Do the distributors have the gas tube version, or are both versions
available currently?

On Thu, Jun 14, 2018 at 10:57 AM, <[email protected]> wrote:

> Yep.  This is the interesting thing.  Lots of Gig radios use my solid
> state hybrid surge suppressors and have done so for years without
> problems.
>
> It has only been in the last year or two the people have started
> complaining about flapping/CRC/Frame Check errors that are related to the
> surge suppressor.
>
> It is only with certain radios.  ePMP, some AF11X and apparently MT and
> Mimosa.   But the very first application for this product was my own AF11X
> radios and they ran fine for many years.
>
> Not sure if the radio vendors are using more sensitive phy circuits or
> what.  But that is why I developed the CAT6 series of products.  It is a
> bit slower than the solid state hybrid circuits but it is very robust and
> does not cause the data errors.  I was able to get the cost down to about
> the same price.  Finding a good source of the gas discharge tubes that were
> not horribly expensive took some time.
>
> *From:* Jason McKemie
> *Sent:* Thursday, June 14, 2018 9:50 AM
> *To:* [email protected]
> *Subject:* [AFMUG] Mikrotik / Mimosa Ethernet Errors
>
> Just attempting to continue this thread.
>
> It was definitely the surge suppressor.  I took the one out of in-line at
> the bottom and errors went away.  I had tried to put one up top, but
> couldn't get the A5 to even power up with it inline, so there isn't one
> present up there anyhow.
>
> Now, how do I determine which version I'm getting? I have a few of the
> earlier versions sitting around that it appears are not going to work well
> for this application.  Strangely, I have a Ceragon running gigabit through
> the same version with no problems at all.
>
> -Jason
>
> On Sat, Jun 9, 2018 at 6:55 PM, Chuck McCown <[email protected]> wrote:
>
>> Surge suppressors can certainly cause this.
>>
>> Sent from my iPhone
>>
>> > On Jun 9, 2018, at 2:58 PM, George Skorup <[email protected]>
>> wrote:
>> >
>> > What suppressors?
>> >
>> >> On 6/9/2018 3:23 PM, Jason McKemie wrote:
>> >> I have a A5C that is giving me grief.  I'm getting hundreds of Rx FCS
>> errors on the Mikrotik when I'm running gigabit, if I force it to 100 fdx,
>> the Rx FCS errors stop, but Rx Code errors start incrementing instead.
>> I've always gotten some amount of Rx FCS errors from Mimosa A5/A5C units,
>> but not nearly this many.  It's starting to have an effect on service on
>> the sector.
>> >>
>> >> Any ideas what I should look at?  Some people were claiming that
>> putting something like a Netonix in between the Mimosa and the Mikrotik
>> solved their issues, but I'm wondering if the surge suppressors are
>> creating an issue as well.
>> >>
>> >> -Jason
>> >
>>
>
>
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