Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

[Gino A. Villarini]

Chuck, Would you recommend them? How solid are they? What is the wattage of the 
configuration on ebay? Do they charge the batteries?

From: Af > on behalf of Chuck 
McCown >
Reply-To: "af@afmug.com" 
>
Date: Tuesday, May 8, 2018 at 5:17 PM
To: "af@afmug.com" >
Subject: Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?




Gino A. Villarini


President
Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968

[cid:aeronet-logo_310cfc3e-6691-4f69-bd49-b37b834b9238.png]

I have used a lot of these over the years:
https://www.ebay.com/itm/Exeltech-Mx-Series-N-1-Redundant-Expandable-Inverter-System-NSN-6130015361815/273164348175?hash=item3f99dd2b0f

From: Gino A. Villarini
Sent: Tuesday, May 08, 2018 1:58 PM
To: af@afmug.com
Subject: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

Looking for 48 vdc inverters for data room applications in the range of 6-8 kw

Can be a all in one system ( charger plus Inverter) , must be always online



Gino A. Villarini


President
Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968

[cid:72C1292CA24F40BDBD927E05FF140183@ChuckMcCownPC]

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Steve Jones]

Promises promises :)

On Mon, Mar 26, 2018, 7:44 PM Forrest Christian (List Account) <
li...@packetflux.com> wrote:

> Let me rephrase..to be more complete.
>
> There are some docs, they're hard to find.  They're also not very pretty
> and assume knowledge that some of our customers don't have.   This is what
> we're fixing.
>
>
>
>
> On Mon, Mar 26, 2018, 6:39 PM Forrest Christian (List Account) <
> li...@packetflux.com> wrote:
>
>> Long story short, there are some docs but they're hard to find.  We're
>> fixing this.
>>
>> On Mon, Mar 26, 2018, 5:08 PM Sam Lambie  wrote:
>>
>>> Ok I'll give it a shot as soon as I can. I wish there was some real
>>> documentation that came with them or at least a link to an updated user
>>> guide Or am I blind and I just stuck my foot in my mouth?
>>>
>>> On Mon, Mar 26, 2018 at 4:43 PM, George Skorup >> > wrote:
>>>
 Open up the injector. The jumper positions are printed on the board.
 Top left I believe.

 The default is -4/5 +7/8 and PowerA input on all four ports. So if you
 just plugged it in without any jumper changes, then you're pretty much
 trying to put ~1.5A on a single pair (one pair positive, the other return).
 That's probably ungood.

 Jumper the other two pairs so you get -4/5 +7/8 -1/2 +3/6. Try the SS
 again and see if the port trips.

 On 3/26/2018 5:10 PM, Sam Lambie wrote:

 Well, since I don't have any spares of the  *PowerInjector Plus Sync -
 Gigabit Version,* I bought a couple as I have plans for other
 locations for Medusas. In the meantime, please tell me how to make sure
 that the jumpers are set correctly.

 On Mon, Mar 26, 2018 at 3:41 PM, Sam Lambie 
 wrote:

> GPS is not physically connected to input of SyncInjector now daisy
> chained from the other Syncinjectors, the AP is getting timing from 
> Syncbox
> jr via UGPS power setting on radio . Cat6 is 115' long.
> I didn't even know that jumpering was an option. I guess I have to
> RTFM for the jumper location on the syncinjector? Can you please point me
> to the manual? I have never been able to find any documentation on these
> things...
>
> On Mon, Mar 26, 2018 at 12:10 PM, Forrest Christian (List Account) <
> li...@packetflux.com> wrote:
>
>> Oh, and you have the injector jumpered for all 4 pairs?
>>
>> On Mon, Mar 26, 2018, 12:09 PM Forrest Christian (List Account) <
>> li...@packetflux.com> wrote:
>>
>>> Is the sync pulse disabled or no gps receiver connected?
>>>
>>> How long of a wire?
>>>
>>> On Mon, Mar 26, 2018, 9:52 AM Sam Lambie 
>>> wrote:
>>>
 Timing is being done on the Aux Port. Nothing going through the
 Power Port. I'll give the Gas tube version a shot if you got it.

 On Mon, Mar 26, 2018 at 9:37 AM,  wrote:

> OK, so grounds are related to the problem.
>
> There may be something unusual with timing pulses on the power
> that is causing the surge suppressor to fire.
> Forrest would know much more than I about that.
>
> I honestly don’t know if anyone has tried my product with a Medusa
> before.
> I have a 100% gas tube version that may solve the problem.
>
>
> *From:* Sam Lambie
> *Sent:* Monday, March 26, 2018 9:18 AM
> *To:* af@afmug.com
> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor
> with Medusa
>
> I did pull it from the rack and let it float, no change, however,
> I didn't reboot it while the card was floating.
>
> On Sun, Mar 25, 2018 at 3:15 PM,  wrote:
>
>> When this gets sent
>> Sorry you are having difficulty.
>>
>> I would pull it from the rack and see if the interruption of the
>> ground fixes the problem.
>>
>> The issue is either noise to/from the ground.
>> or
>> Transverse impulses getting clamped.  Could be something about
>> the new timing stuff that I don’t understand.
>> Forrest is probably better versed in thinking about this than I
>> am.
>>
>> Perhaps the server got launched by Elon Musk and the time delay
>> is just accumulating.
>>
>> *From:* Sam Lambie
>> *Sent:* Sunday, March 25, 2018 6:10 AM
>> *To:* af@afmug.com
>> *Subject:* [AFMUG] mccowntech rack mount surge suppressor with
>> Medusa
>>
>> Yo smart folks,
>>
>> I put a gige APC HV rack mount surge suppressor inline with a
>> Cambium Medusa today. It booted up, got in about 20 pings and then 
>> the
>> Packetflux SyncInjector 

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Sam Lambie]

FYI,

I installed the gas tube version on a gigabit  Packetflux Powered Medusa
the other week and no go. The radio boots up for about 25 seconds, and then
shuts down.

On Wed, May 9, 2018 at 9:54 AM,  wrote:

