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geekhack Community => Keyboards => Topic started by: Conditioned on Sat, 14 February 2015, 03:56:11

Title: Active PS/2 male to USB female
Post by: Conditioned on Sat, 14 February 2015, 03:56:11
Hey,

So I'm trying to figure out a way to connect my Topre 105/u via the ps/2 port. A regular usb f to ps/2-m won't do, apparently the adaptor has to be active. However during my search I have only found active adaptors that work the other way around, ie usb m to ps/2 f.

Do you know a specific one that works the way I describe, that is active ps/2 male and usb female?

Thanks in advance!
Title: Re: Active PS/2 male to USB female
Post by: Daniel Beardsmore on Sat, 14 February 2015, 08:16:04
You have a computer too old to have USB ports? An old laptop to which you can't fit a USB PCI card?
Title: Re: Active PS/2 male to USB female
Post by: hwood34 on Sat, 14 February 2015, 13:27:57
I don't think I've ever seen an active converter, though I don't think I've ever seen anyone with your problem
Title: Re: Active PS/2 male to USB female
Post by: Conditioned on Sat, 14 February 2015, 14:05:41
http://www.ebay.com/itm/USB-to-Dual-PS-2-Keyboard-Mouse-Converter-Cable-Active-Adapter-USB-2PS2-NEW-/261768036500?pt=LH_DefaultDomain_0&hash=item3cf2974094

Thats active but they are reversed of what I need.
Title: Re: Active PS/2 male to USB female
Post by: Daniel Beardsmore on Sat, 14 February 2015, 15:12:46
http://deskthority.net/keyboards-f2/how-to-connect-usb-keyboard-to-ps-2-socket-t8426.html

Summary: The converter exists, but a KVM is cheaper.
Title: Re: Active PS/2 male to USB female
Post by: 0100010 on Sat, 14 February 2015, 17:04:58
http://deskthority.net/keyboards-f2/how-to-connect-usb-keyboard-to-ps-2-socket-t8426.html

Summary: The converter exists, but a KVM is cheaper.

http://www.startech.com/Server-Management/KVM-Switches/PS-2-to-USB-Keyboard-and-Mouse-Adapter~PS22USB

Nice!  Did not know such a thing existed.  Indeed very pricy.
Title: Re: Active PS/2 male to USB female
Post by: Conditioned on Thu, 19 February 2015, 15:23:17
Thanks for your reply. Ouch that is pricey indeed.
Title: Re: Active PS/2 male to USB female
Post by: wyatt8740 on Thu, 19 February 2015, 17:05:00
I've read about people using an arduino to communicate with a computer PS/2 port (act as a PS/2 keyboard). With a USB host shield for one you could probably make the adaptor.
Title: Re: Active PS/2 male to USB female
Post by: FrostyToast on Thu, 19 February 2015, 17:07:54
I want to know why you are so keen on using your board with PS/2.
I mean, there is sort of the benefit that PS/2 is "faster" however that really shouldn't matter to anyone IMO.
Since the PS/2 port isn't simply plug-and-play, it just makes it that much less convenient to use.
Title: Re: Active PS/2 male to USB female
Post by: hwood34 on Thu, 19 February 2015, 17:10:54
http://deskthority.net/keyboards-f2/how-to-connect-usb-keyboard-to-ps-2-socket-t8426.html

Summary: The converter exists, but a KVM is cheaper.

http://www.startech.com/Server-Management/KVM-Switches/PS-2-to-USB-Keyboard-and-Mouse-Adapter~PS22USB

Nice!  Did not know such a thing existed.  Indeed very pricy.
damn, that's absolutely ridiculous
Title: Re: Active PS/2 male to USB female
Post by: FrostyToast on Thu, 19 February 2015, 17:16:00
http://deskthority.net/keyboards-f2/how-to-connect-usb-keyboard-to-ps-2-socket-t8426.html

Summary: The converter exists, but a KVM is cheaper.

http://www.startech.com/Server-Management/KVM-Switches/PS-2-to-USB-Keyboard-and-Mouse-Adapter~PS22USB

Nice!  Did not know such a thing existed.  Indeed very pricy.

WOW :eek:
I am not experience in any way whatsoever with these sorts of things, but could an active converter really cost that much?
Is there anyone here who has done a DIY project for this?
Title: Re: Active PS/2 male to USB female
Post by: 0100010 on Tue, 24 March 2015, 17:15:26
Found another item like this - a bit cheaper though.

Tripp Lite Minicom PS/2 to USB Converter  http://www.tripplite.com/products/series/sid/1019
Title: Re: Active PS/2 male to USB female
Post by: orihalcon on Wed, 25 March 2015, 23:26:38
Most high end mechanical keyboards will work with a passive USB to PS/2 adapter.  Most of them actually require that to get NKRO.  Usually the description will mention something like NKRO over PS/2 or 6 KRO over USB. My guess is that the PS/2 adapter you are using is for mice and not keyboards.  Keyboard ones tend to be purple in color. Mice are green. Not sure on your specific model, but it seems to say that it is PS/2 compatible for the 105/ub, though not sure what the B in the part number means.
Title: Re: Active PS/2 male to USB female
Post by: Conditioned on Tue, 21 April 2015, 16:35:46
No I've tried purple, thanks though. I tested another keyboard so I know the ps/2 converter and the ps/2 port are working fine. May I ask where you find info on the 105u supporting ps/2 through a converter?