A Wiegand interface is most commonly used for what purpose in access control?

A Wiegand interface is most commonly used

Multiple choice — select the best answer

ATransmitting card data from a reader to a control panel
BPowering electromagnetic locks
CProgramming access schedules
DEncrypting card credentials

✓ Correct answer: A. Transmitting card data from a reader to a control panel The Wiegand interface is a widely used communication protocol for transmitting card data (card number) from a credential reader to an access control panel. It is a legacy protocol with no built-in encryption.

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Topic: Electronic Access Control

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