- test-drb@ccmp.vtda.org - classiccmp.org

14 slot chassis needed for an isa/pci backplane

by rmeenaks＠olf.com

Hi, I just got a dual 200MHz pentium pro with 128Megs single board computer + 14-slot PCI/ISA passive backplane. The backplane is about the size of an average ATX motherboard, so it can fit in an ATX chassis, but then I cant use all the slots. Does anyone know where I can get a 14-slot chassis really cheap?? Ram PS: if you are asking how the hell I can going to use 14 isa/pci slots on a computer, blame it on my transputer cards :-)

25 years, 3 months

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Age-old ethernet equipment

by optimus＠canit.se

This weekend, along with a batch of PS/2s, I received a 3Com 3c588 1988 vintage MultiConnect Repeater. It's a 19" case with space for sixteen cards. Mine features one card indicating power with a green LED as well as a DB-9 female connector, then fourteen cards equipped with a BNC connector, an activity led, one partition LED and a partition/reset switch each. Whenever a card is connected to a 10b2 network, the partition light (which otherwise emits a steady red light) begins to flicker. Upon flicking the switch into reset mode, the partition light goes out. The network works fine as long as there is no partitioning. I suppose its purpose is to not leak traffic between several networks. But there still are some things I'd like to find out. What is the purpose of the DB-9 connector? Could this repeater slow a network down? What does partitioning actually entail? Does anyone have any other cards for this beast? I know there are 10bT cards as well. -- En ligne avec Thor 2.6a. Ecco a voi la sigla di Lupin III in francese... ma... aspettate... qualcosa non quadra...cos'e' questa roba! Holly e Benji? ahahah... povero cantante... gli hanno messo sotto la base sbagliata!!! Tacchan undrar varf?r Captain Tsubasa p? franska har samma ackompanjemang som Lupin III p? italienska

25 years, 3 months

1
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AAUI

by jhellige＠earthlink.net

>Hmmm... Again, there's the dangerous telephone wires, plug that in >place of properly wired apple wire for keyboard. POW! Goes the >keyboard microcontroller. That's another fatal design thanks to >apple for using telephone jacks instead of some kind of connectors. They weren't the only manufacturer to use that type of connector for the keyboard though. I'm not saying it was a good design, but it was a connector that was small and readily available. The Atari ST, Amiga 1000, Coleco Adam, and I believe the IBM 5155, as well as plenty of serial terminals, used the same type of connector for the keyboard. My main complaint about that connector is that it is so frail. Not everyone enjoys cutting off the broken connector and wiring a new one back on! <g> Jeff

25 years, 3 months

6
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i286-Mainboard

by SUPRDAVE＠aol.com

If the BIOS type can be identified, that will be a great help in knowing to how access the configuration utility; AMI is pressing delete during memory count, award is control+alt+F10, and so forth. In a message dated 3/26/01 3:07:18 PM Central Standard Time, edick(a)idcomm.com writes: << I hope you've tried the obvious, e.g. <F1> or <DEL> during the POST sequence to enter BIOS setup? The earliest PC/AT's used a setup diskette to do the setup of the CMOS-based parameters. That may prove to be a problem. To start out, I'd leave the "turbo" switch alone. However, there's usually a Turbo indicator LED that will tell you when you're in TURBO mode. If there's no TURBO button, there's probably a jumper connection available somewhere, and these connections are normally located in the lower left region of the board (assuming the power and keyboard connections are at the upper right, for reference. When you say "not available" do you mean you don't have one, or that it's not present/supported on the motherboard? I'm curious about one thing ... Why is it that you believe it to be operable at 12 MHz? Is the CPU marked as such? Can you tell anything about the support chip set? I vaguely remember something about a Morse '286 around here someplace. It's possible that there's a manual, but more likely it's a board that was hying about. I may not have it anymore, but you never know ... Dick ----- Original Message ----- From: "Mario Premke" <mapr0003(a)stud.uni-sb.de> To: <classiccmp(a)classiccmp.org> Sent: Monday, March 26, 2001 1:22 PM Subject: i286-Mainboard > > Hi, I have a 'Morse Technologies KP 286HF' mainboard with > an AMD-Processor - the board works, but I don't have the slightest > idea about the jumper settings ... I put 4 MB in it, but it only > recognizes 640Kb and I assume, that for clocking it to 12Mhz the > (not available) Turbo-Button should be pressed ?!? > For any hints or links to manuals I would be very glad ... > Cheers, > Mario > >>

25 years, 3 months

7
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Heath Zenith Hero Jr - No HTML

by guerney＠bigpond.com

[Sorry about the last post with HTML turned on - I know that some of the most helpful people on this list probably would not even read that post, so I am putting it up again] ==================================== I was amazed to find a local classified ad for a Hero Jr in the Saturday morning paper and soon after I was owner of a very clean Robot for a few dollars (about time I had that sort of luck). Unused for many years but just some cobwebs inside, no corrosion. No charger or remote control or cartridges or documentation unfortunately, but there is lot of technical info on the web I have found today. The old battery will not take a charge using my car [translation - auto] battery "trickle" charger, so I'll have to wait 'till next week to buy a new 12V 3.5A sealed lead/acid battery - that's how this Australian model was powered - not like the 6V batteries described on the web pages for the Hero Jr. And I don't have a 12V PSU to power it up with in the meantime. Am I using an appropriate re-charging device? And could I use the trickle charger itself as the PSU for testing? A multimeter reads about 13V across the terminals when it is powered up, but with my minimal electrical knowledge I do not dare try something that could be fatal to the Hero. None of the Web pages mentioned how much this thing cost new (Feb 85 manufacture date I suspect by a sticker on board inside) and I am curious about that. If anyone has any warnings or "gotcha's" about working with this thing, I'd be glad to hear from you. Other than that, I can't wait - from the info on the web it sounds great fun. And it goes to show, however rare or unusual the item is - eventually one of them turns up here in Brisbane, Australia. Phil

25 years, 3 months

4
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Grid Peripherals

by lgwalker＠look.ca

A friend of mine who knows I highly desired a Grid computer in my collection just dropped off some black peripherals he picked up at a yard sale, to my delight. There's a 3.5 and a 5.25 ext fdd, and an ext CDROM, all with cables, an Extended Duty Battery Pack, and 2 60 Watt Power supplies (used in1200,1307, 1500, and 3403 models it says). The CD cables have 50 pin (3rows) connectors. Was this some sort of SCSI or a common HD connecter for Grid ? What models would these likely work with ? larry Reply to: lgwalker(a)look.ca

25 years, 3 months

1
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ZX-TEAM meeting/TS1000 least expandable???

