We're still putting Ubiquiti 2.4ghz APs on almost all our towers... I think that's pretty much the only thing that I can't run off 48v now.
For a long time, there weren't any decent Mikrotik routers that would take 48v, so that was keeping us on 24v too, but that's not a problem anymore. On Mon, Jan 29, 2018 at 3:45 PM, Josh Baird <joshba...@gmail.com> wrote: > We used to need both 24VDC (for FSK and old MT) and 48VDC at most sites, > but now we only deploy 48VDC at newer sites. If we do need 24V for > whatever reason, we typically use a Netonix switch that can output 24V via > PoE. > > What are you using on new sites that requires 24V? > > On Mon, Jan 29, 2018 at 4:40 PM, Mathew Howard <mhoward...@gmail.com> > wrote: > >> Yeah, the lack of a 48v version of the DR-UPS was one of the problems I >> ran into too... my fix was to use a 24v to 48v DC converter. Pretty much >> every site ends up needing both 48v and 24v anyway, so unless you do a >> complete DC plant for each voltage, you're going to end up needing some >> kind of a converter one way or the other anyhow, and that way you can do >> two batteries instead of four. Only problem being I haven't found a nice >> DIN rail 24v-48v converter (the meanwell one does the job fine, it's just >> not a proper DIN mount device). >> >> So the way I'm leaning for new sites is to do a nice big Meanwell DIN >> mount 24v power supply, with a DR-UPS and and a 24v to 48v DC converter, >> connected to two PacketFlux PDUs (one for 48v and one for 24v). That gives >> me five remotely controllable power outputs for each voltage that I can use >> to power whatever routers, switches, PoE injectors, or whatever I need. And >> there are contacts on those power supplies that can be connected to the >> Packetflux Base for monitoring purposes. >> >> Might be able to do things a bit more cleanly with a Rackinjector too... >> I haven't had time to play with that much yet though. >> >> On Mon, Jan 29, 2018 at 9:32 AM, Josh Baird <joshba...@gmail.com> wrote: >> >>> Yeah - the lack of a 48VDC UPS from Meanwell is annoying. For small-ish >>> sites, we have been running a Meanwell/Traco hybrid using the SDR-240-48 >>> and a Traco TSP-BCM48A or BCMU360. >>> >>> On Mon, Jan 29, 2018 at 10:29 AM, Adam Moffett <dmmoff...@gmail.com> >>> wrote: >>> >>>> There's a lot to like about that setup. The DR-UPS can do 40amp on >>>> 24v, so your upper limit is almost 1kW. Just drive it with a bigger 24v >>>> supply as needed. >>>> >>>> What has held me back from that in the past is the DR-UPS is not >>>> available in 48v, and the biggest power consumers I have are 48V. I went >>>> to Traco to stay 48V. OTOH your rig is so much cheaper than Traco that >>>> adding an RSD-300B-48 for another $100 is not a bad deal. >>>> >>>> >>>> ------ Original Message ------ >>>> From: "David Coudron" <david.coud...@advantenon.com> >>>> To: "af@afmug.com" <af@afmug.com> >>>> Sent: 1/28/2018 10:39:56 PM >>>> Subject: Re: [AFMUG] Dc plant conversion >>>> >>>> Here is what we are doing, I think this is close to what Steve is >>>> asking for: >>>> >>>> >>>> >>>> Meanwell SDR-240-24 AC to DC power source: $84 >>>> >>>> Meanwell DR-UPS40 Battery Float/UPS: $37 >>>> >>>> Tycon TPDIN MonitorWeb2: $131 >>>> >>>> 24 V of battery backup $70-120 depending on the runtime looking for >>>> >>>> Netonix 150 W or 250 DC switch: $250-350 (This is really the only >>>> expensive component) >>>> >>>> Heater: $65 >>>> >>>> Fan: $14 >>>> >>>> >>>> >>>> With this, we can run 5-8 hours on very small batteries, we figure we >>>> have several hours to get a generator to the site if power isn’t coming >>>> back. We run all POE from the Netonix, it works really well. Here are >>>> the other things we can do with the box: >>>> >>>> 1. Monitor temp in the cabinet >>>> 2. Monitor/alert on loss of AC line power through TP DIN >>>> 3. Monitor voltage of the batteries >>>> 4. Monitor