idely used in the following fields: -Automatic Teller Machines (ATMs) -Self-Service Terminals -Info- Kiosk -Unattended Payment Solutions petrol Fore Court Payment ticket Vending Machines kiosk Solutions parking Venues BASIC SPECIFICATIONS Input keys: 20keys Size: 120x74mm 120x90mm(S-6120B) Key life span: > 2,000,000 times Key pressure: 2-3N Key travel: 0.45mm Protection level: IP65 static / IP54 dynamic Key graphics: laser engraved lettering and strong painting Power Supply: DC5V+10% Communication interface: PS2 , USB , RS232 Power consumption: <0.5W (dynamic), <0.2W(static) Extendability: external 2 (4*1) funciton keys Reliability MTBF: >20,000H MTTR: <30 min