User's Manual

SEJIN ELECTRON, INC
Standard: The keyboard operates normally after the test.
7.7 High Temperature Test
Check Method: Leave for 96hours under +70℃.
Standard: The keyboard operates normally after the test.
8 USB Keyboard interface
The keyboard comprises the key switch section and signal processing circuit.
The keyboard cable connects to the system with a USB connector.
The following table shows the pin configuration and signal assignments.
Contact Number Signal Name
1 VBUS
2 D-
3 D+
4 GND
Shell
Shield