IBM Space Saving Keyboard

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Model M (SSK)
IBM Industrial Model M Space Saving Keyboard.jpg
Branding IBM, Lexmark
Manufacturer IBM OPD, Lexmark, Unicomp
Layouts 84-key ANSI or 85-key ISO
Keyswitches Buckling spring over membrane
Interface PS/2, 3151 RJ-45
Dimensions 406 × 190 × 58 mm
(16.0 × 7.5 × 2.3 inches)[1]
Weight 1.90 kg (4.2 pounds)
Years of production 1986—1999
Price $180 (1986)[2]
$156 (1992)[3]
$59 (UNI04C6, 2002)[4]

The IBM PS/2 Space Saving Keyboard, sometimes known as the Model M Mini or the SSK, was an 84/85-key compact variation of the IBM Enhanced Keyboard produced between 1986 and 1999, and was available as an option on the IBM 316x terminals, the PS/2 range, the Industrial computers and later the high-end IBM systems.

While the Space Saving Keyboard was usually available for the same price as the Enhanced Keyboard when bundled with an IBM system, it seems that most customers preferred the full size board, and thus the Space Saving Keyboard is less common.

As with the Enhanced Keyboard, the Space Saving Keyboard had the Model M manufacturing designation. Part number 1391472 is one such variation. Another is 1392934 (which was made around 1987).

Features and design

The number pad was integrated with the keyboard. Shift-NumLk would switch normal alphabet keys to keypad function. The top row 7, 8, 9 keys stayed the same, the U, I, O keys became 4, 5, 6, respectively, and J, K, L became 1, 2, 3, respectively. Lastly, M became 0. If Shift was pressed while in NumLk mode, those keys became navigation keys, with the same functions as the dedicated keys down the right side of the keyboard (Insert, Home, PgUp, Del, End, PgDn and the 4 arrow keys).

Unfortunately, the keyboard has no lights to indicate the mode of the keys.

  • Embedded number pad - IBM 1391472

  • Embedded number pad - highlighted

  • Embedded number pad - navigation

Variants

Part Number Connector & cable Computer terminal Number of keys Layout Other Years
1370475[5] Detachable SDL cable 84 US ANSI Lexmark made, FCC ID IYL1397440, plastic ovular blue-on-grey logo at the top left
1390359[6] 84 US ANSI Plastic black-on-white ovular badge on the top left; made in USA
1391472 Detachable SDL → PS/2 long coiled cable 84 US ANSI Plastic ovular black-on-white badge at the top left; made in USA
1391487[7] SDL detachable cable ISO-FR
1391518 Coiled, attached cable IBM 3162 ASCII Display Station[2] 84 US ANSI Presumed 1986 onwards according to the IBM announcement letter
1392464[8][9] Detachable SDL → PS/2; Short, flat coiled cable IBM 6901 Personal Typing System 84 US ANSI Aka "DisplayWrite" SSK; customized legends for word processing
1392934 Detachable SDL cable 84 US ANSI Made in USA
1392980[10] Coiled, flat & attached cable with RJ45 connector 84 US ANSI 1991
1393278[11] SDL cable 84 US ANSI Made in USA
1393691[12] Detachable SDL → PS/2 long coiled cable 84 US ANSI Custom legends for SABRE airline reservation system
1394054 84
1395100[13] Detachable SDL → PS/2 coiled cable 84 US ANSI Made by Lexmark
1395217[14] SDL cable 84 US ANSI Financial sublegends
1395682 Detachable SDL → PS/2 coiled cable IBM 7785 84 US ANSI Industrial grey case; blue F1, F2 and navigation cluster; no numpad-like sublegends on the alphanumeric block; white on dark grey logo[15][16]
1395691[17] Detachable SDL → PS/2 cable IBM 7785 84 ? US ANSI ? Industrial case
1397680[18] Detachable SDL → PS/2 coiled cable 84 US ANSI Blue logo
1397681[19] Detachable SDL → PS/2 long coiled cable 84 US ANSI Blue logo
1397961[20] Detachable SDL → PS/2 long coiled cable 84 US ANSI Made by Lexmark; Lexmark logo top left
41G3565[21] IBM 7537/7546 Industrial Computer, GearBox 800 84 US US English (EMEA) version, industrial case
41G3566 IBM 7537/7546 Industrial Computer, GearBox 800 84 UK 41G3565, UK English version
41G3567 IBM 7537/7546 Industrial Computer, GearBox 800 84 Swedish 41G3565, Swedish version
41G3568 IBM 7537/7546 Industrial Computer, GearBox 800 84 French 41G3565, French version
41G3569 IBM 7537/7546 Industrial Computer, GearBox 800 84 German 41G3565, German version
41G3570 IBM 7537/7546 Industrial Computer, GearBox 800 84 Italian 41G3565, Italian version
41G3571 IBM 7537/7546 Industrial Computer, GearBox 800 84 Spanish 41G3565, Spanish version
41G3572 IBM 7537/7546 Industrial Computer, GearBox 800 84 Belgian 41G3565, Belgian version
41G3573 IBM 7537/7546 Industrial Computer, GearBox 800 84 Turkish 41G3565, Turkish version
41G3574 IBM 7537/7546 Industrial Computer, GearBox 800 84 Dutch 41G3565, Dutch version
41G3575 IBM 7537/7546 Industrial Computer, GearBox 800 84 Swiss/German/French 41G3565, Swiss/German/French version
41G3600[22] Detachable SDL cable 84 US ANSI Raised, ovular white on black logo at the top left; industrial case with no drainage holes; made by IBM
41G3600[23][19] Detachable SDL → PS/2 coiled cable 84 US ANSI Raised, ovular white on black logo at the top left; industrial case with drainage holes; made by Lexmark - FCC ID IYL1397440
41G3601[24][25] 85 ISO UK
41G3604 85 German Industrial case, same logo as 41G3600
41G3613 ? US ? Industrial case
UNI04C6 Detachable SDL → PS/2 coiled cable 85 ISO US Made by Unicomp