voltage to the Netonix >>>> 5. Monitor Current to the Netonix >>>> 6. Monitor Current in/out of the batteries >>>> 7. Auto start the heater below 40 degrees >>>> 8. Auto start the fan above 80 degrees >>>> 9. Power cycle the netonix from the TP DIN >>>> 10. Power cycle any AP, Router, Backhaul from the Netonix >>>> >>>> >>>> >>>> We also put a Mikrotik router in this cabinet. Usually a Hex POE (for >>>> small sites) or a 3011 for larger sites. >>>> >>>> >>>> >>>> We have 13 in the field set up like this and are going 15 more right >>>> now. While it might be a little more than what you were thinking, it >>>> gives us a ton of control for pretty minimal investment per site. >>>> >>>> >>>> >>>> Best part is, no coding necessary. Doing all this with the Monitor >>>> Web2 settings and/or SNMP. Let me know if you are interested in >>>> pictures. For this second batch we have started using Terminal blocks to >>>> clean up the wiring, the cabinets look a little better, but we went to a >>>> smaller poly cabinet that makes things a little tight. >>>> >>>> >>>> >>>> Regards, >>>> >>>> >>>> >>>> David Coudron >>>> >>>> >>>> >>>> *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Carl Peterson >>>> *Sent:* Saturday, January 27, 2018 5:39 PM >>>> *To:* af@afmug.com >>>> *Subject:* Re: [AFMUG] Dc plant conversion >>>> >>>> >>>> >>>> You can still do DC-DC off it and then hook up netonix. If I had to do >>>> it now I'd go with the IDC switch. When we did our design, the idc didn't >>>> exist so we just went down to 24V off of our A and B sides and run a >>>> redundant powered 24V bus which all the netonix switches run on. >>>> >>>> >>>> >>>> I better buy up another batch of Elteks before all y'all buy them all >>>> up. These are mostly decommissioned Sprint/Clearwire btw. >>>> >>>> >>>> On Jan 27, 2018, at 1:02 PM, Josh Baird <joshba...@gmail.com> wrote: >>>> >>>> A 12 port version would be nice. Looks like the 26 port version is >>>> $600. >>>> >>>> >>>> >>>> On Sat, Jan 27, 2018 at 12:59 PM, Gino A. Villarini <g...@aeronetpr.com> >>>> wrote: >>>> >>>> Used to, now with the IDC model is not needed (isolated dc)… >>>> >>>> >>>> >>>> *From: *Af <af-boun...@afmug.com> on behalf of Josh Baird < >>>> joshba...@gmail.com> >>>> *Reply-To: *"af@afmug.com" <af@afmug.com> >>>> *Date: *Saturday, January 27, 2018 at 1:51 PM >>>> *To: *"af@afmug.com" <af@afmug.com> >>>> *Subject: *Re: [AFMUG] Dc plant conversion >>>> >>>> >>>> >>>> Which Netonix are you running at - 48V? Or are you using an isolated >>>> DC/DC converter in between the -48V rectifier and Netonix? >>>> >>>> >>>> >>>> On Sat, Jan 27, 2018 at 12:49 PM, Gino A. Villarini <g...@aeronetpr.com> >>>> wrote: >>>> >>>> Refurb/ used Eltek/Valere –48 Rectifier shelf off Ebay ~$400 + 1 >>>> Netonix IDC Switch $400… all done. You can power 90% of WISP gear >>>> >>>> >>>> >>>> *From: *Af <af-boun...@afmug.com> on behalf of Steve Jones < >>>> thatoneguyst...@gmail.com> >>>> *Reply-To: *"af@afmug.com" <af@afmug.com> >>>> *Date: *Friday, January 26, 2018 at 9:49 PM >>>> *To: *"af@afmug.com" <af@afmug.com> >>>> *Subject: *[AFMUG] Dc plant conversion >>>> >>>> >>>> >>>> Any of you folks who know both dc plant and even more know small wisp >>>> budget interested in looking at our gear and power setup and giving >>>> realistic advice that doesnt have a 10 different 500 dollar components >>>> combined with a full time linux guy and a full time coder? >>>> >>>> >>>> >>>> Id love you to do it out of the kindness of your heart, but i do have >>>> some advisory busget. >>>> >>>> >>>> >>>> Im just tired of the apc ups waste and super ghetto runtimes on >>>> batteries coupled with having to accept we are destroying runtimes by >>>> letting the apcs die..... please, somebody, please. Otherwise i have to go >>>> to the facebook groups, and thats like going to a mikrotik or ubnt forum. >>>> >>>> >>>> >>>> >>>> >>>> >>> >> >