by Glenatacme＠aol.com

I've just returned from the annual ZX-TEAM meeting in Dietges, Germany, and I must say this 90-member international users group is doing some astounding things. I saw lots of ZX81s with full-sized LCD displays, AT keyboards, hard drives, floppy drives, scanners, modems, and 1 MB memory expansions. Some folks were using ZX81s to control RC devices (such as robots), and CNC machine tools. The TEAM now has a 24-hour dial-up BBS, running on a ZX81. Also demonstrated was a nifty C compiler which runs on Windows-based machines and which produces compiled ZX81 code. All in all it was pretty mind-boggling, and well worth the time and money I spent to attend the meeting. Last year on this list the ZX81/TS1000 was voted "least expandable". Now, I don't mean this to be flame-bait, but can someone please explain to me how the ZX81/TS1000 could, by any stretch of the imagination, win the prize in the "least expandable" category???? Glen 0/0

25 years, 3 months

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[Fwd: NeXT's available]

by mtapley＠swri.edu

Curt, I'm in for a turbo station if possible. >Just a thought, but does anyone on the list have the OS for these >beasties? I just checked and NetBSD isn't quite ready for prime time on >them yet, and neither is Linux unfortunately... >- -Linc Fessenden It may be already on some or all of the stations' hard drives, Curt will have to tell us when he gets them set up. I have a CD of NextStep 3.3 Prerelease 1 (seems functionally identical to NS 3.3, YMMV but it's what I'm using on my Cube) and one of NS 3.3 Developer. I also have patch 2 on CD (for User/Dev) (patch 1 is included in patch 2) and User patch 3 as a compressed installer file. I also have an image of a floppy which can be used to kick-start a CD boot, for machines that don't do that automatically (non-turbo stations?). I can make and ship copies of the boot floppy, though my supply of the nice ED floppies is limited. I have a CD burner, but a) have not tried duplicating the CD's b) Don't much want to hear what Apple would think legally about my doing so. Since Apple gave away copies of this software in 1999, I'd expect little difficulty from them if I "restored and upgraded" hard drives to the current NS3.3 User/Dev + patches configuration that the machines want to run. (Calling all Apple lawyers, please let me know if you disagree!) The included hard drives, if they are the base 406Meg configuration, are very tight with everything loaded. If you plan to actively use the system, or to install much of the wonderful freeware on ftp.peak.org (I especially recommend the Lighthouse Apps), you will probably want a bigger drive. What I suggest is: 1) You get the station, try it out, make sure it runs and you like it. 2) You buy and ship me a hard drive (maybe 1-2 Gig? or the original 406 Meg, or an external) that fits in the machine, plus a check for the cost of shipping it back to you. 3) I initialize and build NS3.3 (Pr1) User, NS3.3 Dev, and patches 2 and 3 on your hard drive by plugging it into my Cube temporarily and building from CD's (so you get a clean install) and copy Patch 3 over from my OD and run on your hard drive (so it's tested and patched to patch 3). 4) I repack your hard drive and ship it back to you, ready to boot. 5) You replace the drive in your station with the new one, or if it's external just plug it in and boot from it. If 25 hard drives arrive in the mail the same day, I'll build them on a "time available" basis, so please don't be in too much of a hurry. Notes: 1) Anyone with a full release version of NS 3.3 might be better as a source. 2) Rob Blessin, at http://206.67.57.106, does a similar deal for a living (look on the Black Hardware page and scroll down to Storage) can do it faster, and already has the (2.1 Gig Seagate Barracuda) hard drive ready to go. He's also got OpenStep 4.2, which I don't. Comments or suggestions welcome. I'm in digest mode, so response to list mail will take until I have digested it ;-). - Mark

25 years, 3 months

3
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DELQA/DEQNA kit needed

by oliv555＠arrl.net

Trying to add ethernet to my 11/83 (BA23). Anyone have this cab kit lying about? This would be the mounting plate with cable-to-card. Have enough DEC stuff here, might be able to work a trade. thanks ............. nick oliviero

25 years, 3 months

4
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Original IBM PC memory

by Innfogra＠aol.com

> > Actually, I do have an *original* IBM PC. March 82, 48k motherboard > > (not the later 64k), SINGLE side 160K floppy, Amdek color monitor. > Actually I think the first 5 slot IBM motherboard had 16K soldered on the MB and three rows of sockets for an additional 48K. this made it possible to stuff it with a full 64K of Ram. The second version had 64K chips soldered and sockets to bring it up to 256K. Paxton Paxton

25 years, 3 months

5
4
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Cromemco Z2-D setup?

by amichael＠nortelnetworks.com

Can anyone tell me switch settings for this Cromemco S-100 system? I have what I believe is the CDOS boot diskette but (of course) no setup manuals. The system uses a ZPU Z-80 card, 16FDC floppy controller, and a 64KZ ram card. The 16FDC has one set of (8) switches; the 64KZ has three sets. The previous owner wasn't sure what to do with this box and by the time I rescued it the floppy drives had been connected up backwards and the dip switches on the cards had been moved around. You get the picture... Well, at least he did warn me he'd played with the switches. I also notice that one of the chip sockets (IC60) on the 64KZ has a set of wire shunts in it instead of a chip, connecting pins 1-8 straight through to pins 16-9. Was this standard? In the pictures in the old Cromemco ads it looks like a real chip in that socket. Thanks in advance, Arlen Michaels

