The NXT-4D Xtreme 4 Door Controller is built for today's IT environments. With all Ethernet functionality built directly into the controller, Keri's proprietary MAC address allows for reliable hardware discovery and true 1 button autoconfiguration. By using an existing TCP/IP network, controller cabling costs can be eliminated, or by using inexpensive unshielded CAT5 cable if building a new network they can be reduced up to 50% over traditional hard-wired access systems. The NXT-4D is designed to be extremely intelligent with little reliance on network traffic for decision making allowing it to be extremely thrifty with any network's valuable bandwidth.

To expand the system's capabilities, up to four companion 4 x 4 Input/Output boards (NXT-4X4) can be added - one to each of the controller's RS-485 trunks (busses). Customers can choose between Keri's new line of highly secure, 4-wire NXT Proximity Readers with reader supervision, and any reader with a standard Wiegand output or Keri's MS Series Proximity Readers via the NXT-RM Reader Interface Module. To manage the system, Doors NetXtreme software has much of the same look and feel as Keri's acclaimed original Doors software, but with the added functionality of Client/Server architecture.

• 4 Door Controller for Keri's Doors NetXtreme product line
• On-board TCP/IP - no network adapters required
• Reduces controller cabling cost up to 50% over RS-485, Current Loop or other traditional networking schemes by allowing unshielded CAT5 cable
• Utilize existing LAN/WAN/Ethernet or pull your own dedicated CAT-5 Network
• Embedded MAC Address for one button Auto-Configuration
• Standard 4 PIN Block and RJ Jack built-in for network connection
• Re-assignable Inputs and Outputs
• Flash Memory for easy firmware upgrades
• Quick Disconnect Connectors
• Flash Memory for easy firmware upgrades
• Up to 256 Controllers (1024 doors) and 4096 auxiliary I/O points per network
• 50,000 Cardholders, 10,000 Selectable Event Buffer per controller
• Built-In Tamper Input
• Locking Metal Enclosure (optional without)