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: Af@af.afmug.com 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 <ch...@wbmfg.com> wrote: Surge suppressors can certainly cause this. Sent from my iPhone > On Jun 9, 2018, at 2:58 PM, George Skorup <george.sko...@cbcast.com> 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 > -------------------------------------------------------------------------------- -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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