25 years, 3 months

1
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SUN networking problems

by pete＠dunnington.u-net.com

On Mar 27, 9:35, Arno Kletzander wrote: > New details on the SUN networking issue became available yesterday > [...] However, both SUNs' transceivers and the cable work as each > SUN can detect the other's presence. The > printer cannot be pinged or sent data to > Peter Turnbull wrote: > >Have you tried pinging the printer by it's IP address instead of > >it's name? Try a broadcast ping? > > As we're not too familiar with the commands, how is a broadcast > ping done? Instead of giving the IP address of a particular machine, give the broadcast address of the local subnet. The broadcast address is the subnet address but with the host part set to all 1's. For example, for the class C network 192.168.5.0, the broadcast address is 192.168.5.255. For the class B network 176.18.0.0, the broadcast address is 176.18.255.255, and for the class A network 10.0.0.0, it's 10.255.255.255. You should get a response from every device on that segment (every device in that broadcast domain, actually) which has an IP address within the subnet range. For example (my test subnet is 144.32.80.0 with subnet mask 255.255.254.0, so the last 9 bits are the host part): # ping -c 2 144.32.81.255 PING 144.32.81.255 (144.32.81.255): 56 data bytes 64 bytes from 144.32.80.11: icmp_seq=0 ttl=255 time=1 ms 64 bytes from 144.32.80.14: icmp_seq=0 DUP! ttl=255 time=1 ms 64 bytes from 144.32.80.99: icmp_seq=0 DUP! ttl=255 time=3 ms 64 bytes from 144.32.80.80: icmp_seq=0 DUP! ttl=60 time=3 ms 64 bytes from 144.32.80.22: icmp_seq=0 DUP! ttl=255 time=4 ms 64 bytes from 144.32.81.96: icmp_seq=0 DUP! ttl=255 time=39 ms 64 bytes from 144.32.80.11: icmp_seq=1 ttl=255 time=1 ms ----144.32.81.255 PING Statistics---- 2 packets transmitted, 2 packets received, +5 duplicates, 0% packet loss round-trip min/avg/max = 1/7/39 ms # You can see it stopped when it got a response to the second 'ping' it sent (because I told it to use -c 2, ie send only two pings). The reason I suggested a broadcast ping is that anything that hears that should respond. The trouble is, no sensible implementation will do that for anything other than a local subnet, and if the printer doesn't have a proper IP address in the same range as the Suns (which it may not if it's trying to RARP or BOOTP) it won't even respond to a broadcast. So, after thinking about it, I'm not sure it will tell you much at the moment. > >Have you checked the printer settings to make sure it's using the > >correct IP address? Is that set from its panel, or by RARP/BOOTP/ > >DHCP? If the latter, it needs a server to boot. > > Tony Duell wrote: > >That printer isn't attempting to get information (IP address, > >software, whatever) from a server, is it? > > > We're trying hard at the moment to find the printer manual. We know we have > it somewhere, but it's buried... Another way to see what's happening, is to use 'snoop' if you have it on one of the Suns (tcpdump for Linux/BSD/etc is similar). You need to be logged in as root, and type "snoop -v" or "snoop -V". That will show you (in some detail; -V gives less detail) all the traffic visisble to the le0 interface. For example: # snoop -V Using device ec0 (promiscuous mode) ________________________________ indy -> (broadcast) ETHER Type=0806 (ARP), size = 42 bytes indy -> (broadcast) ARP C Who is 144.32.80.34, pissaro ? ________________________________ ? -> (multicast) ETHER Type=D709 (Unknown), size = 60 bytes ________________________________ ? -> (multicast) ETHER Type=D709 (Unknown), size = 60 bytes ________________________________ lanmodem -> 144.32.81.255 ETHER Type=0800 (IP), size = 146 bytes lanmodem -> 144.32.81.255 IP D=144.32.81.255 S=144.32.80.99 LEN=132, ID=53598 lanmodem -> 144.32.81.255 UDP D=2071 S=1025 LEN=112 ________________________________ indy -> lanmodem ETHER Type=0800 (IP), size = 86 bytes indy -> lanmodem IP D=144.32.80.99 S=144.32.80.11 LEN=72, ID=56653 indy -> lanmodem UDP D=53 S=2158 LEN=52 indy -> lanmodem DNS C port=2158 ________________________________ indy -> (broadcast) ETHER Type=0806 (ARP), size = 42 bytes indy -> (broadcast) ARP C Who is 144.32.80.34, pissaro ? ________________________________ ? -> (multicast) ETHER Type=D709 (Unknown), size = 60 bytes ________________________________ The first packet is one machine asking who knows the MAC address for a particular IP address; the next two are IPX discovery packets from a smart hub; fourth is a router advertising its connectivity to anyone who cares to listen; fifth is a machine making a DNS lookup request. > >Hmm... What are the LEDs on the transceivers labelled? > > The LEDs on the transceivers are only PWR (Power), SQE (as > on yours) and COL (which must be Collision). Nothing for TX or RX, although > that would be much more helpful for troubleshooting. If both the SQE and Collision LEDs flicker when you try to send something, that's not anything to worry about. If SQE is enabled on a transceiver, it sends a sort of artificial collision burst after each packet (which lights up SQE) and that is detected by every transceiver's collision detect circuit as a normal afterlude to the packet. You only worry when you see collisions without SQE :-) -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 3 months

1
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TU56 DECtape on Q-bus machine possible?

by tony.eros＠machm.org

I apologize in advance for the quite possibly stupid question, but... Is there any way to run a TU56 DECtape drive on a Q-bus system like a PDP-11/73? -- Tony

25 years, 3 months

1
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Mac haul and print server questions

by jhellige＠earthlink.net

>> RJ-45. I have heard of the Apple IIe compatibility card, but where can I >find >> a cable for this connector, which I presume is for attaching an external >drive >> to? > >Actually I think it's one of those multipurpose breakout cables like the DOS >cards had. It provided Apple II Joysticks, disk drive, and I think serial >connections. The DOS cards for the Mac's are actual coprocessor cards. If the IIe compatibility card is anything like the similar cards sold for the PC, it is basically a IIe on a single board. I've never actually had one of the Mac IIe compatibility cards though. I do remember Tandy, among others, listing the DOS IIe emulation cards in their catalogs into the late 80's. Jeff

25 years, 3 months

1
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AAUI

by pete＠dunnington.u-net.com

On Mar 27, 7:23, Cameron Kaiser wrote: > I have a little Allied Telesyn transceiver I'm using on the Solbourne. > Nice gadget, fits in the palm of my thin piano-playing mitts. There's a DIP > on the side for SQE-Enable and four status lights. Works very well. I have several AT 10bse2 and 10baseT transceivers like that, and a few Eagle ones and a D-link one too. Also a little DEC one that's about twice that size (lengthways). Lots of companies made very small "microtransceivers", some of them with several LEDs (my Eagle 10baseT ones have 6). They're quite handy for checking links through patch panels and structured wiring - wire a PP3 (MN1604/6LR6 9V) battery to pins 6 (-ve) and 13 (=ve) and you can test for a link light and even see when there's traffic. The poor man's Cat5 cable tester. > That reminds me, since I'm an AUI novice. I picked up a DB15 straight > through cable at Fry's (it was sold as a joystick extension but it works > fine on the Apple monitors too). I also have an Allied Telesyn hub that > accepts eight 10BT connectors, Thinnet, and one AUI. If I plug the Solbourne > right into the AUI port on the hub, will I need the transceiver anymore? That won't work, I expect. The Solbourne connector is supposed to plug into a transceiver, and so probably is the one on the hub. I bet they're both sockets? If so, I suggest you don't try it, as those connectors provide power to the transceiver, apart from needing a crossover (and the collision detect would go haywire too). -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 3 months

1
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OT: Atari 2600 cartridge archiver

by RCini＠congressfinancial.com

Hello, all: Does anyone have a link to a good 2600 cartridge archiver project? I spent quite a bit of time last night looking for one, but I keep coming up empty. None of the 2600 emulation pages I hit really speak about making your own ROM images. Thanks. Rich

25 years, 3 months

2
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AT&T 3B1/7300 stuff available in PA.

by korpela＠ellie.ssl.berkeley.edu

Saw this on Usenet. Figured someone might be interested. Contact original author directly. Eric >From: dhorvath(a)cobs.com >Subject: Re: Getting Rid of equipment >Newsgroups: comp.sys.3b1 > >I have several 3b1's and 7300's, memory boards, power supplies, hard drives, >unused spare monitor, software, etc., etc., etc. I've been trying to sell them >or otherwise find a good home for them. But without luck. > >Anyone interested? > >- David > >-- >David B. Horvath, CCP dhorvath(a)cobs.com >Consultant, International Lecturer, Adjunct Professor >Author of "UNIX for the Mainframer" and other books. >

25 years, 3 months

1
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Mac SE/30

by azog＠azog.org

About a month ago, I posted that I picked up a Mac SE/30, sans keyboard and mouse. Today, I got a keyboard and mouse, and now need to figure out how to bypass security on this thing. It boots, and prompts me for a password. Three times, and it shuts down. I know Apple has older MacOS releases on their ftp site, but that begs the question - how do I create MacOS disks if I lack a Mac to create them? I think I recall seeing somewhere that you can bypass extensions on bootup by pressing a shift key, but that didn't work, so I assume that this isn't an extension, but something intergral into the OS itself...

