Re: [AFMUG] will reverse POE fry an M5 Nanostation?

[Bill Prince]

  
  
The cost of reverse polarity protection is the price of a diode.
  Maybe that's what they did. Or else the power regulator has that
  capability built in?


bp



On 12/2/2019 5:57 PM, Ken Hohhof wrote:


  
  
  
  
I just tried the experiment with a used M2
  that I had around and was willing to sacrifice.  The LED on
  the POE-24iR-CI was off, probably indicating a short.  I only
  left it plugged in for maybe 30 seconds.  Afterward I plugged
  the Nanostation into a Ubiquiti POE and it powers up.  Not
  sure if this means it is OK, or it is partially fried and
  cannot be relied upon long term, or would have been fried if I
  had left it plugged in longer.
 
I am trying to decide if this is a truck
  roll and new radio situation, or a mail the customer a new POE
  situation.
 
(The story behind this is customer A buys
  the house of customer B and is moving in.  Customer B had
  Nanostations from a shop building to the house because of line
  of sight issues.  Customer B did not leave the Ubiquiti POE. 
  Customer A goes to his old house and brings the Cambium POE to
  the new house and plugs it in.)
 
 
From: AF
   On Behalf Of Mathew
  Howard
  Sent: Monday, December 2, 2019 7:39 PM
  To: AnimalFarm Microwave Users Group
  
  Subject: Re: [AFMUG] will reverse POE fry an M5
  Nanostation?
 

  I would guess not, but it could be...

 

  
On Mon, Dec 2, 2019 at 7:26 PM Bill
  Prince 
  wrote:
  
  

  I'm guessing you're right. Nanostations are cheap
enough that I would not expect them to have reverse
polarity protection.
   
  bp
  
   
  
On 12/2/2019 5:21 PM, Ken Hohhof
  wrote:
  
  

  I
have a customer who plugged an M series Nanostation
Loco into a reverse polarity POE intended for a
Cambium SM. (long story)
   
  Anybody
know if this means the Nanostation is fried?  I’m
guessing yes.

 
  

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Re: [AFMUG] will reverse POE fry an M5 Nanostation?

[Ken Hohhof]

I just tried the experiment with a used M2 that I had around and was willing to 
sacrifice.  The LED on the POE-24iR-CI was off, probably indicating a short.  I 
only left it plugged in for maybe 30 seconds.  Afterward I plugged the 
Nanostation into a Ubiquiti POE and it powers up.  Not sure if this means it is 
OK, or it is partially fried and cannot be relied upon long term, or would have 
been fried if I had left it plugged in longer.

 

I am trying to decide if this is a truck roll and new radio situation, or a 
mail the customer a new POE situation.

 

(The story behind this is customer A buys the house of customer B and is moving 
in.  Customer B had Nanostations from a shop building to the house because of 
line of sight issues.  Customer B did not leave the Ubiquiti POE.  Customer A 
goes to his old house and brings the Cambium POE to the new house and plugs it 
in.)

 

 

From: AF  On Behalf Of Mathew Howard
Sent: Monday, December 2, 2019 7:39 PM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] will reverse POE fry an M5 Nanostation?

 

I would guess not, but it could be...

 

On Mon, Dec 2, 2019 at 7:26 PM Bill Prince mailto:part15...@gmail.com> > wrote:

I'm guessing you're right. Nanostations are cheap enough that I would not 
expect them to have reverse polarity protection.

 

bp

 

On 12/2/2019 5:21 PM, Ken Hohhof wrote:

I have a customer who plugged an M series Nanostation Loco into a reverse 
polarity POE intended for a Cambium SM. (long story)

 

Anybody know if this means the Nanostation is fried?  I’m guessing yes.

 

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Re: [AFMUG] will reverse POE fry an M5 Nanostation?

[Mathew Howard]

I would guess not, but it could be...

On Mon, Dec 2, 2019 at 7:26 PM Bill Prince  wrote:

> I'm guessing you're right. Nanostations are cheap enough that I would not
> expect them to have reverse polarity protection.
>
>
> bp
> 
>
>
> On 12/2/2019 5:21 PM, Ken Hohhof wrote:
>
> I have a customer who plugged an M series Nanostation Loco into a reverse
> polarity POE intended for a Cambium SM. (long story)
>
>
>
> Anybody know if this means the Nanostation is fried?  I’m guessing yes.
>
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>
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Re: [AFMUG] will reverse POE fry an M5 Nanostation?

[Adam Moffett]

I'm 95% sure that's a yes.

On 12/2/2019 8:21 PM, Ken Hohhof wrote:


I have a customer who plugged an M series Nanostation Loco into a 
reverse polarity POE intended for a Cambium SM. (long story)


Anybody know if this means the Nanostation is fried?  I’m guessing yes.


