Access control systems rely on communication protocols between readers and controllers, with Wiegand and OSDP being the most common, but Wiegand is increasingly outdated due to its lack of encryption and vulnerability to interception and tampering. OSDP addresses these issues by providing encrypted, bidirectional communication and real-time device supervision, allowing controllers to monitor and manage readers more effectively. It also simplifies installation through more efficient wiring and supports longer communication distances and scalability. With stronger security, improved functionality, and compliance with modern standards, OSDP is the preferred choice for secure and future-ready access control systems.

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