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Edge Power Voltage

We recently purchased an Edge Power for testing. Bought a dc and an ac power supply. Hooked it up some batteries we had laying around, and we are very impressed. Question I have is we have many small sites that are only running EP-6's. Those only have an input voltage of 24v. What would be the best way to run those of an Edge Power? 

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Re: Edge Power Voltage

Take a look at this DC to DC converter

 

https://www.alliedelec.com/m/d/2d072557fbcf8b79781ba99287910a64.pdf

 

 

 

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Re: Edge Power Voltage


wrote:

We recently purchased an Edge Power for testing. Bought a dc and an ac power supply. Hooked it up some batteries we had laying around, and we are very impressed. Question I have is we have many small sites that are only running EP-6's. Those only have an input voltage of 24v. What would be the best way to run those of an Edge Power? 


Unfortunately there really isn't a simple way to do this.   The EdgePower is designed specifically to power 54VDC devices - the EdgePoint E8 and S16 which take in 54VDC and can then put out both 54 and 24 volts, or the EdgeSwitch 8-150 which can do the same.   But the EdgePoint R6 needs direct 24VDC.   It can be run from 24VDC PoE 4 pair (like what the S16 and E8 can put out on some of their ports) or what some PoE injectors do.   But the EdgePower has no way to reduce the voltage to 24VDC.   To do that you need either a device to regulate the voltage down to 24 or a different power unit completely.

 

We have used both in different circumstances.  Buck converters take DC at a higher voltage and reduce them.   The possible problem there is that if the buck converter fails, it can do so in a way that allows the higher voltage through, which can damage the units being powered.   The other way - a different unit - is what we usually do.   For example the Tycon TC-BC24-300     http://tycononline.com/TP-BC24-300-24V-Smart-Battery-Charger-210W-Regulated_p_130.html   is a unit we use a lot.   You then need to distribute the power to the devices you are using, and that's generally something you either need to spend a lot of money on (complete rack mount PDUs go for over $1K each ) or build.   I build ours - posted a story recently about it   https://community.ubnt.com/t5/EdgeMAX-Stories/24V-Power-Distribution-Unit/cns-p/2223858

 

So unfortunately there's not an easy solution here...

Jim

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Re: Edge Power Voltage

[ Edited ]

what about Mikrotik mUPS, I know, MK is the evil, but mUPS is really interesting, can power one EdgePoint R6 ? I see that have only 1A of power but for small site can be really a good solution ... or I miss something ?

 

[ OK I miss something ... I read some post on MK forum ... now ]

 

this box is passive and have only 700mA power, and the worst think is that when AC power or POE poe is on the POE output is 24V when battery mode enabled you got 12V direct power and I dont think ubnt radio is so happy

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Re: Edge Power Voltage


@maxidea wrote:

what about Mikrotik mUPS, I know, MK is the evil, but mUPS is really interesting, can power one EdgePoint R6 ? I see that have only 1A of power but for small site can be really a good solution ... or I miss something ?

 

[ OK I miss something ... I read some post on MK forum ... now ]

 

this box is passive and have only 700mA power, and the worst think is that when AC power or POE poe is on the POE output is 24V when battery mode enabled you got 12V direct power and I dont think ubnt radio is so happy


PoE out
Depends on power source:

When input 12 - 24 V = 24 V

When input > 24 V = same as input

When powered by battery = 20 V

 

https://i.mt.lv/routerboard/files/mUPS-171025131517.pdf

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It is good practice to use the correct channel size for your deployment, as your only looking for ~130mbs of throughput, it would be a good idea to move down to a 20mhz channel. This will increase your signal, reduce noise, and provide a better experience.
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