DEC PDP-11/45 backplane +5 ECO

[Michael Thompson]

>
>
> 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