Keyboard identification

[seebart]

Hello keyboard experts,

I can`t find out anything really about this Hewlett-Packard keyboard I bought last year. The board looks new, I paid about 10 Euros for it. I can`t test it due to the connector, it has a smaller variation SDL type connector. I would also be interested to know what kind of switch I am looking at here? There is nothing in the wiki on this board. I hope the pictures are good enough.

Thank you for your help.

[Muirium]

The exposed switches look like rubber domes to me, but I am far from the best at identifying these around here. Strange cable though. A clear photograph of its connector would be useful.

[seebart]

is the last picture clear enough?

[Kurk]

I've seen these board before. The detachable cable seems to use the same SDL connector as IBM'm model M. What's the connector on the other side? PS/2 ?

[seebart]

this is what the back looks like. Yes it is a SDL, but smaller than the IBM one. The cable is not detachable and there is another SDL port.

[kps]

Ah, that's HP-HIL.

HIL is complicated, like ADB or USB, not simple like PS/2. Bitsavers has a copy of the manual describing it, but HP used a pair of custom driver ICs for the physical layer, so building a modern converter would be more than a weekend project without one.

A PS/2 version of the keyboard also exists. Mine is HP C1405B, but that may differ for other layouts.

It is a rubber dome.

[seebart]

kps, thank you for your insight.