> I am going to chase this down.  Only certain types of products have the
> issue it seems.
> I am going to try to add solid state to the gas tubes using a different
> design that eliminates the steering diodes.
> Seems like the steering diodes are causing the problem in some
> situations.
>
> *From:* George Skorup
> *Sent:* Wednesday, May 9, 2018 9:50 AM
> *To:* af@afmug.com
> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
> No diodes, just gas-tube for large surge event suppression. Obviously not
> as much protection though. I'm seeing more CRC errors than I'm comfortable
> with on the cards with diodes. Rev G is definitely better though. I've
> broken the shield at various sites while testing to rule out any potential
> ground loop issues. Ran on battery. Etc. It's weird. Noise or something, I
> don't know.
>
> On 5/9/2018 10:32 AM, Steve Jones wrote:
>
> What's this gas tube product placement?
> I want to see these
>
> On Wed, May 9, 2018, 9:51 AM  wrote:
>
>> Thanks, yeah nothing fit well next to the thin pcbs.
>>
>> Odd, got some test results back from George yesterday.  Some types of
>> equipment has CRC errors with some of our surge suppressors.  Trying to
>> identify the bad combinations.  Good thing is that our gas tube only
>> products seem to be flawless with everything that people have tried them
>> on.
>>
>> -Original Message-
>> From: Matt
>> Sent: Wednesday, May 9, 2018 8:08 AM
>> To: af@afmug.com
>> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>
>> Chuck,
>>
>> Like form factor of new arrestors much better.  Thicker PCB and RJ45
>> not as tall.  They do not fit well next to your last thin pcb version
>> though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
>> out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
>> even at 1000base.  No errors at all.  This is with RackInjector,
>> Cambium Sync and very long cat-5 runs.  Time will tell but looks good
>> so far.
>>
>>
>>
>> On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
>> > Matt,
>> >
>> > I sent you a note off-list.  I would like to send you the gas tube
>> version
>> > to see if that fixes the issue.
>> >
>> > Inquiring minds want to know...
>> >
>> > -Original Message- From: Matt
>> > Sent: Wednesday, March 28, 2018 4:08 PM
>> > To: af@afmug.com
>> > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>> >
>> >> OK, so grounds are related to the problem.
>> >>
>> >> There may be something unusual with timing pulses on the power that is
>> >> causing the surge suppressor to fire.
>> >> Forrest would know much more than I about that.
>> >>
>> >> I honestly don’t know if anyone has tried my product with a Medusa
>> >> before.
>> >> I have a 100% gas tube version that may solve the problem.
>> >
>> >
>> > I am still having some troubles with PTP450i holding 1gbit ethernet
>> > even with Cambium sync.  Not near as bad with Cambium Sync though.
>> > Will these gas tube versions work any better?  Will they still keep
>> > equipment safe?
>>
>>
>


-- 
-- 
*Sam Lambie*
Taosnet Wireless Tech.
575-758-7598 Office
www.Taosnet.com 

[AFMUG] Ubiquiti ER-X

[Adam Moffett]

Anybody have any opinions on the reliability of Ubiquiti ER-X and 
ER-X-SFP routers?


I was thinking they might be useful for a customer premises 
router/CPE.one which we control, not the customer.

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[chuck]

I am going to chase this down.  Only certain types of products have the issue 
it seems.  
I am going to try to add solid state to the gas tubes using a different design 
that eliminates the steering diodes.
Seems like the steering diodes are causing the problem in some situations.  

From: George Skorup 
Sent: Wednesday, May 9, 2018 9:50 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

No diodes, just gas-tube for large surge event suppression. Obviously not as 
much protection though. I'm seeing more CRC errors than I'm comfortable with on 
the cards with diodes. Rev G is definitely better though. I've broken the 
shield at various sites while testing to rule out any potential ground loop 
issues. Ran on battery. Etc. It's weird. Noise or something, I don't know.


On 5/9/2018 10:32 AM, Steve Jones wrote:

  What's this gas tube product placement? 
  I want to see these

  On Wed, May 9, 2018, 9:51 AM  wrote:

Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types of 
equipment has CRC errors with some of our surge suppressors.  Trying to 
identify the bad combinations.  Good thing is that our gas tube only 
products seem to be flawless with everything that people have tried them on.

-Original Message- 
From: Matt
Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas tube version
> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power that is
>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a Medusa 
>> before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit ethernet
> even with Cambium sync.  Not near as bad with Cambium Sync though.
> Will these gas tube versions work any better?  Will they still keep
> equipment safe? 

Re: [AFMUG] OT: One space versus two spaces (again)

[chuck]

The doctor my mom took me to when I was little would hunt and peck out a 
prescription with a cigarette dangling from his lips.  I was amazed how well 
he could type.


-Original Message- 
From: Adam Moffett

Sent: Wednesday, May 9, 2018 7:38 AM
To: af@afmug.com
Subject: Re: [AFMUG] OT: One space versus two spaces (again)

They taught me in high school to double tap the spacebar after a
sentence.  That was 1996.  No mention of one space that I recall.
Almost nobody was using type writers at that point.

At least they taught me to type and I'm glad for it.  I have a colleague
who hunts and pecks with two fingers on each hand.  This guy has a
masters degree from Harvard, so whenever I see him type I marvel at the
thought that he must have jammed out a 20 page thesis by hunting and
pecking.

For me it's quite literally a tell for how old someone is: before or after 
typewriters. When we were taught typing in middle school it was using 
computers and it was single space. I was *told* that on typewriters it was 
two spaces.

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Steve Jones]

What's this gas tube product placement?
I want to see these

On Wed, May 9, 2018, 9:51 AM  wrote:

> Thanks, yeah nothing fit well next to the thin pcbs.
>
> Odd, got some test results back from George yesterday.  Some types of
> equipment has CRC errors with some of our surge suppressors.  Trying to
> identify the bad combinations.  Good thing is that our gas tube only
> products seem to be flawless with everything that people have tried them
> on.
>
> -Original Message-
> From: Matt
> Sent: Wednesday, May 9, 2018 8:08 AM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
> Chuck,
>
> Like form factor of new arrestors much better.  Thicker PCB and RJ45
> not as tall.  They do not fit well next to your last thin pcb version
> though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
> out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
> even at 1000base.  No errors at all.  This is with RackInjector,
> Cambium Sync and very long cat-5 runs.  Time will tell but looks good
> so far.
>
>
>
> On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> > Matt,
> >
> > I sent you a note off-list.  I would like to send you the gas tube
> version
> > to see if that fixes the issue.
> >
> > Inquiring minds want to know...
> >
> > -Original Message- From: Matt
> > Sent: Wednesday, March 28, 2018 4:08 PM
> > To: af@afmug.com
> > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
> >
> >> OK, so grounds are related to the problem.
> >>
> >> There may be something unusual with timing pulses on the power that is
> >> causing the surge suppressor to fire.
> >> Forrest would know much more than I about that.
> >>
> >> I honestly don’t know if anyone has tried my product with a Medusa
> >> before.
> >> I have a 100% gas tube version that may solve the problem.
> >
> >
> > I am still having some troubles with PTP450i holding 1gbit ethernet
> > even with Cambium sync.  Not near as bad with Cambium Sync though.
> > Will these gas tube versions work any better?  Will they still keep
> > equipment safe?
>
>

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[George Skorup]

No diodes, just gas-tube for large surge event suppression. Obviously 
not as much protection though. I'm seeing more CRC errors than I'm 
comfortable with on the cards with diodes. Rev G is definitely better 
though. I've broken the shield at various sites while testing to rule 
out any potential ground loop issues. Ran on battery. Etc. It's weird. 
Noise or something, I don't know.


On 5/9/2018 10:32 AM, Steve Jones wrote:

What's this gas tube product placement?
I want to see these

On Wed, May 9, 2018, 9:51 AM > wrote:


Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types of
equipment has CRC errors with some of our surge suppressors.
Trying to
identify the bad combinations.  Good thing is that our gas tube only
products seem to be flawless with everything that people have
tried them on.

-Original Message-
From: Matt
Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with
Medusa

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all. Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,  > wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas
tube version
> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com 
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with
Medusa
>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power
that is
>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a Medusa
>> before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit ethernet
> even with Cambium sync.  Not near as bad with Cambium Sync though.
> Will these gas tube versions work any better?  Will they still keep
> equipment safe?

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[chuck]

https://www.mccowntech.com/product/cat6-100-gas-discharge-tube-rack-mount-surge-protector/

From: Steve Jones 
Sent: Wednesday, May 9, 2018 9:32 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

What's this gas tube product placement? 
I want to see these

On Wed, May 9, 2018, 9:51 AM  wrote:

  Thanks, yeah nothing fit well next to the thin pcbs.

