With all that gear on the picture, wouldn’t it be more easier and economic to use something like this? :
http://www.algcom.com.br/2016/products/details/fontes-e-conversores/dc-ups-48v-10a-fn-snmp-fn-4800-10-snmp with this: http://www.algcom.com.br/2016/products/details/fontes-e-conversores/isolated-dcdc-converter-48v-to-12v10a-fc-4812-10-st Gino Villarini Founder/President @gvillarini t: 787.273.4143 Ext. 204 [https://mcusercontent.com/491678685aaddc31e08616413/images/968060a2-d5a8-4a76-b3b3-cee8c588e646.png]<http://www.aeronetpr.com/> [https://image.ibb.co/noQeyp/inc500.png] <https://www.inc.com/profile/aeronet> [https://image.ibb.co/e4pBB9/fb-logo.png] <https://www.facebook.com/aeronetpr/> [https://image.ibb.co/nxuuW9/insta-logo.png] <https://www.instagram.com/aeronetpr/?hl=en> [https://image.ibb.co/jhSEW9/in-logo.png] <https://www.linkedin.com/company/aeronet-broadband-corp> [https://image.ibb.co/dqqq4U/tw-logo.png] <https://twitter.com/AeroNetPR?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor> [https://image.ibb.co/bAJcjU/yt-logo.png] <https://www.youtube.com/channel/UCr2Q9WBrAYVm3Fn970Jd6VA> www.aeronetpr.com<http://www.aeronetpr.com> | Metro Office Park #18 Suite 304 Guaynabo, PR 00968 From: AF <af-boun...@af.afmug.com> on behalf of Ryan McAfee <r...@n5qz.org> Date: Monday, June 28, 2021 at 9:49 PM To: af@af.afmug.com <af@af.afmug.com> Subject: Re: [AFMUG] AF Digest, Vol 37, Issue 147 I've been using 4U blanking panels from monoprice for this. I'd gotten a pull-out shelf to test with mounting more horizontally, but haven't actually tried one yet. Most of those shelves need 4 post racks. This one needs some cable management, badly. Ryan On Mon, Jun 28, 2021 at 5:01 PM <af-requ...@af.afmug.com<mailto:af-requ...@af.afmug.com>> wrote: Message: 3 Date: Mon, 28 Jun 2021 17:00:19 -0500 From: Nate Burke <n...@blastcomm.com<mailto:n...@blastcomm.com>> To: AnimalFarm Microwave Users Group <af@af.afmug.com<mailto:af@af.afmug.com>> Subject: Re: [AFMUG] AF Digest, Vol 37, Issue 146 Message-ID: <60da4673.3050...@blastcomm.com<mailto:60da4673.3050...@blastcomm.com>> Content-Type: text/plain; charset="windows-1252"; Format="flowed" Do you have any pictures of it installed? I'm curious how you mount that in the rack or equipment box. On 6/28/2021 4:39 PM, Ryan McAfee wrote: > Depending on mounting, I really like the BlueSea marine fuse blocks. > https://www.bluesea.com/products/5031/ST_Blade_Fuse_Block_-_12_Circuits_with_Negative_Bus<https://www.bluesea.com/products/5031/ST_Blade_Fuse_Block_-_12_Circuits_with_Negative_Bus> > > > On Mon, Jun 28, 2021 at 4:35 PM > <af-requ...@af.afmug.com<mailto:af-requ...@af.afmug.com> > <mailto:af-requ...@af.afmug.com<mailto:af-requ...@af.afmug.com>>> wrote: > > Message: 4 > Date: Mon, 28 Jun 2021 16:33:39 -0500 > From: Nate Burke <n...@blastcomm.com<mailto:n...@blastcomm.com> > <mailto:n...@blastcomm.com<mailto:n...@blastcomm.com>>> > To: AnimalFarm Microwave Users Group > <af@af.afmug.com<mailto:af@af.afmug.com> > <mailto:af@af.afmug.com<mailto:af@af.afmug.com>>> > Subject: Re: [AFMUG] Tower UPS's (again) > Message-ID: > <60da4033.3050...@blastcomm.com<mailto:60da4033.3050...@blastcomm.com> > > <mailto:60da4033.3050...@blastcomm.com<mailto:60da4033.3050...@blastcomm.com>>> > Content-Type: text/plain; charset=windows-1252; format=flowed > > How do you distribute the 48/24v power? A row of fused links? > circuit > breakers? That's always been the part that looks cobbled > together. I > see Windstream rectifier racks with wire nuts, and wire just > hanging out > in the open, and an autozone inverter sitting on a shelf, so > apparently > even the Telco's don't always have good solutions. > > On 6/28/2021 12:35 PM, dmmoff...@gmail.com<mailto:dmmoff...@gmail.com> > <mailto:dmmoff...@gmail.com<mailto:dmmoff...