[hpsdr] [ATLAS] - proposed physical bus/pcb design 03March2006

[Dan Babcock]

Chris and Phil,
 
 The last PC power supply that I purchased came with a 24 pin connector and the obligatory 24 to 20 pin adapter cable.  I didn't check the pinouts for compatibility, but based on my experience adapters are available.
 
 http://www.endpcnoise.com/cgi-bin/e/00444.html
 
 73
 
 Dan N4XWE

"Christopher T. Day" <CTDay at lbl.gov> wrote: ***** High Performance Software Defined Radio Discussion List *****

[Well, that message didn't work very well. Try again.]

Phil,

My attached message gives the Mouser part number I found for the 24-pin
version. I found it by looking for a match to what is specified for the
plug in the ATX V2.2 Motherboard spec 
. Here is the
data sheet for the header on the Mouser site:
. Is this enough
info?

Unfortunately, I think this header is not pin compatible with the 20-pin
version; the latch is in the wrong place and the pin across from #8 is
NC instead of -5VDC as specified for the 20-pin connector in the ATX
v2.1 spec 
. I now have the
picoPSU supply which is not modifiable to 24-pins, so I'd be happy with
the Atlas board as is.


 Chris

-----Original Message-----
From: Philip Covington [mailto:p.covington at gmail.com] 
Sent: Saturday, March 04, 2006 3:22 PM
To: High Performance Software Defined Radio Discussion List
Subject: Re: [hpsdr] [ATLAS] - proposed physical bus/pcb design
03March2006

***** High Performance Software Defined Radio Discussion List *****

Hi Eric,

I could not find a specification or reliable source of information
concerning the pin out of the 24 pin connector mentioned.  Anyone?

73 de Phil C
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The 20-pin header specified in the ATX spec rev 2.1 is in the Mouser
catalog as Part # 538-39-29-9202 @ $2.57.
If I read things correctly, the 24-pin header we want is in the Mouser
catalog as Part # 538-39-28-1243 @ $4.05.

{Note corrected price for the 20-pin version.}


 Chris

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