Model M Enhanced Terminal Keyboard
IBM membrane buckling springs
PBT with dye-sublimated legends
IBM grey oval badge, IBM blue oval badge
Single-setting flip-out feet
Grey coiled fixed modular 8P8C ("RJ-45")
US ANSI (ASCII-style)
Earliest recorded price
$150 USD in 1987
Comes with specific ASCII character sublegends on the numeric keypad keycaps, produced by IBM Greenock as late as 1997
Data Last Updated
More about this type of keyboard...
The Model M terminal keyboards were the first introduction of the standard Model M design. Used on various IBM terminals such as the 3151, 3161, 3192, and various InfoWindow display stations, these keyboards heavily resemble PC-compatible IBM Enhanced Keyboards but commonly lack any lock-lights, featured 240-degree pin arranged DIN or modular 8P5C connectors, and have an extra key (102 vs 101 for ANSI, 103 vs 102 for ISO) by splitting the usual numeric keypad + key into two 1-unit keys. Unicomp is still able to produce keyboards to a similar spec.