Re: [WISPA] DC UPS (and Solar?) Setup.

2016-07-15 Thread Forrest Christian (List Account)
In relation to the sitemonitor base unit: It's perfectly fine with running off of the battery voltage directly, and can use a different voltage on each voltage input as long as they share the same common. (I.E. +12V battery and +48V regulated is ok, + and - 48VDC is not). Just make sure you fus

Re: [WISPA] DC UPS (and Solar?) Setup.

2016-07-14 Thread Chris Ruschmann
also, size your battery strings to be the same or larger than your load in volts. down covering voltage uses less energy than up converting. so you will lose efficiencies if you go that route. example. running a 12 v battery bank using a netonix DC switch which will up convert to 48v for the switc

Re: [WISPA] DC UPS (and Solar?) Setup.

2016-07-14 Thread Chris Ruschmann
if your interested in understanding the technology, then this site has a lot of information on solar and DC in general. check out the faq's they are worth the read. http://www.solar-electric.com/learning-center Air fibers use a lot of power in DC land. The biggest thing is understanding your load.

Re: [WISPA] DC UPS (and Solar?) Setup.

2016-07-14 Thread Paul Hendry
Nice. How customisable is the charge/discharge side of this unit? Would be interested to see if they can be used with LiFePO4 cells. Also, roughly how much are these units? Many thanks, Paul. On 15/07/2016 12:33, Gino Villarini wrote: Just do use this and be done with all: http://www.alpha.

Re: [WISPA] DC UPS (and Solar?) Setup.

2016-07-14 Thread Gino Villarini
Just do use this and be done with all: http://www.alpha.com/index.php/products-mobile/cable-tv-broadband-products/ item/2448vdc-cordex-psu-2 On 7/14/16, 5:29 PM, "wireless-boun...@wispa.org on behalf of Duncan Gino Villarini President Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 009

[WISPA] DC UPS (and Solar?) Setup.

2016-07-14 Thread Duncan Scott
Hi, So historically we've been a mostly AC setup, but I'm trying to figure out a DC setup for some of our smaller sites, and hopefully a solar setup as well. I'm new to all of this though so I'm trying to see if anyone has any written guides or part lists. Basic goal is to power an airfiber or