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Re: [AFMUG] will reverse POE fry an M5 Nanostation?

[Bill Prince]

  
  
I'm guessing you're right. Nanostations are cheap enough that I
  would not expect them to have reverse polarity protection.


bp



On 12/2/2019 5:21 PM, Ken Hohhof wrote:


  
  
  
  
I have a customer who plugged an M series
  Nanostation Loco into a reverse polarity POE intended for a
  Cambium SM. (long story)
 
Anybody know if this means the Nanostation
  is fried?  I’m guessing yes.
  
  
  

  


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[AFMUG] will reverse POE fry an M5 Nanostation?

[Ken Hohhof]

I have a customer who plugged an M series Nanostation Loco into a reverse
polarity POE intended for a Cambium SM. (long story)

 

Anybody know if this means the Nanostation is fried?  I'm guessing yes.

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Re: [AFMUG] Ignitenet Metrolinq 60ghz

[Mike Meluskey]

We have over 100 customers/sites connected using Ignitenet.
It works.  Reliability has been impressive.
As has been stated, Mounting is important.

On 2 Dec 2019, at 20:19, Dev wrote:

They’re surprisingly good, we were pleasantly shocked. We have a 
35cm link running 1300 meters at -57dBm which claims to have a 
theoretical max throughput of 2.3Gbit, until it rains, then you need 
the built-in 5GHz backup.


They’ve had hiccups, but hey, buy a $10K link and you’ll probably 
get more reliability if that’s what you need.


Mounting needs to be very solid, you need their rifle scope doo-dad to 
aim them at any distance.


Also, the GUI isn’t terrifically annoying, which is a plus.


On Dec 2, 2019, at 4:09 PM, Steve D  wrote:

So I know a few of you have these.  What's been the long term feeling 
on their performance and reliability?


Looking at doing a commercial/industrial type setup with each of the 
buildings between 120 - 400m away at most.  I'd have the Omni thing 
ML-60-10G-360 at the fiber side feeding about 4 other buildings and 
probably using the highest gain cpe (ML2.5-60-35 I think?)


I don't see why this won't work, but I have zero experience with 
these guys.  My only other concern is that I've heard mounting has to 
be rock solid which might be tricky for one of them as I'd need to be 
10 feet in the air off the side of a small trailer.


Thoughts and insights would be welcome.

-Steve D
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Re: [AFMUG] Ignitenet Metrolinq 60ghz

[Dev]

They’re surprisingly good, we were pleasantly shocked. We have a 35cm link 
running 1300 meters at -57dBm which claims to have a theoretical max throughput 
of 2.3Gbit, until it rains, then you need the built-in 5GHz backup. 

They’ve had hiccups, but hey, buy a $10K link and you’ll probably get more 
reliability if that’s what you need.

Mounting needs to be very solid, you need their rifle scope doo-dad to aim them 
at any distance.

Also, the GUI isn’t terrifically annoying, which is a plus.

> On Dec 2, 2019, at 4:09 PM, Steve D  wrote:
> 
> So I know a few of you have these.  What's been the long term feeling on 
> their performance and reliability?
> 
> Looking at doing a commercial/industrial type setup with each of the 
> buildings between 120 - 400m away at most.  I'd have the Omni thing 
> ML-60-10G-360 at the fiber side feeding about 4 other buildings and probably 
> using the highest gain cpe (ML2.5-60-35 I think?)
> 
> I don't see why this won't work, but I have zero experience with these guys.  
> My only other concern is that I've heard mounting has to be rock solid which 
> might be tricky for one of them as I'd need to be 10 feet in the air off the 
> side of a small trailer.
> 
> Thoughts and insights would be welcome.
> 
> -Steve D
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[AFMUG] Ignitenet Metrolinq 60ghz

[Steve D]

So I know a few of you have these.  What's been the long term feeling on
their performance and reliability?

Looking at doing a commercial/industrial type setup with each of the
buildings between 120 - 400m away at most.  I'd have the Omni thing
ML-60-10G-360 at the fiber side feeding about 4 other buildings and
probably using the highest gain cpe (ML2.5-60-35 I think?)

I don't see why this won't work, but I have zero experience with these
guys.  My only other concern is that I've heard mounting has to be rock
solid which might be tricky for one of them as I'd need to be 10 feet in
the air off the side of a small trailer.

Thoughts and insights would be welcome.

-Steve D
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[AFMUG] Detect bad battery cells

[Adam Moffett]

A situation came up where there seems to be one bad battery in a set of 
4.  The bad one only gives us 9V when under load.  Same thing happened 
at a different site a couple of years ago.  And both times we found out 
when the power was out and it didn't run as long as it was supposed to.


You can find that problem if you drive there and clip a load tester onto 
each battery, but is there a way to detect those failures remotely?


Surely this problem has been solved.


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