JOHNSON CONTROLS S300-DIN-RDR2SA TWO-DOOR ACCESS CONTROL INTERFACE MODULE

JOHNSON CONTROLS S300-DIN-RDR2SA TWO-DOOR ACCESS CONTROL INTERFACE MODULE is a DIN rail mounted hardware for S300 series building access control systems. This interface module supports two access readers and door monitoring circuits for commercial building security management. The access control system uses this unit to process Wiegand signals, door status and request-to-exit inputs. The S300-DIN-RDR2SA unit features RS485 bus communication and supervised input channels for tamper and power failure detection. This Johnson Controls module is widely used for access control cabinet upgrade and spare replacement.

The interface module provides SPDT relay outputs for door strike and alarm shunt control. The access control platform connects card readers and door sensors via the S300-DIN-RDR2SA hardware. This interface module adopts DIN rail mounting design for simple installation inside control enclosures. The access control system resumes door management functions after installing the S300-DIN-RDR2SA module.

The interface module of S300-DIN-RDR2SA offers 12VDC power supply for connected card readers. The access control spare supports automatic baud rate detection for stable RS485 bus communication. This interface module can monitor door contact and tamper signals to improve site security level. The S300-DIN-RDR2SA access control component is a critical spare for commercial building security system maintenance.