Keri Systems NXT-4D-UL 4-Door / 8-Reader Controller for Keri's NXT Product Line

Designed for modern networked security environments, the Keri Systems NXT-4D-UL 4-Door / 8-Reader access control controller delivers reliable, cost-effective access control while simplifying deployment and management. With onboard TCP/IP Ethernet and an embedded MAC address for true one-button auto-configuration, the NXT-4D-UL reduces setup time and eliminates the need for separate network adapters. Support for existing LAN/WAN or purpose‑built CAT-5/6 cabling cuts infrastructure costs by as much as 50% compared to traditional hard-wired systems.

The controller intelligently manages up to 4 doors (8 readers) and uses local decision-making to preserve network bandwidth—ideal for security, surveillance, and monitoring integrations. UL certification and environmentally friendly design ensure dependable operation in commercial, education, healthcare, and multi-tenant applications. Re-assignable inputs/outputs and quick-disconnect connectors make field changes and maintenance straightforward.

Choose the NXT-4D-UL to streamline your access control deployment, enhance perimeter and interior security monitoring, and reduce Total Cost of Ownership. Contact sales to request a quote or specify this controller for your next access control project.

• Reduce installation costs by using existing LAN/WAN or inexpensive CAT‑5/6 cabling for up to 50% savings over traditional wiring
• Built-in TCP/IP Ethernet with embedded MAC allows one-button auto-configuration to speed deployment and minimize IT overhead
• Manages up to 4 doors / 8 readers, providing scalable access control for small to midsize facilities
• Intelligent local decision-making minimizes network bandwidth use and keeps security operations resilient
• Re-assignable inputs/outputs and quick-disconnect connectors simplify field changes and ongoing maintenance