Video: What exactly is OSDP?

Video: What exactly is OSDP?

“Hey Maarten, what exactly is OSDP?”

OSDP is an acronym for Open Supervised Device Protocol. OSDP is an access control communications standard developed by the Security Industry Association (SIA) to improve interoperability among access control and security products. The current major version is version 2. It is most commonly used to connect readers to access panels. The standard is based on RS-485. Compared to Wiegand connections, major advantages are: increased security (encrypted communication channel), better manageability and longer cable lengths. I personally think it is a great initiative from the consortium behind it. Read about it here:… vendor Cypress is an advocate of OSDP. They sell great integrations solutions for OSDP, including an OSDP Convertor.


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3 thoughts on “Video: What exactly is OSDP?

  1. […] Their readers are capable of supporting all current RFID technology standards in the industry, including HID Prox, MIFARE Classic and MIFARE DESfire and Legic. Third Millennium readers also supports multiple communication interfaces, including OSDP. […]

  2. […] installations were also exhibiting at IFSEC. Paul Ahern was there and spoke to many people about OSDP. One thing that is often overlooked is that OSDP can also be used on an IP-netwerk and not only on […]

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