What is Wiegand

Larry Wile Updated by Larry Wile

What is Wiegand?

A Wiegand device refers to a type of electronic device commonly used in access control systems. It is named after its inventor, John R. Wiegand. A Wiegand device traditionally consists of a card or key fob embedded with a Wiegand wire or coil.

The Wiegand interface is a de facto wiring standard which arose from the popularity of Wiegand effect card readers in the 1980s. It is commonly used to connect a card swipe mechanism to the rest of an access control system. The sensor in such a system is often a "Wiegand wire", based on the Wiegand effect, discovered by John R. Wiegand. A Wiegand-compatible reader is normally connected to a Wiegand-compatible security panel.

For more information, read the Wikipedia article on The Wiegand Interface.

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