Turns out TS Pro 8 has a 120VAC to 48VDC power supply inside...

http://community.ubnt.com/t5/ToughSwitch/ToughSwitch-Pro-Teardown-1/td-p/360656

DC-DC converter to regulate 48V into the switch and problem solved.

Jerry Richardson
airCloud Communications

> On Jan 30, 2015, at 2:43 PM, "Ken Hohhof" <[email protected]> wrote:
> 
> That unit is actually made by Taiwanese company Cotek.  I have one of their 
> ST1000-148 units in service for about 3 years with no problems, probably the 
> same unit with a transfer switch.  I think you’ll find the fan only runs when 
> needed.
>  
> From: Bill Prince
> Sent: Friday, January 30, 2015 4:15 PM
> To: [email protected]
> Subject: Re: [AFMUG] Small 48VDC to 120VAC  inverter
>  
> We have a bunch of samlex chargers.  Never had one fail.  Don't know about 
> their inverters
> 
> bp
> <part15sbs{at}gmail{dot}com>
> 
> On 1/30/2015 2:10 PM, Jerry Richardson wrote:
>> Looks like 240VAC out. Need 110/120VAC
>>  
>> Any experience with samlex?
>>  
>> http://www.samlexamerica.com/products/ProductDetail.aspx?pid=442
>> 
>> Not liking the fan...
>> 
>> A fanless version with about the same power would be ideal.
>>  
>> 
>> 
>> Jerry Richardson
>> airCloud Communications
>> 
>>> On Jan 30, 2015, at 11:13 AM, Erich Kaiser <[email protected]> 
>>> wrote:
>>> 
>>> Iota
>>>  
>>> http://www.iotaengineering.com/power.htm
>>>  
>>>  
>>>  
>>> Erich Kaiser
>>> North Central Tower Consulting
>>> [email protected]
>>> Office: 630-621-4804
>>> Cell: 630-777-9291
>>>  
>>>> On Fri, Jan 30, 2015 at 12:57 PM, Jerry Richardson 
>>>> <[email protected]> wrote:
>>>> Need about 250W
>>>> 
>>>> Recommendations for reliable unit that we can put in a cabinet.
>>>> 
>>>> Thanks in advance!
>>>> 
>>>> Jerry Richardson
>>>> airCloud Communications
> 

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