Yale Assure Lock YRC256 Installation And Programming Instructions page 40

Command Class Application Status, Version 1 ............................................. 28
Command Class Transport Service, Version 2 .............................................. 28
Command Class Supervision, Version 1 ...................................................... 28
Command Class Indicator, Version 3* ........................................................ 28
Command Class Basic, Version 2* ............................................................. 29
* This command class requires security.
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