ZK Access Systems are built on flexible, open technology to provide management, real-time monitoring , and control of your access control systemall from a browser, with no additional software to install. Our secure Web-hosted infrastructure and centralized online administration reduce your IT costs and allow you to easily manage all of your access points in a single location. C3-400 versatile design features take care of present and future needs with ease and efficiency. It is one of the most rugged and reliable controllers on the market, with a multitude of built-in features. The C3-100 can communicate at 38.4 Kbps via RS-485 configuration or Ethernet TCP/IP networks. It can store up to 30,000 cardholders. SDK (Software Development Kit) is available for the customer to integrate the controller into existing access control software or to develop new software.

.Multiple hardware protection measure
There are over-current protection, over-voltage protection, reversal protection for the power supply and all the input and output terminal.
.Integration with Other Security Systems
C3-400 can be integrated with other security systems such as CCTV, fire alarm, BAS(building automation system) and other systems to configure total security system.
.Supports different wiegand reader
wiegand format, and can connect to different reader, including ID card reader and card reader
.Input/Output Ports to Control Doors
Connect with variety of sensors, alarms, exit buttons, electric lock and other devices.
.Variety of Communication Function
Using either serial or TCP/IP communication, it provides reliable network system
.B/S structure software
It is easy to manage the system by browser from client PC. There is no need to install software on each client.
.Normal open after first punch card can be setup
.Real-time Monitoring of Door status
Using the management software, it allows real-time monitoring and control of door opening and closing of the whole system.
.Simple Access Control System Configuration
.Interlock function
Link different doors with special logic that one door is Open, others should be closed.
.Multi-card operation
This function is used to manage visitors or to manage some special high secure place. The doors are opened when appointed number registered cards are read together.
.Anti-Passback
.Duress Mode
The system integrator can use the SDK to integrate the hardware into their existing access control software system or to develop a new software.