Security Door Controls UR2-4 Universal Controller with 2 Fused SPDT Outputs and 2 Non-Fused SPDT Outputs

The Security Door Controls (SDC) UR2-4 Universal Door Controller is a programmable microprocessor-based access control module designed to simplify the management of multi-door locking, monitoring, and security applications. It provides centralized control for door hardware, access control systems, monitoring contacts, and peripheral devices while reducing wiring complexity and installation time.

The UR2-4 supports flexible relay configurations with two fused SPDT outputs and two non-fused SPDT outputs, each capable of being configured as a 12/24VDC wet output or dry contact relay. Its programmable logic allows the controller to support applications such as door lock control, airlock/interlock systems, mantrap configurations, shared bathroom controls, and other specialized access control requirements.

Designed for commercial access control installations, the UR2-4 provides reliable control of electrified locks, magnetic locks, strikes, exit devices, and related security equipment. Its compact design and onboard logic help simplify troubleshooting and eliminate the need for multiple standalone relays.

Features:

• Use the same controller for virtually all multi-door applications
• Centralized wiring for all locks, access controls, monitoring contacts and peripheral equipment
• On board logic reduces need for communicating door and lock contacts and standalone relays
• Reduced wiring, easy troubleshooting