> >What is the pinout of the MicroVAX 9 pin console port and what is the
> >"correct" jumpering to wire it into a 9 pin serial port on a PC?
> >
> >--Chuck
>
>
> It's in the VMS FAQ. http://eisner.decus.org/vms/faq.htm
>
> The MicroVAX DB9 console connector pinout predates the PC-style DB9 pinout,
> and uses a then-common (older) standard pinout, and uses the following
> EIA-232-standard signals:
>
> 1.Protective Ground
> 2.Transmited Data
> 3.Received Data
> 4.Request To Send (RTS)
> 5.Data Terminal Ready (DTR)
> 6.Data Set Ready (DSR)
> 7.Signal Ground
> 8.Shorted to pin 9 on MicroVAX and VAXstation 2000...
> 9....series systems, otherwise left floating.
> | Zane H. Healy | UNIX Systems Adminstrator |
FYI Chuck, my MV IIs are quite happy using only the transmit, receive
and ground when connected directly to my PCs. This is simply:
MV II PC
2 ----------- 2
3 ----------- 3
7 ----------- 7
Cheers,
--skots
---
Scott G. Akmentins-Taylor InterNet: staylor(a)mrynet.com
MRY Systems staylor(a)mrynet.lv
(Skots Gregorijs Akmentins-Teilors -- just call me "Skots")
----- Labak miris neka sarkans -----
I know that someone (Tony?) has already sent this to the list but for the
life of me I cannot find it anywhere.
What is the pinout of the MicroVAX 9 pin console port and what is the
"correct" jumpering to wire it into a 9 pin serial port on a PC?
--Chuck
I'm currently the victim of severe abuse from the significant other . . .
she's insisted I put my toys away . . .
In the process, I just an hour or so ago had the manual for this controller
series in my hands. Having looked at both the manuals, 510 and 520, I find
mention of neither SASI nor SCSI. The signal definition seems to track SCSI
except for pin 42 which they call TDN, which is a new one on me. The manual
doesn't seem to define this signal. Maybe its TBD??? The board supports
parity, which, IIRC, SASI didn't. It supports both floppy and hard disks of
the 5-1/4" flavor, with MFM on the HD and either FM or MFM on the floppy.
It's late and I'm too pooped to sit down and scan the approximately 25 pages
of manual for you, particularly since the PC with the scanner is in pieces
for transit to the basement. I'll see about getting it scanned in the next
few days, but keep in mind it's a really poor Xerox copy, some lines of text
in several places being completely illegible. The fact that I have these
manuals suggests that DTC was a major competitor in the bridge-controller
market, else I'd have probably ignored them.
For the last couple of weeks I've been kicking the SCSI vs. SASI thing
around with Don Maslin and Allison Parent in the Ampro Little Board context,
and, as Allison clearly pointed out to me, the SCSI drivers Ampro provided
seems to operate a few of the garden-variety SASI controllers just fine.
I'd conclude from my observations in going through AMPRO's code and from
Allison's comments, that the hardware differences are probably irrelevant in
the early-'80's context.
Some controllers have a software reset, but not all, and since you have to
option of doing a hardware reset, I guess that won't be missed.
They didn't have a standard "common command set" back then, so you'll have
to commune with your muse to devise a driver. I have had absolutely no luck
with the various ADAPTEC, OMTI, and XEBEC bridges I have in conjunction with
a PC-based controller.
Other things I've found in the current spelunking expedition:
Tarbell S-100 FDC (1771) manual
XCOMP manual for ST-R bridge controller to HDD
CompuPro Econoram SRAM Board manual (model??? ... 16K of 2147's)
CDC 6000-series Assembler (COMPASS) manuals for SCOPE OS.
Visual 200 Manual
Visual 50 manual
more Intel ISIS-II and IRMX manuals
Pascal-Z v4.0 manual
Dick
-----Original Message-----
From: Ethan Dicks <ethan_dicks(a)yahoo.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 12:32 AM
Subject: DTC 520A - SASI or SCSI?
>
>Going through a box of disk interface cards, I ran across a couple of these
>DTC 520As. Cursory examination shows a 50-pin connector (J4) with two
>termination resistors (220/330), two 20-pin connectors (J2, J3) which are
>presumably analog data for two ST506 drives and two 34-pin connectors (J1
>and J9). I would expect that J1 is the control cable that goes with J2 and
>J3. I suspect that J9 is for floppies. The major chips are two 8255s, one
>8085, one DTC-037, one NEC D765, one FDC-043, one DTC MSA 2827G, an AMD
P8353,
>and an AMD AM9517. There are several chips with the numbers covered by
type-
>written numbers, PALs and ROMs, no doubt.
>
>There are 8 LEDs in a row by the power connector and an 8-position DIP
switch.
>
>>From the date codes, it appears to have been made near the end of 1983.
>
>Can anyone shed any additional light on this device? Knowing what this was
>expecting to hook up to and how to set the DIP switches would be a great
help.
