Of of my local resellers (Ottawa Canada == Canadian dollars!) is moving
and clearing out old stock. They can be reached at
ellfin@<NOSPAM>brookecliff.com
72 pin simms. Min lot 100 pieces please.
250 8mb 60 ns
300 4mb 60 ns
300 plus 1 mb (great keychains)
CPU's
250 486 SX-25 (min lot 100)
30 486 DX33 (min lot 30)
10 486 DX2 -66 (min lot 10)
Not sure if anyone here has any use for these.
Make us an offer we can;t understand.
Thanks
Will sell in min lots only no ones or twos please - thanks
Sounds similar to the one I've got; it does have provision for four
data cables, but only two have connectors installed. So what does
this 40 pin host connector connect to?
And what happened to the person who started this thread? Was he
looking for a chip or a board?
mike
--------------Original Message------------
From: "Richard Erlacher" <edick(a)idcomm.com>
Subject: Re: Looking for a WD 1001 55 Disk controller
The WD 1001-55 (the "BIG" version) had four data cable connectors, IIRC. In
fact, it didn't look very different from the 1000-55 at all. Both of those
boards used the 8X300/305 (depending on version) and the WD1100 chipset. I
had the datasheet for that board in my hands less than two hours ago, but
don't now remember where ... <sigh> another senior moment, I guess. The
small versions (1000-05, etc) used the WD1010 chip and a couple of others.
They do seem to be pretty much interchangeable, though. My own WD 1000-55
board had a 50-pin connector rather than a 40-pin host connector. The extra
signals were just ground and power, though. The ones I've kept only have the
40-pin host connector, which makes them all compatible at the interface.
Dick
>> Or even have it so that unused RJ45 wall jacks are wired to a nearby
>> electric outlet. "Oh, you plugged into one of our proprietary power
>> ports...".
Wow, you guys really have that sysadmin attitude down pat.
"Let's make a button called 'Push Me' and make it destroy
their laptop. After all, the Policy Book says 'Don't Push Me.'"
Non-technical users will always put square pegs in square holes.
- John
On Feb 2, 23:54, Jeffrey S. Sharp wrote:
> On Sat, 2 Feb 2002, Tothwolf wrote:
>
> > For some ultra-secure type site, wiring the other two pairs to detect a
> > connection, and or to deliver 48VDC (from a spare telephone switch
> > supply) would deter all but the most determined.
>
> Or even have it so that unused RJ45 wall jacks are wired to a nearby
> electric outlet. "Oh, you plugged into one of our proprietary power
> ports...".
:-) You would have a serious liability problem with that. Damage to
equipment, fire hazard, danger to personnel (including authorised personnel
who have to use patch panels etc), and at least here it would be illegal as
the low-voltage RJ45 sockets, cabling, etc, don't meet insulation and
protection requirements.
> Or use (or invent, if they do not exist) wall jack panels that have a
> lockable metal door.
They do exist, but are expensive, and you need to fix the PC end too.
Anyway, people just leave them unlocked.
--
Pete Peter Turnbull
Network Manager
University of York
On Feb 2, 23:45, Doc wrote:
> On Sun, 3 Feb 2002, Alexander Schreiber wrote:
>
> > How about using DHCP to ground them? As in:
> > - all machines legitimately using the network are known as well as
> > their ethernet addresses,
> > - assign all those legitimate machines an (basically fixed) IP via
> > DHCP,
> > - for all unregistered machines, offer them IP addresses in the
> > 127.0.0.0 range as well as themself as their default router and
other
> > stuff to make their network connection a notwork connection
>
> I kind of like that! No! I *REALLY* like it! Have you tested this?
Yes, it works. But it's not sufficient, in the sense that it only stops
those who use DHCP.
--
Pete Peter Turnbull
Network Manager
University of York
On Feb 2, 22:38, Tothwolf wrote:
> Of course, there is a conceptually simple way to prevent 99.9% of people
> from accessing a lan in this kind of situation. Wire the wall-mounted
RJ45
> jacks to use the normally unused pairs for TX/RX, and use custom made
> patch cables to connect to the computer's NIC. For some ultra-secure type
> site, wiring the other two pairs to detect a connection, and or to
deliver
> 48VDC (from a spare telephone switch supply) would deter all but the most
> determined.
We've actually investigated this :-) I'll merely say that it will work,
but only where the socket on the PC's NIC is physically inaccessible, such
as in the case of our classroom PCs which are mounted in stell cuffs.
Otherwise, of course, the miscreant simply unplugs the PC end of the patch
cable. There are some liability issues too (post a warning notice).
--
Pete Peter Turnbull
Network Manager
University of York
On Feb 2, 19:55, Glen Slick wrote:
> Does anyone have any info on Sony OA-D32W 3.5" floppies? In particular
the
> one I have is a model OA-D32W-11 with a broken head. This was in an HP
> Integral PC. I don't suppose there is much hope of finding a working
> replacement. It has a 26-pin connector. Any chance a standard 34-pin PC
> 3.5" floppy could be wired up to the 26-pin interface and made to work as
a
> replacement?
No, not straight off. I'm looking at the service manual for an OA-D31V
which is an earlier version of that. It's a 600rpm drive, and normal PC
floppies are 300rpm. Apart from that, it would work, so if you could
persuade the PC controler to work at 2x the data rate, it should work. The
pinout for the connector is:
1 /MOTOR ON 2 /DS0
3 GND 4 /DS1
5 GND 6 /DIR IN
7 GND 8 /STEP
9 GND 10 /WR DATA
11 GND 12 /WR GATE
13 GND 14 /HD LOAD
15 GND 16 /SIDE SEL
17 GND 18 /INDEX
19 GND 20 /TRK 0
21 GND 22 /WRT PROT
23 GND 24 /READ DATA
25 GND 26 /READY
--
Pete Peter Turnbull
Network Manager
University of York
On Feb 2, 22:58, jpero(a)sympatico.ca wrote:
> Psst... I noticed something.
>
> > into random ports. We don't allow students to plug in laptops; there's
> > normally no need as we provide a large number of PCs on 24-hour 364-day
> > access.
>
> Except for that day out of 365 days? :-)
That's Christmas Day, when the whole University is closed; there are no
students or staff on campus (except Security).
--
Pete Peter Turnbull
Network Manager
University of York
On Feb 2, 22:39, Dave McGuire wrote:
> On February 3, Pete Turnbull wrote:
> > Even on a switched network. Case in point: a couple of weeks ago,
someone
> > plugged an unauthorised laptop (we assume) into our student network.
We
> > surmise that it was misconfigured, it acted as a DHCP server, and gave
out
> > a lot of spurious DHCP responses. Not pretty.
>
> Eeeeeek. Sounds like someone who needs to have his fingers broken!
Maybe only one finger -- he didn't *mean* to cause any trouble ;-)
--
Pete Peter Turnbull
Network Manager
University of York
The Bondwell laptop is gone :(
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
