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FAQ

Which reader protocols, locking hardware, and host management platforms work with the C3-100?

Answer:
The C3-100 is compatible with standard 26-bit Wiegand RFID readers (125 kHz EM, 13.56 MHz Mifare, HID Prox) and supports fail-safe electromagnetic locks, drop bolts, and electric strikes via Form-C dry or wet relay wiring. It connects over IEEE 802.3 TCP/IP or RS-485 to ZKAccess 3.5 software.

The ZKTeco C3-100 offers broad hardware and software interoperability for access control system design:

  • Reader Technologies: Supports 2 reader ports communicating via industry-standard SIA 26-bit Wiegand protocol. Compatible reader types include 125 kHz EM-Proximity, 13.56 MHz Mifare, HID Prox, iClass, PIN keypad readers, and biometric terminals outputting Wiegand data.
  • Electronic Locking Devices: Form-C relay contacts support both dry (voltage-free) and wet contact configurations. Compatible with fail-safe electromagnetic (EM) locks, fail-secure electric strikes, and motorized drop bolts. When switching inductive DC loads, installation of a parallel reverse-biased flyback diode (such as FR107) across the lock terminals is recommended to suppress back-EMF spikes.
  • Host & Network Interfaces: Connects to security management networks via native 10/100 Mbps TCP/IP Ethernet (IEEE 802.3) or daisy-chained RS-485 serial communication buses (with 120-ohm end-of-line termination).
  • Management Software: Seamlessly managed via ZKAccess 3.5 software and server-based ZKTeco access control management suites featuring auto-discovery network tools.