User's Manual

SEJIN ELECTRON, INC
you can have access to all the key functions of a full-sized keyboard
Using the Numeric Keypad
Press NumLK key to turn on the embedded numeric key pad. The numeric functions of the key pad are
Enabled and the NumLock LED turn on.
To turn the numeric key pad off, press NumLK again The Num Lock LED turn off.
5 WORKMANSHIP STANDARDS
5.1 Electrical Criteria
Electrical assemblies and components shall meet the requirements of commercial.
5.2 Keycap Cosmetics
The legend of keycap has to be printed with LASER cutting methodology by SEJIN standard and will
have to pass the Sejin standard abrasion test.
6 ELECTRICAL REQUIREMENTS
6.1 Operating voltage range
DC 4.0V ~5.25V
6.2 Operating current
Max 250mA, 5VDC
6.3 Insulation resistance
More than 100M ohm at 250V DC
6.4 Contact resistance
2KΩor less