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Author Topic: IBM Model M terminal conversion  (Read 1114 times)

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Offline Touch_It

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IBM Model M terminal conversion
« on: Mon, 04 August 2014, 10:59:47 »
Working on converting my terminal keyboard to usb. (at work and do not have the model number).  Anyways yesterday I found a PS2 mouse I could salvage and bought a multimeter for a continuity test.  However using the pin layout diagram I initially misread it and messed up my wiring.  I however didn't realize this till after I plugged the ps2 port into my computer.  I know that to get it to work i need a teensy board but wanted to see if I could do anything in the bios.  My question is with my wiring wrong and plugging it in did i ruin my board.  Is there any way to test without buying a teensy board?

Thanks
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Offline fohat.digs

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Re: IBM Model M terminal conversion
« Reply #1 on: Mon, 04 August 2014, 11:54:51 »
I don't know the answer to your question, but it is a shame when they put power and ground as mirror images of each other on the plug. Presumably, you looked at the diagram for the socket end and assumed that it was the male plug end?

A teensy is a good thing to have around, even if this board is toast. It comes in handy when you find old gear.

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That's the message. That's the whole message. Say that every day, not just to reach America's frustrated young white men, but people of every age, race, and gender.
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Offline Touch_It

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Re: IBM Model M terminal conversion
« Reply #2 on: Mon, 04 August 2014, 13:46:16 »
You described pretty much my situation.  I did realize stuff didnt match up but was to late when I realized the picture was of the female end and not the male.  I will probably go ahead and purchase a teensy as I want to see how bad I messed up and I ultimately want to get a model F, be it terminal or  the original with the weird 83 key layout.  Ultimately it was 100% my fault for not being careful and reading better but it was a tad confusing albeit this is my first time doing this kind of thing with a keyboard and I'm years removed from doing electronics work.
« Last Edit: Mon, 04 August 2014, 13:55:09 by Touch_It »
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Offline fohat.digs

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Re: IBM Model M terminal conversion
« Reply #3 on: Mon, 04 August 2014, 14:04:19 »
My device ain't pretty but it is a very useful thing to keep in "the drawer"

http://geekhack.org/index.php?topic=58941.msg1348717#msg1348717
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"However, even though I was born in the Mesozoic, I do know what anyone who wants to reach out to young people should say: Billionaires took your money. They took your chance to buy a home. They took your chance at a good education. They stole your opportunities. Billionaires took the things you want in life. If you really want those things, you have to take them back.
That's the message. That's the whole message. Say that every day, not just to reach America's frustrated young white men, but people of every age, race, and gender.
Late-stage capitalism is a wealth-concentration engine, focused on vacuuming up every dollar and putting it in as few hands as possible. Republicans are helping that vacuum suck.
How does a tiny fraction of the population get away with this? They do it by dividing the other 99% of Americans against themselves."
- Marc Sumner 2025-05-30

Offline Touch_It

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Re: IBM Model M terminal conversion
« Reply #4 on: Mon, 04 August 2014, 14:10:42 »
Quote from: fohat.digs on Mon, 04 August 2014, 14:04:19
My device ain't pretty but it is a very useful thing to keep in "the drawer"

http://geekhack.org/index.php?topic=58941.msg1348717#msg1348717


pretty is a relative term.  In the traditional sense you are probably right.  But that's pretty awesome work and do find it pretty like I find IBM keyboards pretty.  Thanks for sharing.
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