C4 Series 1/2/4-Door RFID Access Control Panel – 30,000 Users

C4 Series Multi-Door RFID Access Control Panel (C4-100 / C4-200 / C4-400)

Take full command of your facility's entry points with the C4 Series Door Lock Controller Panel. Designed for small to large installations alike, this versatile TCP/IP network access control system supports 1, 2, or 4 doors in a single compact unit — making it an ideal choice for offices, warehouses, schools, apartment complexes, and commercial buildings.

Why Choose the C4 Series Access Control System?

• Flexible Door Coverage: Choose from single-door (C4-100), double-door (C4-200), or four-door (C4-400) configurations to match your exact security layout.
• Large User & Record Capacity: Manages up to 30,000 cardholders and stores 100,000 access records — suitable for high-traffic environments.
• Multiple Identification Methods: Supports ID cards, IC cards (RFID), and PIN/password entry for flexible, layered access control.
• TCP/IP LAN Connectivity: Network-enabled via standard Ethernet for easy integration into existing IT infrastructure and remote management.
• Wiegand Input/Output: Compatible with a wide range of third-party readers via standard Wiegand interface, ensuring maximum versatility.
• RS-485 Interface: Supports daisy-chain connections for expanded system deployments.
• Embedded Linux OS: Runs on a reliable embedded Linux system with 256MB Flash storage for stable, maintenance-free operation.
• ZKTeco Software Compatible: Works seamlessly with ZKAccess 3.5 and E-ZKeco Pro (LAN) software for centralized management and reporting.
• Comprehensive I/O Interfaces: Includes Lock Control, Exit Button, Door Contact Input, Alarm Input, Alarm Output, RS-485, Wiegand, and Network Interface ports.

Key Specifications

Who Is This For?

The C4 Series is perfect for IT administrators, security integrators, facility managers, and business owners who need a scalable, network-managed access control solution without the complexity or cost of enterprise-grade systems. Whether you're securing a single office door or managing entry across an entire floor, the C4 Series scales to meet your needs.

Learn More About Physical Access Control Standards

For guidance on physical security and access control best practices, visit the U.S. Cybersecurity & Infrastructure Security Agency or review general security infrastructure guidance at NIST Cybersecurity Resources.

Frequently Asked Questions

Q: What is the difference between the C4-100, C4-200, and C4-400 models?

A: The C4-100 is a single-door access control panel, the C4-200 manages two doors, and the C4-400 controls up to four doors simultaneously. All three models share the same 30,000-user card capacity, 100,000-record storage, and TCP/IP connectivity — the only difference is the number of doors each unit supports.

Q: Is this access control panel compatible with ZKTeco software?

A: Yes. The C4 Series is fully compatible with ZKAccess 3.5 and E-ZKeco Pro (LAN) software, enabling centralized management of users, schedules, access levels, and event logs from a networked PC.

Q: What types of cards and readers are supported?

A: The C4 Series supports ID cards, IC cards (RFID), and password/PIN-based access. It also features a standard Wiegand interface, making it compatible with most third-party RFID card readers available on the market.

Q: Can this controller be integrated into an existing network?

A: Absolutely. The panel connects via standard TCP/IP over LAN, so it integrates easily into any existing Ethernet network. RS-485 support also allows for expanded deployments with additional devices.

Q: What alarm and monitoring features are included?

A: The C4 Series includes dedicated Alarm Input and Alarm Output ports, Door Contact Input for door status monitoring, and Exit Button connections — giving you comprehensive real-time monitoring and event-triggered alerting capabilities.