[widar-wg] CPCC Battleshort Fixture

[Michael Rupen]

I'm sure this has been discussed but just to be sure:

1- I would not be happy "hot wiring" the correlator to avoid the
   safety features so carefully built into the CPCC.  I would far rather
   have the EVLA down for a month, than lose WIDAR.

2- Kevin tells me the CPCC computers are quite cheap (<$1000) but may
   not be available after 10 years.  Would we rather buy a couple more
   spares now or plan on software changes to accommodate new hardware
   if the CPCC(s) die in a decade?  I don't know the answer to that but
   we (meaning someone else probably ;) should think about it.

Cheers,

           Michael

> The discussion of CPCC spares prompted me to bring this up.
>
> Though it is difficult to imagine how we could lose both CPCCs and the spare, the fact of the matter is that, if we do, the EVLA could be off the air for weeks.
>
> A simple 'CPCC bypass' would be RPMIB-cable terminating connectors that are hard-wired to cause the boards to be powered up and the rack fans to be set to high.  With either set of CPCC cables plugged into these terminators, the system would run.
>
> This should be relatively inexpensive to implement (connectors, +5V power supply, panel, Kerry).
>
> Does this sound like something we should do?
>
> Kevin
>
>
>
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