  Odd, got some test results back from George yesterday.  Some types of 
  equipment has CRC errors with some of our surge suppressors.  Trying to 
  identify the bad combinations.  Good thing is that our gas tube only 
  products seem to be flawless with everything that people have tried them on.

  -Original Message- 
  From: Matt
  Sent: Wednesday, May 9, 2018 8:08 AM
  To: af@afmug.com
  Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

  Chuck,

  Like form factor of new arrestors much better.  Thicker PCB and RJ45
  not as tall.  They do not fit well next to your last thin pcb version
  though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
  out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
  even at 1000base.  No errors at all.  This is with RackInjector,
  Cambium Sync and very long cat-5 runs.  Time will tell but looks good
  so far.



  On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
  > Matt,
  >
  > I sent you a note off-list.  I would like to send you the gas tube version
  > to see if that fixes the issue.
  >
  > Inquiring minds want to know...
  >
  > -Original Message- From: Matt
  > Sent: Wednesday, March 28, 2018 4:08 PM
  > To: af@afmug.com
  > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
  >
  >> OK, so grounds are related to the problem.
  >>
  >> There may be something unusual with timing pulses on the power that is
  >> causing the surge suppressor to fire.
  >> Forrest would know much more than I about that.
  >>
  >> I honestly don’t know if anyone has tried my product with a Medusa 
  >> before.
  >> I have a 100% gas tube version that may solve the problem.
  >
  >
  > I am still having some troubles with PTP450i holding 1gbit ethernet
  > even with Cambium sync.  Not near as bad with Cambium Sync though.
  > Will these gas tube versions work any better?  Will they still keep
  > equipment safe? 

Re: [AFMUG] Ubiquiti ER-X

[Matt Hoppes]

Have not had one fail yet since they came out. 

> On May 9, 2018, at 10:36, Adam Moffett  wrote:
> 
> Anybody have any opinions on the reliability of Ubiquiti ER-X and ER-X-SFP 
> routers?
> 
> I was thinking they might be useful for a customer premises 
> router/CPE.one which we control, not the customer.
> 
> 

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[chuck]

Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types of 
equipment has CRC errors with some of our surge suppressors.  Trying to 
identify the bad combinations.  Good thing is that our gas tube only 
products seem to be flawless with everything that people have tried them on.


-Original Message- 
From: Matt

Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:

Matt,

I sent you a note off-list.  I would like to send you the gas tube version
to see if that fixes the issue.

Inquiring minds want to know...

-Original Message- From: Matt
Sent: Wednesday, March 28, 2018 4:08 PM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa


OK, so grounds are related to the problem.

There may be something unusual with timing pulses on the power that is
causing the surge suppressor to fire.
Forrest would know much more than I about that.

I honestly don’t know if anyone has tried my product with a Medusa 
before.

I have a 100% gas tube version that may solve the problem.



I am still having some troubles with PTP450i holding 1gbit ethernet
even with Cambium sync.  Not near as bad with Cambium Sync though.
Will these gas tube versions work any better?  Will they still keep
equipment safe? 

Re: [AFMUG] Ubiquiti ER-X

[Adam Moffett]

Good to hear, thanks.


-- Original Message --
From: "Matt Hoppes" 
To: af@afmug.com
Sent: 5/9/2018 10:37:53 AM
Subject: Re: [AFMUG] Ubiquiti ER-X


Have not had one fail yet since they came out.

On May 9, 2018, at 10:36, Adam Moffett  wrote:

Anybody have any opinions on the reliability of Ubiquiti ER-X and 
ER-X-SFP routers?


I was thinking they might be useful for a customer premises 
router/CPE.one which we control, not the customer.

Re: [AFMUG] ePMP 300 - no DFS (yet?)

[chuck]

It is just trying to save you from FCC troubles Dave.  And it will also not 
open the pod bay doors Dave.  

From: Adam Moffett 
Sent: Wednesday, May 9, 2018 7:39 AM
To: af@afmug.com 
Subject: [AFMUG] ePMP 300 - no DFS (yet?)

So we got some ePMP 300 CPE in, and if we check the boxes to enable DFS 
channels they toss an error and won't save the settings. 

Anybody know what the deal is here?  Coming in the future?

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[George Skorup]

Matt, exactly which card is that? Is that gas-tube only? I did some 
extensive testing at a site yesterday for Chuck. The more data we can 
give him the better we'll all be.


On 5/9/2018 9:08 AM, Matt wrote:

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:

Matt,

I sent you a note off-list.  I would like to send you the gas tube version
to see if that fixes the issue.

Inquiring minds want to know...

-Original Message- From: Matt
Sent: Wednesday, March 28, 2018 4:08 PM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa


OK, so grounds are related to the problem.

There may be something unusual with timing pulses on the power that is
causing the surge suppressor to fire.
Forrest would know much more than I about that.

I honestly don’t know if anyone has tried my product with a Medusa before.
I have a 100% gas tube version that may solve the problem.


I am still having some troubles with PTP450i holding 1gbit ethernet
even with Cambium sync.  Not near as bad with Cambium Sync though.
Will these gas tube versions work any better?  Will they still keep
equipment safe?

Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

[chuck]

I would recommend them.  
https://www.exeltech.com/products/inverters/inverters-above-2k-watt-mx/

Never had a problem with them.  You need either a control card or a master 
inverter in each rack.  
I prefer the control card so all the inverter modules are the same.

I also like the transfer switch so it will cut over to commercial power if the 
inverter rack dies or if you need to shut it down for some reason.  

1000 watts per module.  Add as many modules as you need.  Up to 20kW for single 
phase.  
Sine wave.  

I note that that particular rack I gave the link to on ebay is 24 VDC.  

They do not charge the batteries.  

I use Eltek for battery charging.  If you keep your eye peeled you can get some 
bargains.  
Just bought a whole Eltek shelf for about $495 yesterday off of Ebay.  

From: Gino A. Villarini 
Sent: Wednesday, May 9, 2018 3:18 AM
To: af@afmug.com 
Subject: Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

Chuck, Would you recommend them? How solid are they? What is the wattage of the 
configuration on ebay? Do they charge the batteries?

From: Af  on behalf of Chuck McCown 
Reply-To: "af@afmug.com" 
Date: Tuesday, May 8, 2018 at 5:17 PM
To: "af@afmug.com" 
Subject: Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?





  Gino A. Villarini
 
  President 
  Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 




I have used a lot of these over the years:
https://www.ebay.com/itm/Exeltech-Mx-Series-N-1-Redundant-Expandable-Inverter-System-NSN-6130015361815/273164348175?hash=item3f99dd2b0f

From: Gino A. Villarini
Sent: Tuesday, May 08, 2018 1:58 PM
To: af@afmug.com 
Subject: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

Looking for 48 vdc inverters for data room applications in the range of 6-8 kw

Can be a all in one system ( charger plus Inverter) , must be always online 


  Gino A. Villarini
 
  President 
  Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[chuck]

Funny, the product is so simple.  Jacks.  Tubes.  

Electrodes with gas between them from the Ethernet lines to ground.  

The only way the tubes can affect the circuit is if they are ionized, which 
means a high voltage coming from somewhere.  could be coming from a ground loop 
or ???