@gmail.com>> wrote: > > You already pointed out the major plus to A/C power: It's > simple. Any joker > > can come along and plug something in. Almost every device has a > 110VAC > > option. > > > > UPS's are looking cheaper because you're getting used/refurb. > You'll come > > out more comparable with a new DC system compared to a new UPS > with similar > > runtime and capacity. > > > > I've never had a UPS as reliable as a rectifier. A handful of > failures out > > of dozens over several years does not actually sound reliable at > all. It's > > obviously tolerable to you in your scenario, but it's not telecom > > reliability. Scale that up to 100's of deployments and you'll > be chasing > > dead UPS's more often than you'll want to. > > > > The good rectifier systems will be -48v because that's the > standard for > > telecom power. If you're in Ubiquiti/Mikrotik land you'll have > to use > > converters to +24V. If you're in Cisco/Juniper/Arista land then > it can all > > be -48v and then you don't need the converters. > > > > I absolutely have been where you are now. If you're on a budget > where what > > you can afford is the used APC XL then maybe you just stick with > that. DC > > plant is better, but you will pay more for it and you'll pay > more for the > > routers and switches designed for it. > > > > These are all statements of opinion, but it's opinion informed > by 22 years > > of playing this game. > > > > -Adam > > > > > > -----Original Message----- > > From: AF <af-boun...@af.afmug.com<mailto:af-boun...@af.afmug.com> > <mailto:af-boun...@af.afmug.com<mailto:af-boun...@af.afmug.com>>> On > Behalf Of Nate Burke > > Sent: Monday, June 28, 2021 12:58 PM > > To: Animal Farm <af@af.afmug.com<mailto:af@af.afmug.com> > <mailto:af@af.afmug.com<mailto:af@af.afmug.com>>> > > Subject: [AFMUG] Tower UPS's (again) > > > > We've been using the APC SmartUPS 750XL as a Tower UPS for > several years. > > Put 2-8 100+AH AGM Batteries on them, and they've been rock > solid for us. I > > can think of only a handful of failures in the dozens deployed > over the last > > several years. I used to source them off ebay for $50-$70 each, > but they're > > becoming more and more scarce. Anybody have a recommendation > for a simple > > UPS that will do all the monitoring that the APC does and accept big > > batteries? > > > > We're a Metro-Rural Area, our power outages are usually measured > in Hours, > > not days. So I'm not as concerned with the inefficiency of > doing the > > DC/AC/DC Conversion for Runtime, just power stability during > > outages/fluctuations. I like the ease of connecting the external > > batteries to the APC, since the XL line has an Anderson plug on > the back for > > them, and has a larger charger than the normal UPS, so recharge > times are > > very quick. > > > > When the boss goes to the WISPA Shows, his head is filled with > all kids of > > ideas, so he want's me to investigate doing everything as a DC > Plant, When I > > price that out, with chargers, voltage converters (24/48), > inverters, fuse > > protection, LVD, Monitoring, etc, it always seems like the price > is a couple > > hundred dollars of parts and it would be cobbled together. > > > > Am I missing something with doing a DC Plant? I see the telco's > at the > > sites using a rackmount rectifier with power supply modules, but > those are a > > several hundred by themselves, and they are only 48V, they don't > have to > > worry about 24v radios. When I build a site now, I drop in 2 > batteries, and > > the APC, and the site is up and running in a couple minutes. A > DIN rail > > with a couple power supplies and the box is done, and has fully > monitored > > power, and I can plug in whatever I want without any equipment > > modifications. > > > > -- > > AF mailing list > > AF@af.afmug.com<mailto:AF@af.afmug.com> > <mailto:AF@af.afmug.com<mailto:AF@af.afmug.com>> > > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com<http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > > > > > > > > > ------------------------------ > > Subject: Digest Footer > > AF mailing list > AF@af.afmug.com<mailto:AF@af.afmug.com> > <mailto:AF@af.afmug.com<mailto:AF@af.afmug.com>> > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com<http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > > > ------------------------------ > > End of AF Digest, Vol 37, Issue 146 > *********************************** > > > -------------- next part -------------- An HTML attachment was scrubbed... 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