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Re: Electronics at IU



Hi Matt,

    I talked to David Abbott about the cPCI crate you have. He recalls 
ordering both a VME64x and cPCI crates from Tracewell but he does not 
recall shipping it to IU. Is this crate a Tracewell crate? This are used 
for prototyping and provide access to the electronics from the side and 
has a limited number of slots.

    If this is a Tracewell crate, there are several options;

1.   You can contact Tracewell and have them "update" it to VME64x by 
replacing the backplane. You don't need a VXS to use the fADC250.

2.   You can buy the backplane from Tracewell and have it installed at IU.

3.   Send me the crate and we will update per 1 or 2 above.

    The update should cost in the neighborhood of $2k but at least we 
recover some of the cost from purchasing it as cPCI crate. These are my 
suggestions and I don't know if Elke has the money under option 3. I 
will talk to Elke sometime today.

Best regards,
Fernando




Matthew Shepherd wrote:
>
> Hi Elke,
>
> Fernando's idea of using Paul's ADCs was a good one.  With Paul's 
> help, we have located 3 single-channel 8-bit, 250 MHz FADCs that Paul 
> designed and built on PCI cards.  We can plug these into a Linux box 
> and use them for readout of our test stand.  So temporarily our 
> electronics issues are solved.
>
> I should also add that we have a compact PCI crate on loan for JLab 
> that was purchased when IU was planning to design and build the FADC 
> readout for the FCAL on the cPCI platform.  The form factor is the 
> same as VME I believe, so there could be some cost savings in creating 
> an additional test stand since one would only need a backplane and CPU.
>
> -Matt
>
>
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