That’ll do it!

 

Chris Wright

Network Administrator

 

From: Af [mailto:[email protected]] On Behalf Of Mathew Howard
Sent: Friday, June 30, 2017 4:04 PM
To: af
Subject: Re: [AFMUG] New AF5X using less power than older board revisions?

 

oh... I just occurred to me. The majority of the traffic on the one that's 
running 10.5 watts is being transmitted, but the on the one running 8 watts, 
it's almost all received.

Yeah... the one running at 8 watts is currently has about 10Mbps TX and 110Mbps 
RX going through it, and the run running at 10 watts is doing about 90Mbps TX 
and 9Mbps RX... so apparently the current draw does change quite a bit under 
load on these.

 

On Fri, Jun 30, 2017 at 5:58 PM, Mathew Howard <[email protected]> wrote:

Maybe slightly different, but not much... I'm pretty sure they're both under 10 
feet.

 

On Fri, Jun 30, 2017 at 5:39 PM, <[email protected]> wrote:

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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