Author Topic: Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?  (Read 655 times)

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Offline ander

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Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?
« on: Mon, 08 October 2018, 05:26:54 »
Calling buckling spring gurus...

I just posted here in "Great Finds" about a 1995 Lexmark-made Dell Model M (p/n 1369050). The seller says it's "in working condition", but it looks like it has only 4 pins in its PS/2 connector. (There's a closeup on the page.)

The Model M cables I have handy all have 6 pins. Did Lexmark economize at some point and use cables with only the pinouts they needed?

If you have some insight into it, please post in the Great Finds topic, okay? Thanks!
We won with poorly educated. I love the poorly educated. Donald Trump (Feb. 23, 2016)

Offline Olumin

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Re: Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?
« Reply #1 on: Mon, 08 October 2018, 15:01:05 »
Yes it seems that way.

Technically Keyboards only use 4 out of those 6 Pins to beginn with, so it would make sense for Lexmark to save on Produktion by cutting those 2 out.

It should work perfectly fine.

If it has a removable cable and it really bothers you, just replace it.

But it should give you no Problems. Not that a quick google Search wouldn't have told you that already...

Offline Snowdog993

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Re: Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?
« Reply #2 on: Fri, 12 October 2018, 00:20:53 »
Yes it seems that way.

Technically Keyboards only use 4 out of those 6 Pins to beginn with, so it would make sense for Lexmark to save on Produktion by cutting those 2 out.

It should work perfectly fine.

If it has a removable cable and it really bothers you, just replace it.

But it should give you no Problems. Not that a quick google Search wouldn't have told you that already...

Well, kinda, sorta.
The first PS/2 cables that came out, did, in fact have 4 pins. The other 2 pins were added when they could use them for RS/6000 systems. But that's not THAT important, is it?
If you want to see pictures you can go here: http://snowdog993.imgur.com

Offline ander

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Re: Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?
« Reply #3 on: Sun, 14 October 2018, 02:54:15 »
Yes it seems that way.

Technically Keyboards only use 4 out of those 6 Pins to beginn with, so it would make sense for Lexmark to save on Produktion by cutting those 2 out.

It should work perfectly fine.

If it has a removable cable and it really bothers you, just replace it.

But it should give you no Problems. Not that a quick google Search wouldn't have told you that already...


Thanks, but would you mind lowering your voice? I finally got the kids to sleep.
We won with poorly educated. I love the poorly educated. Donald Trump (Feb. 23, 2016)

Offline Snowdog993

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Re: Buckling spring experts: Lexmark Model M with 4-pin PS/2 plug?
« Reply #4 on: Mon, 15 October 2018, 14:14:07 »
Found it. Here ya go.
If you want to see pictures you can go here: http://snowdog993.imgur.com