Most of the ePMP models are indeed polarity agnostic, as are airfibers and
pretty much everything I've ever checked with a gigabit port. I'd be
surprised if 450b wasn't.

On Tue, Dec 3, 2019, 10:03 PM Ken Hohhof <[email protected]> wrote:

> It appears Nate was right, the Tycon POE does not seem to have damaged the
> radio.
>
> I think maybe Cambium ePMP and 450b (but not 450) are polarity agnostic?
> Maybe also Ubiquiti airFiber?
>
>
> -----Original Message-----
> From: AF <[email protected]> On Behalf Of Nate Burke
> Sent: Tuesday, December 3, 2019 8:13 AM
> To: AnimalFarm Microwave Users Group <[email protected]>
> Subject: Re: [AFMUG] will reverse POE fry an M5 Nanostation?
>
> If it's a current limiting supply like any of the modern POE Injectors,
> then I don't think there's usually a problem, if it's a direct connection
> like a battery, then yes, it releases the magic smoke.  But the Cambium
> radios would do that too if you reverse the polarity with a battery pack,
> years ago we had an installer who never paid attention to the polarity, he
> fried several FSK Radios.
>
> On 12/3/2019 6:52 AM, Jay Weekley wrote:
> > It usually fries them when we use our battery packs and get the
> > polarity wrong.
> >
> > Ken Hohhof wrote:
> >>
> >> I have a customer who plugged an M series Nanostation Loco into a
> >> reverse polarity POE intended for a Cambium SM. (long story)
> >>
> >> Anybody know if this means the Nanostation is fried?  I’m guessing yes.
> >>
> >>
> >>
> >
>
>
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