Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Bill Prince]

What I MEANT was 1/2 or 3/6.

Listen to what I mean, not what I type.


bp


On 5/4/2017 12:32 PM, Bill Prince wrote:
A device NOT expecting power on pins 1/2 or 7/8 will likely let the 
smoke out.

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Stefan Englhardt]

Cross checked. There are modes using all data pairs. Compliant devices do 
some checking at startup before powering. Not sure Mimosa claims the Power 
supply is af/at compliant.

Better ask mimosa ...

On Thu, 4 May 2017 19:34:27 +
 Seth Mattinen  wrote:

On 5/4/17 12:20, Jay Weekley wrote:

So, would you try it?

On Thu May  4 15:00 , Seth Mattinen  sent:


On 5/4/17 11:51, Josh Luthman wrote:
Sounds like too much power on the data pairs to be 
802.3af...



Too much? at/af/bt is up to 57 volts.






POE af/at standard complaint devices do not expect power 
over all 4 pairs, so I would lean towards no.


Although I think new bt standard does provide for 4 pair 
power.


~Seth

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Josh Luthman]

I don't remember af ever having DC on pins 1/2/3/6


Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, May 4, 2017 at 3:34 PM, Seth Mattinen  wrote:

> On 5/4/17 12:20, Jay Weekley wrote:
>
>> So, would you try it?
>>
>> On Thu May  4 15:00 , Seth Mattinen  sent:
>>
>> On 5/4/17 11:51, Josh Luthman wrote:
>>>
 Sounds like too much power on the data pairs to be 802.3af...

>>>
>>>
>>> Too much? at/af/bt is up to 57 volts.
>>>
>>
>>
>>
>
> POE af/at standard complaint devices do not expect power over all 4 pairs,
> so I would lean towards no.
>
> Although I think new bt standard does provide for 4 pair power.
>
> ~Seth
>

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Seth Mattinen]

On 5/4/17 12:20, Jay Weekley wrote:

So, would you try it?

On Thu May  4 15:00 , Seth Mattinen  sent:


On 5/4/17 11:51, Josh Luthman wrote:

Sounds like too much power on the data pairs to be 802.3af...



Too much? at/af/bt is up to 57 volts.






POE af/at standard complaint devices do not expect power over all 4 
pairs, so I would lean towards no.


Although I think new bt standard does provide for 4 pair power.

~Seth

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Bill Prince]

802.3af provides power on two of the four pairs. Which pair is 
determined by whether it is mode A or mode B.


I think the "conservative" version is mode B, since it puts the power on 
pins 4/5 (+) and 7/8 (-). Mode A is pins 1/2 (+), and 3/6 (-).


A device NOT expecting power on pins 1/2 or 7/8 will likely let the 
smoke out.


Here's the skinny from Wikipedia:

bp


On 5/4/2017 11:37 AM, Jay Weekley wrote:

Is it possible to power a Unifi UVP VoIP phone with a Mimosa power supply? We 
have one that didn't come with a 48
volt power supply but we have extra Mimosa power supplies laying around.  The 
Unifi phone is 802.3 af compliant.
The Mimosa power supply lists 3/6 and 4/5 as positive and 1/2 and 7/8 as 
negative.

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Jay Weekley]

So, would you try it?

On Thu May  4 15:00 , Seth Mattinen  sent:

>On 5/4/17 11:51, Josh Luthman wrote:
>> Sounds like too much power on the data pairs to be 802.3af...
>
>
>Too much? at/af/bt is up to 57 volts.

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Seth Mattinen]

On 5/4/17 11:51, Josh Luthman wrote:

Sounds like too much power on the data pairs to be 802.3af...



Too much? at/af/bt is up to 57 volts.

Re: [AFMUG] Power Unifi VoIP phone with Mimosa power supply?

[Josh Luthman]

Sounds like too much power on the data pairs to be 802.3af...


Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, May 4, 2017 at 2:37 PM, Jay Weekley 
wrote:

> Is it possible to power a Unifi UVP VoIP phone with a Mimosa power supply?
> We have one that didn't come with a 48
> volt power supply but we have extra Mimosa power supplies laying around.
> The Unifi phone is 802.3 af compliant.
> The Mimosa power supply lists 3/6 and 4/5 as positive and 1/2 and 7/8 as
> negative.
>
>
>
>