Gallery

P/N 1391472

  • Top view

  • Angle view

  • Different angle

  • Left hand side with logo

  • Right hand side

  • Cable

  • Label underside

P/N 1392934

According to one of its owners this unit came with single-piece keycaps.[26]

  • Top view

  • Underside

  • Barrels

  • Cable connector

P/N 1392980

  • Front view

  • Cable exit

  • Controller

  • Back label

P/N 1397681

  • Front view

  • Angle view

  • Internal assembly

  • Bottom

P/N 41G3604 (Industrial SSK, German)

  • Top view

  • Underside

Bolt-modded SSK

  • Internal assembly

  • Plate underside

  • Closeup view

Misc

  • SSK customized with RGB modifiers

  • SSK for airline reservation system

References

  1. ↑ IBM Announcement Letter No. ZG92-0306 dated September 15, 1992 — Physical Specifications (of the 84-key Space-saving Industrial Keyboard) (Wayback Machine) Dated 1992-09-15. Archived 2019-04-14.
  2. ↑ 2.0 2.1 IBM — Announcement Letter Number 186-167 dated September 2, 1986: IBM 3162 ASCII Display Station (sharktastica). Retrieved 2024-06-12.
  3. ↑ Google Books — PC Magazine, February 25, 1992 (The Write Stuff, pp. 303–329) Retrieved 2024-04-24.
  4. ↑ Unicomp — Inventory specials (Wayback Machine) Archived 2002-10-14.
  5. ↑ Deskthority — IBM SSK club! Posted 2014-01-06. Retrieved 2024-04-24.
  6. ↑ Geekhack — oldest model m space saver? Posted 2013-08-13. Retrieved 2024-04-24.
  7. ↑ Deskthority — IBM SSK club! Posted 2015-03-29. Retrieved 2024-04-24.
  8. ↑ Deskthority — IBM 6901 "Personal Typing System" Posted 2021-07-09. Retrieved 2024-04-24.
  9. ↑ Deskthority — IBM SSK club! Posted 2016-05-01. Retrieved 2024-04-24.
  10. ↑ Deskthority — IBM SSK club! Posted 2013-10-15. Retrieved 2024-04-24.
  11. ↑ Geekhack — 2004 IBM branded Unicomp SSK? P/N 1393278 Posted 2016-07-16. Retrieved 2024-04-24.
  12. ↑ Worthpoint — IBM 1393691 Retrieved 2024-04-24.
  13. ↑ Deskthority — A Comparison of SSKs by elecplus. Posted 2019-06-18. Retrieved 2024-04-24.
  14. ↑ ripster — The IBM Model M Mini used at Shearson Brothers, aka "The Wall Street Bernie Madoff Special" (Imgur gallery, March 2013) Retrieved 2024-04-24.
  15. ↑ Deskthority — IBM Industrial SSK differences Posted 2017-03-14. Retrieved 2024-04-24.
  16. ↑ Deskthority — IBM Industrial Space Saver Posted 2013-09-18. Retrieved 2024-04-24.
  17. ↑ IBM — IBM 7785 - Hardware Maintenance - Reference/Service (manualslib), p. 220 ("Parts"). Retrieved 2024-04-24.
  18. ↑ Geekhack — Model M space saver club Posted 2015-12-15. Retrieved 2024-04-24.
  19. ↑ 19.0 19.1 dw_junon — dw's IBM keyboard page Retrieved 2024-04-24.
  20. ↑ Flickr — Lexmark 1397961 by JP. Retrieved 2024-04-24.
  21. ↑ IBM Announcement Letter No. ZG92-0306 dated September 15, 1992 — Product number (IBM.com) Dated 1992-09-15. Retrieved 2024-04-24.
  22. ↑ Deskthority — IBM Industrial SSK - P/N 41G3600 Posted 2023-02-28. Retrieved 2024-04-24.
  23. ↑ Deskthority — IBM Model M Rescue Posted 2016-06-20. Retrieved 2024-04-24.
  24. ↑ Deskthority — IBM SSK club! Posted 2014-08-03. Retrieved 2024-04-24.
  25. ↑ Geekhack — What did you get in the mail today? Posted 2014-07-08. Retrieved 2024-04-24.
  26. ↑ Deskthority — IBM SSK club! Posted 2014-09-05. Retrieved 2024-04-24.
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