[Soekris] Net4801 component identification help

[Bernd Walter]

On Wed, Nov 28, 2007 at 07:27:26AM -0500, Bob Camp wrote:
> Hi
> 
> When used as a fuse a ferrite bead generally does a poor job. They  
> will move quite a bit of current before they explode. I seem to prove  
> that every so often ...

Well - Søren wrote that it is rated for 2,5A, which is a lot of
current and lot more than the Soekris requires.
There must be a lot more current for the bead to blow that much.
I generally think it is a very bad idea to run battery packs without
a fuse in the wiring.
And such a fuse for supplying a Soekris should maybe in the 1-2A range
and not more.
Adding fuses to battery packs is something noone should forget to add.
This is for protecting the cable and not the Soekris, since you can't
have a cable with the required gauge for sustaining a short ending in
a barrelplug, so the cable must be protected.

> Bob
> 
> 
> On Nov 28, 2007, at 1:59 AM, Sean Murphy wrote:
> 
> > Greetings all
> >
> > I have a net4801 that, unfortunately, was running connected to a large
> > battery bank when a short occurred.  This killed the net4801 rather
> > effectively, but from looks alone it seems that one particular
> > component may have sacrificed itself alone to save the rest as
> > (visually) that is the only one showing damage.
> >
> > http://www.gambierrip.ca/~sean/pict/net4801_fried.JPG
> >
> > I am hoping someone can help me identify what part this.  Seen intact
> > here:
> >
> > http://www.gambierrip.ca/~sean/pict/net4801_not-fried.JPG
> >
> > If I can identify that part I will see if I can resurrect this net4801
> > and put it back into use.  Granted this may be a long shot, but it is
> > a whole lot better then tossing it in the trash!
> >
> > Sean Murphy
> > smurphy at mac.com
> >
> > _______________________________________________
> > Soekris-tech mailing list
> > Soekris-tech at lists.soekris.com
> > http://lists.soekris.com/mailman/listinfo/soekris-tech
> >
> 
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-- 
B.Walter                http://www.bwct.de      http://www.fizon.de
bernd at bwct.de           info at bwct.de            support at fizon.de