Title: Hardware Installation Guide.pdf
Open 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.Wiring for OSDP readersOSDP DEVICESIGNAL GROUNDGND not connected - BZR not connected - LED CLK/D1 DAT/D0 VOTR+ TR-PowerREADER PORT62.1.6PowerThe Single Reader Interface Module requires a filtered 12 VDC ± 15% power source for its power input. The power source must provide isolated and non-switching, linear regulated DC power, with 125 mA current.Wire the power input with 18 AWG (minimum) twisted pair cable.332 — revision 6Hardware Installation GuideNotes:Be sure to observe polarity.Do not use an AC transformer to directly power the Single Reader Interface Module.