OSDP™ is an industry standard for communication between card readers and control panels, which is maintained by SIA - the Security Industry Association.
In 2020 the OSDP standard became part of the international IEC set of industrial standards as EN IEC 60839-11-5:2020.
OSDP™ is designed to replace legacy card reader interfaces like Wiegand, Clock/Data and current loop.
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