User's Manual

SEJIN ELECTRON, INC
SEJIN confidential - Copyright© Sejin electron, Inc. 2009.
This Document contains proprietary to Sejin Electron, Inc. Use or disclosure without written
permission from an officer of Sejin is expressly forbidden.
Document number : R-FB-0
Page 2/13
Issued date : 2009-02-11
Contents
1 Revision History...............................................................................................................4
2 Scope.................................................................................................................................4
3 Features.............................................................................................................................4
4 Mechanical Specifications................................................................................................4
4.1 General......................................................................................................................................... 4
4.2 Key switch Operation................................................................................................................... 4
4.3 Operating Region ......................................................................................................................... 6
4.4 Key-top Deflection....................................................................................................................... 6
4.5 Operating feeling.......................................................................................................................... 6
4.6 Key-top Height Variation............................................................................................................. 6
4.7 Tilt................................................................................................................................................6
4.8 Key-top Alignment....................................................................................................................... 7
4.9 Rotational Alignment................................................................................................................... 7
4.10 End stroke strength....................................................................................................................... 7
4.11 Key-top pull out force .................................................................................................................. 7
4.12 Information for serial number on the back label .......................................................................... 7
5 Electrical Specification.....................................................................................................8
5.1 Power supply voltage ...................................................................................................................8
5.2 Power supply current consumption..............................................................................................8
5.3 Insulation resistance..................................................................................................................... 8
5.4 Chattering and bounce.................................................................................................................. 8
5.5 Cable length ................................................................................................................................. 8
5.6 Contact terminating assignment. .................................................................................................. 8
5.7 USB Soft Ware I/F....................................................................................................................... 8
5.8 USB HUB..................................................................................................................................... 9
6 Environmental Characteristic ...........................................................................................9
6.1 Operational ambient temperature and humidity........................................................................... 9
6.2 Storage ambient temperature and humidity.................................................................................. 9
7 Environmental Performance.............................................................................................9
7.1 Shock............................................................................................................................................ 9
7.2 Vibration ......................................................................................................................................9
7.3 Heat Cycle Test.......................................................................................................................... 10
7.4 Key life Test...............................................................................................................................10
7.5 Low Temperature Test ............................................................................................................... 10
7.6 High Temperature Test............................................................................................................... 10