What is the function of an access control interface in a gate system?

• A. It connects external access systems (card readers, intercoms, software) to gate control to authorize/deny entry.
• B. It powers the gate motor directly.
• C. It stores maintenance logs.
• D. It calibrates the frequency of movement.

Answer: (B)

An access control interface serves as the bridge between external authentication devices and the gate’s control logic. It takes signals from card readers, intercoms, or software, interprets whether the person is allowed access, and passes that authorization to the gate controller to open or deny entry. It ensures compatibility and proper timing between the outside systems and the gate, so the gate reacts correctly to verified requests. It doesn’t power the motor, store maintenance logs, or calibrate movement; those are handled by separate systems. So its role is to connect external access systems to gate control to authorize or deny entry.