Identification request - QuadexQ5000/SMS/Compugraphics/DEC ??? should I save it? - test-drb@ccmp.vtda.org

21 May 2000

On May 21, 11:34, Jay West wrote:
...
  A friend called me about a cpu cabinet sitting next to
a dumpster. I would
...
  like some background and identification on this system
if anyone knows. 
...
  At first blush I didn't think it would be
interesting, but it looks like an
...
  unibus system; it also had some M8043 and M8017 cards
in it so it must be
 something DECish? 
Well, those are Q-bus...  Why do you think it looks like a Unibus?  Is it
hex wide?

...
  Four boards #20033 - each has a tiny 4 pin connector
and a tiny coax type
 connector (much smaller than 10b2). Main chip is N8X305N 
I've seen N8X305N somewhere recently, but I can't remember what it is :-(
It's a Signetics part, if you want to search for it.

...
  one #70201 which obviously went to external devices -
two 50 pin headers
 which end in same connector 11/23 uses to go to external RD52's 
Might be a Pertec-style tape interface?

...
  Plessey Peripheral Systems board with 50-pin berg
connector  #703755 
That sounds like a Plessey (or General Robotics) RXV21 emulator.  If so, it
connects to one or two 8" drives with industry-standard SA800-type
interface, and it will handle double-sided drives (a la 'RX03') too.
 Sorry, I can't check the number as mine's inaccessible right now.  Any
other distinguishing marks?

-- 

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York