25 years, 3 months

7
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Tek 4114 monitors ( Kansas City)

by mmcfadden＠cmh.edu

> I was wandering through the local computer surplus and came across 3 very > large Tektronix monitor/terminals that are labeled 4114. > I did several web searches but most of the information is that they > existed not much about their capabilities. Any additional info about them > would be appreciated. > > Mike > mmcfadden(a)cmh.edu >

25 years, 3 months

1
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Flea Market finds...: VAX 5000/200 point me to a faq please...

by claudew＠videotron.ca

Hi There is a large flea market about 20 minutes from here every weekend. It fills about 2 to 3 drive-in parking lots during summer and even during the dead of winter in below 0 temperatures, there are about 100 tables and lots to look through... Never know what you are going to find...today I found: Vax Station 5000/200 with 32Megs (?) $5 Amiga 500/mouse/rf mod + Intellivision II (for my game console collector friends) $7 Box full of C64 stuff : 1541, C64, 2 CBM Power Supplies, TI99 Power Supply, 1530 Mouse, RCA cables, 1541 cable, 1 Fast Load $7 Sensory Chess Challenger 9'' inbox/manual (1981...)...my Phd-teacher brother is a chess champ and collects old chess sets...I taught he would get a kick outta this...$4 I passed on a Sharp PC-10 portable computer + printer at $10 as-is...I offered $5...no go... Can someone tell me more about the VAX? I know nothing about these things. Either point me to a good faq or a manual or just tell me how to check this thing out...I searched the net and after 20 minutes found close to nothing about this thing...the compaq site is a maze.... Unit powers on PS fans (3!) spin. Small leds in back (6?) near ports seem to cycle through in a "logical and non erratic way" at start up... There are 4 large memory boards. Counting the chips I suspect these boards hold 8 Megs each...4 boards...32Megs...built in ethernet from what I can see... Slot -0- in back does not have a cover anymore. There is nothing there...I suspect this held a video card (?) can I still hook this up headless to a terminal? I connected my trusty Wyse60 to this and after a short "POST" I get...: ?IO 5/rzl/vmunix (bb rd) >> Returns bring more >> prompts so I am talking to the box...So I guess it works... The thing has no floppy or keyboard connector...Just a SCSI port....how does it boot? -- from scsi cdrom? (linux something to try on this I suspect...?) Sorry about the questions but I know nothing about these VAX boxes... Thanks for the help Claude claudew(a)videotron.ca

25 years, 3 months

5
8
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i286-Mainboard

by SUPRDAVE＠aol.com

In a message dated 3/27/01 3:32:55 AM Eastern Standard Time, mapr0003(a)stud.uni-sb.de writes: > > On Mon, 26 Mar 2001, Richard Erlacher wrote: > > > > > AWARD also uses the DEL during POST as well, at least in about 10 of > the boxes I > > > have here. Phoenix uses <F1> at any time during POST, though I seldom > see that > > > one outside of Packard Bell, HP, and other U.S. makers' systems. > > > > Phoenix also used CTRL-ALT-ESC on some of the 286s that they provided > > BIOS for. > > It's an Ami Bios - the DEL key is used for going into the Configuration > Setup - BUT inside the Setup I cannot change the values for the amount of > memory, which I suppose is detected in the POST-routine ... I don't know > if it's a good idea to test all possible jumper settings in the nearer > area of the memory slots ;-) > > FWIW, you could try searching around on motherboards.org I'm not sure how far back they have information though.

25 years, 3 months

1
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NeXT's, museums and a dead apple monitor

by agraham＠ccat.co.uk

>Date: Mon, 26 Mar 2001 16:18:03 -0800 (PST) >From: Cameron Kaiser <spectre(a)stockholm.ptloma.edu> >Subject: Re: NeXT's available > >Hi Curt: > >I'd definitely be interested in one of the Nextstations/monitors. My >zip is 92324 so that should be worst case as far as shipping :-) > >Thanks, Naaah, worse case as far as this list is concerned would be me in the UK or Iggy :) As for the recent banter about museums while we were researching the history of our house last week while I was on the tail end of a break because of depression and stress I had a wander round the 'computer' section of the museum - the archives section is part of the museum - and all it consisted of was an old teletype printer, a PET and a ZX81 all massively enclosed in glass cases! I'm in a quandry as to what to do when I eventually DO start exhibiting my stuff. If *I* was going to a computer museum I'd like to be able to use the machines as much as possible, but since it's all *my* stuff I'm paranoid about theft/damage etc since some of the machines took sweating blood to get here - my Lisa is a prime example. Also some of the machines are unused and still bagged up from when they were manufactured and I'm in two minds as to whether I should open 'em for educational purposes or keep 'em sealed for museum purposes. (Tony, I *know* you'd want to get them open :o)) I tinker with as much of the collection as is possible given the amount of time I've actually got spare (not a lot) for self-educational and research purposes; definitely not enough time though..... Oh yeah, I got a 1995 AppleVision 1710 monitor last weekend and I get no display on it; since it's the first one and not a later one can I safely assume it's suffered the most common fault for 1710s and I need a new Wave Deflection module? I think that's what it was called...... Recent additions to the museum site are some unopened Timex Sinclair stuff and a whole slew of adverts and reviews from a couple of early 80s UK mags - wallow in nostalgia :) s'it for now. cheers! -- Adrian Graham MCSE/ASE/MCP C CAT Limited Gubbins: http://www.ccat.co.uk (work) <http://www.snakebiteandblack.co.uk> (home) <http://www.binarydinosaurs.co.uk> (The Online Computer Museum) 0/0

25 years, 3 months

1
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Boot disk / CP/M set for Morrow Micro-decision (MD2)

by geoffr＠zipcon.net

I have one of these beasties and it has 1 dying floppy with part of CP/M with it. I'd like to get a full copy of cp/m for this.

