[image: 5lk6g2.jpg] On Wed, Sep 1, 2021 at 1:20 PM Adam Moffett <dmmoff...@gmail.com> wrote:
> +1 > Use SS or blow ports up during thunderstorms. Those are the only two > options. > > Chuck should open a trenchcoat to reveal an assortment of surge protectors > inside. > > > On 9/1/2021 2:15 PM, Chuck McCown via AF wrote: > > When he does this, just for shits connect the PSU at the beginning and > bridge all the middle stuff and just see if it works. I will be it will be > just fine. > > However I am certain he needs a ton of surge protectors at each end of all > ethernet runs.... just sayin’ > > *From:* Steve Jones > *Sent:* Wednesday, September 1, 2021 11:26 AM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] resistivity of cat5 > > thats what i suggested trying first, customer wanted the extender, > irritating > > he finally has caved now and will be putting a network rack in the > midpoint and is going to place a managed switch there instead of all this > other unsupportable cobbling. Sometimes we get a win. > > On Wed, Sep 1, 2021 at 11:55 AM Adam Moffett <dmmoff...@gmail.com> wrote: > >> Maybe a dumb question, but has it already been tried without the >> extender? >> >> 400ft is beyond 100m, but not by all that much. It might just work >> without any faffing around. >> >> >> On 9/1/2021 11:16 AM, Steve Jones wrote: >> >> I have a customer fixed on using >> https://i.mt.lv/cdn/product_files/GPeRqg_190928.pdf to extend his epmp >> f300 radio run to 400+ feet. >> if im calculating this right there will be about a 10v drop on the >> 24guage cat5, taking the 30v down to 20. If it does manage to keep the >> radio powered i see it burning out the poe circuit. >> >> hes fighting me on putting the cambium PSU at the midspan point and using >> his own POE to power the extender. >> >> Ive been overruled about telling the customer no, so its happening, but I >> want to make sure my math is correct >> using https://www.rapidtables.com/calc/wire/voltage-drop-calculator.html >> 24guage, 30v, .5 amp, 400 feet shows 10v drop. but im not sure about the >> resistivity field >> >> this is a guy who runs constant latency monitoring and initiates tickets >> on every blip, so i see this radio move just becoming a nightmare with this >> midspan extender in play >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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