Re: Ethernet connection sensitive to cable length
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Posted by msg on May 4, 2008, 2:17 am
Please log in for more thread options Starlan 1 Mbps? Michael | ||||
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Posted by ps56k on May 4, 2008, 2:24 am
Please log in for more thread options > Jeff Liebermann wrote:
> > <snip> >> 4. In the miscellaneous category,... ethernet over 25 pair
>> telco bundles >
> Starlan 1 Mbps? > > Michael wow - StarLan - That really takes me back... We creating the video training and marketing materials... | ||||
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Posted by Jeff Liebermann on May 4, 2008, 4:02 am
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>Jeff Liebermann wrote:
> ><snip> >> 4. In the miscellaneous category,... ethernet over 25 pair
>> telco bundles >Starlan 1 Mbps?
>Michael Nope. 10Mbits/sec half-duplex ethernet over 25 pair telco bundles. Works fine up to about 100ft. It might work farther, but I haven't tried it. Gaaak. Starlan brings back not very fond memories of doing battle with 3B2-400 clunkers using Ma Bell 258A wiring on CAT3 shared with Pre-Merlin phone systems. I had no idea what I was doing, so it's little wonder that I could never make it all work quite right. Sorry, no LatticeNet. Some Token Ring (4Mbit/sec), Moses Networks Promise LAN, DECNet, Novell Netware, 3com something pure ISO stack, Microsoft LAN Manager, Lantastic, and probably a few more that I'm successfully forgotten about. Add a bunch of TCP/IP implimentations for Windoze 3.x that never quite worked right, and a mess of non-802.11 schemes and protocols, that went nowhere. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 | ||||
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Posted by ps56k on May 4, 2008, 12:42 pm
Please log in for more thread options Jeff Liebermann wrote:
> Gaaak. Starlan brings back not very fond memories of doing battle
> with 3B2-400 clunkers using Ma Bell 258A wiring on CAT3 shared with > Pre-Merlin phone systems. I had no idea what I was doing, so it's > little wonder that I could never make it all work quite right. 3B2 - ahhhhhh - We also did the training video & product intro for the "Unix PC" - along with the IBM 3270 replacement..... can't recall the number, maybe 6500 ? Lastly - we did the AT&T PC product materials & launch - ahhhhhh - | ||||
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Posted by Rich Seifert on May 4, 2008, 12:55 pm
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> Moses Networks Promise LAN
I knew some of the developers there, and just *loved* the product name. In the end, it was more of a promise than a LAN, however. My all-time favorite communications product name was from a company (whose name I forget) up in Marin county who built a very simple device. "Back in the day", terminals connected to computers using modems, which had a "DCE flavor" (modem-to-host computer) and a "DTE flavor" (modem-to-terminal) for the wiring. If you wanted to connect a terminal directly to a computer, you could eliminate the modem, but needed to cross-connect the transmit/receive pairs in the cable. Today we all know this as a "null modem" cable, and it is fairly ubiquitous, but it hasn't always been so. This small company marketed a "null modem" device; a small box that had the transmit/receive cross-wiring, with connectors that would allow the use of ordinary, uncrossed-wiring modem cables to the DTE and DCE. Simple, but useful if you don't have a null modem cable. No technological genius here, but great marketing savvy. Instead of calling it a "cable crossover" or some such, they called the device a "QuasiModem"--the box had a picture of a bent-over Quasimodo carrying the device under his arm, with the slogan "We've got a *hunch* you'll like it!" Believe it or not, between the last two sentences I just went outside my office and shot a bobcat who was chasing my house cat, whose name happens to be "Cat 3"(he is my third cat). No, I am not planning to upgrade him to Cat 5. -- Rich Seifert Networks and Communications Consulting 21885 Bear Creek Way (408) 395-5700 Los Gatos, CA 95033 (408) 228-0803 FAX Send replies to: usenet at richseifert dot com | ||||
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> 4. In the miscellaneous category,... ethernet over 25 pair
> telco bundles