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www.indukey.com Technical Information
Key Technology & Mounting Types
Phone: +49 (0) 37468 - 650-0 | info@indukey.com
Short travel keys
Mechanical switch elements used in industrial keyboards with a key travel of
0.3 mm and an actuation force of 3 N. These rugged keys are rated for up to 3
million operations per key. Short travel keys are used in all models of the TKS
series as well as in special models of other series.
Gold plated domes
Mechanical switch elements that – as slightly curved metal domes – make contact
with the PCB when being actuated. The advantage of the metal domes is their
low height. This allows for a very flat keyboard design. The keyboards can be
installed in extremely flat panels.
Flexible membrane keys
Flexible
membrane keyboards are equipped with polyester foils printed with
conductive silver paste. The upper and lower switch membranes are separated
by means of spacer foil. A palpable key separation due to rim or key embossing
ensures a good tactile feedback.
Metal keys
Metal keys which are primarily used for the TKV series are actually silicone keys.
The difference is that silicone keys are provided with metal key caps which
cannot be levered out. This is ensured by a brim on the bottom side of the cap,
which anchors the cap firmly to the front panel.
Silicone keys
Silicone keys have carbon pills on the bottom side that make contact with the
PCB after being actuated. The keys provide a pleasant tactile feedback and a
very low noise level. Silicone keys are available in different shapes, colours and
with different actuation forces and key travels. In large quantities they are very
cost-efficient.
Long travel keys
They are used as mechanical switch elements in conventional PC keyboards.
Long travel keys have a key travel of more than 3 mm. They require an actuation
force of only 0.6 N. These keyboards are suited for the input of large amounts
of data.
Housing version
Desktop versions can be used as so-called standalone versions. They
are suited for places where a stable and even surface is available.
Due to the plastic knobs on the bottom side of the device, they
are skid-proof. One of the advantages of desktop versions is their
application flexibility. They can be connected to systems with
standard interfaces (PS/2, USB) without any problems.
Front mounted version
The most frequently used integration method for keyboards and
cursor controls is the so-called MODUL variant. The studs on the rear
side allow a comfortable installation into almost every system of any
type. Due to the seals (included in delivery) lying underneath, a high
IP protection level is guaranteed.
Rack mounted version (front panel)
Front panel versions are mainly used for integrating data input
devices into 19-inch racks or 19-inch drawers. The mounting holes
on the sides of the front panel allow a comfortable installation of
the device. The keyboards are standardized according to the RU
(Rack units; 1 RU = 44.45 mm) of the 19“ system (1” = 25.4 mm).
Drawer version
In the product line of foil covered industrial keyboards, so-called
keyboard/drawer systems are available. Due to their compact size
they are suited for the application in 19-inch mounting systems.
The low mounting height of 1 RU (1 RU = 44.45 mm) requires only
little space. The extracted drawer has an angle of about 15 degrees
allowing for comfortable operation in standing position.
VESA version
The mounting of electronic devices to the wall, the ceiling or to
panels is subject to the so-called VESA standard. The back side of
the device is equipped with four insert nuts for installing the bolts.
The distance between the mounting holes corresponds to a standardized
matrix (usually 75 x 75 mm). This mounting method includes
the assembly and system integration of desktop devices.
