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. > > > > > >
