Cornell ES-4808S Expansion Switch for Cornell Digital Area of Refuge System

Designed to expand and simplify emergency communications, the Cornell ES-4808S Expansion Switch extends your Cornell digital Area of Refuge system to cover large facilities and multi-building campuses. As an Area of Rescue/Refuge command unit accessory, the ES-4808S enables scalable, networked monitoring and secure emergency call routing by supporting up to 35 expansion switches and a total of 255 call stations. The unit uses common Cat5e cabling for control panel and call station connections, reducing installation complexity and lowering material costs. Built for reliability, the switch operates on 24V DC and is rated for indoor, non‑condensing environments from 50–120°F, ensuring consistent performance in mechanical rooms or security control centers. Its surface‑mount, compact 15" x 18" x 4" footprint integrates cleanly into Area of Rescue Command Units and infrastructure racks. Ideal for architects, facility managers, and security integrators, the ES-4808S supports streamlined surveillance and monitoring workflows while improving occupant safety and code-compliant emergency response. Contact your Cornell distributor or spec the ES-4808S to expand your Area of Refuge system today.

• Scales Area of Refuge systems to support up to 255 call stations by linking up to 35 expansion switches, letting you expand emergency communication coverage without replacing the core panel.
• Reduces installation time and cost with standard Cat5e cabling for control panel, switch and call station connections, simplifying networked monitoring and integration.
• Delivers dependable performance with 24V DC power and an indoor non‑condensing 50–120°F rating for consistent operation in building control rooms and secure locations.
• Flexible connectivity supports Area of Rescue Call Stations, other Expansion Switches and Remote Control Panels for streamlined system architecture and easier maintenance.
• Compact surface‑mount design (15" W x 18" H x 4" D) conserves wall space and fits neatly into existing Area of Rescue Command Units and security closets.