MR-50 Series 3 is a single door sub-controller dedicated to individual door oversight and provides of all the I/O needed for controlling a single door. Each MR-50 Series 3 sub-controller connects one card reader, two general-purpose input monitor points and two control relays for access control and security monitoring through an Authentic Mercury intelligent controller. The MR-50 Series 3 sub-controller has the same reliable interface and identical footprint as the Series 2, MR-50, which enables seamless upgrades for existing deployments. Features: Multi-facility code support. Multi-reader technology support. AES 128/256 bit data encryption. UL 294 recognized, CE compliant, FCC, RoHS. RS-485 host connectivity. Supports OSDP, OSDP Secure Channel, FICAM government profiles, keypads, biometric readers, Wiegand, clock and data, magnetic stripe, F/2F and supervised F/2F reader technologies.