Ethan Dicks skrev:
>--- 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.
Nope. I believe that's a differential interface, isn't it?
>> 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).
OTOH ISTR reading that it's possible to construct an adaptor plug which links
two pins on the DB25 so as to enable it as the console.
>> >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.
All right, those. They're pretty, but haven't showed up on the fleamarket. =)
>> >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.
I wonder if our DEQNA troubles are due to that. There are no walls on our VAX,
which I suppose could overheat the card(s).
>> 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.
We've got the equation graphics, speed, networking. There's graphics on the
GPX and speed and networking on the 3100, but then we've got to use terminals.
>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.
DEBNT?
--
En ligne avec Thor 2.6a.
Received on Tue Jul 03 2001 - 11:18:57 BST