Need Info on DEC 11/84 Board, M8190 - test-drb@ccmp.vtda.org

17 Oct 1998

...
 I'm in Ottawa, and on my obligatory trip to the
computer salvage place,
picked up an M8190 Unibus 11/84 card.

It's a 4-finger LSI board, connectors for console and likely a cabinet
kit of some sort. 
Both connectors connect to the same cab kit... though it isn't required.
The console terminal baud rate can be set in the switches on the board,
and the on-board LEDs will display the state which would be displayed
in the cab kit LED display...

...
 I'd like to try this board, my questions are:

1. Any other support boards needed, or will this board run standalone,
presuming available RAM? 
Memory... any qbus memory will do if all you want is to get the machine
up and running.  A 2x5 to DB25 connector for the console terminal.
A console terminal.  A disk interface.  A QBUS system box, or an 11/84
system box (which is qbus in the first part).

...
 2. What kind of backplane is required? I have an 11/45
backplane but this
wouldn't do because of the extensive point-to-point wiring for the CPU
cards, etc.  
Sorry, the board plugs into a QBUS portion of the 11/84 system box.  It
will not plug into a unibus.

...
 3. Any way to run this is the "straight
through" section of the Unibus 
that exists in the high slot numbers of older Unibus' like the 11/45? 
Nope...

...
 4. Is anybody else using this card successfully?

In qbus machines - yes... several of my systems are 11/83s (KDJ11-B
at 18mhz, with PMI memory).  I've even modified one to be running
at 20mhz (mentioned in another message) -- I call it an 11/83plus.

					Megan Gentry
					Former RT-11 Developer

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