MicroVAX/VAXstation 2000 (was Re: Back from the fleamarket)

From: Ethan Dicks <ethan_dicks_at_yahoo.com>
Date: Tue Jul 3 01:08:06 2001

--- Iggy Drougge <optimus_at_canit.se> wrote:
> Ethan Dicks skrev:
> >...that clip-on piece converts them to RS-432 over DEC-MMJ)
>
> RS-432 really won't do me any good.

Doh! (to quote the new OED) That should read "RS-423" In any case, it
isn't incompatible with RS-232.

> So, is there always an RS-323 console on the DB25?

I'm pretty sure the console is on the DB-9 (uVAX-II pinout, *not* PC-AT). It
is RS-232. The DB-25 is a standard serial connection, but it is not the
console (i.e., not OPA0: within VMS, but I forget if it's TTA0: or TTA1:
or even TXAn:... it's been too long).

> >True. AFAIK, DEC used one type of PSU for all those cases, so the supply
> >for an external RD54 or TK50ZFA could do the trick.
>
> "Those"?

Sorry... the cases that are of the style of the uVAX-2000 - I'm blanking
on the proper DEC designation, or I would have mentioned it.

> >It's a bunch of work... I certainly wouldn't do it if I had another VAX
> that worked.
>
> Well, we have several. One MVAX II/GPX, one MVAX 3100 and one MVAX II whose
> state is unknown for lack of time and interest (we're having enough trouble
> with the DEQNA in our GPX).

I have a DEQNA... haven't gotten my BA123 put back together since I got it.

> And running such a machine without ethernet is no fun, I'm so spoiled
> nowadays. =)

True. What _I'm_ after is a VAX with ethernet, 9-track and a big disk. So
far, I have the 8300 (no tape, no ethernet, but an RA-81 and a 3rd-party
SDI-ESDI box w/2.4 Gb), the uVAX-II (DEQNA, and KDA-50, both uninstalled,
but with a Dilog TU-80-compatible controller), and MicroVAX 2000s (with
RD_series disks and ethernet). Kinda like the time-money-quality equation,
I can manage two of my three goals in the same machine.

Somewhat recently, I did fall into a DEBNT. Gotta find out where to hang
the cab kit (i.e., off of which backplane connector for that slot).
Doesn't get me tape, but it does get me a multi-processor VAX with several
gig of disk.

-ethan



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Received on Tue Jul 03 2001 - 01:08:06 BST

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