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

[Brandon Black]

On 10/16/07, Soren Kristensen <soren at soekris.com> 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.
>

Thanks for the info/confirmation.  I had already begun making the
cable while I was waiting.  Here's a crappy cellphone snapshot of the
cable I made to power the TDM400P via that power connector, in case
anyone else is looking for the same info again:

http://picasaweb.google.com/blblack/Tech/photo#5122043956008579170

-- Brandon