Security Industry Association Releases Version 2.2 of SIA OSDP Standard Share Article The newly updated access control communications standard improves interoperability and security and expands support for smart card applications. “SIA OSDP version 2.2 is a culmination of all of the work done over the past five years to prepare the protocol for international standardization and fixes the majority of common implementation challenges faced by implementers of version 2.1.7." – Steve Rogers, co-chair, SIA OSDP Working Group SILVER SPRING, Md. (PRWEB) December 15, 2020 The Security Industry Association (SIA) has released version 2.2 of SIA Open Supervised Device Protocol (OSDP), an access control communications standard developed by SIA to improve interoperability among access control and security products.