My Infrared Thermometer measures the freezer at 18degrees. I'm not sure
what the cutoff temperature for the heater is. I can say that I was
bringing up a new site @24v on a 30degree day. I plugged the cable in
on the ground, waited a few minutes, the AP still had not come up, I
climbed up the leg to investigate, saw the AP in what appeared to be a
Reboot loop, waited a few more minutes, and it finally booted up. So
I'd say that was at least 10 minutes. That's what prompted me to start
testing.
I have an edgepoint R6 running at 30v input now, The edgepoint still
seems fine, and it looks like that's enough to power the heater in the EPMP.
On 2/22/2017 3:43 PM, Josh Luthman wrote:
So what happens if you do power it up with 24v? Does it just sit there
dumb for hours until the sun cooks it a bit?
This is really only relevant if it's something like <10F when you
first boot it up, right? If it's booted and warm, a cold snap isn't
going to make it go down.
Josh Luthman
Office: 937-552-2340 <tel:%28937%29%20552-2340>
Direct: 937-552-2343 <tel:%28937%29%20552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Wed, Feb 22, 2017 at 4:26 PM, Nate Burke <[email protected]
<mailto:[email protected]>> wrote:
I've finally got back to this project today, and have been running
a few mores test now that the radios are nice and cold in the
freezer. It appears that the polarity does not matter, but the
heater will not kick on with <30v supplied.
On 2/10/2017 4:40 PM, Ken Hohhof wrote:
I see from the Cambium FAQ that a connectorized ePMP can take up
to 20 minutes to heat up if it’s really, really cold outside.
That has to feel like an eternity.
*From:*Af [mailto:[email protected]] *On Behalf Of *Josh Luthman
*Sent:* Friday, February 10, 2017 4:32 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] EPMP1000 Heater POE Polarity
Powered up just fine for us with a 750p yesterday. Two of them.
It was like 15*?
Josh Luthman
Office: 937-552-2340 <tel:%28937%29%20552-2340>
Direct: 937-552-2343 <tel:%28937%29%20552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Fri, Feb 10, 2017 at 5:26 PM, Ken Hohhof <[email protected]
<mailto:[email protected]>> wrote:
Where are you testing? It's like 40 degrees outside. I
assume you are testing in a freezer?
-----Original Message-----
From: Af [mailto:[email protected]
<mailto:[email protected]>] On Behalf Of Nate Burke
Sent: Friday, February 10, 2017 3:47 PM
To: [email protected] <mailto:[email protected]>
Subject: Re: [AFMUG] EPMP1000 Heater POE Polarity
I would like some confirmation, because I think that I'm
repeating the test now and coming up with different results.
Like the heater isn't kicking on with either polarity now.
On 2/10/2017 3:39 PM, Ken Hohhof wrote:
> You'd think after Trango's miserable experience with
preheaters in their 5830 series radios, no one would do that
ever again.
>
> I know I didn't answer your question, but it sounds like
you've already answered it and are just looking for confirmation.
>
>
> -----Original Message-----
> From: Af [mailto:[email protected]
<mailto:[email protected]>] On Behalf Of Nate Burke
> Sent: Friday, February 10, 2017 3:13 PM
> To: Animal Farm <[email protected] <mailto:[email protected]>>
> Subject: [AFMUG] EPMP1000 Heater POE Polarity
>
> I've been running some tests with Cold startup of EPMP1000
w/ sync
> Radios. Does the Internal heater only function with 4/5-
7/8+? A
> cold radio (18F) radio will power on but seems stuck in a
reboot loop
> with 4/5+ 7/8- The same radio powered on and booted
within 2 minutes
> or so with 4/5- 7/8+
>
> Power draw with 4/5+ 7/8- was around 4w, and would randomly
spike to around 15w The power light would stay on, but sync
and ethernet lights would go on and off, like it was
continually rebooting.
>
> Power draw with 4/5- 7/8+ was a solid 15w for about 2
minutes with only the power light on, then 4w once booted.
>
> I just presumed that since it would power on with both
polarities, the heater would work with both polarities as
well. It's looking like that might not be the case.
>
>
