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Author Topic: Ps2 to USB  (Read 1738 times)

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Offline ThePolarCat

  • Thread Starter
  • Posts: 2
Ps2 to USB
« on: Fri, 20 May 2022, 17:27:17 »
Hello,

I have an old Ps2 keyboard that I like and i want to convert to usb, I looked up the pin out of ps2 and usb, and wired it correctly.
When connected, the LEDs light up for a second then nothing happens, the computer doesn't receive the input.

the ps2 cable have 5 wires not just the usual 4 (5v, Gnd, Data, Clck) the fifth wire is white and on the other end all 5 wires are crimped into RJ12 plug.

Does anybody have any ideas why its not working and what the fifth wire is for?
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Offline Leslieann

  • * Elevated Elder
  • Posts: 4518
Re: Ps2 to USB
« Reply #1 on: Fri, 20 May 2022, 17:30:23 »
Was it designed for PS2 and USB or was it just designed for PS2?

If it's only meant for PS2 it will not work with an active adapter, not a simple wire change.
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Offline ThePolarCat

  • Thread Starter
  • Posts: 2
Re: Ps2 to USB
« Reply #2 on: Fri, 20 May 2022, 20:25:33 »
I don’t know how I can tell if it’s ps2 only but, from its age I can assume it predates usb
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Offline Tactile

  • Posts: 1433
  • Location: Portland, OR
Re: Ps2 to USB
« Reply #3 on: Fri, 20 May 2022, 22:57:07 »
Just changing the plug won't work. You need to convert PS/2 signals to USB. You can build your own or buy a ps/2 to USB convertor.

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