> yellow "always on" USB 2.0 ports are also capable of providing enough power.
>
> --
> marc/juul
>
>
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