CSSR Contactless Mechanical Hall Effect Keyboard CONSUL 262.3 1989 RARE ⌨️ 💻

Description

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CSSR Contactless mechanical Hall-effect keyboard CONSUL 262.3 1989 RARE
Contactless alphanumeric Hall-effect keyboard CONSUL 262.3
Keyboards of type CONSUL 262.3 interconnect with terminal CM 7209 / MERA 7953 Z
Number of keys: 81
Dimensions: 49 x 23 x 4.5 cm (19" x 9" x 1.77").
Weight: 1.8 kg (about 4 lbs).
Manufactured by Zavt, Koncern, Československá Zbrojovka Brno, the Czechoslovak Socialist
Republic in 1989 (now, Czech Republic).
Condition: excellent used condition. Not tested.
The keyboard’s feature is Hall effect switch technology applied to keys.Hall effect keyboards use magnets and Hall effect sensors instead of an actual switch. When a
key is depressed, it moves a magnet, which is detected by the solid-state sensor. These keyboards
are extremely reliable, and can accept millions of keystrokes before failing. They are used for
ultra-high reliability applications, in locations like nuclear power plants, nuclear submarines or aircraft cockpits. They
are also sometimes used in industrial environments. These keyboards can be easily made completely
waterproof. They also resist large amounts of dust and contaminants. Because a magnet and
sensor are required for each key, as well as custom control electronics, they are very expensive.
I have a pdf file with this keyboard documentation (operating instructions manual in
Russian, 17 pages), including electrical schematic diagrams. It will be provided per your request.