I've adopted a couple of MV3100/M76's in my quest for different VAX
hardware :-)
Having been using Q-bus VAXen for some time these have some mysteries that
I would like to explore.
First boot sequence, I know there is a list of boot errors somewhere, I
remember reading it but it isn't in any of my VAX book marks. I get these two:
? C 0080 0000.4001
? 6 80A1 0000.4001
The next mystery is the SCSI connector on the back. It isn't SCSI-2, what
is it?
I also got an expansion box (big fat SCSI I connector so no connection
there) with an TZ30 in it, can I move that into the M3100 for now? Is that
a supported config?
--Chuck
On Mar 15, 18:35, Tony Duell wrote:
> > Anyone here have any vintage software to run on a PDP-11 as a front end
> > connection server?
Nope, I don't have the software, but one of my 11/23's was originally a TCP
(see below) at Edinburgh University.
> > Waterloo University used a PDP-11/45 back in the '70s in
> > front of their *huge* cluster of some 3-500 DEC minicomputers. I've got
> > heaps of DZ,DL,etc.. from the warehouse so serial ports are not a
problem.
>
> Cambridge Universtiy (UK) did something similar as a frontend to their
> IBM 3084 mainframe.
>
> As I understand it, the system consisted of units called JNT-PADs (which
> were basically Async -> X25 PADs) which took incoming connections from
> terminals and then sent them (as X25 packets) to DUP11s. There were other
> DUP11s handling external connections to/from JANET (UK academic network).
> Some local terminal connections came in on DJ11 lines. These were on the
> Unibus of a number of PDP11s (11/45s, later 11/34s) which communicated
via
> DMC11s and DMR11s. There were a couple of DX11s that linked the PDP's to
> an IBM channel.
Edinburgh Regional Computing Centre (part of Edinburgh University) used to
do something similar. According to the chart I still have (dated 1985),
ERCC had eleven 11/10s, eight 11/23s, three 11/40s, and a few 11/34s and
11/03s connected as Terminal Control Processors (TCPs, basically front end
processors for fixed or dialup terminal lines). I'm not sure what the
interfaces were, but my 11/23 had a pair of DLV11-Js when I got it, and
originally a synchronous line as well (which I think went to a GEC packet
switch). ERCC also had an 11/34 and an 11/40 connected to the central
processors to handle "slow devices", and fourteen CAMTEC PADs, as well as
several VAXen, other PDP-11s running RSX, a few Systimes, a few Pr1mes, a
couple of DEC 10s, an Amdahl 470, a few big ICL 2900 mainframes, a few
GECs, and at least one Data General machine.
Altogether, Ednet supported 33 local host systems, 100 synchronous and 1521
async connections.
Leeds University also did something similar, up to about 1992. They had
three 11/34s with (AFAIR) 32 serial lines each (mostly Emulex devices)
feeding a pair of DX11s into a big Amdahl. The 11/34s ran some homegrown
software, booted from an RX02. There was also a couple of 11/73s, one of
which was in a proprietary unit that incorporated a DX11-alike on two (or
maybe three) Q-bus boards. That one also had some wierd CAMTEC ethernet
interface in it. I've got one of the 11/34s, and one of the 11/73s; one of
my friends has one of the DX11s.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
As all most of us "Old-timers" know, when you read a prompt that reads "To
continue, press any key", pressing any key on the keyboard will take you to
whatever is next. I read recently that on a few Compaq keyboards there
actually was a key labelled the "Any" key! Now *that's* what I call
idiot-proofing! (iSore, eat your processor out!)
____________________________________________________________
David Vohs, Digital Archaeologist & Computer Historian.
Computer Collection:
"Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, Okimate 20.
"Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II.
"Delorean": TI-99/4A.
"Monolith": Apple Macintosh Portable.
"Spectrum": Tandy Color Computer 3.
____________________________________________________________
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Get Your Private, Free Email at http://www.hotmail.com
>Just got in a couple of RF35s off of eBay for use
>in my MV3800 project. What has me intrigued is
>that they are labeled "RF35 / RZ35".
>
>I thought RZ was a SCSI designation. My DEC docs
>are dated, anybody can shed light on this ?
I have a number of these as well.. I believe that the HDA can be
used with either an RZ (SCSI) or RF(DSSI) board...
Make sure that you know for sure which board it has on it... both
types will say 'rz35/rf35'...
Easy way to know... the power connector will be 4-pin for SCSI
and 5-pin for DSSI (at least all the ones I have are like that).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
DSL is in and functional, at least at a basic level. I can't -believe- the
speed increase!
With basic router configuration dealt with, I'm going to (over the course
of the next couple of weeks) get the servers and DNS authority taken care
of. I'll post a note when I have my domain entirely under my control.
Honestly, I'm surprised the router configuration was as easy as it was.
Definitely something to be said for Livingston boxes...
Gotta run back to work for a while. See you lot later!
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
My /37 has all five slots filled. The CPU, 2 HP-IB cards, memory, and the
serial card with 6 ports.
When I had the case open, I noticed a bus connector just behind the front
panel. There is a cutout in the chassis above the connector where a ribbon
cable could be passed to another backplane. I guess you could stack another
chassis on top of this one.
