Linear EXN-4M eMerge Elite 4-Door Expansion Node with Reader Ports, Inputs, Output Relays and Optional PoE

Protect and scale your facility’s access control with the Linear eMerge Elite EXN-4M 4-Door Expansion Node. Designed as a reliable door expansion module for commercial and institutional environments, this Linear unit extends an eMerge Elite system by providing four reader ports, eight supervised inputs and eight output relays—so you can add readers, connect sensors and control locks without swapping primary controllers. Housed in a lockable metal cabinet with an integrated tamper switch and available with optional PoE, the EXN-4M minimizes field wiring, supports faster deployment and improves uptime for critical security operations. IT and security teams benefit from straightforward integration with existing access control software, centralized monitoring and seamless interoperability with surveillance and alarm systems. Whether you’re upgrading a campus, healthcare facility or multi-tenant building, this expansion node delivers hardened performance and flexible I/O for automated locking, event-triggered outputs and real-time security monitoring. Add the EXN-4M to your eMerge Elite deployment to expand capacity and simplify management—contact your Linear dealer to specify this access control expansion for your next security upgrade.

• Expand multi-door access quickly: adds four reader ports to extend your eMerge Elite system without replacing controllers
• Simplify installation and networking with optional PoE support and consolidated wiring for readers, inputs and relays
• Improve on-site security and monitoring with 8 supervised inputs and 8 output relays for alarms, locks and automation
• Rugged, lockable metal enclosure with integrated tamper switch protects electronics and reduces nuisance alarms
• Scalable, enterprise-ready expansion that integrates with existing access control, security and surveillance infrastructure