DEC QBUS Backplanes
Chris Zach
cz at alembic.crystel.com
Fri Apr 17 19:36:40 CDT 2020
Hm. Plessy backplane?
On 4/17/2020 8:20 PM, Bill Gunshannon via cctalk wrote:
> On 4/17/20 4:41 PM, Glen Slick via cctalk wrote:
>> On Fri, Apr 17, 2020 at 1:37 PM Bill Gunshannon via cctalk
>> <cctalk at classiccmp.org> wrote:
>>>
>>> Definitely not that. Very small. Just big enough for the
>>> slots I mentioned above. Power strip on one edge and berg
>>> pins for control on the other.
>>>
>>
>> I thought you meant 4 rows of Q/CD slots plus 8 rows of Q/Q slots.
>>
>> So it is actually 4 rows of Q/CD slots plus 4 rows of Q/Q slots?
>>
>
>
> Can't send a picture, so lets try this:
>
>
> A B C D
>
> |--------|--------|
> | | |
> | | |
> |--------|--------|
> | | |
> | | |
> |--------|--------|
> | | |
> | | |
> |--------|--------|
> | | |
> | | |
> |--------|--------|--------|-------|
> | | | | |
> | | | | |
> |--------|--------|--------|-------|
> | | | | |
> | | | | |
> |--------|--------|--------|-------|
> | | | | |
> | | | | |
> |--------|--------|--------|-------|
> | | | | |
> | | | | |
> |--------|--------|--------|-------|
>
>
> That's what it looks like.
>
> bill
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