18 Sep
2002
18 Sep
'02
6:44 a.m.
What I've managed to pick up looks like an NCR Tower 400 series machine.
I managed to find a DA15 pinout for the majority of the serial ports on
the machine in the old classiccmp archive. However, the 'console' port
"B" is a DE9, not a DA15, and definately isn't the same pinout as IBM has
used.
Any help with the pinout would be appreaciated, thanks!
-- Pat
On Tue, 17 Sep 2002, Patrick Finnegan wrote:
On Mon, 16 Sep 2002, Patrick Finnegan wrote:
dimensions) and weighs in excess of 100LBS. It
has a pair of MFM hard
drives (full height 5.25") a streaming tape drive, and a 5.25" floppy
drive mounted in it. Also has 8 RS-232 DA-15 serial ports, a parallel (?)
printer port, and some sort of other, possibly serial, DB-25 port.
It has a 68010 CPU, 4MB of RAM (As far as I can tell), and a multibus
interface that has the floppy/hard drive controller, RS-232 line
controller (with a dedicated 68010), a tape controller, and a controller
for a second bus that has an I/O modules of some sort stuck in it.
There's three more slots, so it's possible that additional Multibus cards
could be placed in it.
Right now (or after I get some sleep), I'm trying to determine the pinout
on the console ports so that I can connect something to the machine and
watch the console messages. I love (*cough* *cough*) the non-standard
DA15F and DE9F RS-232 ports on this thing.
The ST-506 interface drives are Hitachi DK511-5's, 41MB each. A bit
smaller than the 140MB drives I had with my Unisys U5000.
Pictures will come tomorrow, and be available at
http://purdueriots.com/classiccmp/ncr_multibus/
-- Pat