If the cambium (at least in the epmp world) has a gig interface, then it is 
polarity agnostic.

If it's 10/100 only, then it has to be cambium polarity.

I've never tried it on an airfiber.  The edgepoint dc port is polarity 
agnostic. 


On December 3, 2019 10:02:52 PM CST, 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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