IBM Model M keyboard for 3192

Charles Dickman chd at chdickman.com
Wed Aug 22 20:16:05 CDT 2018


I got a box of miscellaneous model M keyboards last week. One of them
has 122 keys and the connector is the size of a PC/AT type circular
DIN connector, but the 5 pins are spread over 240deg instead of the
AT's 180deg. The part no. is 1390702 and a little research found it is
from an IBM 3192 terminal.

Is it electrically/protocol compatible with the PC/AT and PS/2
keyboard or a different animal completely?

-chuck


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