That’s probably the way to go. My calculations come out to max 4.6A so it will probably work.
And I site monitor setup to monitor it? From: AF <af-boun...@af.afmug.com> On Behalf Of Mathew Howard Sent: Wednesday, June 19, 2019 7:43 AM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] UPS and DC to DC conversion If you wanted to do it cheap, you could do it this way: Meanwell NDR-240-24 ~ $50 Meanwell DR-UPS40 ~$40 Meanwell DDR-240B-48 ~$80 2x 12v AGM batteries connected in series to the DR-UPS-40 But that's all only 240 watts (5 amps), if you really need 6A, you'd need to jump to a larger power supply, and use two of the DDR-240B-48's in parallel (they're designed to be used that way). On Wed, Jun 19, 2019 at 8:35 AM Mathew Howard <mhoward...@gmail.com<mailto:mhoward...@gmail.com>> wrote: Yeah, I would want to run the batteries at at least 24v (which is simple enough if you're using two 12v batteries anyway). Lots of different ways to do this... the simplest way would probably be Traco TSP-BCM48 paired with whatever 48v DIN rail power supply (there are several different options that would work from Traco or Meanwell), and connect it to a SiteMonitor Base for monitoring. On Wed, Jun 19, 2019 at 8:26 AM Bill Prince <part15...@gmail.com<mailto:part15...@gmail.com>> wrote: You need 5 amps at 50 volts from a 12V supply? That's 250 watts. Asking for a 12V/20amp supply is asking a lot. bp <part15sbs{at}gmail{dot}com> On 6/18/2019 10:19 PM, Sterling Jacobson wrote: Having a hard time figuring out the exact part/price for something like this. Which Meanwell part would take 48v and make it 50v or 54v 5A? From: AF <af-boun...@af.afmug.com><mailto:af-boun...@af.afmug.com> On Behalf Of Adam Moffett Sent: Tuesday, June 18, 2019 10:21 PM To: af@af.afmug.com<mailto:af@af.afmug.com> Subject: Re: [AFMUG] UPS and DC to DC conversion That's weird to me. Any telecom equipment made for 48v I would have assumed they intended it to be used with a rectifier, and consequently I would assume it'd be ok up to at least 56v continuous; and maybe more like 60-70v for a short duration. But yeah, DC-DC converter is the fix. On 6/18/2019 11:36 PM, Sean Heskett wrote: You need to use a DC-DC converter for sensitive equipment like that. Meanwell has a good selection. On Tue, Jun 18, 2019 at 8:12 PM Sterling Jacobson <sterl...@avative.net<mailto:sterl...@avative.net>> wrote: Apparently the UBNT EP-S16 freaks out if it goes above 54v. Is there any way to assure it doesn’t float/charge above 54v, or maybe even just 50v? From: AF <af-boun...@af.afmug.com<mailto:af-boun...@af.afmug.com>> On Behalf Of TJ Trout Sent: Tuesday, June 18, 2019 7:26 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com<mailto:af@af.afmug.com>> Subject: Re: [AFMUG] UPS and DC to DC conversion contact talley or tessco for a price, don't trust what you see on google, it's like 50% less On Tue, Jun 18, 2019 at 6:25 PM TJ Trout <t...@voltbb.com<mailto:t...@voltbb.com>> wrote: all 48v systems for battery power will float at 54v, it's also adjustable via the battery chemistry On Tue, Jun 18, 2019 at 3:33 PM Sterling Jacobson <sterl...@avative.net<mailto:sterl...@avative.net>> wrote: Ok, cool. So can the 7bc2 be adjusted slightly to output 50v instead of just 48v? There will be some loss going 100’ or so, right? From: AF <af-boun...@af.afmug.com<mailto:af-boun...@af.afmug.com>> On Behalf Of TJ Trout Sent: Tuesday, June 18, 2019 4:23 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com<mailto:af@af.afmug.com>> Subject: Re: [AFMUG] UPS and DC to DC conversion 12-54v is inefficient, if you want 200ah of battery use 4x50ah batteries for a 48v string ICT24048-7BC2 360W 54v AC-DC + LVD + Charger ICT-TMP - Temp sensor for charge compensation if batt's outside ICT-WMB - Wall mount bracket SITE Monitor - Voltage monitoring Or Alternativly; 48v din mount PSU 48v 'dc ups' to charge batt's and provide LVD OR 48v din 'dc ups' with integrated psu + lvd + charger (i.e. DIN-UPS 48-5 cheaper options available) On Tue, Jun 18, 2019 at 2:50 PM Sterling Jacobson <sterl...@avative.net<mailto:sterl...@avative.net>> wrote: I’m trying to put a “box” system together for our house POP sites and need help with the DIN stuff and UPS. Can you guys give me an idea or example of the following? I want to take standard AC 15A in from a breaker outside the box. And using maybe one or two 12v 105AH AGM batteries, supply 50v 6A up the side of the house. I have never ordered DIN parts like this, guess I don’t have to use DIN, but would be nice. Having a problem finding a DC to DC converter that takes 12v and upconverts to 50v 5-6A. Is this the cost effective method? Something like this: Monitoring Sitemonitor Base Unit II SMON Base II 1.00 $100.00 $100.00 UPS Monitor Sitemonitor Int MorningStar MeterBus SMON MorningStar 1.00 $60.00 $60.00 UPS Charge MorningStar Sunsaver Dual 1.00 $165.00 $165.00 Battery AGM Deep Cycle 105AH NPP FT12-105AH 2.00 $225.00 $450.00 DIN Parts like DC fuse/breakers and trunk stuff 1.00 $100.00 $100.00 DC 12v to 50v 5A 1.00 $150.00 $150.00 -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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