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:[email protected]] On Behalf Of Carl Peterson
Sent: Saturday, January 27, 2018 5:39 PM
To: [email protected]
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 
<[email protected]<mailto:[email protected]>> 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 
<[email protected]<mailto:[email protected]>> wrote:
Used to, now with the IDC model is not needed (isolated dc)…

From: Af <[email protected]<mailto:[email protected]>> on behalf of Josh 
Baird <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Date: Saturday, January 27, 2018 at 1:51 PM
To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
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 
<[email protected]<mailto:[email protected]>> 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 <[email protected]<mailto:[email protected]>> on behalf of Steve 
Jones <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Date: Friday, January 26, 2018 at 9:49 PM
To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
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.


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