Author Topic: Using a 122 key keyboard /w unique scan codes on USB-only Mac?  (Read 2887 times)

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Offline ChrisB

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Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« on: Sun, 12 October 2014, 00:37:32 »
I'd like to use a 122 key keyboard on my Mac, but according to other threads, the only way to get unique scan codes for F13-F24 et cetera is to use the Unicomp PS/2 Emulator version. Macs don't have PS/2 ports, and I've read here that PS/2-to-USB converters eat the extra codes. I use Karabiner to remap keys on the Mac, and if F24 sends Shift+F12, then I can't define a macro for Shift+F24, because that would be `Shift+Shift+F12'. I suppose I could learn to live with this limitation, though, if there is no workaround. (No workaround other than building a custom controller, that is.)

If I buy a USB 122 key from Unicomp, I'll buy the 3270 version instead of the 5250 version, because the 5250 has a dedicated key that sends the sequence Shift+Tab (`Back Tab'), and I can't remap what Shift+Tab does unless I'm willing to give up back-tabbing through text entry forms, which I'm of course not. The 3270 sends Ctrl+F8 for the same key position, which is easier to remap without conflicting with other programs.

Offline supamesican

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #1 on: Sun, 12 October 2014, 09:47:22 »
does unicomp make an emulator version with USB? Cause the emulator ones are the ones that have the scan codes instead of the shift + (whatever). I too am going to be getting a 122 key, pearl on pearl, and when I looked at their customize page the 3270 emulator only had a ps/2 version. You may be better off just calling them tomorrow and asking them.

Offline fohat.digs

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Offline ChrisB

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #3 on: Mon, 13 October 2014, 00:27:12 »
So I actually emailed Unicomp before last Friday morning to ask if I could get a USB 122 key that sends unique scan codes to a Mac. I haven't heard back from them yet, and usually they have been pretty quick with answering my other inquiries. I may just call them Monday. Worst case I could always buy a PS/2 Emulator and then either make a Soarer or buy one from a member here.

Those eBay Lexmarks that fohat.digs posted would be perfect if they had ANSI horizontal enter keys and wide left shift keys. I read in the past that Unicomp will do this mod on a new 122 though I haven't recently confirmed this with them. I plan to Monday.

The other crazy idea I'm playing with is just using a whole second keyboard as a custom keypad. With Karabiner for the Mac one can remap key events separately for each keyboard plugged in, so a separate keyboard would mean 101-104 extra keys to program instead of the 20ish extra keys one gets with the 122 key. I'd use all those extra keys so that I could type all the symbols I need for writing code and also do most code editing and 3D editing commands I need without ever having to hold a modifier or hit ESC to do a mode switch (as with vi).

I've played with using multiple foot switches before as an alternative to needing a bunch of extra keys, but it feels nicest to just be able to do things with a single key press. (I'm actually using a foot switch right now to do the Shift key as I type this message, but the foot switch feels somewhat slow, though I guess it is a good skill to practice as a form of cross-training for piano pedaling. It takes quite a bit of practice to coordinate the pedaling rapidly and fluidly.)

Offline 0100010

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #4 on: Mon, 13 October 2014, 08:34:47 »
There is another user here performing ANSI + Soarer conversions on terminal Ms - http://geekhack.org/index.php?topic=63873.0

Last I asked Unicomp, they will make you one as well, but it was like $40 extra on top of the custom keyboard price (so about the same price as buying a converted one already).

If it was me, I would pick up an old terminal M and bolt mod, ANSIfy and Soarer convert myself.  Probably less costly monetarily, a heck of a lot more work - but with the satisfaction that I 'built' it.
  Quoting me causes a posting error that you need to ignore.

Offline ChrisB

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #5 on: Mon, 13 October 2014, 14:44:29 »
Thanks for that listing of that ANSI'fied and bolt modded 122. That's exactly something I would buy and I just contacted the seller to ask when he'll have another ready to sell.

Offline ChrisB

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #6 on: Mon, 13 October 2014, 14:48:04 »
And as to doing to conversion myself... right now I have more money than time and I have to meet certain software deadlines. I also still need to finish my custom stand up desk setup.... In the new year I may investigate converting an old Model F myself with Harry's Bolt Mod guide.

Offline fohat.digs

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Re: Using a 122 key keyboard /w unique scan codes on USB-only Mac?
« Reply #7 on: Mon, 13 October 2014, 15:23:45 »

old Model F myself with Harry's Bolt Mod guide.


Please, NO!

What will it take for me to get rid of that?

If a moderator sees this, please talk to me about deleting that obsolete old thread altogether.

This  http://geekhack.org/index.php?topic=48786.msg1338079#msg1338079  is the only method I recommend now.
« Last Edit: Mon, 13 October 2014, 15:25:32 by fohat.digs »
And remember:
Trump is weak, not strong. Losing, not winning. A failure, not a success. A villain, not a hero. A big blubbery babyman, anything, anything but a strong man.
- James Talicaro CBS 2025-10-04