DEC QBUS Backplanes

[Chris Zach]

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