Or a tube could be bad, or there could be a solder bridge but the test and 
inspection procedure should have caught that.  


From: Sam Lambie 
Sent: Wednesday, May 9, 2018 9:56 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

FYI, 

I installed the gas tube version on a gigabit  Packetflux Powered Medusa the 
other week and no go. The radio boots up for about 25 seconds, and then shuts 
down.

On Wed, May 9, 2018 at 9:54 AM,  wrote:

  I am going to chase this down.  Only certain types of products have the issue 
it seems.  
  I am going to try to add solid state to the gas tubes using a different 
design that eliminates the steering diodes.
  Seems like the steering diodes are causing the problem in some situations.  

  From: George Skorup 
  Sent: Wednesday, May 9, 2018 9:50 AM
  To: af@afmug.com 
  Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

  No diodes, just gas-tube for large surge event suppression. Obviously not as 
much protection though. I'm seeing more CRC errors than I'm comfortable with on 
the cards with diodes. Rev G is definitely better though. I've broken the 
shield at various sites while testing to rule out any potential ground loop 
issues. Ran on battery. Etc. It's weird. Noise or something, I don't know.


  On 5/9/2018 10:32 AM, Steve Jones wrote:

What's this gas tube product placement? 
I want to see these

On Wed, May 9, 2018, 9:51 AM  wrote:

  Thanks, yeah nothing fit well next to the thin pcbs.

  Odd, got some test results back from George yesterday.  Some types of 
  equipment has CRC errors with some of our surge suppressors.  Trying to 
  identify the bad combinations.  Good thing is that our gas tube only 
  products seem to be flawless with everything that people have tried them 
on.

  -Original Message- 
  From: Matt
  Sent: Wednesday, May 9, 2018 8:08 AM
  To: af@afmug.com
  Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

  Chuck,

  Like form factor of new arrestors much better.  Thicker PCB and RJ45
  not as tall.  They do not fit well next to your last thin pcb version
  though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
  out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
  even at 1000base.  No errors at all.  This is with RackInjector,
  Cambium Sync and very long cat-5 runs.  Time will tell but looks good
  so far.



  On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
  > Matt,
  >
  > I sent you a note off-list.  I would like to send you the gas tube 
version
  > to see if that fixes the issue.
  >
  > Inquiring minds want to know...
  >
  > -Original Message- From: Matt
  > Sent: Wednesday, March 28, 2018 4:08 PM
  > To: af@afmug.com
  > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
  >
  >> OK, so grounds are related to the problem.
  >>
  >> There may be something unusual with timing pulses on the power that is
  >> causing the surge suppressor to fire.
  >> Forrest would know much more than I about that.
  >>
  >> I honestly don’t know if anyone has tried my product with a Medusa 
  >> before.
  >> I have a 100% gas tube version that may solve the problem.
  >
  >
  > I am still having some troubles with PTP450i holding 1gbit ethernet
  > even with Cambium sync.  Not near as bad with Cambium Sync though.
  > Will these gas tube versions work any better?  Will they still keep
  > equipment safe? 








-- 

-- 
Sam Lambie
Taosnet Wireless Tech.
575-758-7598 Office
www.Taosnet.com

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Matt]

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas tube version
> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power that is
>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a Medusa before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit ethernet
> even with Cambium sync.  Not near as bad with Cambium Sync though.
> Will these gas tube versions work any better?  Will they still keep
> equipment safe?

Re: [AFMUG] ePMP 300 - no DFS (yet?)

[Adam Moffett]

Interestingly it only throws the error if you enable 40mhz channel size. 
 On 20mhz channel it's no problem.



-- Original Message --
From: "Dave" 
To: af@afmug.com
Sent: 5/9/2018 10:05:01 AM
Subject: Re: [AFMUG] ePMP 300 - no DFS (yet?)

Verify power settings and review error message. DFS has very low power 
settings.

Also ant gain setting can throw an error


On 05/09/2018 08:39 AM, Adam Moffett wrote:
So we got some ePMP 300 CPE in, and if we check the boxes to enable 
DFS channels they toss an error and won't save the settings.


Anybody know what the deal is here?  Coming in the future?


--

Re: [AFMUG] crowdsource troubleshooting

[Jaime Solorza]

You are self aware?

Jaime Solorza

On Tue, May 8, 2018, 11:03 PM Philip Rankin  wrote:

> Hey Josh,
>
> The new ePMP gigabit interfaces will work both polarities.  You can
> actually use the old PMP100 power supplies with no issues that I have had
> so far.  I have only left a couple in that mode because the existing
> customer wasn't home when we did the swap. All Cambium had to do was use a
> bridge on the input and as long as the voltage and current capabilities
> were acceptable.
>
> 1001001,
>
> Phil
>
>Phil
>
> Philip J. Rankin, CEO
> Wireless Telecommunications, Corp.
> A division of;
> Mobilcom Wireless Services
> PO Box 24
> Pittsburg, KS  66762
> 620-231-8188
>
> On Tue, May 8, 2018 at 2:53 PM, Josh Luthman 
> wrote:
>
>> Any polarity or any pinout?  Pretty sure the Ubnt AirMax NanoBeam 25dbi
>> units will do gigabit but only do the old fashion 24v 45+ 78-.  Reverse
>> polarity seems awfully sketch to me.
>>
>>
>> Josh Luthman
>> Office: 937-552-2340
>> Direct: 937-552-2343
>> 1100 Wayne St
>> 
>> Suite 1337
>> 
>> Troy, OH 45373
>> 
>>
>> On Tue, May 8, 2018 at 2:25 PM, Mathew Howard 
>> wrote:
>>
>>> As far as I know, all of the ubnt gear with gigabit ports will take any
>>> poe polarity... As long as there's a pair with negative and a pair with
>>> positive, they'll turn on. I don't see that ubnt adding a second negative
>>> pair will really affect anything, unless netonix did that as well.
>>>
>>> On Tue, May 8, 2018, 11:53 AM Adam Moffett  wrote:
>>>
 If that's right, would that mean 0.5amp on 4&5 and 0.25amp on 3&6,7&8 ?
 Is it a 0.5amp fuse?


 -- Original Message --
 From: "Jeremy" 
 To: af@afmug.com
 Sent: 5/8/2018 11:42:35 AM
 Subject: Re: [AFMUG] crowdsource troubleshooting

 No, that is not true, it adds an additional ground on 3&6.  So to
 obtain a gigabit connection you have + on 4&5 and - on 3&6, 7&8.  All of
 the present day UBNT gear is like this since they added gigabit Ethernet.
 When we upgrade we add a jumper to 3&6 to get it to negotiate at gigabit,
 but they seem to operate at 100FDX without it.

