Title: Hardware Installation Guide.pdf
12 VDC is available on reader ports (VIN is greater than or equal to 20 VDC).PASSVIN power is “passed through” to reader ports.J7 - Reader power selectTB8 OR TB9TB8 OR TB9GND DAT/D0 CLK/D1 BUZZER LED POWERGND DAT/D0 CLK/D1 BZR LED VOGND TR- (A) TR+ (B)POWERGND DAT/D0 CLK/D1VOData1/Data0 - Clock/Data Reader2-wire RS-485 Device37.3.1Open Supervised Device ProtocolOpen Supervised Device Protocol (OSDP) uses bi-directional communications between readers and the reader interface, providing constant monitoring of reader health, improved control of reader operation and configuration in real-time, and additional communications capabilities over a single connection, including biometric template download and LCD reader display control. For OSDP, set the baud rate to 9600 bps.revision 6 — 185LNL-4420 Intelligent Dual Reader ControllerWiring for OSDP readersTB8 OR TB9OSDPGROUND (Pin 1) DATA 0 (Pin 2) DATA 1 (Pin 3)GND DAT/D0 CLK/D1VO (Pin 6)VO