25 years, 3 months

1
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Free - 17" Sun Sony Tinitron Monitor but....

by JRichardson＠softwright.co.uk

> I have a 17 inch Sony monitor (model GDM-1950) free to anyone who wants to > pick it up. The catch, it has a sync(?) problem and therefore doesn't > display anything very well. Beautiful (and huge and heavy) - if you can fix > it you'll have a great monitor. Email or call for info. Has to be out of > here in the next two weeks. Hmm, I've got a 16" version of one of these which I use now and again - the picture quality is far superior to most of the junk out there these days (I guess these things almost hit the 10 year mark? I believe mine was dated around '92) They work well under Linux if you're prepared to do a bit of tweaking of video modes - no need for a special graphics board. I believe I got mine working under DOS a few years ago with an old Trident video board too - one of the larger-column text modes happened to work with it nicely. there's quite a bit of tweaking that can be done inside the monitor too (be careful, obviously) if you're prepared for a few hours of suffering! Maybe someone knows what the options are for converting a fixed-frequency monitor to multisync? (Tony??) - can this even be done, is it way too much trouble etc.? Presumably fixed-frequency and multisync monitors are 90% the same inside (at least in concept)? Certainly the big old workstation monitors I've seen inside of seemed to be nicely broken into stages... cheers Jules

25 years, 3 months

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New HP

by rigdonj＠intellistar.net

I went scrounging again today and found a new source of old computers. There I found and passed up a HP 9000 835 and a HP 9836A. BUT I did bring home a HP 9000 520 (aka HP 9020). :-) I used to think the HP 9845 was big and heavy but not any more! I don't know much about the 520 except that they were supposed to be the replacement for the HP 9845 but had developement problems and were very late getting into production and few of them were sold. I believe it has BASIC in ROM but I'm not sure. Does anyone have docs for these? It has two HP-IB cables that are connected internally and a 15 pin socket under the front edge. What are they for? I picked up a HP 9153 hard drive that was in the same box with the 520. I'm hoping that there's software for the 520 on it. Joe

25 years, 3 months

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Urgent Inquiry for ghetto blaster

by mike.kuehn＠bitways.de

Urgent Inquiry for ghetto blaster Dear Sirs, We are an international trading company, mainly serving the European industry. The Bitways Group purchases globally on own account and then resells the products to various clients. Our aim is to source globally and to offer our clients the best prices worldwide. >From one of our own or rented databases we have retrieved your address as potential supplier of the product(s) we would like to purchase at this time. If you can promptly give us your very best quote you might be chosen as the supplier we have been looking for as early as next week. Please offer any kind of stocklots you might have available. Please provide 3 (three) samples for evaluation purposes. Please let us know your best quote as this will enable us to work more efficiently. In conclusion I would like to ask you to send your company?s detailed address, your bank detail, your VAT number (if applicable) and pictures of the inquired item(s) along with your quotation. If you can not reach us by e-Mail (Please check if your provider is listed at the ORBS-list. If so your e-Mails are not being forwarded to us!) please print the e-Mail and fax it to +49-40-28800-111. Looking forward to hearing from you soon, we are Yours sincerely, BITWAYS GLOBAL SOURCING GMBH M.Kuehn Global Sourcing Manager Team Blue Hohe Br?cke 1 Haus der Seefahrt D-20459 Hamburg Tel.++49(0)40/28800-301 Telefax.++49(0)40/28800-401 E-mail:mike.kuehn@bitways.de www.bitways.de BITWAYS GLOBAL SOURCING GMBH M.Kuehn Global Sourcing Manager Team Blue Hohe Br?cke 1 Haus der Seefahrt D-20459 Hamburg Tel.++49(0)40/28800-301 Telefax.++49(0)40/28800-401 E-mail:mike.kuehn@bitways.de www.bitways.de

25 years, 3 months

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SUN networking problems

by Arno_1983＠gmx.de

New details on the SUN networking issue became available yesterday evening when the second SUN decided to boot once more (we still don't know how that's possible as it had claimed to have lost its battery-buffered Setup information last time we powered it up a few months ago). However, both SUNs' transceivers and the cable work as each SUN can detect the other's presence. The printer cannot be pinged or sent data to, no matter which SUN tries or to which of the both remaining transceivers it is connected. Peter Turnbull wrote: >Have you tried pinging the printer by it's IP address instead of >it's name? Try a broadcast ping? No, not yet, but I will when I get home in the evening. Luckily, I found the IP adresses in a stack of handwritten papers we were given together with all that stuff. As we're not too familiar with the commands, how is a broadcast ping done? >Have you checked the printer settings to make sure it's using the >correct IP address? Is that set from its panel, or by RARP/BOOTP/ >DHCP? If the latter, it needs a server to boot. Tony Duell wrote: >That printer isn't attempting to get information (IP address, >software, whatever) from a server, is it? We're trying hard at the moment to find the printer manual. We know we have it somewhere, but it's buried... Peter Turnbull wrote: >If the Sun didn't get a valid signal from the transceiver when it >booted, it might not have enabled le0, or there might not be a route >through it. >Not necessarily, it might not have brought up the le0 interface if the >AUI cable was disconnected when it powered up. We switched off everything before reconnecting the cable and when we booted the next time, we did not get any le0 errors. Besides, the SUNs can see each other over the network, so the connection must be enabled. >However, if there is an LED for either transmit or receive, it >should flash when you try a ping. If it doesn't, either the Sun >isn't sending the packet or there's a short circuit. >Both LEDs? I'm guessing as to what the LEDs do, but that probably >means it's transmitting something. Maybe an ARP or BOOTP request. >It depends on what the LEDs do. One might be for collision, in >which case there's a cable fault if it flashes. More likely one is >transmit and the other receive, in which case what you see is >correct, it transmits a packet and simultaneously detects what it's >transmitting. >Hmm... What are the LEDs on the transceivers labelled? Mine have 5 >LEDs: Power, SQE, Transmit, Receive, and Collision. (I also have >several transceivers with no LEDs, or just one for power, but none >with three.) No, there isn't. The LEDs on the transceivers are only PWR (Power), SQE (as on yours) and COL (which must be Collision). Nothing for TX or RX, although that would be much more helpful for troubleshooting. -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

25 years, 3 months

1
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Apple Lisa-Sun Stuff

by LFessen106＠aol.com

In a message dated 3/26/01 9:56:39 AM Eastern Standard Time, brian.roth(a)firstniagarabank.com writes: > > I also have a couple of Sun SPARCstation LC's free to good homes. They do > work but no monitor, keyboard or mice. Just the lunchbox. Also, I do not have > the root passwords. > > Brian. I could use one of these Brian. -Linc Fessenden

25 years, 3 months

5
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Vax 6000 Website update.

by geoffrob＠stmarks.pp.catholic.edu.au

Hi All, http://www.stmarks.pp.catholic.edu.au/vax Minor updates to the Vax 6000 Website. http://www.stmarks.pp.catholic.edu.au/vax Additions/Reformatting/Corrections to the Adapter listings. Thanks to Antonio Carlini for feeding me some tables of data that have now been integrated. There are now 2 Adapter pages, one for BI and one for XMI. Cheers Geoff Roberts Computer Systems Manager Saint Mark's College Port Pirie, South Australia geoffrob(a)stmarks.pp.catholic.edu.au netcafe(a)tell.net.au ICQ: 1970476