 On Tue, May 8, 2018 at 9:30 AM, Jacob Turner 
 wrote:

> The Prism Gen 2 uses "standard" UBNT passive 24v POE.  +4,5 -7,8.
> I've seen netonix switches claiming as much as 12 watts draw from one when
> running.  I wouldn't be surprised if their startup draw may be a bit 
> higher.
>
> On Tue, May 8, 2018 at 8:16 AM,  wrote:
>
>> I need help in understanding a product failure.
>>
>> I have now had two customers with similar failures in my POE fuse
>> product.  The fuses are blowing.
>> So far it is limited to the fuses on pins 4/5.
>>
>> One customer is using:
>> UBNT 5AC Prism Gen 2 radio, Mikrotik 411 boards, using both poes and
>> netonix as the power supply.
>>
>> What pins and polarities does that radio use for POE?  How much
>> current?
>>
>> I may need higher rated fuses or slower fuses.  But I can only go so
>> high before it is not protecting Netonix thus becoming an expensive CAT5
>> splice.
>>
>> My ideas so far:
>>
>> I need a slower reacting fuse.
>>
>> I need a higher amp rating fuse.  (not sure how high I can go and
>> still protect Netonix)
>>
>> Some loads have unanticipated currents on those wires.
>>
>> Plugging in when powered may cause a connection sequence problem
>> where if pin 4 makes contact first the whole load will go through that 
>> wire
>> and blow that fuse.
>>
>>
>
>

>>
>

[AFMUG] ePMP 300 - no DFS (yet?)

[Adam Moffett]

So we got some ePMP 300 CPE in, and if we check the boxes to enable DFS 
channels they toss an error and won't save the settings.


Anybody know what the deal is here?  Coming in the future?

Re: [AFMUG] OT: One space versus two spaces (again)

[Adam Moffett]

They taught me in high school to double tap the spacebar after a 
sentence.  That was 1996.  No mention of one space that I recall.  
Almost nobody was using type writers at that point.


At least they taught me to type and I'm glad for it.  I have a colleague 
who hunts and pecks with two fingers on each hand.  This guy has a 
masters degree from Harvard, so whenever I see him type I marvel at the 
thought that he must have jammed out a 20 page thesis by hunting and 
pecking.


For me it's quite literally a tell for how old someone is: before or 
after typewriters. When we were taught typing in middle school it was 
using computers and it was single space. I was *told* that on 
typewriters it was two spaces.

Re: [AFMUG] ePMP 300 - no DFS (yet?)

[Dave]

Verify power settings and review error message. DFS has very low power 
settings.

Also ant gain setting can throw an error


On 05/09/2018 08:39 AM, Adam Moffett wrote:
So we got some ePMP 300 CPE in, and if we check the boxes to enable 
DFS channels they toss an error and won't save the settings.


Anybody know what the deal is here?  Coming in the future?


--

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Steve Jones]

i vote MT radioactive tubes

On Wed, May 9, 2018 at 11:41 AM,  wrote:

> They are light sensitive if they are made out of glass.  Not so much with
> the ceramics.
> The mixture of gasses set the breakdown voltage.  The ones I use fire at
> about 90 volts.
>
> I remember working at sites where the gas tubes were filled with
> radioactive gases.
>
> *From:* Adam Moffett
> *Sent:* Wednesday, May 9, 2018 10:23 AM
> *To:* af@afmug.com
> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
> I thought it took hundreds of volts to trigger a gas tube.
>
> Aren't some of them light sensitive?  What if the APC chassis was near a
> window and getting direct sunlight?
>
>
> -- Original Message --
> From: ch...@wbmfg.com
> To: af@afmug.com
> Sent: 5/9/2018 12:00:20 PM
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
>
> Funny, the product is so simple.  Jacks.  Tubes.
>
> Electrodes with gas between them from the Ethernet lines to ground.
>
> The only way the tubes can affect the circuit is if they are ionized,
> which means a high voltage coming from somewhere.  could be coming from a
> ground loop or ???
>
> Or a tube could be bad, or there could be a solder bridge but the test and
> inspection procedure should have caught that.
>
>
> *From:* Sam Lambie
> *Sent:* Wednesday, May 9, 2018 9:56 AM
> *To:* af@afmug.com
> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>
> FYI,
>
> I installed the gas tube version on a gigabit  Packetflux Powered Medusa
> the other week and no go. The radio boots up for about 25 seconds, and then
> shuts down.
>
> On Wed, May 9, 2018 at 9:54 AM,  wrote:
>
>> I am going to chase this down.  Only certain types of products have the
>> issue it seems.
>> I am going to try to add solid state to the gas tubes using a different
>> design that eliminates the steering diodes.
>> Seems like the steering diodes are causing the problem in some
>> situations.
>>
>> *From:* George Skorup
>> *Sent:* Wednesday, May 9, 2018 9:50 AM
>> *To:* af@afmug.com
>> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>
>> No diodes, just gas-tube for large surge event suppression. Obviously not
>> as much protection though. I'm seeing more CRC errors than I'm comfortable
>> with on the cards with diodes. Rev G is definitely better though. I've
>> broken the shield at various sites while testing to rule out any potential
>> ground loop issues. Ran on battery. Etc. It's weird. Noise or something, I
>> don't know.
>>
>> On 5/9/2018 10:32 AM, Steve Jones wrote:
>>
>> What's this gas tube product placement?
>> I want to see these
>>
>> On Wed, May 9, 2018, 9:51 AM  wrote:
>>
>>> Thanks, yeah nothing fit well next to the thin pcbs.
>>>
>>> Odd, got some test results back from George yesterday.  Some types of
>>> equipment has CRC errors with some of our surge suppressors.  Trying to
>>> identify the bad combinations.  Good thing is that our gas tube only
>>> products seem to be flawless with everything that people have tried them
>>> on.
>>>
>>> -Original Message-
>>> From: Matt
>>> Sent: Wednesday, May 9, 2018 8:08 AM
>>> To: af@afmug.com
>>> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>>
>>> Chuck,
>>>
>>> Like form factor of new arrestors much better.  Thicker PCB and RJ45
>>> not as tall.  They do not fit well next to your last thin pcb version
>>> though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
>>> out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
>>> even at 1000base.  No errors at all.  This is with RackInjector,
>>> Cambium Sync and very long cat-5 runs.  Time will tell but looks good
>>> so far.
>>>
>>>
>>>
>>> On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
>>> > Matt,
>>> >
>>> > I sent you a note off-list.  I would like to send you the gas tube
>>> version
>>> > to see if that fixes the issue.
>>> >
>>> > Inquiring minds want to know...
>>> >
>>> > -Original Message- From: Matt
>>> > Sent: Wednesday, March 28, 2018 4:08 PM
>>> > To: af@afmug.com
>>> > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>> >
>>> >> OK, so grounds are related to the problem.
>>> >>
>>> >> There may be something unusual with timing pulses on the power that is
>>> >> causing the surge suppressor to fire.
>>> >> Forrest would know much more than I about that.
>>> >>
>>> >> I honestly don’t know if anyone has tried my product with a Medusa
>>> >> before.
>>> >> I have a 100% gas tube version that may solve the problem.
>>> >
>>> >
>>> > I am still having some troubles with PTP450i holding 1gbit ethernet
>>> > even with Cambium sync.  Not near as bad with Cambium Sync though.
>>> > Will these gas tube versions work any better?  Will they still keep
>>> > equipment safe?
>>>
>>>
>>
>
>
> --
> --
> *Sam Lambie*
> Taosnet Wireless Tech.
> 575-758-7598 Office
> 

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Adam Moffett]

I thought it took hundreds of volts to trigger a gas tube.

Aren't some of them light sensitive?  What if the APC chassis was near a 
window and getting direct sunlight?



-- Original Message --
From: ch...@wbmfg.com
To: af@afmug.com
Sent: 5/9/2018 12:00:20 PM
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa


Funny, the product is so simple.  Jacks.  Tubes.

