hehe..... well now you know why Rectifiers.. (large diodes) have
heatsinks on them....
:)
Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, Fl 33155
Tel: 305 663 5518 x 232
Helpdesk: 305 663 5518 option 2 Email: [email protected]
On 10/15/2012 4:38 PM, Josh Luthman wrote:
I tried that method. Diode got hotter than hell. Burnt right through
the insulation I covered it with (and since it was bent the jacket
came right off).
Josh Luthman
Office: 937-552-2340 <tel:937-552-2340>
Direct: 937-552-2343 <tel:937-552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Mon, Oct 15, 2012 at 4:22 PM, Jeromie Reeves <[email protected]
<mailto:[email protected]>> wrote:
Why not run the NSM5 on 24v? Just add a diode or two to the + side,
the 1v drop on them will protect the NSM from
the charge voltage of the bank. $2 fix
On Mon, Oct 15, 2012 at 10:44 AM, Olufemi Adalemo
<[email protected] <mailto:[email protected]>> wrote:
> It just dawned on me that I may have been barking up the wrong tree
> I only have the one NSM5 to connect, I could hook this up to the
parallel
> segment of my battery bank and get only 12v while the rest of the
> installation that's connected in series gets 24v. Do you think
this will
> work? Don't really have to worry about the NSM5 running down the
battery
> cause load is low and the cable run is under 10m so the voltage
drop from
> 12v will be negligible
>
> So this is how it would be:
> 24v solar panel connected to 24v charge controller with 4 x 12v
batteries
> connected in a 2x2 series/parallel array. cable connected to the
parallel
> segment of battery bank (theoretically giving 12v to the NSM5),
rest of the
> load connected to the charge controller at 24v
>
> What do you think?
>
> - - -
> Olufemi Adalemo
> M: +234-803-5610040 <tel:%2B234-803-5610040>
> M: +234-809-8610040 <tel:%2B234-809-8610040>
> [email protected] <mailto:[email protected]>
>
>
>
>
> On Fri, Oct 12, 2012 at 8:18 PM, Kristian Hoffmann
<[email protected] <mailto:[email protected]>>
> wrote:
>>
>> Ya, it should be +24 on pins 4,5 and -24/comm on 7,8. If it
blew up then
>> there was probably a short somewhere.
>>
>> -Kristian
>>
>>
>> On 10/12/2012 11:11 AM, Olufemi Adalemo wrote:
>>
>> Ah ok, it is possible that the guys didn't get the polarity right
>> I will check though they swear that they did
>>
>>
>> - - -
>> Olufemi Adalemo
>> M: +234-803-5610040 <tel:%2B234-803-5610040>
>> M: +234-809-8610040 <tel:%2B234-809-8610040>
>> [email protected] <mailto:[email protected]>
>>
>>
>>
>>
>> On Fri, Oct 12, 2012 at 7:05 PM, Josh Luthman
>> <[email protected]
<mailto:[email protected]>> wrote:
>>>
>>> What voltage were the batteries spitting out? They charge at
27v but
>>> without a charger put out much closer to 24v until they begin
discharging.
>>> If it fried the radio I would first think that it was
connected wrong, not
>>> that the voltage was too high.
>>>
>>> Josh Luthman
>>> Office: 937-552-2340 <tel:937-552-2340>
>>> Direct: 937-552-2343 <tel:937-552-2343>
>>> 1100 Wayne St
>>> Suite 1337
>>> Troy, OH 45373
>>>
>>>
>>> On Fri, Oct 12, 2012 at 2:02 PM, Olufemi Adalemo
<[email protected] <mailto:[email protected]>>
>>> wrote:
>>>>
>>>> What's your typical config for the NSM5?
>>>> Some of my guys just tried to power one off a 24v battery
bank (no
>>>> charger connected just battery) and it fried good
>>>>
>>>> - - -
>>>> Olufemi Adalemo
>>>> M: +234-803-5610040 <tel:%2B234-803-5610040>
>>>> M: +234-809-8610040 <tel:%2B234-809-8610040>
>>>> [email protected] <mailto:[email protected]>
>>>>
>>>>
>>>>
>>>>
>>>> On Fri, Oct 12, 2012 at 6:56 PM, Kristian Hoffmann
<[email protected] <mailto:[email protected]>>
>>>> wrote:
>>>>>
>>>>> We have MT and Ubnt equipment of all shapes and sizes
running at 27.6V.
>>>>> The only problems we've had are a handful of freak RB411s
that won't power
>>>>> on with >27V. Most of the older ones wouldn't kick into
overvoltage
>>>>> protection until >28V, but we've come across a few odd balls.
>>>>>
>>>>> -Kristian
>>>>>
>>>>>
>>>>> On 10/12/2012 10:44 AM, Josh Luthman wrote:
>>>>>
>>>>> Charger isn't going to spit out 24v for batteries that need
charged,
>>>>> it's usually 27v.
>>>>>
>>>>> I was under the impression they would simply lock up and you
could
>>>>> reboot, or maybe I'm just thinking of MT.
>>>>>
>>>>> Josh Luthman
>>>>> Office: 937-552-2340 <tel:937-552-2340>
>>>>> Direct: 937-552-2343 <tel:937-552-2343>
>>>>> 1100 Wayne St
>>>>> Suite 1337
>>>>> Troy, OH 45373
>>>>>
>>>>>
>>>>> On Fri, Oct 12, 2012 at 10:08 PM, Olufemi Adalemo
<[email protected] <mailto:[email protected]>>
>>>>> wrote:
>>>>>>
>>>>>> Aha, thanks
>>>>>> That explains why I have a dead NSM5 on my desk
>>>>>> I guess the charge controller is not very good at giving
out 24v
>>>>>> regulated power
>>>>>>
>>>>>> - - -
>>>>>> Olufemi Adalemo
>>>>>> M: +234-803-5610040 <tel:%2B234-803-5610040>
>>>>>> M: +234-809-8610040 <tel:%2B234-809-8610040>
>>>>>> [email protected] <mailto:[email protected]>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Oct 12, 2012 at 6:17 PM, Josh Luthman
>>>>>> <[email protected]
<mailto:[email protected]>> wrote:
>>>>>>>
>>>>>>> Yes you will. The batteries will probably be around 27v
which Ubnt
>>>>>>> won't like. You'll need to clean the ~18-27v from the
batteries to 24v.
>>>>>>>
>>>>>>> Josh Luthman
>>>>>>> Office: 937-552-2340 <tel:937-552-2340>
>>>>>>> Direct: 937-552-2343 <tel:937-552-2343>
>>>>>>> 1100 Wayne St
>>>>>>> Suite 1337
>>>>>>> Troy, OH 45373
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Oct 12, 2012 at 1:14 PM, Olufemi Adalemo
<[email protected] <mailto:[email protected]>>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> Need help,
>>>>>>>> I'm looking to deploy a UBNT NSM5 powered by a 24v solar
supply.
>>>>>>>> Does anyone have experience with this? The data sheet
shows that it
>>>>>>>> requires a 24v supply however the POE injector supplied
is 15v, do I need a
>>>>>>>> DC to DC converter?
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>> - - -
>>>>>>>> Olufemi Adalemo
>>>>>>>> M: +234-803-5610040 <tel:%2B234-803-5610040>
>>>>>>>> M: +234-809-8610040 <tel:%2B234-809-8610040>
>>>>>>>> [email protected] <mailto:[email protected]>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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