Different cable lengths?

From: Mathew Howard 
Sent: Friday, June 30, 2017 4:36 PM
To: af 
Subject: Re: [AFMUG] New AF5X using less power than older board revisions?

Well, I've always measured them from the DC side, so I could see them going 
drawing that much from the wall. 


Kind of interesting, I was just checking some of ours... I have one site, where 
there are two AF-5x plugged being powered from a MikroTik hEX PoE, so they both 
have the exact same power source, similar cable lengths, etc. and one is 
showing 8.1 watts and the other is 10.5 watts. The interesting thing, is that 
the one that's drawing more power actually has less load going through it, and 
judging from the MAC address, is also slightly newer. I don't know how accurate 
those MikroTiks are at measuring current (wouldn't surprise me if they're far 
from accurate), but I would expect them to at least be kinda consistent.


On Fri, Jun 30, 2017 at 4:50 PM, Eric Kuhnke <[email protected]> wrote:

  I really thought I remembered seeing an AF5X about eighteen months ago, 
drawing 16-17W from the wall, but I could be wrong or the watt meter that it 
was plugged into was grossly inaccurate. This newer model of kill-a-watt seems 
to be better. 



  On Fri, Jun 30, 2017 at 7:29 AM, Mathew Howard <[email protected]> wrote:

    Yeah, I think that's pretty consistent with what the AF-5X radios have 
always used. The AF5 (not X) and AF24 do use a lot more power.


    On Fri, Jun 30, 2017 at 7:08 AM, Stefan Englhardt <[email protected]> wrote:

      Yes. All my AF5X use ~10W. UBNT AC use 6W and older MT 11n use 3-4W. SAF 
is 30-35. PTP600 is 50. 


      On Fri, 30 Jun 2017 12:04:44 +0000
      Rory Conaway <[email protected]> wrote:

        I think you are thinking of the AF24 which cranks 50W all the time.

        Rory

        From: Af [mailto:[email protected]] On Behalf Of Eric Kuhnke
        Sent: Thursday, June 29, 2017 6:43 PM
        To: [email protected]
        Subject: [AFMUG] New AF5X using less power than older board revisions?

        Provisioning a new AF5X link here on their AC PoE injectors before they 
go out to the field. Something interesting I've noticed, and maybe I'm not 
remembering right, but it seems that the newer AF5X use less power than the 
older ones.

        This unit with its ubnt default PoE injector plugged into a kill-a-watt 
is measuring 11 watts. There's no traffic going through it, but as I recall an 
AF5X uses pretty much the same amount whether or not it's under load, since the 
AF architecture is constantly sending/receiving frames whether or not they have 
an ethernet data payload.





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