1.5 amps per pin

http://www.te.com/commerce/Document...108-1163EpdfEnglishENG_SS_108-1163_E.pdf

Check out the derating curve.  Sec 3.3 I think.  


 

From: Chuck McCown 
Sent: Tuesday, November 15, 2016 7:26 AM
To: [email protected] 
Subject: Re: [AFMUG] Packetflux & 450M Timing

Tower ground earth ground etc, like Trango does.

Yes, I do, the manufacturer of the jacks I use rates them at 1.5 amps.
But you better not plug them in under load...

From: Bill Prince 
Sent: Tuesday, November 15, 2016 7:22 AM
To: [email protected] 
Subject: Re: [AFMUG] Packetflux & 450M Timing

All one polarity? Where's the drain? You really think you can get 1-1/2 amps 
through each of those teeny little RJ45 connections?


bp
<part15sbs{at}gmail{dot}com>

On 11/15/2016 6:14 AM, Chuck McCown wrote:

  I am talking about all wires being one polarity.  I think I can get 12 amps 
without melting anything.  

  From: Bill Prince 
  Sent: Monday, November 14, 2016 5:41 PM
  To: [email protected] 
  Subject: Re: [AFMUG] Packetflux & 450M Timing

  Let me be more clear. 


  The circuit that is pins 4,5 (+), and pins 7,8 (-) is one circuit. Total of 
.75 amps.

  The circuit that is pins 1,2 (-), and pins 3,6 (+) is one circuit. Total of 
.75 amps.

  That puts 375 milliamps on each pin and each wire. That's because the 
power/current that is going in on pins 7 & 8, has to return on pins 4 & 5. You 
can't double that.


  Possibly more than I would be comfortable with anyway.




bp
<part15sbs{at}gmail{dot}com>

On 11/14/2016 12:18 PM, Chuck McCown wrote:

    Half an amp per wire on one chart, 3.5 amps on another chart.  Heating and 
insulation temperature rating are going to be the limiting factors there.  
    Jacks I use have a 1.5 amp rating per pin.  

    So, I think you can get 12 amps total if the cable is short enough.  

    From: Bill Prince 
    Sent: Monday, November 14, 2016 1:11 PM
    To: [email protected] 
    Subject: Re: [AFMUG] Packetflux & 450M Timing

    Each pair is one half of a power circuit. So there are 4 halves. There are 
two issues; how much current can each wire carry, and how much current can each 
connector pin can carry. 


bp
<part15sbs{at}gmail{dot}com>

On 11/14/2016 11:59 AM, Josh Luthman wrote:

      There are four pairs.  AF5x and the H in 24vh or 48vh POE ports of 
Netonix do power over all four pairs.  Speaking with Ubnt support last week, 
AF5x should ideally do four pairs when possible. 

      48v (0.75*4a) = 144 watts


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

      On Mon, Nov 14, 2016 at 2:44 PM, Bill Prince <[email protected]> wrote:

        At 48 volts, and .75 amps per pair of power wires, that would be 36 
watts + 36 watts, or 72 watts total?

        Just noodling here.



bp
<part15sbs{at}gmail{dot}com>

On 11/14/2016 11:38 AM, George Skorup wrote:

          For the record, 
http://store.packetflux.com/powerinjector-plus-sync-gigabit-version/ says: 1A 
per port maximum power.  (48 watts at 48 Volts)

          So.. is the electronic over-current protection the 1A limit? Or is 
this just outdated info? Pretty sure it's >1A because I've "tested" it (cable 
leaking water into the GigE-APC, the port didn't trip, and the card was hot as 
hell).

          I was also unaware that Cambium won't be supporting sync-over-power 
on the 450m. I imagine the ringing/bounce issue killed that idea due to the 
high power consumption.


          On 11/14/2016 1:00 PM, Forrest Christian (List Account) wrote:

            The current products should power the 450M just fine.  The rating 
is 1A per pair per port, so at the 48V you're good up to 96W. 


            On Nov 14, 2016 7:50 PM, "George Skorup" <[email protected]> wrote:

              The 450m pulls 70 watts. The current 
SyncInjector/PowerInjector+Sync is around 1A max per port. What you could do 
for now is a GigE-POE-APC and the new aux port version SyncBox Junior. 


              On 11/14/2016 12:34 PM, Matt wrote:

                Shouldn't the sync over power for the 450M be the same as 
PMP450i?

                How is the 1u sync injector coming?



                On Mon, Nov 14, 2016 at 12:30 PM, Forrest Christian (List 
Account)
                <[email protected]> wrote:

                  All of the currently shipping syncbox product line are 
compatible.  For sync
                  over power, I have the specs, but the design isn't done yet.


                  On Nov 14, 2016 5:40 PM, "Sam Lambie" <[email protected]> 
wrote:

                    A question for Forrest mostly. Have you come up with a 
timing product for
                    the 450m AP yet? If not, have you got a timeline for 
release?

                    Sam

                    --
                    --
                    Sam Lambie
                    Taosnet Wireless Tech.
                    575-758-7598 Office
                    www.Taosnet.com














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