That is very strange, usually both sides of a data pair have the same
polarity so the flux cancels in the transformers.
-----Original Message-----
From: Daniel White
Sent: Monday, September 14, 2015 2:18 PM
To: af@afmug.com
Subject: Re: [AFMUG] GigE DC PoE Injectors
Lumina is power on all 8 wires. Same with Integra.
1, 3, 4, 7 are positive
2, 5, 6, 8 are negative
Thank you,
Daniel White
afmu...@gmail.com
Cell: +1 (303) 746-3590
Skype: danieldwhite
-----Original Message-----
From: Af [mailto:af-boun...@afmug.com] On Behalf Of George Skorup
Sent: Monday, September 14, 2015 1:02 PM
To: af@afmug.com
Subject: Re: [AFMUG] GigE DC PoE Injectors
Ken beat me to it.
Oh, and I'm pretty sure SAF Lumina is only two pair power. And up to ~60
watts on that. That's scary.
On 9/14/2015 1:57 PM, Ken Hohhof wrote:
> Trango. At least ApexPlus, Lynx and Stratalink, I don't know about
> Orion and beyond.
> -48 on all 8 wires, return on shield (and tower steel).
>
> -----Original Message----- From: Chuck McCown
> Sent: Monday, September 14, 2015 1:51 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] GigE DC PoE Injectors
>
> One of these companies lit up all 8 wires with one polarity and
> returned on the chassis. Perhaps Trango?
>
> -----Original Message----- From: George Skorup
> Sent: Monday, September 14, 2015 12:49 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] GigE DC PoE Injectors
>
> There's no standard "standard" for all this stuff. 802.3at doesn't
> necessarily mean all four pairs are used for power. For example, Exalt
> ExtendAir G2 is 3at compliant and has return on pins 1&2, +48/56 on 4&5.
> Pretty sure the Cambium 450i is also only two pair power and 3at
> compliant. Very few radios use all four pairs, except for high power
> consumption stuff like AirFiber and some licensed radios (like Trango
> at
> 75 watts).
>
> On 9/14/2015 12:27 PM, Gilbert T. Gutierrez, Jr. wrote:
>> Thank you for your response. I think my question did not go deep
enough.
>>
>> Here are some issue I have...
>> 1. I do not know if what PoE standards are used by the different
>> radios. As I am doing my research, I am seeing that there are 2
>> standards 802.3af (2 pairs providing power?) and 802.3at (All 4 pairs
>> providing power?).
>> 2. I have 2 test sites that I am using to determine what I am going
>> to roll out to other sites.
>> a. Site 1 has a 48V power plant and a device like yours looks
>> like it could work (site has a proxim radio).
>> b. Site 2 has a 24V power plant (site has a AF24 radio).
>>
>> My SAF radios come with power injectors that allow me to input 24V or
>> 48V and output 48V to the radios allowing me to use those with
>> different power plants. My site 2 needs a power supply that can take
>> the 24V input and bump it before putting it on the line.
>>
>> Gilbert
>>
>>
>> On 9/14/2015 9:47 AM, Chuck McCown wrote:
>>> http://www.mccowntech.com/gige-poe-apc-ethernet-surge-
suppressor-pro
>>> tector/
>>>
>>> http://www.mccowntech.com/gige-poe-midspan-poe-injector-
ethernet-sur
>>> ge-suppressor-protector/
>>>
>>>
>>> -----Original Message----- From: Gilbert T. Gutierrez, Jr.
>>> Sent: Monday, September 14, 2015 10:45 AM
>>> To: af@afmug.com
>>> Subject: [AFMUG] GigE DC PoE Injectors
>>>
>>> I am moving many of my sites to DC Power Plants and need to find DC
>>> PoE injectors for the following radios...
>>>
>>> Proxim Tsunami QB-8200 (I believe the pinouts are the same as a SAF
>>> licensed radio) Ubiquit airFiber 24
>>>
>>> These radios are all 48V input and I am looking for injectors to
>>> power them that will accept both 48V and/or 24V inputs. Does anyone
>>> have any suggestions?
>>>
>>> Gilbert
>>
>
>
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