Steve Robertson <steverob(a)hotoffice.com>
> -----Original Message-----
> From: Craig Smith [mailto:ip500@roanoke.infi.net]
> Sent: Wednesday, March 15, 2000 1:11 PM
> To: classiccmp(a)classiccmp.org
> Subject: Re: HP 3000/37
>
>
> I'm pretty sure I've got a couple of spare 3000 cardcages [rack mount
> units--6+ ?? cards high] if you need one.
> Craig
>
> Aaron Christopher Finney wrote:
> >
> > On 15 Mar 2000, Frank McConnell wrote:
> >
> > > And adding I/O to the /37 is hard -- there are five
> slots, and between
> > > CPU, memory, ATP/M (serial I/O), and GIC (HP-IB) you're
> already using
> > > at least four. The fifth slot is often occupied by more memory or
> > > something else (e.g. an INP or LANIC). I think there's a
> way to add a
> > > second card cage to a /37 but I'm not sure I've ever seen
> that done.
> >
> > My /37 is actually a Micro3000XE; two 3000 cages wired together
> > (internally at the backplane).
>
--- Peter Pachla <peter.pachla(a)wintermute.org.uk> wrote:
> > A "WinChip 180" - kinda like a P-180 with extra stuff
> >onboard to implement video on the CPU....
I retract my assertion that a WinChip does some kind of integrated video.
Somewhere along the line of <$400 machines, I because misinformed/confused.
There is some form of recognized video chip on the iOpener, but it _does_
use main memory as video RAM.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
permanent home is: http://penguincentral.com/
See http://ohio.voyager.net/ for details.
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--- allisonp(a)world.std.com wrote:
> The chip in that thing is a Pentium180?
A "WinChip 180" - kinda like a P-180 with extra stuff onboard to implement
video on the CPU and use main memory as video memory (kinda like what the
Amiga does, but not exactly). It's its own thing designed to reduce part
count and manufacturing cost.
> Tell me more about this, is the LCD part of it??
Yes. The idea is that you buy their box for cheap and give them $250+
per year in ISP fees, subsidizing the hardware. I'm going to go look
at one at CC at lunch and see if you buy the unit over the counter and
_then_ sign up when you bring the box home. I expect that they charge
$199 at CC and you get $100 off your usage time. Even so, $200 for an
integrated box that is reconfigurable isn't bad. I bought a proprietary
flat-panel 486 with PCMCIA and one ISA slot for about that (16Mb RAM, 500Mb
disk, no floppy but an external floppy connector). This is _much_ more
powereful except for the lack of expandability and the lack of a built-in
network jack. All I need right now is a source of used DE-620 pocket
Ethernet adapters to charge on ahead.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
permanent home is: http://penguincentral.com/
See http://ohio.voyager.net/ for details.
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com
Jim Strickland wrote:
> The serial port on the c64 IS RS232 compatible, but it uses ttl level signals
> instead of the normal ones. The adapters just (if memory serves) raise the
> signal levels to rs232 standards. It only goes up to 2400 baud with the
> existing bios, although the chip goes (I think) to 9600 if you reprogram it.
>
> For this reason plugging the serial printer into any standard RS232 device is
> probably not a good idea.
For the uninitiated, I think I must at this point issue a warning:
THERE ARE TWO SERIAL PORTS ON THE COMMODORE 64.
One is a (can't remember how many. 5+/-1)-pin DIN connector. This is
Commodore's serial version of GPIB, and is where disk drives and things go.
The other is the RS232. I can't remember whether that's a separate connector,
or simply pins on the user port.
I would guess the printer goes in the same port as the disk drive, if it is one
of Commodore's own-badged Epson things. IIRC you daisy chain them - one cable
64 - Disk drive, next cable disk drive - printer, etc.
Philip.
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Steve Robertson <steverob(a)hotoffice.com> wrote:
> Still having trouble configuring the system with a line printer. Not sure if
> the problem is with the printer, the configuration, or me (naw couldn't be).
> When I connect my HPIB printer, the system has trouble finding other devices
> on that chain. That printer was working with my /42 but, it was on a port
> all by itsself. The /37 doesn't have as many I/O ports as the /42 so, my
> options are considerably more limited.
Mixing high- and low-speed devices on the same HP-IB channel is not
recommended.
And adding I/O to the /37 is hard -- there are five slots, and between
CPU, memory, ATP/M (serial I/O), and GIC (HP-IB) you're already using
at least four. The fifth slot is often occupied by more memory or
something else (e.g. an INP or LANIC). I think there's a way to add a
second card cage to a /37 but I'm not sure I've ever seen that done.
So if you really want a printer, you might want to think about a
serial printer plugged into one of the ATP ports. I used to run a
2563A that way in the mid-1980s; 9600 bps did OK at keeping up with
a 300 LPM printer that was used to print COBOL listings.
> Anyway, I finally have a "Classic 3000" that doesn't double as a space
> heater. Both me and my air-conditioner are happy. Many thanks to Joe for
> turning me on to this *great* find.
I'm glad someone got it. Joe told me about it too but I couldn't see
shipping it all the way to California -- already got two /37s and
don't have anywhere to put a 7937-sized disc right now.
-Frank McConnell