Electrodes with gas between them from the Ethernet lines to ground.

The only way the tubes can affect the circuit is if they are ionized, 
which means a high voltage coming from somewhere.  could be coming from 
a ground loop or ???


Or a tube could be bad, or there could be a solder bridge but the test 
and inspection procedure should have caught that.



From:Sam Lambie
Sent: Wednesday, May 9, 2018 9:56 AM
To:af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

FYI,

I installed the gas tube version on a gigabit  Packetflux Powered 
Medusa the other week and no go. The radio boots up for about 25 
seconds, and then shuts down.


On Wed, May 9, 2018 at 9:54 AM,  wrote:
I am going to chase this down.  Only certain types of products have 
the issue it seems.
I am going to try to add solid state to the gas tubes using a 
different design that eliminates the steering diodes.
Seems like the steering diodes are causing the problem in some 
situations.


From:George Skorup
Sent: Wednesday, May 9, 2018 9:50 AM
To:af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


No diodes, just gas-tube for large surge event suppression. Obviously 
not as much protection though. I'm seeing more CRC errors than I'm 
comfortable with on the cards with diodes. Rev G is definitely better 
though. I've broken the shield at various sites while testing to rule 
out any potential ground loop issues. Ran on battery. Etc. It's weird. 
Noise or something, I don't know.


On 5/9/2018 10:32 AM, Steve Jones wrote:

What's this gas tube product placement?
I want to see these

On Wed, May 9, 2018, 9:51 AM  wrote:

Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types 
of
equipment has CRC errors with some of our surge suppressors.  Trying 
to

identify the bad combinations.  Good thing is that our gas tube only
products seem to be flawless with everything that people have tried 
them on.


-Original Message-
From: Matt
Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb 
version
though.  Did not care for the thin pcb and tall RJ45 at all.  
Swapped

out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks 
good

so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas tube 
version

> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa

>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power 
that is

>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a 
Medusa

>> before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit 
ethernet

> even with Cambium sync.  Not near as bad with Cambium Sync though.
> Will these gas tube versions work any better?  Will they still 
keep

> equipment safe?







--
--
Sam Lambie
Taosnet Wireless Tech.
575-758-7598 Office
www.Taosnet.com 

Re: [AFMUG] Good tower for 100'

[James Howard]

Dredging up an old thread here.  What did you end up going with Chuck?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Needs to be self supporting.

From: Chuck McCown
Sent: Monday, October 09, 2017 1:31 PM
To: af@afmug.com
Subject: [AFMUG] Good tower for 100'

Found a 96 footer Titan from Tessco for about $4600.
Any better deals or stronger towers for a similar price?

Total Control Panel

Login


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From: 
0100015f029f9688-b97f5514-f4a3-44e2-afb0-4ce5742bde41-000...@amazonses.com


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Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[chuck]

They are light sensitive if they are made out of glass.  Not so much with the 
ceramics.
The mixture of gasses set the breakdown voltage.  The ones I use fire at about 
90 volts.  

I remember working at sites where the gas tubes were filled with radioactive 
gases.  

From: Adam Moffett 
Sent: Wednesday, May 9, 2018 10:23 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

I thought it took hundreds of volts to trigger a gas tube.

Aren't some of them light sensitive?  What if the APC chassis was near a window 
and getting direct sunlight?


-- Original Message --
From: ch...@wbmfg.com
To: af@afmug.com
Sent: 5/9/2018 12:00:20 PM
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

  Funny, the product is so simple.  Jacks.  Tubes.  

  Electrodes with gas between them from the Ethernet lines to ground.  

  The only way the tubes can affect the circuit is if they are ionized, which 
means a high voltage coming from somewhere.  could be coming from a ground loop 
or ???

  Or a tube could be bad, or there could be a solder bridge but the test and 
inspection procedure should have caught that.  


  From: Sam Lambie 
  Sent: Wednesday, May 9, 2018 9:56 AM
  To: af@afmug.com 
  Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

  FYI, 

  I installed the gas tube version on a gigabit  Packetflux Powered Medusa the 
other week and no go. The radio boots up for about 25 seconds, and then shuts 
down.

  On Wed, May 9, 2018 at 9:54 AM,  wrote:

I am going to chase this down.  Only certain types of products have the 
issue it seems.  
I am going to try to add solid state to the gas tubes using a different 
design that eliminates the steering diodes.
Seems like the steering diodes are causing the problem in some situations.  

From: George Skorup 
Sent: Wednesday, May 9, 2018 9:50 AM
To: af@afmug.com 
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

No diodes, just gas-tube for large surge event suppression. Obviously not 
as much protection though. I'm seeing more CRC errors than I'm comfortable with 
on the cards with diodes. Rev G is definitely better though. I've broken the 
shield at various sites while testing to rule out any potential ground loop 
issues. Ran on battery. Etc. It's weird. Noise or something, I don't know.


On 5/9/2018 10:32 AM, Steve Jones wrote:

  What's this gas tube product placement? 
  I want to see these

  On Wed, May 9, 2018, 9:51 AM  wrote:

Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types of 
equipment has CRC errors with some of our surge suppressors.  Trying to 
identify the bad combinations.  Good thing is that our gas tube only 
products seem to be flawless with everything that people have tried 
them on.

-Original Message- 
From: Matt
Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

Chuck,

Like form factor of new arrestors much better.  Thicker PCB and RJ45
not as tall.  They do not fit well next to your last thin pcb version
though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks good
so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas tube 
version
> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa
>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power that 
is
>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a Medusa 
>> before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit ethernet
> even with Cambium sync.  Not near as bad with Cambium Sync though.
> Will these gas tube versions work any better?  Will they still keep
> equipment safe? 








  -- 

  -- 
  Sam Lambie
  Taosnet Wireless Tech.
  575-758-7598 Office
  

Re: [AFMUG] Good tower for 100'

[chuck]

Rohn SSV.

From: James Howard 
Sent: Wednesday, May 9, 2018 10:30 AM
To: 'af@afmug.com' 
Subject: Re: [AFMUG] Good tower for 100'

Dredging up an old thread here.  What did you end up going with Chuck?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

Needs to be self supporting.

 

From: Chuck McCown 

Sent: Monday, October 09, 2017 1:31 PM

To: af@afmug.com 

Subject: [AFMUG] Good tower for 100'

 

Found a 96 footer Titan from Tessco for about $4600.

Any better deals or stronger towers for a similar price?




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Re: [AFMUG] Good tower for 100'

[James Howard]

What did it end up costing?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 11:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Rohn SSV.

From: James Howard
Sent: Wednesday, May 9, 2018 10:30 AM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

Dredging up an old thread here.  What did you end up going with Chuck?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Needs to be self supporting.

From: Chuck McCown
Sent: Monday, October 09, 2017 1:31 PM
To: af@afmug.com
Subject: [AFMUG] Good tower for 100'

Found a 96 footer Titan from Tessco for about $4600.
Any better deals or stronger towers for a similar price?

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Re: [AFMUG] Good tower for 100'

[James Howard]

Sounds like roughly $12k total.  Thanks much!  That helps a lot.

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 1:51 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Not really sure as we did most of it ourself.  Probably $2000 for the 
foundation and another $1500 for erection.

