We had a few third party backplanes arranged like this. This allowed
them to put a small MFM hard drive or 8 inch floppy in empty area next
to the 4x2 (2x4?) slots of rack-mount 3U or 4U sized unit. I don't
recall any that were a mix of A-B, C-D. Ours were A-B, A-B.
Jerry
On 4/17/20 8:48 PM, Nigel Johnson via cctalk wrote:
The actual sockets were always labelled with Digital's trademarks, but
they sold them to OEMs to do what they like with them. We OEM'd for
the Components Group, at one time placed a million dollar order of
stuff including boxes of those backplane sockets!
cheers,
Nigel
On 17/04/2020 21:40, Paul Anderson via cctalk wrote:
I remember the VT72 had a non-standard backplane in it, but I don't
remember the details.
Paul
On Fri, Apr 17, 2020 at 8:10 PM Bill Gunshannon via cctalk <
[email protected]> wrote:
On 4/17/20 8:36 PM, Chris Zach via cctalk wrote:
Hm. Plessy backplane?
No name on the phenolic board part but the QBUS sockets are labeled
"Digital Equipment Corporation".
bill
