We've got a lot of the RB750UP's in use, too.  We power them right off the DC 
plant (27V) into the barrel connector (as opposed to PoE in). If I need more 
ports at a site, I'll use one as the router (powering backhauls) and one just 
as a switch (for APs). We're powering UBNT and Mikrotik gear. They've been 
solid so far.


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On Thu, Jul 7, 2016 at 2:38 PM -0600, "Josh Luthman" 
<[email protected]> wrote:










That's 56v out.  The Mikrotiks are all 24v.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, Jul 7, 2016 at 4:36 PM, Eric Kuhnke <[email protected]> wrote:
Tycon makes lots of 30W rated 802.3at PoE injectors, and here's one that will 
do 70W:

http://tyconsystems.com/index.php/dc-802-3at-gigabit/521-tp-dcdc-4856gd-vhp

On Thu, Jul 7, 2016 at 1:32 PM, Josh Luthman <[email protected]> 
wrote:
You feed it POE?  Where do you get a 2 amp POE?

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, Jul 7, 2016 at 4:29 PM, Mathew Howard <[email protected]> wrote:
We always either have the power supply inside a building or in a small 
enclosure, and just feed the PowerBox with PoE... unless there's some kind of 
an outdoor power supply you can buy, I don't know how else you could do it.

On Thu, Jul 7, 2016 at 2:50 PM, Josh Luthman <[email protected]> 
wrote:
That's awesome!!!  This would be very handy.  How do you seal the power supply 
feeding the Powerbox if it's outdoors?  If I could figure this out I wouldn't 
need any kind of enclosure.
http://routerboard.com/RB750P-PBr2




Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, Jul 7, 2016 at 3:32 PM, Mathew Howard <[email protected]> wrote:
Oh... I thought you were talking about the PowerBox (which is an RB750UP in an 
outdoor case). 

I'm not sure... I would assume it would be the same as if you plug the PoE out 
side of a power injector into something that doesn't support PoE... in my 
experience, they either work fine or something starts smoking :P

Yeah, ether1-poe-in-long-cable would be it, and yes, it only applies on ether1.

On Thu, Jul 7, 2016 at 2:25 PM, Josh Luthman <[email protected]> 
wrote:
They're the same white plastic case as the RB750 if that's what you're 
referring to.  It does have a big fat power supply, though.
What happens if you try forced on to something such as a dumb switch or laptop?
Are you talking about ether1-poe-in-long-cable ?  That would only apply on 
ether1, wouldn't it?

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Thu, Jul 7, 2016 at 3:10 PM, Mathew Howard <[email protected]> wrote:
We have a bunch of them out there, the only issue that I've run into is that 
you need to make sure to enable long poe cable mode (or whatever it's called... 
something like that) if you're powering them with PoE, otherwise they do some 
crazy stuff. I've seen some weird stuff happen trying to use poe-out auto, so I 
always set it to forced on. They're pretty much the same guts as an RB750UP in 
an outdoor case... they've been as reliable as any other MikroTik, in my 
experience. 

On Thu, Jul 7, 2016 at 2:03 PM, Josh Luthman <[email protected]> 
wrote:
Has anyone been using these?  They look just too ideal.
I found that the default config (poe-out auto) works out of the box for Ubnt 
and a dumb switch.  Just checking to see if anyone's found them to fail or 
anything obscure out in the field.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373






















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