4
1 Facts and Features
• Single mechanical keys with Gold Crosspoint
contacts (CHERRY ML modules)
• Designed for continuous use – more than
20 million key presses
• Robust and reliable with precise key actuation
• Integrated optical trackball plus 2 mouse
buttons
• Ultra slim – only 20 mm overall height
• Lightweight model
• Usable with standard drivers of the operating
system
• Ideal in places with restricted space and for
19" applications
2 Connecting the keyboard
Depending on the design, you can connect the
keyboard to the system with a PS/2 or USB
connection.
2.1 Connecting the PS/2 keyboard
1 Turn off the system.
2 Connect the purple PS/2 plug to the system
using the 6-pin PS/2 female connector for the
keyboard, which may be identified in purple.
3 Connect the green PS/2 plug to the system using
the 6-pin PS/2 female connector for the mouse,
which may be identified in green.
4 Turn the system on again.
2.2 Connecting the USB keyboard
1 Connect the USB plug to any USB connection on
your system. You can also use the USB
connection of a device that is connected to the
system.
2 Follow the instructions on the screen.
3 Using the integrated
numeric keypad
3.1 Special key
Fn
Due to the keyboard's space-saving design, the
numeric keypad has been placed in the area of the
main keys. For example, the functions "4", "5", "6"
and "+" are assigned to the keys
U
,
I
,
O
and
P
(identified by a frame).
If Num Lock is switched on (
Num
LED on), the
integrated numeric pad of the keyboard is
consciously
not
yet active. The numeric pad will be
active not until the
Fn
button is pressed and hold
down.
Example:
Fn
+
O
= "6"
Pressing the
Fn
and
O
in that order and holding
them down together causes screen output "6".
Fn
in combination with other keys switches
functions, each marked with a frame.
Example:
Fn
+
F12
= "Num Lock on/off"
Pressing the
Fn
and
F12
in that order and holding
them down together changes the Num Lock status.
3.2 Function level
Pad
For longer numeric entries, repeat the steps above
to activate Num Lock (
Num
LED on) and use the
key combination
Fn
+
F11
to turn on the function
level
Pad
(
Pad
LED on).
With function
Pad
on, the integrated numeric
keypad is permanently active.
The
O
key is permanently assigned the function "6",
for example.
4 Care and maintenance
The keyboard is maintenance-free. For occasional
external cleaning, a cloth moistened with water is
sufficient. Clean the ball in the trackball at regular
intervals with water and mild soap. Remove the ball
by gently pressing the trackball cover and at the
same time turning counterclockwise. Using
aggressive liquids such as alcohol or acids may
damage the ball and have a negative effect on its
functionality. Be careful when cleaning the optical
sensor (the transparent lens positioned under the
ball). Use cotton rods or similar. A flexible
protective keyboard membrane (WetEx
) to protect
the keyboard against dust, liquids and dirt is
available for purchase.
OPERATING MANUAL
CHERRY COMPACT KEYBOARD G84-4400 – Ultraslim Compact Keyboard with Optical Trackball
EN
Summary of Contents for G84-4400
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