25 years, 3 months

1
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[Fwd: NeXT's available]

by LFessen106＠aol.com

In a message dated Mon, 26 Mar 2001 9:20:32 PM Eastern Standard Time, "Obi-Wan(a)MacHeretics.com" <kyhansen(a)speakeasy.net> writes: << I'm in for a complete station. I know the cubes are spoken for. Kyle Hansen >> Just a thought, but does anyone on the list have the OS for these beasties? I just checked and NetBSD isn't quite ready for prime time on them yet, and neither is Linux unfortunately... -Linc Fessenden

25 years, 3 months

2
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z80 CPM C compiler (free)

by ajp166＠bellatlantic.net

From: Jim Strickland <jim(a)calico.litterbox.com> >Just stumbled across this and thought the CPM folk might find it useful. >http://www.htsoft.com/software/cpm/index.html > >It's a C compiler by a cross-compiler maker. Good reminder, it's been available for several years (its on the WC Cdrom c1994). Hi-tech C compiler is one of the better ones for the CP/M OS. Allison

25 years, 3 months

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[Fwd: NeXT's available]

by kyhansen＠speakeasy.net

I'm in for a complete station. I know the cubes are spoken for. Kyle Hansen

25 years, 3 months

1
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z80 CPM C compiler (free)

by jim＠calico.litterbox.com

Just stumbled across this and thought the CPM folk might find it useful. http://www.htsoft.com/software/cpm/index.html It's a C compiler by a cross-compiler maker. -- Jim Strickland jim(a)DIESPAMMERSCUMcalico.litterbox.com ----------------------------------------------------------------------- BeOS Powered! -----------------------------------------------------------------------

25 years, 3 months

1
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EtherTalk blues

by spectre＠stockholm.ptloma.edu

For some reason my 7.1 Macs won't switch their connections to EtherTalk from LocalTalk. They just say "an error has occurred" and put me back to LocalTalk. I do have the EtherTalk Phase 2 extension installed. I know these cards are good because they pass the Farallon diagnostics and the cable tests fine as well. They're EtherWave NuBus (PN890-TP). I'm using the latest Farallon EN software from their website. The cards also work fine in NetBSD, just not MacOS. Ideas? -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- If you cannot convince them, confuse them. -- Harry S Truman ---------------

25 years, 3 months

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What used these?

by uban＠ubanproductions.com

I picked these up a number of years ago and in sorting through some of my stuff, I rediscovered them. They seem to be an early version of a 3.5" floppy disk system, before what we know today as a 3.5" floppy became standard. http://www.ubanproductions.com/Images/drivette1.jpg http://www.ubanproductions.com/Images/drivette2.jpg http://www.ubanproductions.com/Images/drivette3.jpg http://www.ubanproductions.com/Images/drivette_disks.jpg Note, one of the disks is labeled 3 1/4". The fact that Dysan made a disk for this thing leads me to believe that someone must have used it. The markings on the drive are: Tabor Corp. Westford MA Drivette Microfloppy Disk Drive Model TC500 If anyone knows what this drive was used in (if anything), I would be interested in knowing. --tom

25 years, 3 months

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VAX 11/725

by brian.roth＠firstniagarabank.com

Ethan, Its one of my favorites. Still looking for the RC25 to fill the hole though. The console tape drives need to be repaired so it no longer boots. I remember hearing that someone either tried, or successfully used a PC with a term program to send over the bootstrap loader. Brian Cute package, the 11/725. I used to have one (got it right when DEC interdicted VMS license transfers for one month to attempt to force buyers of used hardware to purchase new licenses... failed miserably). It was on loan to a friend's company that was bought out and moved without notifing me that they were taking my VAX out of state. :-( I even had the floating point accelerator in it. At the time, it was my best number cruncher (14 years ago). -ethan Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

25 years, 3 months

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Free DEC docs and equipment, Washington DC area

by xds_sigma7＠hotmail.com

The software for DECMouth, of course! MWHAHAHAHAHA Another Bad Pun, Courtesy of Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

1
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HP 86/97 CPM

by rigdonj＠intellistar.net

Hi All, I finally got the docs for the CPM module for the HP 86/87. After reading them it appears that you need specail software to make the module work. Does anyone have the software for it? Joe

25 years, 3 months

2
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SUN networking problems

by Arno_1983＠gmx.de

Hi folks, we powered up the working pizza box and the laser this weekend. At first we got a lot of le0: no carrier - transceiver cable problem? style errors during bootup and in the console window, but they disappeared when we re-seated the AUI cable on the SUN. Unfortunately, that was not all of the problem. If you now try to print to pa3 (which is the CalComp?s name), the job is stored in the printer queue, but there also appear a number of error messages "No answer from host pa3 on parallel port" when you LPQ for it. PINGing for the printer ends up with "no answer from pa3". Is the SUN trying to send the data to a parallel-port printer although the CalComp is on the Ethernet? Peter Turnbull wrote: >Do those transceivers have a set of LEDs on them? I suspect not, but that >might tell you if anything is being transmitted/received. On the transceiver connected to the SUN, the PWR (green) and SQE (yellow) LED are alight as long as the system is powered up. The only (green) LED on the printer?s transceiver is also on as long as the printer is. If I connect the printer to one of the 3-LED transceivers, the PWR LED is on all the time and the other two give very short flashes when the printer has completed its warming-up cycle and is in ready mode. There are also three LEDs on the back side of the printer next to the AUI connector; two of them (green and orange) illuminate during the warming-up phase, then the orange one goes out and the green one begins to flash. I have not noticed any flickering etc. of LEDs when trying to print or ping. Tony Duell wrote: >How hard is it to swap over the transceiver cables between the 2 Suns? If >it then works, you know the problem is either the transceiver that used to >be connected to the working sum, or a nasty problem caused by reflections >on the cable It is very easy, as the machines stand nearly side-by-side on two neighboring desks and the cable (with the four Transceivers on it) is coiled to a ring and lying behind them. (No, not a very tight ring or one with sharp bends?n?twists in it ) I haven?t yet had the time to try it, but: If I connect the printer to one of the 3-LED transceivers, the PWR LED is on all the time and the other two give very short flashes. However, transmission of data isn?t possible either. Bill Gunshannon wrote: >First, "a piece" of yellow cable won't work. The lengths were part of the >spec and very important. Having to do with reflections and such (anybody >here still have a TDR??) I already mentioned the network ran on our ?piece? until we installed that new tap and transceiver, and that didn?t change it?s length as it wasn?t inserted after cutting the cable apart but only connects by its contacts penetrating the insulating layers of the cable. I know that the length is an integer multiple of 2.5m (2.5m between the black bands and 1.25m between outmost band and terminating resistor on each end) and my guess goes towards a total length of either 12.5m or 15m (5 or 6 times 2.5m). Tony Duell wrote: >The black bands should be every 2.5m (+/- 5cm) along the cable. >There must be only a minimal 'stub' between the cable and the transceiver >(<3cm seems to be the accepted value) Bill Gunshannon wrote: >Second, The cable is marked with black stripes. The taps must go on these >stripes. As the cable already came from the factory with the bands on it (I was told that), they should have the correct spacing (I really didn?t want to uncoil all that stuff just for measuring!) and on the transceivers that already were on the cable, the band is: -in one case, inside the tap block -in two cases 1 and 2cm out of it (which means ca. 6cm away from the core contactor pin). We placed the new one also in such a way that the band is now inside the tap and not visible from the outside. How about the distance terminator to first tap? I measured here about 1.25 meters, which would be half the tap-to-tap distance. As I don?t know much about signal transmission in Coaxes, does this make as much sense as it seems to? Thanks for all given and coming help on solving this. Arno Kletzander -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

