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-protector/
http://www.mccowntech.com/gige-poe-midspan-poe-injector-ethernet-surge-suppressor-protector/
-----Original Message----- From: Gilbert T. Gutierrez, Jr.
Sent: Monday, September 14, 2015 10:45 AM
To: [email protected]
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
