DEC PDP-11/45 backplane +5 ECO

Chris Zach cz at alembic.crystel.com
Tue Apr 27 16:26:00 CDT 2021


Wait, that 11/45 looks to have an MS11-LK memory board in it. I assume 
that's just normal slow Unibus memory, or was it also able to be 
installed on the FASTBUS?

C

On 4/27/2021 12:36 PM, Michael Thompson via cctech wrote:
>>
>>
>> On 4/24/21 10:28 PM, Noel Chiappa via cctalk wrote:
>>>        Noel
>>>
>>> PS: I wonder how many people here have -11/45's? ISTR one other, but
>> they aren't
>>> common.
> 
> 
> The Rhode Island Computer Museum has two. The pair were the interface
> between fire pull boxes and the 911 dispatch system in Brooklyn, NY. Both
> have DV11 & DH11 serial controllers. These are capable of the very low baud
> rates needed to talk to the fire pull boxes.
> 
> https://www.ricomputermuseum.org/collections-gallery/equipment/dec-pdp-11-45
> 
> --
> Michael Thompson
> 


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