OSDP v2.2 | Open Supervised Device Protocol Standard Version 2.2

Scope and Benefits

This document specifies the Open Supervised Device Protocol (OSDP) for electronic access control systems. This includes communication settings, commands and replies between the ACU and the peripheral devices.

This document applies to physical security only. Physical security prevents unauthorized personnel, attackers or accidental intruders from physically accessing a building, room, etc.

This document does not in any way limit a manufacturer to add other commands to the protocol defined here.

Sponsoring Subcommittee or Working Group

OSDP Technical Subcommittee

Year Published




Document Type


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