Author Topic: IBM 7690 Nursing station keyboard interface/protocol?  (Read 1097 times)

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Offline Maledicted

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IBM 7690 Nursing station keyboard interface/protocol?
« on: Fri, 26 June 2020, 20:28:47 »
So, I'm the new owner of one of these bad boys, as of a few minutes ago:




IBM 7690 Nursing Terminal Assembly KEYBOARD Brown Alps. Dyesub caps. ULTRA RARE


Apparently the computer they originally connected to was an IBM PS/2 inside, so maybe (hopefully) the keyboard's protocol is the same? It does sound like they did at least have a functioning ps/2 port for external keyboards, so maybe I can just wire this sucker up to a 5-pin DIN or ps/2 connector.

Does anybody know for sure? There's not much information on those systems at all on the internet. Apparently they were only made in small numbers for clinical trials but were never put into full production?

Offline E TwentyNine

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Re: IBM 7690 Nursing station keyboard interface/protocol?
« Reply #1 on: Sat, 27 June 2020, 05:38:56 »
It looks like a rehoused 5140 keyboard, most likely will hook up to ps/2.

Might want to search if anyone has repurposed a 5140 keyboard and how they did so.
Daily driver: SSK or Tenkeyless IBM AT
1984 Model M Industrial Prototype ⌨ 1992 Black Oval Industrial SSK ⌨ 1982 5251 Beam Spring ⌨ 89 Key "SSK" ⌨ M13 triplets

Offline Maledicted

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Re: IBM 7690 Nursing station keyboard interface/protocol?
« Reply #2 on: Sat, 27 June 2020, 23:52:47 »
It looks like a rehoused 5140 keyboard, most likely will hook up to ps/2.

Might want to search if anyone has repurposed a 5140 keyboard and how they did so.

Good call. You're probably right. I see that at least one person has at least already figured out the pinout of the ribbon cable for that board, so even if I'm not lucky enough to find some kind of ps/2 controller inside, I should be able to wire up a Teensy or something.

Offline jacobalbertus1

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Re: IBM 7690 Nursing station keyboard interface/protocol?
« Reply #3 on: Fri, 10 July 2020, 19:58:37 »
id say the thing uses AT/ps/2 protocol because it has lock lights
Model f 122 USB industrial paint (daily), model f xt inbox almost nos Ellipse approved, NOS model m ssk , Model F 77 for class (special needs I was told I had to use a mech or a key beeper by the school) model m 1391401 silver label ( this was a factory messup where they stuck a 139101 sticker on it and sent it with a ps/2) model m 1390131 model m unicomp industrial case modded  and a model f at