Instructions and Safety Information
AK-4400-T series
The corded keyboard AK-4400-T is a high quality, highly reliable keyboard with
Trackball.
It is particularly designed for the use in industrial and office.
Delivery Content:
1x Corded Keyboard
1x User Manual
Manufacturer:
Cherry Digital Health GmbH
Cherrystraße 2
D-91275 Auerbach/OPf.
Legal information:
The product complies with the Directive EMC 2014/30/EU. The full text of the EU
declaration of conformity is available at the following internet address:
http://www.cherry.de/compliance
Electrical and electronic equipment (EEE) is marked with the symbol of the
crossed-out wheeled bin indicating the requirement not to dispose of waste
electrical and electronic equipment (WEEE) as unsorted municipal waste and to
collect such WEEE separately.
Final users of WEEE from private households shall be able to return WEEE as per
EU country local regulations into established collection facilities free of charge.
Please consult your municipal waste department for detailed advice on separate
collection of WEEE.
The packaging material used with this product is identified as PAP-20 and LDPE-
04. Please follow the rules of your local community on collection of used
packaging.
Web: www.cherry.de
Tel: +49 (0) 9643-2061-100
Cleaning the Trackball
1
Open Trackball-Unit
Turn the trackball ring, e.g. with tweezers, fixed on both
openings on the ring, counterclockwise
2
Clean Trackball & lens
After opening the module, clean the trackball and the
optics (lens) underneath it. Use a microfiber cloth or a
comparable cleaning cloth for this purpose.
3
Reassemble
Reassemble the trackball mount by turning it clockwise
Trackball-Unit
until you hear a click.
Frequently Asked Questions (FAQ):
How do I enable or disable the emulated number keypad integrated in the keypad?
The keyboard has the feature "emulated numberpad" which integrated in the alpha-
numeric key layout. The user can activate or deactivate the feature with the key
combination Fn and F11 (NumL).
My keyboard is not recognized when plugged in!
Remove the USB plug, restart the PC and make sure that you have the rights to install a
USB device (administrator account). Then plug in the USB connector again, preferably
into a different port than the first attempt. If you still have problems, please contact us.
Specification:
Compatibility
All operating systems supporting USB or PS/2
Keyboards
Temperature Range
Storage: -20 °C to +60 °C
Operation: 0 °C to +50 °C
Supply Voltage
5 V +/-10% through USB
Current Consumption
Max. 45 mA (USB: low power device)
Connector
USB Type A, PS/2 Mini-DIN
Dimensions
Approx. 293 mm x 168 mm x 34 mm
Interface
USB 2.0 FS, PS/2 (Keyboard and mouse separately)
Key Switch Technology
Scissor Balancing Technology
Key Travel
Approx. 2,5 +/- 0,5 mm
Key Actuation Force
Approx. 60 g
Weight
Approx. 600 g (without packaging)
Trackball
Integrated: PS/2 plug through 2 connectors resp. 1
USB connector
Optical Sensor Resolution
1000dpi (Ø 14mm)
Agency Approvals / Tests
CE, RoHS
*No Medical Device acc.to Regulation (EU) 2017/745
All rights reserved. Copy or duplication, except for personal use, not permissible without specific prior written consent by Cherry Digital
Health GmbH. Contents are subject to change without notice. Errors excepted. Copyright by Cherry Digital Health GmbH.
Version 20241002