25 years, 3 months

2
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Batteries for Sharp PC-45XX Still Sold

by jerryjh＠imt.net

On 2001-03-25 classiccmp(a)classiccmp.org <Russ Blakeman> said: >I've been able to get a lot of older/odd battery packs in the past >from Batteries Plus, a chain of battery suppliers. Some had to go >to their "lookup techs" but within 3 days they always had a source >for one. They aren't always the cheapest though, a lot depends on >the individual franchise owner and how much he/she will haggle with >you. I have a reseller account with a nearby one and the owner >always gives me a decent break. Before I went on the Internet, I went to Batteries Plus. Yes, they did list a battery for my Sharp PC-4502, yet they didn't call me back and actually "forgot" to get back with me, even though they had it written down in a notebook on their counter. Considering how quickly I got serviced from the Raymond Sarrio company, I'd consider them a serious contender with Batteries Plus in the category of classic machines. Jerry... on his IBM PC/AT 5170 Model 339 | My laptop computer's a ***** 9600kbps/30MB HD/512k RAM/8 MHz | Tandy TRS-80 Model 100 Net-Tamer V 1.11.2X - Registered

25 years, 3 months

2
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TU-58 rollers and emulation (was Re: VAX 11/725)

by brian.roth＠firstniagarabank.com

The LCD package for LRP is at: http://lrp.steinkuehler.net/Packages/LCDProc.htm I might be able to help you with parts for your RK11-C restoration. You have a working classic-8? Brian. I even have an LRP package for interfacing an LCD to my router so you can > watch the IP traffic. Love to get a URL to that. I run LRP myself, and set them up for friends with cable modems about every other month. > Way cool project BUT the display is still in the bubble wrap. Same problem, > little time. It's all about priorities. I have a set of back burner projects that have been there for ten plus years, but they are still there (RK11-C restoration, PDP-8/i re-restoration, TU-58 emulator, Straight-8 cleaning (printer's ink), and such). -ethan Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

25 years, 3 months

3
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RK11-C and Straight-8 restoration

by djg＠drs-esg.com

> From: Ethan Dicks <ethan_dicks(a)yahoo.com> > > I have the delay line needed to add the second core stack to > the -8/i. That is another goal - upgrade the mem on the -8/i and try to > get some sort of mass storage device on it and install some kind of OS on it. > Got peripherals (RK05, RX01, DF32/DS32, TU56, PR04). Lacking in pre-omnibus > interfaces. > The DF32 is a external bus device so just hook up the 11 interface cables and away you go. I am restoring one of my 8/I's with DF32 now, computer is running and hope to have the drive finished this weekend. I should finish the DF/DS32 manual scanning also this weekend, it will be up with the rest soon and more pictures of the 8/I and DF32. The disk monitor system runs on DF/DS32, the paper tape image (and DF32 diags etc) are in ftp://ftp.pdp8.net/software/paper_tapes/ docs http://www.pdp8.net/query_docs/query.shtml OS/8 will run with a DF32 and DS32 and 8k but may not have enough space to be too useful. I also may be able to help with 8/I parts. The reader/punch can also be hooked up to an 8/I if it had the interface cards in the 8/I. Longer term the 8/I will join the 8/E runnable online although I will have to replace the disk heads with an emulation since the drive lands the heads on the disk when it spins down so has a limited number of spin down cycles. The platter is nickel cobalt alloy so is more durable than the iron oxide ones (ex RK05's) when the head does hit it. I also have a Straight 8 maintenance manual on the too scan list, if you need it (or any others, I may have them) before I get to it let me know and I will do it sooner. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights

25 years, 3 months

2
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Virus Alert !!!

by SUPRDAVE＠aol.com

<sigh> another reason not to use Micros~1 products for email... In a message dated 3/6/01 7:33:09 PM Eastern Standard Time, rigdonj(a)intellistar.net writes: << > >The following came to us at work, and I wanted to pass on the info: > >STRICOM has received official notification of a new virus in the wild called >the Naked Wife Virus. > >This virus is sent by email message with the subject of the "Naked Wife" or >"FW: Naked Wife" with text of "My wife never looked like that! ;) ". >There is an infected attachment named "nakedwife.exe". When opened, this >virus resends itself to other recipients in address book. This virus also >affects all .dll, .exe, .com, and .bitmaps files. Do not open this email >or the attachment if received. > >Information has not yet been received as to whether Norton or McAfee will >detect and clean this virus. > >Microsoft Outlook email systems are the primary target of this virus and we >do not believe Lotus Notes is affected >> -- DB Young Team OS/2 old computers, hot rod pinto and more at: www.nothingtodo.org

25 years, 3 months

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Heath Zenith Hero Jr

by guerney＠bigpond.com

I was amazed to find a local classified ad for a Hero Jr in the Saturday morning paper and soon after I was owner of a very clean Robot for a few dollars (about time I had that sort of luck). Unused for many years but just some cobwebs inside, no corrosion. No charger or remote control or cartridges or documentation unfortunately, but there is lot of technical info on the web I have found today. The old battery will not take a charge using my car [translation - auto] battery "trickle" charger, so I'll have to wait 'till next week to buy a new 12V 3.5A sealed lead/acid battery - that's how this Australian model was powered - not like the 6V batteries described on the web pages for the Hero Jr. And I don't have a 12V PSU to power it up with in the meantime. Am I using an appropriate re-charging device? And could I use the trickle charger itself as the PSU for testing? A multimeter reads about 13V across the terminals when it is powered up, but with my minimal electrical knowledge I do not dare try something that could be fatal to the Hero. None of the Web pages mentioned how much this thing cost new (Feb 85 manufacture date I suspect by a sticker on board inside) and I am curious about that. If anyone has any warnings or "gotcha's" about working with this thing, I'd be glad to hear from you. Other than that, I can't wait - from the info on the web it sounds great fun. And it goes to show, however rare or unusual the item is - eventually one of them turns up here in Brisbane, Australia. Phil

25 years, 3 months

2
1
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Apple Lisa-Sun Stuff

by brian.roth＠firstniagarabank.com

Both the SPARC's have been spoken for. If I get any more I'll post them here again. Thanks, Brian. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

25 years, 3 months

1
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Apple Lisa-Sun Stuff

by brian.roth＠firstniagarabank.com

I picked up an Apple Lisa this weekend and it is missing the keyboard and mouse. Anyone on the list have one they would like to part with? trade? money? etc... I also have a couple of Sun SPARCstation LC's free to good homes. They do work but no monitor, keyboard or mice. Just the lunchbox. Also, I do not have the root passwords. Brian. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

