Here's my version of Engicoder's XT2PS2 Keyboard Converter built on a perfboard and attached to my IBM 5155 that's been upgraded with a 286 motherboard. Works GREAT!
Notice that the board needs to be tucked under the keyboard pc board due to the 5155's keyboard enclosure.
Thank you Engicoder for the design and firmware!
Bottom of xt2ps2/wires.
Top of xt2ps2.
Top side of keyboard with xt2ps2 connected.
(turned out to show off xt2ps2 and connectors.)
Under side of keyboard with xt2ps2 attached.
Part way into the enclosure.
The keyboard in place.
All closed up.