Open Supervised Device Protocol (OSDP) lets the panel watch the reader and the wiring.
The reader, controller, and wiring must all support Open Supervised Device Protocol (OSDP) on the Transmitter Solutions job.
A supervised reader-to-panel protocol. Use it when the job wants a newer path than Wiegand.
Open Supervised Device Protocol (OSDP) lets the panel watch the reader and the wiring.
The reader, controller, and wiring must all support Open Supervised Device Protocol (OSDP) on the Transmitter Solutions job.
Source: Transmitter Solutions product training