>
>Many thanks,
>
>-ethan
>
>
>
>=====
>Infinet has been sold. The domain is going away in February.
>Please send all replies to
>
> erd(a)iname.com
>__________________________________________________
>Do You Yahoo!?
>Thousands of Stores. Millions of Products. All in one place.
>Yahoo! Shopping: http://shopping.yahoo.com
--- healyzh(a)aracnet.com wrote:
> As for spare RD54's, don't most of us wish!
Those I have.
> It's easier to find ESDI controllers and largish ESDI drives.
Speak for yourself. I'd gladly trade an RD54 for a Qbus ESDI controller. I
have plenty of drives in the 300-700Mb range (scavenged from ancient Sun
systems), but nothing to talk to them for either Qbus _or_ Unibus.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
Hi
I realize this is for older computers but I have a question concerning a
newer computer ... I have a HP Pavilion with win 95 and a "suspend" feature
... the computer is very sensitive to mouse movement, which "wakes the
computer up" ... is there a way to have the Suspend feature be interrupted
only by a keyboard entry, basically turning the mouse movement feature off?
I don't want to abuse the list, but this is really a pain, sometimes I find
myself away for a while inadvertently, and the computer is grinding away ...
also, should an idle computer have massive amounts of drive activity? I have
powertools for AOL and AOL on, and the drive can suddenly spend 5 minutes
grinding away, no apparent reason ... system resources drop into the 30's and
20's which make me wonder about a virus but Dr Solomon came up clean. Thanks
for any info
Ray Cook
SeaMasterZ(a)AOL.COM
PS - Right now I have Microsoft Word,
Netscape AOL and Powertools open, and the
system resources are at 26% ... with
64 MB of SDRAM, is this normal?
Anybody know anything about these? I just picked up six of them for
$25 , with two fuser units and no toner carts, and a "4216 Personal
Pageprinter Technical Reference". Five of the printers have a strange
15-pin D-sub connector that resembles an AUI or PC joystick port, with
a set of DIP switches beside it. The sixth has normal serial/parallel
interface connectors. None of these printers have ever been used; some
are still in the original plastic "bag" wrappings. They date from around
1988.
My question is - whats the strange 15-pin interface, and do I have any
chance of hooking it to a PC or similar machine ? I got these so cheap
because the guy who had them was going to toss them, and I hate to see
stuff get tossed. Hopefully they'll turn into something useful.
Thanks.
Bill
--
Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net
mrbill(a)sunhelp.org / http://www.sunhelp.org
---------------------------------------------------------------------
"Fear leads to anger. Anger leads to hate. Hate leads to using
Windows NT for mission-critical applications."
-- What Yoda *meant* to say
On Saturday, December 11, 1999 8:51 PM, Chris Kennedy [SMTP:chris@mainecoon.com] wrote:
> I'm pleased to report that thanks to the efforts of Marvin,
> three DG Nova fours, two expansion chassis, three disks
> (including two DG SMD drives) and three tape drives were
> saved from heading to scrapsville. Details (and a few photos)
> can be found at http://www.mainecoon.com/rescue.html.
>
> There's also a bit about the Pr1me 2550 I purchased from
> John as well... :-)
>
> best,
> Chris
>
> --
> Chris Kennedy
> chris(a)mainecoon.com
> http://www.mainecoon.com
> PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97
Chris,
I have a complete set of DOCS for the 2550 (most still in the shrink wrap). If you need them, we might be able to strike a deal...
Steve Robertson - <steverob(a)hotoffice.com>
My wife and daughter would like to get me "a software" for my
"retrocomputer" this Christmas. I've a SOL-20 and would be interested
in any of these PTC offerings:
- Software Package #1
- Software Package #2 (aka Basic 5)
- ALS-8
- Trek 80
- Gamepack #1
Obviously best on original cassette with original doc, but copies OK.
If you have any of the above and would sell please contact my wife at
Maria_Moya(a)legis.state.ak.us.
Thanks...
Thanks for your reply, I am incredibly computer illiterate but am taking
steps to remedy that, once finals are over I can focus on the puter more
fully; try to get an understanding components involved. Ill look into the
BIOS settings, I assume that they are user friendly on this machine. If not,
I could always use another doorstop ...
Ray
thanks for your reply, the puter is basically a good one, I feel that it must
have some sort of a virus in it, there 2 AVI files called Mm2048 and Mm256
that are in my history and cookies and cache files, a few other files too,
and cannot be deleted ... now, call me paranoid, but an 8k AVI file that cant
be played is suspicious to me ... especially when Mm is 2000 in Roman-speak
... so this thing may transform itself into a very pricey doorstop soon, I
guess Ill turn the date back to 1995 and hope that there aren't any incoming
time stamps that set the date ... the atomic clock timesetters adjust the
date too, so they are out. Anyway, thanks again, one of these days Ill know
what I am doing with these things.
RC
