What is this bus?

On 5/28/2017 8:12 PM, Mike Stein via cctalk wrote: So no info on the brown box with the open frame supply? I don't see how that assembly was done, since there does not appear to be room between the back panel (power) and the power supply to place the board. or if it is a perspective issue with the photo, the boards that would fit in there would be 6" x 4" in size, I'd guess. Appears to be heavier traces down one side, for power, I'm guessing. The Pascal Microengine had a black and brushed aluminum package, so isn't consistent with this being a backplane for that. But there were a number of those sold around w/o enclosures. Most of the options for the Microengine came out on connectors on the back of the box, IIRC. Thanks Jim