> > > > I took a look at my 11/40, it has a 9312 in pos 1/2 in the middle of the > 2nd/rear of two backplanes here: > http://vintagecomputer.net/digital/PDP11-40/NPG.JPG > > With this arrangement I can boot into the console monitor installed on the > 9312. > http://vintagecomputer.net/digital/PDP11-40/Console_test.JPG
This means that you not have the terminator in the last slot of the bus, right? Since your bus is so short it won't probably matter. I have now beeped my way through all signals of the AB slots of the 11/05-NC backplane. Slots 2-9 has "Standard Unibus Pin Assignments" No MUD slots anywhere. Then I rechecked the M9301 and M9312 schematics. There are no signals used on those that would conflict with the "Standard Unibus Pin Assignments". I will also check the boards physically to see if there is a difference in signals that are used. Then unless someone tell me "it won't work, I have tried setting a M9301 in a standard unibus slot" I will go ahead and try it. After all this is how my PDP-11/05-S was configured when it arrived. /Mattis > >
