Product Description
. . . . . The S300-DIN-RDR2S module supports one or two doors per module. It uses standard RS-485 communications and can interface with the following controllers: CK722, CK721-A,, CK721, CK720/CK705.
The S300-DIN-RDR2S, also referred to as the RDR2S, provides the ability to configure supervised 4-state inputs and unsupervised 2-state inputs. A total of 10 inputs can be configured as supervised 4-state inputs (normally open or normally closed), or 2-state inputs. When interfacing to a single door, the unused points can be configured as general purpose input/output (I/O) points, possibly eliminating the need to purchase additional I/O modules for certain installations. The RDR2S provides power for card readers and door locking hardware.. Johnson Controls. Johnson Controls. S300-DIN-RDR2S.