P/N 25H2142 - Model M3 Keyboard Details & Specs

Provided by the ASK Keyboard Part Number Database

IBM 3153 InfoWindow II Color ASCII Display Station Keyboard

A designation from my own type naming scheme used to categorise this keyboard with or from others by their common features and market intent but may/may not be derived from official names.
"Model M3" Keyboard
Known Host SystemsKnown Host Systems
A list of known host systems this keyboard could be bundled with or at least designed specifically to operate with. This could be terminals, desktop PCs or laptops.
IBM 3153 InfoWindow II Color ASCII Display Station (IBM 3101 family)
Possible companies responsible for making this keyboard for the company marketing it.
Earliest AppearanceEarliest Appearance
The year (and possibly the quarter) that this keyboard part number was introduced, first observed, first recorded or the first example found.
Original KeycapsOriginal Keycaps
The keyboard's original keycaps' material and text/symbol printing technique.
PBT with dye-sublimated legends
Casing ColourCasing Colour
The original colour of this keyboard's outer casing. For keyboards whose casing materials are known to yellow, this will refer to the original colour before such transformation occurs.
Pearl White
The possible branding and logo styles found on this keyboard part number. This could be multiple styles at once or possible styles found over time.
Simple/generic IBM logo
The style of this keyboard's flip-out or extendable feet. If applicable, this may also state how many levels of height adjustment are available and whether the feet could be rubberised.
Single-setting flip-out feet
The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets).
IBM scancode set 3
The keyboard-to-host connection. This is could be a description of a cable (its colour, whether its coiled, whether its detachable, and what connector is at its end) or the name of a wireless technology.
Grey coiled-style fixed modular-8P5C ("RJ-45") cable
Key CountKey Count
The number of keys that this keyboard originally had.
Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
Image of Layout/LanguageThe original regional/language layout this keyboard was configured as. Both the language and the standardised key layout may be listed, and in the case of both being known or defined, it will be styled as language then standard.
US ANSI (PC-style)
Additional NotesAdditional Notes
Extra notes about this keyboard that may be of interest or are important to know.
Seemingly a PC-style terminal keyboard that's otherwise identical to the Model M2, "Model M3" designation possibly a misprint given other completely different Model M3s are known
Documents ("Doc"), websites and/or webpages ("Web") that were used as a source of information for this keyboard part number. Examples of this keyboard part number I own ("ASK") will also be included as sources.
Web: http://ps-2.kev009.com/pcpartnerinfo/ctstips/e83e.htm
Data Last Updated 2022-07-03

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The "Model M3" is a singular IBM 3153 InfoWindow II Color ASCII Display Station keyboard (P/N 25H2142) that is seemingly just a PC-style Model M2 terminal keyboard with the "M3" designation. The earliest appearance of the keyboard was 1995, so given the fact the M3 designation already existed and was assigned to IBM Personal System/2 L40SX devices several years before that year, it's likely P/N 25H2142 feature a misprint on the label.