New update. It looks like the heater may only kick on with 30V. At
24V, it was cycling. Bumped power to 30V and it it drew 15w and
booted. It seemed to work with both polarities. Waiting for radios to
cool down now to test again (they're sitting in the freezer)
Using 100W 24v power supply, and WBMFG GIGE-POE-APC for poe Injection.
(Jumpers set to only power on 4/5 7/8)
On 2/10/2017 4:00 PM, Mathew Howard wrote:
I'm 99% sure I've seen the heater run with +4/5 -7/8... I know I've
watched the power draw changing on an RB750UP (which would be +4/5),
but there is a very, very small chance that I had the power pairs swapped.
On Fri, Feb 10, 2017 at 3:49 PM, That One Guy /sarcasm
<[email protected] <mailto:[email protected]>> wrote:
if this is the case, wouldnt 4 cheap diodes always ensure the
heater polarity is correct?
On Fri, Feb 10, 2017 at 3:46 PM, Nate Burke <[email protected]
<mailto:[email protected]>> wrote:
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.
--
If you only see yourself as part of the team but you don't see
your team as part of yourself you have already failed as part of
the team.
