[Soekris] +12V power on net5501 + Digium TDM400P

Darrick Hartman (lists) dhartman at djhsolutions.com
Sat Dec 15 19:24:06 UTC 2007


Soren Kristensen wrote:
> Hi Brandon,
> 
> Brandon Black wrote:
>> On 10/16/07, Bob Bishop <rb at gid.co.uk> wrote:
>>
>> So my questions remain, which can basically be boiled down to:
>>
>> 1) Is it ok if I draw 0.8A @ 12V from the 4-pin power connector near
>> the SATA port on the net5501?
> 
> Yes. It's wired as:
> 
> Pin 1  +12V  (closest to SATA connector)
>      2  GND
>      3  GND
>      4  +5V
> 
> It's designed to supply 1A directly from the power input and will 
> disconnect if more than about 14V is connected to the power input.
> 
>> 2) Assuming it is ok, given that I also have a CompactFlash card and a
>> USB flash drive connected to the net5501, is a 3.34A 12V power supply
>> probably sufficient, or do I really need to use the 5A I have here?
> 
> 3.3A is more than plenty.
> 
> 
> And yes, I really need to complete the net5501 manual....

Soren,

Am I correct to assume that if I need to supply more than 1A I would 
need to use an external source?  One application I was hoping to use a 
net5501 would require approx 1.5A (3W per FXS channel x 6 channels using 
a Rhino card similar to the Digium TDM400p).

Any word on the manual or the 19" 1U case?  It would be helpful to at 
least know the planned specs for the 1U case.

Thanks,

Darrick
-- 
Darrick Hartman
DJH Solutions, LLC
http://www.djhsolutions.com


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