Here's what I would recommend:
120W 24V power supply - 43.65 http://www.trcelectronics.com/Meanwell/dr-120-24.shtml 24V UPS Module - 44.46 http://www.trcelectronics.com/Meanwell/dr-ups40.shtml 24V DC/AC Inverter - 169.86 http://www.trcelectronics.com/Meanwell/ts-200-124a.shtml 257.97 plus shipping. Plus throw in 2 - 18Ah or 35Ah SLA's and you got a nice setup. Chris This is of course an AC/DC/AC setup. Throw in a couple of Packet Flux POE switches and a site monitor and you could get rid of the inverter. From: [email protected] [mailto:[email protected]] On Behalf Of Patrick D. Nix, Jr Sent: Tuesday, September 20, 2011 3:16 PM To: WISPA General List Subject: Re: [WISPA] Power for tower sites I thought like +/- $200.00 From: [email protected] [mailto:[email protected]] On Behalf Of Greg Ihnen Sent: Tuesday, September 20, 2011 2:40 PM To: WISPA General List Subject: Re: [WISPA] Power for tower sites How much do you want to spend? Greg On Sep 20, 2011, at 2:17 PM, Patrick D. Nix, Jr wrote: What's a good model to look for? They seem kind of pricey. From: [email protected] [mailto:[email protected]] On Behalf Of Greg Ihnen Sent: Tuesday, September 20, 2011 12:11 PM To: WISPA General List Subject: Re: [WISPA] Power for tower sites I was going to mention Xantrex as a contender. They used to be Trace Engineering. They make a decent inverter. Tripp Lite makes some special high quality high reliability inverters for things like ambulances if you need something a cut above. The cream of the crop is the Outback. Greg On Sep 20, 2011, at 12:36 PM, Dorn Hetzel wrote: I have had good luck with some of my servers using a xantrex inverter/charger and a pile of wal-mart car batteries. It's not pretty but I have had no power drops in a couple of years. Since the unit is designed for RVs etc, it will keep the 12v pile charged even in the face of 12v drain, so you can drive both 120vac and 12vdc loads off the same setup. It will charge the batteries when they need it and ac is available, and float them after they are charged, and use the batteries to provide ac if the mains ac disappears. You decide how big a pile of batteries to attach... On Tue, Sep 20, 2011 at 12:59 PM, Patrick D. Nix, Jr <[email protected]> wrote: Whatever works best for reasonable $ :-) it's been a nightmare so far. Starting to upset customers. Sent from my iPhone On Sep 20, 2011, at 11:55 AM, "Chris Hudson" <[email protected]> wrote: Is this just while using the Jack? Via POE, 24V is the way to go.. IMO. Do you want to make a full conversion to DC? Or just replace the typical UPS setup? Chris From: [email protected] [mailto:[email protected]] On Behalf Of Justin Wilson Sent: Tuesday, September 20, 2011 11:52 AM To: WISPA General List Subject: Re: [WISPA] Power for tower sites Careful on powering most Mikrotiks with 24 volt. We have found, and verified with roc-noc and some others, that many of the MT boards will get hot with 24 volts to the DC jack and lockup and other weirdness. Justin -- Justin Wilson <[email protected]> Aol & Yahoo IM: j2sw http://www.mtin.net/blog - xISP News http://www.twitter.com/j2sw - Follow me on Twitter From: "Patrick D. Nix, Jr" <[email protected]> Reply-To: WISPA General List <[email protected]> Date: Tue, 20 Sep 2011 11:45:49 -0500 To: WISPA General List <[email protected]> Subject: [WISPA] Power for tower sites Currently we are having some horrible issues with power at our tower sites. Our current configuration is that we have tripplite smart 500VA rackmout UPS connected to deep cycle marine battery. This seems to work OK for a month or so and then kills either the battery or the UPS or both. We then notice that the equipment at the tower will power off (battery shuts down for about 10 min) and then powers back on. This happens almost daily and in some cases multiple times in a day. I think it may have to do with the output volts of the battery not being high enough for the UPS to operate. We are desperately looking for other alternatives to what we are doing to resolve this issue. Most equipment will operate at 12/24 volt. 1x Mikrotik, 2x Trango AP, 2x Trango Link45, 4x UBNT Rocket. Any suggestions are appreciated. Pat Csweb.net <http://Csweb.net/> ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ _____ No virus found in this message. 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