جهاز حضور وانصراف ZK F21 time attendance and access control terminal applying SilkID Technology
يشير F21 إلى جهاز طرفي بيومتري مستقل من إنتاج شركة ZKTeco. يعتبر جهازًا متكاملًا يشتمل عادةً على ما يلي:
شاشة عرض ملونة من نوع TFT LCD.
جهاز استشعار بصمات الأصابع للتحقق.
قارئ بطاقات (غالبًا ما يدعم بطاقات الهوية أو بطاقات IC).
خيارات اتصال مثل TCP/IP و RS485 و USB.
ميزات للتحكم في الوصول (أقفال الأبواب، وأجهزة الاستشعار، وأجهزة الإنذار) وتتبع أوقات الحضور والانصراف.
F21:
The "F21" refers to a specific standalone biometric terminal from ZKTeco. This is a more complete device that typically includes:
A TFT LCD color screen for display.
A fingerprint sensor for verification.
A card reader (often supporting ID or IC cards).
Connectivity options like TCP/IP, RS485, and USB host.
Features for access control (door locks, sensors, alarms) and time & attendance tracking.
The Relationship (or Lack Thereof):
The ZK8500R and the F21 are different types of ZKTeco products that serve related, but distinct, purposes.
ZK8500R is primarily an enrollment and identification peripheral device. You use it with a computer to register users or read card numbers for a larger system. It's not a standalone access control or time & attendance machine.
F21 is a standalone terminal device. It can perform fingerprint verification and card reading directly on the device itself, manage access control, and record time and attendance without necessarily needing to be constantly connected to a computer.