From: James Howard
Sent: Wednesday, May 9, 2018 12:44 PM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

What did you end up spending to install it?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of 
ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 1:40 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'


$5,721.00 + Tax and shipping


$7,889.00

From: James Howard
Sent: Wednesday, May 9, 2018 11:40 AM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

What did it end up costing?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of 
ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 11:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Rohn SSV.

From: James Howard
Sent: Wednesday, May 9, 2018 10:30 AM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

Dredging up an old thread here.  What did you end up going with Chuck?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Needs to be self supporting.

From: Chuck McCown
Sent: Monday, October 09, 2017 1:31 PM
To: af@afmug.com
Subject: [AFMUG] Good tower for 100'

Found a 96 footer Titan from Tessco for about $4600.
Any better deals or stronger towers for a similar price?

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Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Adam Moffett]

Nookular Surge Suppressor™


-- Original Message --
From: "Steve Jones" 
To: af@afmug.com
Sent: 5/9/2018 1:34:18 PM
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa


i vote MT radioactive tubes

On Wed, May 9, 2018 at 11:41 AM,  wrote:
They are light sensitive if they are made out of glass.  Not so much 
with the ceramics.
The mixture of gasses set the breakdown voltage.  The ones I use fire 
at about 90 volts.


I remember working at sites where the gas tubes were filled with 
radioactive gases.


From:Adam Moffett
Sent: Wednesday, May 9, 2018 10:23 AM
To:af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


I thought it took hundreds of volts to trigger a gas tube.

Aren't some of them light sensitive?  What if the APC chassis was near 
a window and getting direct sunlight?



-- Original Message --
From: ch...@wbmfg.com
To: af@afmug.com
Sent: 5/9/2018 12:00:20 PM
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa



Funny, the product is so simple.  Jacks.  Tubes.

Electrodes with gas between them from the Ethernet lines to ground.

The only way the tubes can affect the circuit is if they are ionized, 
which means a high voltage coming from somewhere.  could be coming 
from a ground loop or ???


Or a tube could be bad, or there could be a solder bridge but the 
test and inspection procedure should have caught that.



From:Sam Lambie
Sent: Wednesday, May 9, 2018 9:56 AM
To:af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


FYI,

I installed the gas tube version on a gigabit  Packetflux Powered 
Medusa the other week and no go. The radio boots up for about 25 
seconds, and then shuts down.


On Wed, May 9, 2018 at 9:54 AM,  wrote:
I am going to chase this down.  Only certain types of products have 
the issue it seems.
I am going to try to add solid state to the gas tubes using a 
different design that eliminates the steering diodes.
Seems like the steering diodes are causing the problem in some 
situations.


From:George Skorup
Sent: Wednesday, May 9, 2018 9:50 AM
To:af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


No diodes, just gas-tube for large surge event suppression. 
Obviously not as much protection though. I'm seeing more CRC errors 
than I'm comfortable with on the cards with diodes. Rev G is 
definitely better though. I've broken the shield at various sites 
while testing to rule out any potential ground loop issues. Ran on 
battery. Etc. It's weird. Noise or something, I don't know.


On 5/9/2018 10:32 AM, Steve Jones wrote:

What's this gas tube product placement?
I want to see these

On Wed, May 9, 2018, 9:51 AM  wrote:

Thanks, yeah nothing fit well next to the thin pcbs.

Odd, got some test results back from George yesterday.  Some types 
of
equipment has CRC errors with some of our surge suppressors.  
Trying to
identify the bad combinations.  Good thing is that our gas tube 
only
products seem to be flawless with everything that people have 
tried them on.


-Original Message-
From: Matt
Sent: Wednesday, May 9, 2018 8:08 AM
To: af@afmug.com
Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa


Chuck,

Like form factor of new arrestors much better.  Thicker PCB and 
RJ45
not as tall.  They do not fit well next to your last thin pcb 
version
though.  Did not care for the thin pcb and tall RJ45 at all.  
Swapped
out 4 PxP450i APC arrestors to these 17 hours ago.  So far 
flawless

even at 1000base.  No errors at all.  This is with RackInjector,
Cambium Sync and very long cat-5 runs.  Time will tell but looks 
good

so far.



On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
> Matt,
>
> I sent you a note off-list.  I would like to send you the gas 
tube version

> to see if that fixes the issue.
>
> Inquiring minds want to know...
>
> -Original Message- From: Matt
> Sent: Wednesday, March 28, 2018 4:08 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with 
Medusa

>
>> OK, so grounds are related to the problem.
>>
>> There may be something unusual with timing pulses on the power 
that is

>> causing the surge suppressor to fire.
>> Forrest would know much more than I about that.
>>
>> I honestly don’t know if anyone has tried my product with a 
Medusa

>> before.
>> I have a 100% gas tube version that may solve the problem.
>
>
> I am still having some troubles with PTP450i holding 1gbit 
ethernet
> even with Cambium sync.  Not near as bad with Cambium Sync 
though.
> Will these gas tube versions work any better?  Will they still 
keep

> equipment safe?







--
--
Sam Lambie
Taosnet Wireless Tech.
575-758-7598 Office
www.Taosnet.com 

Re: [AFMUG] Good tower for 100'

[chuck]

$5,721.00 + Tax and shipping



$7,889.00 

From: James Howard 
Sent: Wednesday, May 9, 2018 11:40 AM
To: 'af@afmug.com' 
Subject: Re: [AFMUG] Good tower for 100'

What did it end up costing?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 11:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

Rohn SSV.

 

From: James Howard 

Sent: Wednesday, May 9, 2018 10:30 AM

To: 'af@afmug.com' 

Subject: Re: [AFMUG] Good tower for 100'

 

Dredging up an old thread here.  What did you end up going with Chuck?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

Needs to be self supporting.

 

From: Chuck McCown 

Sent: Monday, October 09, 2017 1:31 PM

To: af@afmug.com 

Subject: [AFMUG] Good tower for 100'

 

Found a 96 footer Titan from Tessco for about $4600.

Any better deals or stronger towers for a similar price?




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Re: [AFMUG] Good tower for 100'

[James Howard]

What did you end up spending to install it?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 1:40 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'


$5,721.00 + Tax and shipping


$7,889.00

From: James Howard
Sent: Wednesday, May 9, 2018 11:40 AM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

What did it end up costing?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of 
ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 11:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Rohn SSV.

From: James Howard
Sent: Wednesday, May 9, 2018 10:30 AM
To: 'af@afmug.com'
Subject: Re: [AFMUG] Good tower for 100'

Dredging up an old thread here.  What did you end up going with Chuck?

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

Needs to be self supporting.

From: Chuck McCown
Sent: Monday, October 09, 2017 1:31 PM
To: af@afmug.com
Subject: [AFMUG] Good tower for 100'

Found a 96 footer Titan from Tessco for about $4600.
Any better deals or stronger towers for a similar price?

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[AFMUG] OT such a deal

[chuck]

My #2 son just got accepted to grad school, government will pay for school and 
keep his payroll running while he is in school.  (He is an EE at Hill Air force 
Base).  Such a good deal.  I am proud and jealous all at the same time.  

Re: [AFMUG] Good tower for 100'

[chuck]

Not really sure as we did most of it ourself.  Probably $2000 for the 
foundation and another $1500 for erection.  

