FKB87xx contains a specific style of Fujitsu keyboard, the various series of which are numbered in this range. These are rubber dome over membrane keyboards, with discrete plungers.
|Operating force||55±25 gf|
|Tactile drop||20 gf typical|
|Operating life||10 M cycles minimum|
|Switch type||Membrane (rubber dome presumed)|
104-key and 105-key variants, offering DIN-5 and mini-DIN-6 connectors. The difference between FKB8725 Series and FKB8729 Series is not known. The Fujitsu logo is optional.
FKB8725 Series was classified as “Low” on the Fujitsu Takamisawa website in 1998. Model FKB8725-651 was classed as a Fujitsu Value Keyboard, and is depicted as ANSI layout. A PS/2 adapter is included, suggesting that FKB8725 Series has an AT plug fitted to the cable (adaptable to PS/2) while FKB8729 Series has a PS/2 plug fitted as standard.
All models use the PS/2 protocol with a 6-pin mini-DIN connector. Model numbers with a “/20” suffix are also RoHS compliant; the non-RoHS models are PC99 compliant (purple plug) while the RoHS version does not appear to comply with PC99. Strangely, there is no Swiss RoHS compliant model given in the datasheet.
FKB8735 Series is the Fujitsu ValuePlus Keyboard, also referred to as ErgoTrac Keyboard. This design incorporates a small thumb-operated pointing device with two buttons above the arrow keys; this ErgoTrac pointing device appears to function similarly to pointing sticks, such as IBM’s TrackPoint. The keyboard appears to provide a DIN-5 AT connector with a PS/2 adapter, with an additional DE-9 plug for the RS-232 serial connection for the ErgoTrac.
FKB8735 Series was classified as “Medium” on the Fujitsu Takamisawa website in 1998.
|FKB8735-101||104||US||Ivory||2 × mini-DIN-6||No|
|FKB8735-801||DIN-5 (keyboard), DE-9 (ErgoTrac)|
Model FKB8735-801R is documented separately.
FKB8745 Series contains tenkeyless keyboards. No model numbers are given in the datasheet.
FKB8750 and FKB8755 Series
FKB8750 is an ergonomic sub-series, where most of the keycaps of the alphanumeric cluster are angled inwards. The left-hand side (1–5, Q–T, A–G and Z–B) have keycap faces rotated approximately 12–13° clockwise, while the right-hand sides of these rows (6 to =, Y to ] etc) have faces rotated approximately 12–13° anti-clockwise. This can be seen for example in model FKB8754-501.
FKB8750 Series covers the pre-Windows 95 versions, and FKB8755 Series covers the Windows 95 versions. FKB8754-501 is an anomalous model, having Windows keys but being in a lower series number of FKB8754.
These are tenkeyless keyboards. All models are USB 1.1.
FKB8775 Series is an infrared keyboard and mouse set. An infrared receiver bearing two PS/2 plugs connects to the computer, and receives the signals from the wireless keyboard and mouse. The keyboard is derived from the FKB8725, and the mouse is series FID660. The keyboard offers 12 months of life on two AA cells, while the mouse offers 6 months on 2 AAA cells. The keyboard can operate up to angles of 120° horizontally and +45° to −5° vertically; the mouse has a larger horizontal range of 150°. The minimum ranges for the keyboard and mouse are 1 meter and 0.5 meters respectively. The mouse’s rated lifetime is given as curious 300 km.
FKB8775 Series was classified as “High” on the Fujitsu Takamisawa website in 1998.
The following documents are all archived from the current Fujitsu website, or from the Wayback Machine or similar. See the Fujitsu keyboards page for official copies where available.