Keri Systems NXT-4D 4-Door NXT Controller with Keri firmware

Built for modern IT-driven security environments, the Keri Systems NXT-4D 4-Door access controller delivers reliable, scalable access control with minimal cabling overhead. As a Keri Systems access control panel with on-board TCP/IP and an embedded MAC for one-button auto-configuration, the NXT-4D reduces installation time and network complexity while supporting up to 4 doors and up to 50,000 cardholders per controller. Its intelligent on-board processing limits network traffic and ensures fast local decision-making for improved monitoring and incident response.

The NXT-4D easily integrates with Keri proximity readers, standard Wiegand devices, and Doors NetXtreme management software, and can be expanded with companion NXT-4X4 I/O boards to grow with your site. Use your existing LAN/WAN or inexpensive CAT‑5 cabling to cut wiring costs up to 50% versus traditional schemes, and deploy secure, tamper-aware access control in offices, campuses, or multi-site facilities. For streamlined security, surveillance integration, and centralized monitoring, choose the NXT-4D — contact us to discuss configuration or request a quote.

• Simplifies networked access control with built-in TCP/IP and an embedded MAC for one‑button auto-configuration, saving installation time
• Cuts cabling costs up to 50% by using existing LAN/WAN or unshielded CAT‑5, reducing labor and materials on new builds
• Manages up to 4 doors per controller with support for 50,000 cardholders and expandable I/O for larger sites
• Minimizes network impact with intelligent local decision-making for reliable security monitoring and faster event response
• Integrates with Keri proximity readers and Doors NetXtreme software for centralized surveillance, logging, and user management