From: James Howard 
Sent: Wednesday, May 9, 2018 12:44 PM
To: 'af@afmug.com' 
Subject: Re: [AFMUG] Good tower for 100'

What did you end up spending to install it?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 1:40 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

$5,721.00 + Tax and shipping

 

$7,889.00 

 

From: James Howard 

Sent: Wednesday, May 9, 2018 11:40 AM

To: 'af@afmug.com' 

Subject: Re: [AFMUG] Good tower for 100'

 

What did it end up costing?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Wednesday, May 9, 2018 11:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

Rohn SSV.

 

From: James Howard 

Sent: Wednesday, May 9, 2018 10:30 AM

To: 'af@afmug.com' 

Subject: Re: [AFMUG] Good tower for 100'

 

Dredging up an old thread here.  What did you end up going with Chuck?

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, October 9, 2017 2:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] Good tower for 100'

 

Needs to be self supporting.

 

From: Chuck McCown 

Sent: Monday, October 09, 2017 1:31 PM

To: af@afmug.com 

Subject: [AFMUG] Good tower for 100'

 

Found a 96 footer Titan from Tessco for about $4600.

Any better deals or stronger towers for a similar price?




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Re: [AFMUG] OT such a deal

[Cameron Crum]

Very nice!

On Wed, May 9, 2018 at 2:18 PM,  wrote:

> My #2 son just got accepted to grad school, government will pay for school
> and keep his payroll running while he is in school.  (He is an EE at Hill
> Air force Base).  Such a good deal.  I am proud and jealous all at the same
> time.
>

Re: [AFMUG] OT such a deal

[Jaime Solorza]

Congrats .#2 son?  Now you are Charlie Chan?

Jaime Solorza

On Wed, May 9, 2018, 1:18 PM  wrote:

> My #2 son just got accepted to grad school, government will pay for school
> and keep his payroll running while he is in school.  (He is an EE at Hill
> Air force Base).  Such a good deal.  I am proud and jealous all at the same
> time.
>

Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa

[Forrest Christian (List Account)]

Just curious... does the rackinjector show the port in a tripped state
afterwards?

I'm assuming this boots just fine without the surge suppressor?

On Wed, May 9, 2018 at 9:56 AM, Sam Lambie  wrote:

> FYI,
>
> I installed the gas tube version on a gigabit  Packetflux Powered Medusa
> the other week and no go. The radio boots up for about 25 seconds, and then
> shuts down.
>
> On Wed, May 9, 2018 at 9:54 AM,  wrote:
>
>> I am going to chase this down.  Only certain types of products have the
>> issue it seems.
>> I am going to try to add solid state to the gas tubes using a different
>> design that eliminates the steering diodes.
>> Seems like the steering diodes are causing the problem in some
>> situations.
>>
>> *From:* George Skorup
>> *Sent:* Wednesday, May 9, 2018 9:50 AM
>> *To:* af@afmug.com
>> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>
>> No diodes, just gas-tube for large surge event suppression. Obviously not
>> as much protection though. I'm seeing more CRC errors than I'm comfortable
>> with on the cards with diodes. Rev G is definitely better though. I've
>> broken the shield at various sites while testing to rule out any potential
>> ground loop issues. Ran on battery. Etc. It's weird. Noise or something, I
>> don't know.
>>
>> On 5/9/2018 10:32 AM, Steve Jones wrote:
>>
>> What's this gas tube product placement?
>> I want to see these
>>
>> On Wed, May 9, 2018, 9:51 AM  wrote:
>>
>>> Thanks, yeah nothing fit well next to the thin pcbs.
>>>
>>> Odd, got some test results back from George yesterday.  Some types of
>>> equipment has CRC errors with some of our surge suppressors.  Trying to
>>> identify the bad combinations.  Good thing is that our gas tube only
>>> products seem to be flawless with everything that people have tried them
>>> on.
>>>
>>> -Original Message-
>>> From: Matt
>>> Sent: Wednesday, May 9, 2018 8:08 AM
>>> To: af@afmug.com
>>> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>>
>>> Chuck,
>>>
>>> Like form factor of new arrestors much better.  Thicker PCB and RJ45
>>> not as tall.  They do not fit well next to your last thin pcb version
>>> though.  Did not care for the thin pcb and tall RJ45 at all.  Swapped
>>> out 4 PxP450i APC arrestors to these 17 hours ago.  So far flawless
>>> even at 1000base.  No errors at all.  This is with RackInjector,
>>> Cambium Sync and very long cat-5 runs.  Time will tell but looks good
>>> so far.
>>>
>>>
>>>
>>> On Wed, Apr 4, 2018 at 10:29 AM,   wrote:
>>> > Matt,
>>> >
>>> > I sent you a note off-list.  I would like to send you the gas tube
>>> version
>>> > to see if that fixes the issue.
>>> >
>>> > Inquiring minds want to know...
>>> >
>>> > -Original Message- From: Matt
>>> > Sent: Wednesday, March 28, 2018 4:08 PM
>>> > To: af@afmug.com
>>> > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa
>>> >
>>> >> OK, so grounds are related to the problem.
>>> >>
>>> >> There may be something unusual with timing pulses on the power that is
>>> >> causing the surge suppressor to fire.
>>> >> Forrest would know much more than I about that.
>>> >>
>>> >> I honestly don’t know if anyone has tried my product with a Medusa
>>> >> before.
>>> >> I have a 100% gas tube version that may solve the problem.
>>> >
>>> >
>>> > I am still having some troubles with PTP450i holding 1gbit ethernet
>>> > even with Cambium sync.  Not near as bad with Cambium Sync though.
>>> > Will these gas tube versions work any better?  Will they still keep
>>> > equipment safe?
>>>
>>>
>>
>
>
> --
> --
> *Sam Lambie*
> Taosnet Wireless Tech.
> 575-758-7598 Office
> www.Taosnet.com 
>



-- 
*Forrest Christian* *CEO**, PacketFlux Technologies, Inc.*
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
forre...@imach.com | http://www.packetflux.com
  

Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

[Eric Kuhnke]

You could also look into individual 1500W meanwell true sine wave
inverters, running in parallel off your 48vdc battery bus. You can parallel
as many as you need. Don't load any individual one with more than 1300W
constant. Wire up the output from each meanwell to 120vac PDUs with
amperage meter inline and distribute from there.

On Tue, May 8, 2018, 12:58 PM Gino A. Villarini  wrote:

> Looking for 48 vdc inverters for data room applications in the range of
> 6-8 kw
>
> Can be a all in one system ( charger plus Inverter) , must be always
> online
>
>
>
> *Gino A. Villarini*
> President
> Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968
>
>

Re: [AFMUG] Ubiquiti ER-X

[Eric Kuhnke]

Also have not seen one fail yet. Most likely to die thing is probably the
AC to DC wall wart which is cheap. Uses the same barrel size as many 3.5"
external HDD which are typically 12vdc 1.5a adapter.

On Wed, May 9, 2018, 7:37 AM Matt Hoppes 
wrote:

> Have not had one fail yet since they came out.
>
> On May 9, 2018, at 10:36, Adam Moffett  wrote:
>
> Anybody have any opinions on the reliability of Ubiquiti ER-X and ER-X-SFP
> routers?
>
> I was thinking they might be useful for a customer premises
> router/CPE.one which we control, not the customer.
>
>
>