> > It might be that the PCI bus has timing/latency requirements that prevent > > a remote slot over a long cable? > > How long a cable do you want?
50-100 feet might be enough for most homes and small offices if the source is centrally located. But for larger offices, and even large homes, you could need more. > The pSeries (IBM rs6000) have remote IO drawers that attach via ahigh spee= > d=20 > serial cable. The drawers house anything up to about 10 PCI slots. The cabl= > es=20 > can get pretty long (i.e. in another rack, which means a few metres. I gues= > s=20 > the specs would be online somewhere on IBM's website. probably the cabling = > &=20 > devices manual. Sounds interesting. But also sounds expensive. How much does IBM charge for these remote IO drawers? > I think the trick is that you don't need to extend the PCI bus itself. You= > =20 > actually need a PCI Bridge that happens to have it's two halves at a distan= > ce=20 > from each other. > > Now whether you can chain a PCI bridge off a PCI slot is another matter. I= > =20 > don't know if you can. So I may just be flapping my jaw here... (IRQ's woul= > d=20 > be a limitation wouldn't they?) I think some PCI cards have PCI bridges on them? Such as combo cards with multiple controllers. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
