21 May
2000
21 May
'00
12:39 p.m.
Quadex Q5000 labeled rack and cpu enclosure
Various tags inside the cabinet mention Quadex or Scientific Micro Systems
or CompuGraphics
About the only thing I can tell you on all of this is that SMS (though I
thought that was SanFrancisco Micro Systems) made PDP-11 clones. I've got
two SMS chassis' with DEC PDP-11/73 dual hieght CPU's and DEC 256KW RAM.
The Disk controller and Serial I/O is all off the Q-Bus on a SMS board.
The backplane looks DECish to me - similar to what
I've seen in a 11/44.
Is it Hex-Height? A Q-Bus Backplane would normally be Quad-Height, or
maybe dual, not Hex. Could be a rather interesting beast.
Here's some of the cards that are in it.
Three M8017 - I know what these are :)
One M8043 - I know what this is too :)
Four boards #20033 - each has a tiny 4 pin connector and a tiny coax type
connector (much smaller than 10b2). Main chip is N8X305N
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
Sheild/bus terminator board - #203763
What appears to be a memory board and has a 40 pin connector on it - #75063
One board has a ton of different size ribbon cables coming off it - label
says "FWD0106"
Plessey Peripheral Systems board with 50-pin berg connector #703755
Small board #20041 with 14 pin berg coming off the side
2 card cpu set - #20038 and #20039, about 5 AM2901CPO chips, and a lot of
N82S191N chips that say things like "instruction decoder"
This sounds all very wierd, especially that 2 card CPU set. I'm wondering
what kind of CPU it even uses!
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
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