You are correct on your calculations… my spreadsheet formula was wrong ☺ I just came up with 104 watts.
I will ask the question naively.. why would you expect a headache? Isn’t solar tried and true these days? I am dealing with every aspect of surge protection I possibly can at every level already, as this summer has been a monster for us on surges. So, am doing the fiber up the tower in some cases, so I WILL have gear up there, which has its own sets of “concerns” regardless of how I power them. So, is a solar setup not reliable? The “expert” claims that he seeing it more and more in the cellular world, up the tower Paul From: Af [mailto:af-boun...@afmug.com] On Behalf Of Josh Baird Sent: Thursday, September 10, 2015 9:10 PM To: af@afmug.com Subject: Re: [AFMUG] a new one, I think... I would at least allow 7.5W per ePMP radio (specs say 7.5 is typical, can spike to 10), and 10-15W per 320. Maybe another 5-10w per MT radio. That would be close to 100W. You don't want to underestimate power consumption. Regarding your solar question.. I'm not sure, but that sounds like one hell of a headache. Josh On Thu, Sep 10, 2015 at 9:00 PM, Paul McCall <pa...@pdmnet.net<mailto:pa...@pdmnet.net>> wrote: OK, so I am working with a grounding expert today, getting some opinions on a couple difficult towers, and one of the first suggestions he has for me as I mention that I am looking to do fiber / DC up this tower is… “Have you considered going solar up the tower?” (to eliminate power surges completely from going up the tower) Hmmmm… So my brain starts wrestling with that… Is it practical? Say on a tower with a Netonix DC powered switch running at 48v or 24v, powering 6 ePMP APs and 2 320APs, 2 Mikrotik Bhs, and a small Mikortik router. Would be about 50 watts maximum according to my quick calcs. Not knowing anything about solar, has battery technology developed enough that it would be practical (size wise) to have enough batteries and a charge controller up in a box on a tower? And what size solar panel would I need to drive that? Paul Paul McCall, Pres. PDMNet / Florida Broadband 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800<tel:772-564-6800> office 772-473-0352<tel:772-473-0352> cell www.pdmnet.com<http://www.pdmnet.com/> pa...@pdmnet.net<mailto:pa...@pdmnet.net>
