Model Number: KB840A
Key Specifications/Special Features:
Keyboard:Hardware system: PC AT keyboard portOperation system: All OS supporting PC type keyboardSwitch type: cherry mechanical key switchKeycap type:Relegendable key pitch: 19.05mm
Key stroke: 4mm
Operating force: 60+/-20g
Key switch contact resistance: less than 200m ohms, typically25m ohms
Key switch lifetime: 20 million operations per key
Power source: keyboard port power 5VDC
Power consumption: 5VDC per 100mA (Min)
External serial port: RS-232 5VDC per 200mA output
Scan code memory: 333 bytes per key
Magnetic stripe reader:
ISO standard, single track, dual tracks or three tracks