[rescue] Re: Re: Re: OSM-2000/RSM214

[Joshua D Boyd]

On Thu, Apr 18, 2002 at 10:20:19PM -0500, Jonathan C. Patschke wrote:
> On Thu, 18 Apr 2002, Robert Novak wrote:
> 
> > Thanks for the reminder and the input on this. First one is up and
> > running. Hmmm, wonder if it's insane to run a diff-to-se converter on this
> > (so it goes SE to HVD to SE). :-)
> 
> I couldn't get it to work.  There's enough delay to cause signal skew.  I
> could get to the rightmost four devices in the shelf fairly reliably, but
> accessing the leftmost three would -always- cause a bus reset.  It may
> have been that I didn't have a swift-enough bus converter.
> 
> However, just for giggles, pull the interface card out of there.  Why,
> look at that.  It's a Unisys SE<->DIFF bus converter.  Isn't that special.
> I'd -love- to get the pinouts of that PGA connector on the backplane. That
> way, I could run SE all the way to the port, making the device much more
> useful to me.  The latency incurred by that converter, BTW, is part of the
> reason for that big "do not use on an UltraFast & Wide bus" label on the
> back.

So, does this mean that I shouldn't buy the UltraWideDiff sbus card I see 
at a great price, and instead pay the same amount of money for a 
FastWideDiff card?  Sigh.  This shelf had better perform really well because
it is certainly going to cost me enough to get it going.

-- 
Joshua D. Boyd