On Thu, 1 Nov 2007 08:34:24 -0700 "Robert Armstrong" wrote: > I should have paid more attention - since it doesn't appear to have > an CPU > control panel in the back, then we can guess that it must be a KDF11A > 11/23 CPU and the four serial ports that you see are a DLV11J. There is also the M8192 KDJ11 / 11/73 CPU. It is a dual with QBus card like the M8186 and intended as a upgrade for the M8186. The M8192 has no console SLU nor ROM. I have such a M8192 in my 11/73, that lives in a BA23... -- tschüß, Jochen Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/