https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html (https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html)
https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html (https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html)
Thanks for the URL, but i didnt find anything that could help me ... What exactly should i do?
https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html (https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510-330.html)
Thanks for the URL, but i didnt find anything that could help me ... What exactly should i do?
You can write your own converting firmware and build a converter unit, but someone's already done it to perfection. Take a look at Soarer's converter (linked below). You will have a difficult path ahead of you if you decide not to use this converter, so I'd strongly advise you to do so.
https://geekhack.org/index.php?topic=17458.0
Wow. From the little I can find in a DuckDuckGo search, the DEC LK250 is supposed to be IBM-compatible somehow ...
DEC's more known keyboards, the LK201 and LK401 used another protocol.
For those, you could find schematics and source code on www.kbdbabel.org
I think you would have to inspect the PCB to see which is which and then trial and error.
GND is usually easiest to find because many circuits are often connected directly to GND. VCC likewise, but not as much.
GND often has a black cable, with VCC often white or red.
Do use a PS/2-to-USB converter when testing it.
There are Soarer's converters for RJ45 on Ebay if you want to just buy one.
http://www.ebay.com/itm/NEW-RJ45-to-USB-Soarers-Converter-Model-M-Terminal-Keyboard-Remapping-Macros-/281476431381?hash=item41894d7e15:g:wwYAAOSwF1dUSZVm
I think you would have to inspect the PCB to see which is which and then trial and error.
GND is usually easiest to find because many circuits are often connected directly to GND. VCC likewise, but not as much.
GND often has a black cable, with VCC often white or red.
Do use a PS/2-to-USB converter when testing it.
Well i would like to avoid that, but i guess it would be the only option. Maybe someone can help until the board arrives ...
Findecanor mentioned that this keyboard would be IBM compatible, so maybe the connections are identical to some connector on IBM keyboards right?
Regarding the PS2 converter, i guess i will buy a RJ12 adapter and connect all the wires directly to the board, thanks :)There are Soarer's converters for RJ45 on Ebay if you want to just buy one.
http://www.ebay.com/itm/NEW-RJ45-to-USB-Soarers-Converter-Model-M-Terminal-Keyboard-Remapping-Macros-/281476431381?hash=item41894d7e15:g:wwYAAOSwF1dUSZVm
Thanks for the help csmertx, but i cant use that converter on this keyboard ... The cable has two connectors, a RJ12 on one end that connects to the keyboard and a SDL on the other that should connect to the terminal i believe.
I think i will buy this adapter just to test if the keyboard works: http://www.ebay.com/itm/272118852476?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
With this adapter i can connects all the wires much more easily.
LK250 — LK-style layout with PC compatibility (dual-mode), PC DIN connector
... the LK250 and LK450, which are LK-style keyboards intended for use on Microsoft Windows systems. These keyboard provide the LK-style layout, and can select PC-style operations and LK-style operations.