Of all the devices on our network, we lose Ubiquiti Nanos (our relays
for large farm sites), and Netonix switches in our towers the most.
The Cambium equipment can double as a hammer when needed, you almost
can’t get em to break. The Mimosas do OK, but have their share of
ethernet port problems. As Steve mentioned, you expect the Ubiquitis
to fail given their price, but the Netonix devices are surprisingly
fragile. If it lightnings in the middle of South Dakota it seems like
we are replacing switches in our Minnesota tower cabinets. I have a
box of 8 of them sitting here that have all been replaced. In the
same cabinets we have never replaced one Cambium AP and only 4 Mimosa
backhaul radios (we have about 4 to 1 more Mimosas deployed than
Netonix). I am sure there is something that can be replaced on the
Netonix, but we just don’t have the time to become Netonix repair guys.
We are seriously looking at the Mikrotik Cloud Router Switch as a
replacement for Netonix. The only issue is getting both 24V and 48V
to the device at the same time, but I think we can get that figured
out. Anyone have any practical experience with these they care to share?
Regards,
David Coudron
**
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of * Steve Jones
*Sent:* Monday, September 17, 2018 9:38 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Surge suppression failure gigE APC HV
Out of curiously, and this is a real question, how did netonix pick of
the market share they did while offering utter garbage? It's not even
like they're garbage ubnt cheap, that I understand, I poke the 3 am
Ubnt fat girl at the end of the bar regularly, cause she's cheap and
fat so not going to be a problem. But netonix is like 90 percent
problem from what I read. You never hear about a high maintenance fat
chic because there's no interest. How's this tubby broad even in the
discussion?
On Mon, Sep 17, 2018, 7:57 PM Chuck McCown <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
PTC fuses are not fast enough to protect Netonix. It actually has
them inside.
That is why I build the POE fuse product. It does blow fast
enough to protect the switch.
*From:*Mark Radabaugh
*Sent:*Monday, September 17, 2018 1:12 PM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Surge suppression failure gigE APC HV
Chuck,
We have had really good luck with putting PTC fuses in front of
the POE power on the Mimosa radios in order to avoid blowing the
fuses in the rectifier shelf when the gas tubes in the Mimosa
short the POE. I’m thinking maybe you want to look at putting
some of those on the SS for the power coming from the Netonix? Let
the gas tubes (or whatever surge suppressor you are using) short
all the lines together and let the PTC fuse cut the power
briefly? Might be a little tricky to get the values right but
might be able to save the POE from blowing.
Or talk Netonix into including them internally so that they
survive a POE short circuit.
For those of you scratching your head… we routinely power Mimosa
B5’s using Packetflux DC injectors from the -48V rectifier. The
surge suppression in the B5’s will short the power supply during a
surge event long enough to blow the 2 or 5A telecom fuse. All
the equipment lives but we have to go replace the fuse - which we
don’t want to do since it causes an outage until we get there.
The PTC fuse inline avoids the fuse blowing.
Mark
On Sep 17, 2018, at 10:33 AM, ch...@wbmfg.com
<mailto:ch...@wbmfg.com> wrote:
Surges cause the surge components to do their job, which is to
short everything to ground.
Netonix ports will blow if they are shorted.
*From:*Josh Luthman
*Sent:*Monday, September 17, 2018 6:58 AM
*To:*AFMUG
*Subject:*Re: [AFMUG] Surge suppression failure gigE APC HV
Should only be 24v. Even if it doubled, should be OK on the
radio and surge card.
What's the Netonix problem?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Fri, Sep 14, 2018, 12:44 PM <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
If the voltage was too high or had spikes it could
certainly have done that.
Kinda the reverse of the Netonix problem.
*From:*Josh Luthman
*Sent:*Friday, September 14, 2018 10:37 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Surge suppression failure gigE APC HV
I replaced the POE, AP, and surge card on Tuesday. That's
what fixed it for sure.
The AP is sitting here in the lab and doing gigabit for 3
days now, happily. The POE and surge card are in the trash.
I'm wondering if it's possible the POE fried all of those
surge cards on Saturday/Sunday/Monday/Tuesday. If that's
possible?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Thu, Sep 13, 2018 at 2:21 PM, <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
You say you are inclined to think it is the POE. I
presume that means the POE power supply. So try a new
one. I am probably not understanding the situation.
*From:*Josh Luthman
*Sent:*Thursday, September 13, 2018 11:39 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Surge suppression failure gigE
APC HV
I have a thousand new POEs. What do you want me to try?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Thu, Sep 13, 2018 at 11:07 AM, <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
Do you have a spare POE to try ?
*From:*Josh Luthman
*Sent:*Thursday, September 13, 2018 6:10 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Surge suppression failure
gigE APC HV
Well there was no lightning or anything, beautiful
weather. After several cards I have to imagine
it's the POE or the AP. We replaced those two at
the same time.
Does it make sense the POE was doing something
weird to fry them or more sense the AP was pulling
too many amps? AP seems perfectly fine in the
office for 36 hours, so I'm inclined to believe
it's the POE.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Tue, Sep 11, 2018 at 2:51 PM, Chuck McCown
<ch...@wbmfg.com <mailto:ch...@wbmfg.com>> wrote:
It resets immediately if it is going to reset.
Sounds like it took a hit.
*From:*Josh Luthman
*Sent:*Tuesday, September 11, 2018 12:45 PM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Surge suppression
failure gigE APC HV
How long does it need to be cold for it to be
self reset? The one I took down this morning
looks perfectly clean and I can't get pins 7/8
through it. At this point I'm thinking the
(AC) POE is the cause of all our issues
(Cambium, so that pair is positive 24v and data).
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Tue, Sep 11, 2018 at 10:47 AM, Chuck McCown
<ch...@wbmfg.com <mailto:ch...@wbmfg.com>> wrote:
Sure, you can also wash them with 90%
isopropyl alcohol. That will remove any
water. Need to make sure there is no
corrosion.
Wash out the jacks extra good too.
If they have not had too large of a surge,
they are totally self resetting.
*From:*Josh Luthman
*Sent:*Tuesday, September 11, 2018 7:25 AM
*To:*AFMUG
*Subject:*[AFMUG] Surge suppression
failure gigE APC HV
There's a cause and I'm pretty confident
it's not the cards themselves.
This weekend an AP started having eth link
issues. Look at it and the card/rj45 is
full of water. Replaced the line. Problem
returns about 12 hours later.
I plug in my continuity tester and pin 7
blinks quickly and fades away. Headed up
the tower now for a new AP and already did
a new Poe (no power until AP replaced).
Is it possible the Poe/AP are damaging the
surge card? We've gone through 5-6 cards
since Saturday, and I thought it was all
water related. It stopped raining on
Sunday after card 3 + new line.
Any other ideas? Can I wait a minute and
reuse the dry cards, are they self
resetting (I tried power cycling the POE
for 5 seconds with no change) after a
length of time?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
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