Keri Systems NXT-2D-MSC Door / 4-Reader NXT Controller with Mercury Powered Option and Enclosure

2-Door, 4-Reader access control controller with built-in TCP/IP connectivity. Eliminates or reduces controller cabling costs by leveraging existing CAT5 Ethernet networks—up to 50% savings versus traditional hard-wired systems. Features embedded MAC addressing for reliable hardware discovery and one-button autoconfiguration. Supports up to two 4X4 Input/Output expansion boards via RS-485 trunks. Compatible with 4-Wire Proximity Readers with reader supervision, standard Wiegand output readers, or MS Series Proximity Readers via the RM3 Reader Interface Module. Manages 2 doors with In/Out capability. Includes quick disconnect connectors, re-assignable inputs and outputs, 48,000 cardholder capacity, 10,000 event buffer, and 128-bit encryption. Designed for intelligent, bandwidth-efficient operation with minimal reliance on network traffic for decision-making. Managed via Client/Server software with familiar interface and advanced functionality.