From: cctalk [mailto:cctalk-bounces at classiccmp.org
] On Behalf Of Tony Duell via
Sent: Friday, September 24, 2021 4:12 AM
To: Noel Chiappa; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: DEC KM11 (Was: DEC KL11)
On Thu, Sep 23, 2021 at 6:38 PM Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
Huh? The KM11 doesn't plug into the UNIBUS
(or QBUS); it's a MASSBUS device (a
solid-state storage device, actually), so it plugs into an RH11 or RH70 or
something like that. (I should work with the VAX MASSBUS controller, too.)
So the question 'is it 18 bit compatible' makes no sense.
Were there 2 things called the KM11?
The KM11 that I know is the maintenance unit, composed of a W130 and
W131 plugged together. It goes into a specially-wired connector on
some older PDP11s (e.g. the 11/45), controllers (e.g. RK11C) and
periperals (e.g. RX01).
I have a pair of real DEC ones, and a clone I built to do tests on my
PDP11/45 before I got the DEC ones.
I think that we're all talking about the ML11-A, or at least are intending to ...
although the Subject line has been erroneous from the get-go ...
As Mark said:
EK-0ML11-TD *ML11 Technical Description
EK-0ML11-TM *ML11 Technical Manual
EK-0ML11-UG *ML11 User's Guide