25 years, 3 months

1
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10Base5/Thicknet (was Re: SUN networking problems)

by mmcfadden＠cmh.edu

I seem to remember crawling through the interstitial floors in the University of Kansas Medical center dragging 500 feet of yellow cable between our VAX and a Siemens MR scanner. I may have some pieces of the cable and a vampire tap or two if I can find them. I'll bet the original cable is still there just unused. We never removed old cable just left it in place. We did have to make it look like the "official" network cables or the hospital wondered who had been in the interstitial spaces. It's kind of hard to tap a cable while holding a flashlight in your mouth and trying not to fall into any of the patient examining rooms below you. I also have some of the cabletron boxes with a heartbeat that we used to convert thin coax to RJ45 or Thicknet to RJ45, in fact there is one is use across the hall from me connecting the GE CT scanner to a 3D workstation. I see them ocasionally at my local computer surplus, the PC guys want to throw them away because they don't recognize them. Allied Telesyn CentreCom MX10 IEEE802.3 microtransciever 10 base 2 (mau) Mike mmcfadden(a)cmh.edu

25 years, 3 months

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SUN networking problems

by pete＠dunnington.u-net.com

On Mar 21, 7:39, Arno Kletzander wrote: > we're running a *small* network consisting of two Sun SPARCstations (1+ and > 2) and a CalComp CCS600 ES laser printer. They're all connected to > "Transceivers" with 15-pin Sub-D connectors on them which sit along a yellow cable > (approx. 10mm = 4/10" in diameter). AFAIK this concept is called "Thick Ethernet" > (IEEE 802.3), am I right? Yes, that's right. > we've put another transceiver on the cable strictly according to the > installation guide that came with it (drilling hole into cable with > recommended tool etc...). > Since we've done that, it's no longer possible to print from one of the > SUNs to the CalComp although the PC is not yet connected to the > transceiver. > The whole assembly looks somewhat like this: > > TermRes _______ _______ _________ _______ TermRes > I-------I TC1 I------I TC2 I------I TC3 I------I TC4 I------I > I I I I > SUN 1+ SUN 2 CalComp (planned) PC It sounds like you've shorted the cable. Do those transceivers have a set of LEDs on them? I suspect not, but that might tell you if anything is being transmitted/received. You could try removing one terminator and testing the DC resistance between core and shield of the coax; it should be 50 ohms with nothing powered up. If you have shorted it, the best solution is to cut out the damaged part, fit an N-series plug to both ends, and put a coupler between them. Or, instead of a coupler, a transceiver with N-series connections (which are more common and cheaper than vampire taps anyway). Another way is to discard some or all of the thick coax, and use thin coax with BNC connectors instead. Then you use BNC T-pieces to connect to miniature transceivers, which are fitted directly to the 15-pin sub-D AUI connectors on the backs of the machines, with no bulky drop cables. You can get N-to-BNC adaptors and BNC terminators for pennies. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 3 months

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SUN networking problems

by pete＠dunnington.u-net.com

On Mar 26, 7:28, Arno Kletzander wrote: > Hi folks, we powered up the working pizza box and the laser this weekend. At > first we got a lot of > le0: no carrier - transceiver cable problem? > style errors during bootup and in the console window, but they disappeared > when we re-seated the AUI cable on the SUN. Unfortunately, that was not all of > the problem. If you now try to print to pa3 (which is the CalComp?s name), > the job is stored in the printer queue, but there also appear a number of > error messages "No answer from host pa3 on parallel port" when you LPQ for it. > PINGing for the printer ends up with "no answer from pa3". > Is the SUN trying to send the data to a parallel-port printer although the > CalComp is on the Ethernet? Maybe. Have you tried pinging the printer by it's IP address instead of it's name? Try a broadcast ping? Have you checked the printer settings to make sure it's using the correct IP address? Is that set from its panel, or by RARP/BOOTP/DHCP? If the latter, it needs a server to boot. If the Sun didn't get a valid signal from the transceiver when it booted, it might not have enabled le0, or there might not be a route through it. Check with "netstat -rn" and "ifconfig le0". > Peter Turnbull wrote: > >Do those transceivers have a set of LEDs on them? I suspect not, but that > >might tell you if anything is being transmitted/received. > > On the transceiver connected to the SUN, the PWR (green) and SQE (yellow) > LED are alight as long as the system is powered up. That's how it should be. However, if there is an LED for either transmit or receive, it should flash when you try a ping. If it doesn't, either the Sun isn't sending the packet or there's a short circuit. > The only (green) LED on the > printer?s transceiver is also on as long as the printer is. That probably just means it has power. > If I connect the printer to one of the 3-LED transceivers, the PWR LED is on > all the time and the other two give very short flashes when the printer has > completed its warming-up cycle and is in ready mode. Both LEDs? I'm guessing as to what the LEDs do, but that probably means it's transmitting something. Maybe an ARP or BOOTP request. It depends on what the LEDs do. One might be for collision, in which case there's a cable fault if it flashes. More likely one is transmit and the other receive, in which case what you see is correct, it transmits a packet and simultaneously detects what it's transmitting. > There are also three LEDs on the back side of the printer next to the AUI > connector; two of them (green and orange) illuminate during the warming-up > phase, then the orange one goes out and the green one begins to flash. > I have not noticed any flickering etc. of LEDs when trying to print or ping. Hmm... What are the LEDs on the transceivers labelled? Mine have 5 LEDs: Power, SQE, Transmit, Receive, and Collision. (I also have several transceivers with no LEDs, or just one for power, but none with three.) > Tony Duell wrote: > >How hard is it to swap over the transceiver cables between the 2 Suns? If > >it then works, you know the problem is either the transceiver that used to > >be connected to the working sum, or a nasty problem caused by reflections >on > the cable Not necessarily, it might not have brought up the le0 interface if the AUI cable was disconnected when it powered up. > on the cable, the band is: > -in one case, inside the tap block > -in two cases 1 and 2cm out of it (which means ca. 6cm away from the core > contactor pin). > We placed the new one also in such a way that the band is now inside the tap > and not visible from the outside. Sounds like two of the original tranceivers are slighly off position according to the specification, but on a relatively short cable with only a few transceivers, I doubt a small deviation matters very much. > How about the distance terminator to first tap? I measured here about 1.25 > meters, which would be half the tap-to-tap distance. As I don?t know much > about signal transmission in Coaxes, does this make as much sense as it seems to? The distance to the terminators doesn't matter, it doesn't have to be any particular distance. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 3 months

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Apple CDROMs and SUNs

by spectre＠stockholm.ptloma.edu

Will an Apple 300i external SCSI CD-ROM work with a Sun? I know this has been talked about here before but I don't remember what the verdict was or if any modifications can be made. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Let us live! Let us love! Let us share our darkest secrets! ... you first. -

25 years, 3 months

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