The RBH AX-NURC-2004 is a compact 4-door reader expansion controller designed for Axiom systems, offering a smaller footprint than the AX-NIRC-2000 while maintaining dependable performance and flexibility. Compatible with AxiomXa and AxiomV environments, it supports four readers or keypads with LED and buzzer control, up to five simultaneous card formats per panel, and all Wiegand-compatible readers. The controller also features supervised inputs, programmable outputs, and supervised RS-485 communication for reliable system connectivity. With flexible mounting options, practical expansion capability, and support for fail safe or fail secure operation, the AX-NURC-2004 is a strong choice for organizations seeking efficient, space-conscious access control expansion within their RBH infrastructure.