Farpointe Data will exhibit how the Security Industry Association’s (SIA) Open Supervised Device Protocol (OSDP) helps system integrators improve interoperability among mobile access control and security products at PSA TEC in Denver, May 3-6. The standard also applies to peripheral devices such as card readers and other devices at secured access doors/gates and their control panels. OSDP importantly offers the option of secured, encrypted communications between reader and controller.